September Weather in Koforidua, Ghana

Last updated: August 21, 2025

September in Koforidua, Ghana, showcases a warm tropical climate, with daytime temperatures peaking at a delightful 31°C (89°F) and an average of 25°C (78°F). As the month progresses, the weather turns characteristically humid, with levels soaring to 92%, creating a lush atmosphere. However, residents and visitors should be prepared for frequent rain, as September records a significant 204 mm (8.0 in) of precipitation over 28 days, resulting in a vibrant green landscape. This dynamic weather pattern not only shapes daily life but also enhances the natural beauty of this enchanting region.

September Temperature in Koforidua

In September, Koforidua, Ghana experiences a slightly warmer and comfortable climate with temperatures that range from a minimum of 21°C (70°F) to a maximum of 31°C (89°F). The average temperature hovers around 25°C (78°F), reflecting a gradual transition to the warmer tones that characterize the later months of the year. This slight uptick in nighttime warmth compared to August, combined with a stable high, suggests a slowly warming atmosphere as the region moves toward October. Overall, September offers pleasant weather, making it an ideal time for both locals and visitors to enjoy outdoor activities.

September Weather in Koforidua: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Koforidua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koforidua, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec818382828179777777798081
Data source: Temperature data for Koforidua generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Koforidua

September marks a significant peak in precipitation for Koforidua, Ghana, with 204 mm (8.0 in) of rain falling over an impressive 28 days. This month stands out not only for its high rainfall volume but also for the consistent daily showers that characterize the transition into the wetter season. As the month unfolds, residents experience a lush transformation in the landscape, thanks to the abundant moisture that surpasses the rainfall of the preceding months, notably July and August. This surge in precipitation showcases September as a pivotal month in the annual rainfall cycle, setting the stage for the ensuing months of October and November, which also receive substantial rainfall but are slightly less intense.

September Precipitation Trends in Koforidua

The chart displays monthly precipitation patterns in Koforidua, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Koforidua, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec21591111091571901781112041969138
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Koforidua

In Koforidua, Ghana, September marks a peak in humidity, reaching an impressive 92%. This month continues the trend of rising moisture levels that began in the warmer months, starting from 73% in January and steadily climbing to an astonishing 90% in August. The gradual increase reflects the region's tropical climate, with humidity levels consistently gaining through the spring and summer. Following September's peak, October sees a slight drop to 89%, but overall, the latter part of the year remains significantly more humid than the beginning. This persistent humidity not only influences weather patterns but also shapes the vibrant ecosystems and lifestyles of the community throughout the year.

September Average Humidity in Koforidua

This chart illustrates the average monthly humidity levels in Koforidua, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Koforidua is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%74%76%77%81%82%83%90%92%89%81%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Koforidua

In September, Koforidua experiences a UV Index of 13, which classifies the sun's rays as extreme and necessitates a burn time of only 10 minutes for unprotected skin. This continues the trend of high UV levels seen throughout the year, particularly from February to August, when the index consistently reaches extreme levels. As we transition into October, the index slightly dips to 12, yet remains in the extreme category. This pattern highlights the need for ongoing sun protection in Koforidua, especially as the sun's intensity peaks in the earlier months. For more detailed information on the UV Index throughout the year, visit Koforidua UV Index.

Maximum UV Index Levels in Koforidua for September

The chart shows the monthly maximum UV Index (UVI) for Koforidua in September, 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. In September, the maximum UV index in Koforidua typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10111214131211121312109
Data source: Koforidua September UVI data generated using information from the Copernicus Climate Change Service.

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.

September Sunshine in Koforidua

September in Koforidua, Ghana, finds itself basking in 260 hours of sunshine, marking a gentle decline from the vibrant summer months of July and August, which offered 278 and 290 hours respectively. This subtle drop signals the transition towards the end of the rainy season, with sunlight hours generally dipping as the year progresses into the latter months. Interestingly, while this month is one of the lower points for sunlight, it still surpasses the early months of the year, such as January's 252 hours. As the days gradually become shorter, the anticipation for the clearer skies of October and November builds, promising 285 and 298 hours of golden sunshine in the months ahead. Overall, September serves as a reminder of the shifting seasons while still rewarding Koforidua with ample daylight.

Monthly Sunshine Duration in Koforidua: September Highlighted

The September sunshine duration represents the total number of hours Koforidua experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec252h277h304h304h297h261h278h290h260h285h298h314h
Data source: Koforidua September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Koforidua During September

In Koforidua, Ghana, the likelihood of sunny weather sees a significant dip in September, dropping to just 15%—one of the lowest probabilities of the year. This trend highlights the shift from the relatively sunnier months of January and December, both boasting a 52% chance of sunshine, to the overcast conditions typical of the rainy season. As the year progresses, the chances of clear skies decline markedly from February’s 46% to August’s mere 12%, with September remaining under the cloud cover. The gradual resurgence of sunshine begins again in October, where sunny days rise to 27%, hinting at a more favorable climate ahead.

