Climate of Ghana

Last updated: April 14, 2025

Ghana experiences a diverse climate marked by significant temperature variations and distinct wet and dry seasons. In the North East, temperatures can dip to a minimum of 16°C (60°F) in January, while reaching a scorching 43°C (109°F) in April in the Upper East. Rainfall patterns also vary dramatically across the country, with the Upper East experiencing its driest month in December, boasting 0 mm (0.0 in) of precipitation, contrasted by the Western region's peak in June, where rainfall surges to 290 mm (11.4 in). Humidity levels fluctuate significantly, with an average low of 8% in January in the Upper East, soaring to a robust 93% in September in Western North, illustrating the region's rich climatic tapestry.

Ghana Climate Zones

Ghana’s climate is characterized primarily by the Aw (Tropical Savanna) category according to the Köppen-Geiger classification. This is evident across regions such as Ahafo, Ashanti, Bono, Bono East, and many others including Greater Accra and Upper West. These areas experience distinct wet and dry seasons, allowing for a rich diversity of flora and fauna. The Western region, however, showcases a blend of Am (Tropical Monsoon) and Aw climates, enriching its ecological tapestry and further contributing to the country's vibrant agricultural landscape. Explore each region's unique climate characteristics through the provided links to gain deeper insights into Ghana's diverse environmental wonders.

Köppen-Geiger Climate Classification of Ghana
Climate ZoneDescription
AmTropical monsoon climate with heavy rainfall and high temperatures.
AwTropical savanna climate with a dry season occurring in winter.

Ghana Temperature by Month

In Ghana, temperature patterns exhibit a striking progression throughout the year, showcasing the region's diverse climate. January begins the year with cooler nights, dipping to a minimum of 16°C (60°F) in the North East, while daytime temperatures soar to a sweltering 39°C (102°F) in the Upper East. As February rolls in, the warmth intensifies, especially in Ashanti, where daytime highs can reach an impressive 41°C (106°F). March and April follow suit with similarly scorching temperatures peaking at 43°C (109°F) in the Upper East, signaling the height of the heat. The onset of the rain in May begins to temper the extremes slightly, though highs remain high at 41°C. By mid-year, the mercury starts to stabilize, with July and August witnessing cooler minimums around 19°C (66°F) in Western and consistent maximums of 35°C (96°F). As the year winds down, temperatures slowly decrease with October averaging 18°C (65°F) overnight in Upper West, and December bringing milder conditions at a maximum of 38°C (101°F) in Savannah. Overall, Ghana's climate reflects a dynamic interplay between heat and local rainfall, offering unique weather experiences month by month.

Monthly Temperatures in Ghana

The chart illustrates Ghana's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec828583828179787778798081
Data source: Ghana temperature data aggregated from multiple country locations, generated using Copernicus Climate Change Service information.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

Precipitation Patterns in Ghana

Ghana's precipitation patterns reveal significant regional and temporal variations, particularly influenced by the monsoonal cycles. Notably, the Upper East region experiences a stark contrast, with a minimum precipitation of 0 mm in December, highlighting a pronounced dry season. In contrast, the Western region basks in the peak of the rainy season with an impressive maximum of 290 mm in June, showcasing its lush, verdant landscapes during this time. Additionally, the variability in precipitation days further illustrates this contrast; while Upper West encounters a dry February with 0 days of rain, Western skies are often saturated as October brings an astonishing 29 days of precipitation. These trends highlight the diverse climatic tapestry of Ghana, where rainfall patterns significantly influence agricultural practices, water resources, and overall environmental health.

Precipitation Trends in Ghana

The chart illustrates Ghana's yearly temperature patterns, showing data aggregated from various locations across the region, highlighting seasonal variations and monthly temperature changes.
JanFebMarAprMayJunJulAugSepOctNovDec841106941121281361052041547218
Data source: Ghana precipitation data aggregated from multiple country locations, generated using Copernicus Climate Change Service information.
Choose your preferred precipitation unit

Ghana Humidity

Humidity in Ghana showcases significant seasonal variation, with a striking contrast between dry and wet months. January, particularly in the Upper East region, experiences the lowest humidity levels, dipping to a mere 8%, creating a dry climate that can feel arid. As the year progresses towards September, conditions shift dramatically, especially in Western North, where humidity peaks at an impressive 93%. This transition highlights the distinct wet season, characterized by lush landscapes and increased moisture in the air, showcasing how the climate profoundly influences the country’s environment and daily life.

