Last updated: January 18, 2025
Savannah, Ghana, situated within the Koppen-Geiger climate classification of type Aw, experiences a tropical wet and dry climate characterized by marked temperature variations throughout the year. January marks the coolest month, with temperatures dipping to a minimum of 17°C (63°F), while the peak heat is recorded in March, reaching a scorching maximum of 40°C (105°F). The average temperature hovers around 28°C (83°F), underscoring the region's warm climate that influences both local ecosystems and human activity. This climatic profile highlights the unique conditions that define Savannah, positioning it as a significant area of study in climate science and environmental research.
In Savannah, Ghana, temperature patterns exhibit a distinct seasonal rhythm influenced by both the wet and dry seasons. The year begins with cooler temperatures in January, where minimums drop to 17°C (63°F), gradually warming through February as temperatures rise, peaking at a maximum of 40°C (103°F). March and April maintain these elevated temperatures, frequently reaching 40°C (105°F) while nighttime lows remain relatively mild. As May transitions into early wet season, temperatures slightly decrease, with averages around 29°C (85°F). The subsequent months of June through September bring cooler averages, settling around 26°C (79°F), coinciding with the peak rainy season. Finally, as the year draws to a close in October through December, temperatures rebound slightly, with averages returning to 28°C (83°F), contrasting with the cooler winter nights, and highlighting the dynamic interplay between seasonal changes and local climate conditions.
Damongo experiences a significant temperature range throughout the year, with a minimum of 17°C (63°F) in January and a peak maximum of 40°C (105°F) in March. This variation reflects the region's distinct climate patterns, making it important for residents and visitors to prepare accordingly. For detailed monthly temperatures in Damongo, you can refer to the link: monthly temperatures in Damongo.
Precipitation in Savannah, Ghana, exhibits pronounced seasonal variability, closely aligned with the region's wet and dry cycles. The year starts off with minimal rainfall, totaling just 2 mm (0.1 in) in January, and gradually increases throughout the first quarter. By March, rainfall rises to 29 mm (1.2 in), and further intensifies in April with 59 mm (2.3 in), signaling the approach of the wet season. May marks a significant increase in precipitation, accumulating 91 mm (3.6 in) as the rainy period takes hold, ultimately peaking in July and August, where average monthly rainfall reaches approximately 187 mm (7.4 in) and 238 mm (9.4 in), respectively.
The rainy season continues through September with substantial rainfall of 208 mm (8.2 in) before tapering off into drier conditions in October, where 147 mm (5.8 in) is recorded. November sees a drastic reduction, with only 7 mm (0.3 in), followed by a return to dryness in December, which records no rainfall. This precipitation pattern highlights the pronounced seasonal nature of rain in Savannah, with a peak in frequency and intensity during the heart of the wet season, comprising 24 to 25 rainy days from mid-year, distinctly shaping the local ecosystem and agricultural practices.
In Savannah, Ghana, sunshine duration exhibits a clear seasonal trend, predominantly characterized by a steady increase as the year progresses. Starting with 265 hours of sunshine in January, the months leading up to the wet season see a gradual rise, peaking in May with an impressive 329 hours. This sunny period, which includes March and April, leads to longer daylight hours that not only enhance the region’s warmth but also support agricultural productivity. The abundance of sunshine during these months illustrates the favorable conditions for growth before the rainy season begins.
As the wet season takes hold in June and July, sunshine hours begin to decline, yet the drop is not drastic, maintaining around 305 hours and 295 hours, respectively. The trend continues with slightly lower sunshine in August and September, coinciding with the peak of the rainy season. However, as the rains diminish in October, sunshine hours rebound to 303 hours, with the year rounding out with robust sunshine again in November and December, featuring 320 hours and 323 hours. This cyclical pattern of sunshine not only reflects the regional climate but also emphasizes the importance of seasonal light variation for both environmental and human activities in Savannah.
The Ultraviolet (UV) Index in Savannah, Ghana, consistently reflects high to extreme levels throughout the year, indicating a critical need for sun protection. Starting the year, January and February both see a UV Index of 11, classified as extreme, which continues into March with an increase to 12. April marks the highest point in the year at 13, remaining at this extreme level through July. The ten-minute burn time during these months serves as a stark reminder of the intensity of sunlight, necessitating caution for outdoor activities, especially for those with sensitive skin.
As the year progresses into late summer and autumn, the UV Index remains elevated, with 13 continuing through August and September, before slightly decreasing to 12 in October. The index then declines further to 10 in November and 9 in December, transitioning into the very high exposure category, which allows for a longer burn time of 15 minutes. Despite this reduction toward the year's end, the UV levels still necessitate protective measures. This persistent high UV Index underscores the importance of safeguarding against sun exposure in Savannah, particularly between January and September, aligning with the greater need for sun safety awareness among residents and visitors.
UV Risk Categories
In Savannah, Ghana, daylight duration displays a relatively consistent pattern throughout the year, reflecting the region's proximity to the equator. From January to February, the day lasts about 11 hours, providing a balanced daylight experience at the start of the year. As March approaches, the duration increases to 12 hours, a trend that continues through to September. This period of extended daylight supports active lifestyles and agriculture, as longer hours of sunlight are advantageous for outdoor activities and crop cultivation.
As the year progresses into October, daylight duration begins to decrease again, dropping back to 11 hours in November and December. Despite this reduction, the variation in daylight hours is subtle, emphasizing the relatively consistent day length characteristic of Savannah's tropical climate. Overall, the stable daylight duration throughout the year ensures that both the natural environment and human activities are well-adapted to the steady cycle of light and dark, promoting a year-round engagement with the outdoors.
Damongo, Ghana, experiences a tropical climate characterized by high temperatures and seasonal rainfall. Average temperatures range from a minimum of 17°C (63°F) in January to a maximum of 40°C (104°F) in April and March. The rainy season peaks between May and August, with July and August seeing the highest precipitation, averaging 187 mm and 238 mm, respectively. Despite the rainy months, sunshine is abundant, peaking in May with 329 hours. For more detailed information, visit Damongo climate.
In conclusion, Savannah, Ghana, presents a distinctive climatic profile characterized by a tropical wet and dry climate, marked by significant seasonal variations in temperature, precipitation, sunshine duration, UV index, and daylight hours. The warm temperatures coupled with substantial sunlight during the dry months promote vibrant ecosystems and agricultural productivity, while the extreme UV index underscores the need for effective sun protection measures. As the rainy season unfolds, the interplay of precipitation and decreasing sunshine hours shapes the local landscape and influences daily life. Overall, understanding these climatic and environmental patterns is crucial for residents and visitors alike, fostering awareness and preparedness for the unique conditions prevalent in Savannah throughout the year.