Percentage of Sunny Days in September in Koforidua

The chart illustrates the percentage of sunny days in Koforidua throughout the year, with September highlighted. 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 Koforidua experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec52%46%33%31%34%18%20%12%15%27%45%52%
Data source: Koforidua September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Koforidua in September

In Koforidua, Ghana, the daylight duration exhibits a consistent pattern throughout the year. From January to August, residents enjoy approximately 11 to 12 hours of sunlight daily, with a gradual increase in daylight as the months progress, peaking at 12 hours from March through August. Interestingly, September maintains this trend, offering another month of 12 hours of daylight before a slight decline in October. This stable daylight duration not only enhances the beauty of the region but also supports a variety of outdoor activities and agricultural practices throughout the summer months. As the year winds down towards November and December, daylight hours recede back to 11 hours, providing a gentle transition into the shorter days of the year.

Average Daylight Hours in Koforidua for September

The chart illustrates the variation in daylight duration in Koforidua throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 47m11h 55m12h 4m12h 14m12h 23m12h 27m12h 25m12h 17m12h 7m11h 58m11h 49m11h 45m
Data source: Koforidua daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Koforidua

In September, the wind in Koforidua, Ghana, takes a gentle breath, with an average speed of just 1.8 m/s (4 mph). This slight decrease marks a transition from the more robust breezes of the preceding months, where July and August recorded higher speeds of 2.7 m/s (6 mph) and 2.5 m/s (6 mph), respectively. As the year begins to wind down, September’s calming currents suggest a shift towards a more tranquil atmosphere, foreshadowing the stillness of October and November. The patterns observed indicate a gradual tapering in wind strength as the year progresses, making September a serene and pleasant month for appreciating the gentle whispers of nature in this vibrant part of Ghana.

Average September Wind Speed in Koforidua

The chart displays monthly wind speed patterns in Koforidua, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.22.42.22.31.92.72.51.8 m/s1.71.61.8
Data source: Koforidua September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Koforidua Compares to Other Months

Weather in Koforidua varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Koforidua, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 31°C (89°F), with an average of 25°C (78°F). This month is characterized by high humidity at 92% and significant rainfall, totaling 204 mm (8.0 in) across 28 days. In contrast, January offers warmer conditions, with minimum temperatures around 20°C (67°F) and maximums reaching 35°C (96°F), while the average temperature rises to 27°C (82°F). This month experiences much lower precipitation, only 21 mm (0.8 in) over 5 days, and a drop in humidity to 73%. For a detailed look at weather conditions during this month, you can check Koforidua weather in January.

September and February exhibit distinct weather patterns, showcasing the transition between seasons. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 31°C (89°F), with an average of 25°C (78°F). This month is characterized by high humidity at 92% and significant rainfall, accumulating 204 mm (8.0 in) over 28 days. In contrast, February experiences warmer temperatures, with a minimum of 21°C (71°F), an average of 28°C (83°F), and a peak of 37°C (98°F). Precipitation is noticeably lower in February, with only 59 mm (2.3 in) across 11 days, and humidity drops to 74%. For more details on Koforidua’s weather, you can visit Koforidua weather in February.

In September, the weather is characterized by milder temperatures, with a minimum of 21°C (70°F) and an average of 25°C (78°F), while the maximum can reach up to 31°C (89°F). The month sees considerable rainfall, accumulating to 204 mm (8.0 in) over 28 days, accompanied by high humidity levels of 92%. In contrast, March experiences warmer conditions, with a minimum temperature of 22°C (72°F) and an average of 28°C (82°F). The maximum can soar to 37°C (98°F), but precipitation is relatively lower at 111 mm (4.4 in) over 18 days, and the humidity is less oppressive at 76%. For more detailed insights into March's climate, you can visit Koforidua weather in March.

When comparing the weather in September and April, it's evident that both months exhibit warm temperatures but with distinct characteristics. September has a lower average temperature of 25°C (78°F) and is marked by high humidity at 92%, alongside significant rainfall totaling 204 mm (8.0 in) over 28 days. In contrast, April features a higher average temperature of 28°C (82°F) and peaks at 35°C (95°F), but with less rainfall at 109 mm (4.3 in) over 20 days and lower humidity at 77%. These differences create a more humid and wet atmosphere in September, while April tends to be hotter and drier. For more detailed insights, you can explore Koforidua weather in April.