Average Humidity in Ghana

Ghana's Average Monthly Humidity Levels: This chart highlights Ghana's humidity fluctuations throughout the year, making it easy to compare seasonal trends. See how humidity varies month by month and understand Ghana's climate patterns.
JanFebMarAprMayJunJulAugSepOctNovDec48%55%68%76%81%85%87%91%92%90%83%71%
Data source: Humidity data for Ghana generated using information from the Copernicus Climate Change Service.

Ghana UV Index Trends

Ghana experiences fluctuating UV Index (UVI) levels throughout the year, with notable peaks in specific months and regions. In September, the average daily maximum UVI reaches an impressive 13 in Savannah, indicating a period of intense sun exposure that residents should be mindful of. Conversely, in April, the Volta region sees an even higher average daily max UVI of 14, suggesting that it is crucial for inhabitants and visitors to take protective measures against the sun's harmful rays during this time. These trends highlight the importance of seasonal awareness in UV protection strategies across the country.

Maximum UV Index Levels in Ghana

The chart shows the monthly maximum UV Index (UVI) in Ghana, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec11111214131312131312109
Data source: Ghana UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Sunshine Duration in Ghana

Ghana boasts remarkable sunshine duration throughout the year, with notable peaks in specific regions. For instance, the Upper West region enjoys the most sunlight in May, basking in an impressive 338 hours of sunshine, while January also shines brightly with 266 hours. In contrast, the Western North region experiences its sunniest months in December and September, recording 283 hours and 219 hours respectively. This trend highlights the diverse climate of Ghana, where certain areas receive abundant sunshine, making them ideal for outdoor activities and agricultural pursuits year-round.

Monthly Sunshine Duration in Ghana

The Ghana sunshine duration chart shows the total hours of direct sunlight in Ghana each month, excluding cloudy or obstructed periods, and compares the sunshine duration across different months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec248h272h282h288h292h252h239h230h223h252h281h296h
Data source: Ghana sunshine duration data aggregated from multiple country locations, generated using Copernicus Climate Change Service information.

Chance of Sun in Ghana

Ghana's climate exhibits distinct variations in sunny weather throughout the year, highlighting interesting regional trends. For instance, the month of January in the Upper East region boasts an impressive 91% likelihood of sunny days, making it an ideal time for outdoor activities and exploration. In stark contrast, Bono East sees this figure plummet to a mere 9% in August, indicating a much cloudier and possibly rainy atmosphere during that time. This contrast not only emphasizes the seasonal shifts in Ghana's weather patterns but also serves as a reminder for travelers to plan their visits according to these climatic nuances.

Percentage of Sunny Days in Ghana

The chart illustrates the percentage of sunny days in Ghana throughout the year. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Ghana experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec60%49%26%27%27%18%18%10%13%26%42%58%
Data source: Ghana chance of sun data, generated using information from the Copernicus Climate Change Service.

Average Daylight Hours Across the Ghana

In Ghana's Upper East region, daylight hours exhibit a notable shift between December and June. During the winter month of December, residents enjoy around 11 hours of daylight, making for shorter days that invite cozy indoor activities and reflective moments. As summer arrives in June, the days stretch to approximately 12 hours, allowing for more exploration and outdoor adventures as the vibrant landscape comes alive. This subtle yet significant increase in daylight fosters a dynamic rhythm of life, showcasing how the seasons influence daily routines and engagement with the beautiful environment.

Average Monthly Daylight Hours in Ghana

This chart shows the total daylight hours Ghana receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 44m11h 53m12h 4m12h 15m12h 25m12h 30m12h 27m12h 18m12h 8m11h 56m11h 46m11h 42m
Data source: Ghana daylight hours, calculated by summing the hours between sunrise and sunset for each day.

Climate Breakdown by Ghana Region

The climate in Ahafo, Ghana, offers a warm tropical experience, characterized by its high temperatures and notable humidity throughout the year. January starts with pleasant temperatures ranging from 17°C (63°F) to a peak of 38°C (100°F), gradually escalating into March, where it can reach up to 40°C (104°F). The months of May through October see significant rainfall, particularly in September, when precipitation can soar to 204 mm (8.0 in), paired with humidity levels over 90%. As the year winds down, temperatures and humidity ease slightly, providing a more comfortable atmosphere in December. For more details on what to expect, visit Ahafo climate.

