September Weather in Douala, Cameroon

Last updated: August 21, 2025

September in Douala, Cameroon is characterized by warm temperatures and high humidity, creating a tropical atmosphere. Maximum temperatures can reach 31°C (89°F), while the average settles around 26°C (79°F), with minimums of 22°C (73°F). This month sees significant rainfall, accumulating to 416 mm (16.4 in) over 29 days of precipitation, adding to the lush greenery that the region is known for. The high humidity level of 87% contributes to a muggy feel, making it essential for visitors and residents alike to stay hydrated and seek respite from the heat.

September Temperature in Douala

In September, Douala, Cameroon continues to experience a warm tropical climate, characterized by a minimum temperature of 22°C (73°F) and a maximum reaching up to 31°C (89°F). The average temperature settles at 26°C (79°F), mirroring trends observed in the preceding months of July and August, where evenings remain mild and pleasantly warm. This slight decrease in average temperatures signifies the subtle transition towards the end of the rainy season, while daytime highs still provide ample warmth. As the humidity lingers, visitors can expect a mix of sunny days and occasional rain, making September a dynamic month in Douala's annual climatic rhythm.

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

The chart illustrates September temperature patterns in Douala, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Douala, 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).
JanFebMarAprMayJunJulAugSepOctNovDec818282818180787878798081
Data source: Temperature data for Douala 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 Douala

September in Douala, Cameroon, marks a significant point in the rainfall calendar, with 416 mm (16.4 in) of precipitation recorded over 29 days. This volume continues the trend of heavy rainfall seen during the peak months of the rainy season, following July’s staggering 476 mm and August’s 377 mm. While there is a slight drop from August, September still showcases a robust average of rainfall, exemplifying the tropical climate’s characteristic lushness. Notably, this month often heralds the transition towards the tail end of the rainy season, yet it remains firmly entrenched in the pattern of high precipitation that the region experiences from April through October. The consistent rainfall contributes to Douala's vibrant ecosystems and agricultural productivity, sustaining the region through its demanding rainy period.

September Precipitation Trends in Douala

The chart displays monthly precipitation patterns in Douala, 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 Douala, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec6693225248298343476377416386288109
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Douala

September in Douala, Cameroon, marks a peak in humidity, soaring to an average of 87%. This month continues the upward trend established in the summer, where humidity levels steadily rise from 77% in June to a notable 84% in August. Following a pattern of seasonal fluctuation, September's high humidity directly precedes a gradual decline as the year transitions into October, where levels drop to 86%. Overall, the data reveals a humid environment that is characteristically mild in early months, peaking towards the late summer, providing a unique climate that shapes life in this vibrant coastal city.

September Average Humidity in Douala

This chart illustrates the average monthly humidity levels in Douala, 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 Douala is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%76%74%74%77%77%79%84%87%86%82%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Douala

In September, Douala experiences a UV Index of 12, categorized as extreme, which calls for caution as the risk of harm from unprotected sun exposure remains high. This is consistent with the preceding months, where the UV Index has been notably elevated, maintaining values between 11 and 14 from February through August. The burn time remains critically short at just 10 minutes, reinforcing the need for protective measures if you plan to spend time outdoors. As we move into October, the UV Index holds steady, suggesting that the extreme exposure levels are a persistent feature of the region during this period. To stay updated and ensure your sun safety, check the latest on the Douala UV Index.

Maximum UV Index Levels in Douala for September

The chart shows the monthly maximum UV Index (UVI) for Douala 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 Douala typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec101112141311111212121110
Data source: Douala 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 Douala

As summer fades into autumn, September in Douala, Cameroon, offers a noticeable dip in sunshine, with only 215 hours of sunlight gracing the city. While the year begins with a vibrant burst of light—peaking at 274 hours in March and remaining relatively strong through the early months—September’s count reflects a gradual decline that began in August. This trend continues into October, which sees a modest increase to 245 hours, suggesting the onset of the drier season soon after the rains. Despite the lower sunshine tally this month, the warm tropical climate of Douala remains inviting, promising moments of brightness even amidst the clouds.