In comparing the weather between September and May, both months showcase warm temperatures, though May tends to be slightly hotter with average highs reaching 34°C (93°F) compared to September's maximum of 31°C (89°F). Interestingly, September experiences more rainfall, with 204 mm (8.0 in) of precipitation spread across 28 days, whereas May sees less precipitation at 157 mm (6.2 in) over 23 days. Humidity levels are also higher in September at 92%, compared to May's 81%. For a more detailed look at weather conditions, you can check out Koforidua weather in May.

When comparing the weather in September and June, both months experience relatively warm temperatures, with September averaging 25°C (78°F) and June slightly warmer at 26°C (79°F). The maximum temperatures in June can reach up to 33°C (91°F), while in September, the peak temperature is 31°C (89°F). In terms of precipitation, September is wetter, receiving 204 mm (8.0 in) over 28 days, compared to June's 190 mm (7.5 in) over 25 days. Additionally, September's humidity is higher at 92%, contrasting with June's 82%. For more detailed information on June's weather, you can check Koforidua weather in June.

In comparing the weather between September and July, we find that both months exhibit similar temperature patterns, with average temperatures hovering around 25°C (77°F). However, September tends to be slightly warmer, with a minimum of 21°C (70°F) compared to July's minimum of 20°C (69°F), and both months have a maximum temperature of 31°C (88°F for July and 89°F for September).

Notably, September experiences significantly higher precipitation, totaling 204 mm (8.0 in) over 28 days, while July sees 178 mm (7.0 in) over 25 days. Additionally, September's humidity level is higher at 92%, compared to July's 83%. This combination of increased rainfall and humidity in September makes it feel more humid than the warmer month of July. For more detailed information on weather specifics in July, you can refer to this link: Koforidua weather in July.

In comparing the weather between September and August, both months exhibit similar temperature ranges, with September having slightly higher minimum and average temperatures. September's temperatures range from a minimum of 21°C (70°F) to a maximum of 31°C (89°F), while August sees a minimum of 20°C (68°F) with the same high of 31°C (89°F). However, September is notably wetter, recording 204 mm (8.0 in) of precipitation over 28 days compared to August's 111 mm (4.4 in) over 21 days. Additionally, with humidity levels reaching 92% in September, it is slightly more humid than August's 90%. For those interested in more detailed August weather, you can refer to this link: Koforidua weather in August.

In comparing the weather of September and October, we observe a slight increase in temperature, with October recording a minimum of 22°C (72°F) and an average of 26°C (79°F), compared to September's minimum of 21°C (70°F) and average of 25°C (78°F). October also sees a maximum temperature of 32°C (90°F), slightly up from September's 31°C (89°F). Notably, while both months experience considerable rainfall, October has slightly less precipitation at 196 mm (7.7 in) over 27 days, compared to September's 204 mm (8.0 in) over 28 days. Additionally, humidity decreases slightly in October to 89%, down from September's high of 92%. For more details, you can check the Koforidua weather in October.

In comparing September and November, both months maintain relatively warm temperatures, with September showcasing a minimum of 21°C (70°F), an average of 25°C (78°F), and a maximum of 31°C (89°F). In contrast, November sees slightly higher temperatures, with a minimum of 21°C (71°F), an average of 27°C (80°F), and a maximum of 33°C (92°F).

While September experiences significantly more rainfall at 204 mm (8.0 in) over 28 days, November has a considerably lower precipitation level at 91 mm (3.6 in) across 22 days. Additionally, humidity drops from a high of 92% in September to 81% in November, making November feel more comfortable. For a detailed look at typical conditions, you can check out Koforidua weather in November.

September and December present contrasting weather conditions. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 31°C (89°F), with an average of 25°C (78°F). This month is characterized by high humidity at 92% and significant rainfall, accumulating 204 mm (8.0 in) over 28 days. In contrast, December features slightly cooler minimum temperatures of 19°C (66°F) and a higher maximum of 34°C (94°F), with an average of 27°C (81°F). Precipitation decreases dramatically to just 38 mm (1.5 in) across 9 days, and humidity drops to a more comfortable 78%. For more details on December weather, visit Koforidua weather in December.

Compare Koforidua's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Koforidua

As September arrives in Koforidua, it ushers in a notable shift in weather patterns characterized by high humidity and frequent rainfall. Unlike the drier months, September experiences nearly daily precipitation, with a total accumulation of 204 mm, creating a lush and vibrant landscape. The temperatures remain relatively moderate, making it a warm yet steamy experience. This month stands out for its intense humidity, often reaching 92%, which can make the heat feel more pronounced. The combination of warmth and moisture not only influences the daily routine but also emphasizes the region's rich climate diversity. For a deeper understanding of how these patterns contribute to the unique atmosphere of Koforidua, visit Koforidua Climate.