The climate in Ashanti, Ghana, is characterized by its tropical warmth and vibrant humidity. With temperatures ranging from a minimum of 17°C (63°F) in January to peaks reaching 41°C (106°F) in February and March, it offers a warm embrace year-round. The wet season, particularly from May to September, brings substantial rain, culminating in 215 mm (8.5 in) in September, while humidity levels soar to a steamy 92%. As the year progresses, the rhythm of the climate shifts, creating a unique tapestry of weather patterns that shapes life in this lush region. For a deeper dive into the details, visit Ashanti climate.

Bono, Ghana, boasts a tropical climate marked by warm temperatures and high humidity throughout the year. January starts off relatively mild with temperatures ranging from 16°C to 38°C (62°F to 100°F) and low rainfall, while March to May brings higher temperatures and significant precipitation, peaking in September with over 200 mm (8.1 in) of rain. As the year progresses, humidity levels rise, peaking in August at an impressive 91%, creating a lush and vibrant environment. Visitors can expect a warm climate all year, with February and March being notably hot. For more details on seasonal changes and weather patterns, check out the complete Bono climate.

Bono East, Ghana, experiences a tropical climate with warmth prevailing throughout the year. January welcomes cooler temperatures, ranging from a mild 16°C (61°F) to a sweltering 38°C (100°F), while February heats up even more, reaching peaks of 40°C (104°F). As the region transitions into the rainy season from March to September, humidity rises significantly, often exceeding 90% in the peak months of July and August. Heavy rains grace the landscape, particularly in September with an impressive 249 mm (9.8 in) of precipitation, transforming the area into a lush haven. For more details on the distinct seasonal patterns and climate specifics, explore the Bono East climate.

Nestled in Central Ghana, the climate offers a tropical experience characterized by warmth and humidity throughout the year. Temperatures typically range from a pleasant 18°C (64°F) in January to a scorching 38°C (100°F) in February, with averages lingering around 27°C (82°F). The region experiences significant rainfall from May to June, where precipitation peaks at 240 mm (9.5 in), ushering in a lush landscape. Humidity levels climb, reaching up to 92% in September, making for a sultry atmosphere. For a deeper dive into the region's weather patterns, visit Central climate.

Eastern Ghana experiences a tropical climate with distinctive wet and dry seasons that bring a diverse range of temperatures and humidity levels. From January to March, the area enjoys warm conditions, with daytime highs reaching up to 38°C (100°F), while humidity steadily rises, peaking in the rainy months of June to September, when it can exceed 90%. Rainfall is most prolific in May and September, contributing to lush vegetation and vibrant ecosystems. Despite the intense heat and humidity, the cooler evenings provide a refreshing contrast, making this region an intriguing blend of warmth and vitality. For more detailed information, visit Eastern climate.

The climate in Greater Accra, Ghana is characterized by warm temperatures and high humidity throughout the year. January kicks off with pleasant days averaging 28°C (82°F), soaring to a baking 35°C (95°F) in the afternoons, while precipitation remains quite low. As the year progresses, temperatures tend to stay relatively stable, with peaks in February and March mimicking January’s warmth, but the rains begin to pour in May, culminating in the wettest months of June and July. Interestingly, despite this surge in precipitation, the humidity climbs significantly; by August, it reaches a notable 90%, ensuring a tropical feel. For a detailed overview of seasonal patterns, explore the full Greater Accra climate.

The climate in North East Ghana is characterized by a distinct tropical climate with significant temperature variations throughout the year. From January to March, temperatures soar, peaking at a scorching 41°C (107°F) in March, while humidity remains relatively low. As the rainy season approaches in June, bringing heavy rains and humidity levels that can reach 87%, the landscape transforms, providing relief from the intense heat. By August, rainfall accumulates to a remarkable 282 mm (11.1 in), making it the wettest month. This unique climatic pattern, where dry heat gives way to vibrant wetness, shapes the region's diverse ecology and lifestyle. For more details, visit North East climate.

Northern Ghana boasts a distinctive climate with marked seasonal variations that shape its beauty and lifestyle. The region experiences hot temperatures, peaking in March and April, where daily averages can soar to 32°C (90°F) and beyond. Rainfall becomes increasingly prominent from May to September, with August bringing the highest precipitation, measuring around 251 mm (9.9 in), amidst soaring humidity levels that can reach 89%. This tropical climate fosters vibrant landscapes, especially in the lush wet season, making Northern Ghana a fascinating destination for nature lovers. To explore more about what to expect, check out the details on Northern climate.

Nestled in Ghana, Oti experiences a tropical climate marked by a warm and humid atmosphere throughout the year. Temperatures range from a cool 18°C (65°F) in January to a sweltering 39°C (103°F) in March, with the heat often accompanied by high humidity levels, peaking at 91% in September. The rainy season brings significant downpours, especially between June and August, where monthly rainfall can exceed 250 mm (9.8 in), transforming the landscape into a lush paradise. As the year progresses, expect a gentle shift in temperatures and humidity, making Oti a dynamic place to experience nature's seasonal rhythms. For detailed insights, visit Oti climate.

Savannah, Ghana, boasts a tropical climate marked by warm temperatures throughout the year, with averages ranging from 26°C (79°F) in the cooler months to a sizzling 31°C (88°F) in the peak of March. The region experiences its wettest months from June to August, with rainfall reaching up to 238 mm (9.4 in) in August, contributing to high humidity levels that can soar to 89%. As the year progresses, the humidity and precipitation gradually decrease, offering a drier spell in December, which has no recorded rainfall. For those curious about the year-round weather patterns, more information can be found at Savannah climate.

The climate in Upper East, Ghana is characterized by hot temperatures and a distinct wet and dry season. From January to April, temperatures soar, peaking in March and April with maximums reaching 43°C (109°F), while minimal rainfall keeps humidity low. As the rains arrive in June, the landscape transforms, with August bringing the highest precipitation at 246 mm (9.7 in) and humidity levels frequently exceeding 80%, creating a lush environment. As the year winds down in November and December, temperatures moderate again, making it a more comfortable time to explore the region. For a deeper dive into the seasonal patterns, visit Upper East climate.

The climate in Upper West, Ghana, is characterized by warm temperatures and seasonal rainfall that shape the region's unique environment. From January to March, temperatures soar, peaking at around 40°C (105°F) in March, while the humidity steadily rises, leading into the rainy season. June through August brings heavy rains, with August receiving a remarkable 243 mm (9.6 in), and humidity levels consistently above 90%, creating a lush, verdant landscape. As the year ends, conditions stabilize with drier months and moderate temperatures, making the climate a dynamic tapestry that profoundly influences life in Upper West. For a deeper dive into the region's weather patterns, visit Upper West climate.

Nestled in Ghana, the Volta region experiences a distinctive climate that showcases both warmth and moisture throughout the year. From January to March, temperatures soar, with averages around 28°C (83°F), while April through June brings a surge in humidity and rainfall, peaking in June with 214 mm (8.4 in) of precipitation. The rainy season transforms the landscape, often making it feel particularly lush amid the 80-90% humidity that characterizes the months from June to September. As the year progresses, temperatures gradually cool, particularly in July and August, where cooler temperatures linger amidst slightly reduced rainfall. For more insights into the weather patterns of this beautiful region, visit Volta climate.

Western Ghana experiences a tropical climate characterized by warm temperatures year-round. From January to March, daytime highs can reach up to 39°C (103°F), while the humidity steadily increases, peaking in the wet season from May to August, when levels soar to a muggy 90%. The region witnesses its heaviest downpours in June, with an average of 290 mm (11.4 in) of rain, providing a lush landscape that supports diverse ecosystems. Meanwhile, cooler temperatures and lower humidity from December to February create a more comfortable atmosphere for exploration. For more detailed information, visit the Western climate.

The climate in Western North, Ghana offers a warm yet varied experience throughout the year. Temperatures range from a cool 17°C (63°F) in January to a sizzling 38°C (100°F) during the height of February and March, with average temperatures hovering around 28°C (82°F). This region witnesses a pronounced rainy season, with peak precipitation in May and September, bringing over 150 mm of rain and pushing humidity levels up to a steamy 93% in September. Visitors can expect lush landscapes shaped by these conditions, making it a vibrant destination year-round. For more detailed statistics, check out the Western North climate.

Summary and Key Takeaways on the Climate of the Ghana

The climate of Ghana showcases a striking contrast between its extremes and seasonal variability. In the northern regions, temperatures can soar as high as 43°C (109°F) in April, while the humid Western region experiences significant rainfall, peaking at 290 mm (11.4 in) in June. Conversely, December brings a dry spell to the Upper East, where precipitation can drop to 0 mm. Additionally, humidity levels vary drastically, with January in the Upper East experiencing a low of only 8%, while September in Western North sees a staggering 93% humidity. These trends illustrate how Ghana's diverse climate influences its environment and lifestyle, making it a region of contrasts and rich ecological diversity.