Monthly Sunshine Duration in Douala: September Highlighted

The September sunshine duration represents the total number of hours Douala 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.
JanFebMarAprMayJunJulAugSepOctNovDec249h268h274h262h263h259h256h243h215h245h259h294h
Data source: Douala September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Douala During September

In Douala, Cameroon, the likelihood of sunny weather sees a considerable decline as the year progresses, particularly in the months leading up to September. With only a 13% chance of sunshine this month, September joins the ranks of August and October as one of the cloudier periods of the year. Notably, the sunniness starts off comparatively stronger in January at 38%, then diminishes through a steady downward trend, reaching a low in the mid-year. This pattern reflects the region's unique climate dynamics, making September one of those transitional months where sunshine becomes a rare treat rather than the norm. As such, visitors looking for clear skies might want to plan their trips for earlier in the year or brace for the possibility of overcast days.

Percentage of Sunny Days in September in Douala

The chart illustrates the percentage of sunny days in Douala 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 Douala experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%35%22%16%16%19%17%14%13%12%23%33%
Data source: Douala September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Douala in September

In September, Douala, Cameroon experiences a consistent 12 hours of daylight, aligning with the trend observed from March through October. This period marks a delightful balance of light that encourages outdoor activities and vibrant social interactions. As the year progresses from January's shorter hours to the full-bodied daylight of the mid-year months, September retains this generous illumination before transitioning to shorter days in November and December. This steady daylight not only highlights the tropical charm of Douala but also enhances the city's lively atmosphere, making September a wonderful time to explore its rich culture and natural beauty.

Average Daylight Hours in Douala for September

The chart illustrates the variation in daylight duration in Douala throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 54m11h 58m12h 4m12h 11m12h 17m12h 20m12h 18m12h 13m12h 7m12h11h 55m11h 53m
Data source: Douala daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Douala

As September unfolds in Douala, Cameroon, the winds whisper a gentle consistency, with an average speed of 1.5 m/s (3 mph), mirroring the stillness of the preceding summer months. This steady breeze reflects a trend observed throughout the year: a subtle decline in wind speeds from the lively January peak of 1.8 m/s (4 mph). While the transition from the vibrant, breezier earlier months settles into this calm rhythm, it’s a reminder of the region's tropical charm. With autumn just around the corner, the winds remain a soft companion, inviting residents and visitors alike to pause and savor the serene atmosphere typical of this coastal city.

Average September Wind Speed in Douala

The chart displays monthly wind speed patterns in Douala, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.81.91.71.51.31.41.51.51.5 m/s1.41.41.6
Data source: Douala September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Douala Compares to Other Months

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

In September, the weather is characterized by warm temperatures with a minimum of 22°C (73°F), averaging 26°C (79°F), and peaking at 31°C (89°F). However, this month experiences significant rainfall, with a total precipitation of 416 mm (16.4 in) spread over 29 days and high humidity levels at 87%. In contrast, January offers slightly warmer temperatures, with a minimum of 22°C (72°F), an average of 27°C (82°F), and a maximum of 33°C (93°F). Precipitation drops dramatically to 66 mm (2.6 in) over 21 days, accompanied by lower humidity at 76%. For a detailed outlook on January weather, visit Douala weather in January.

September and February in Douala present quite different weather patterns. In September, the temperatures range from a minimum of 22°C (73°F) to a maximum of 31°C (89°F), with an average of 26°C (79°F). This month also sees substantial rainfall, with 416 mm (16.4 in) of precipitation over 29 days, contributing to a high humidity level of 87%. In contrast, February experiences a warmer climate, with temperatures ranging from 22°C (72°F) to 33°C (92°F) and an average of 28°C (83°F). Rainfall is significantly lower at 93 mm (3.7 in) over 25 days, and humidity drops to 76%. For a detailed overview, you can check Douala weather in February.

In comparing September and March weather, September tends to be slightly cooler with average temperatures ranging from 22°C (73°F) to a maximum of 31°C (89°F), while March boasts warmer averages of 23°C (73°F) to a peak of 34°C (93°F). Precipitation is significantly higher in September at 416 mm (16.4 in) over 29 days, compared to March's 225 mm (8.9 in) across 28 days. Additionally, September experiences higher humidity levels at 87%, whereas March has a lower humidity of 74%. For more detailed information, check out Douala weather in March.

In comparing the weather in September and April, September tends to be slightly cooler with average temperatures ranging from a minimum of 22°C (73°F) to a maximum of 31°C (89°F), while April experiences warmer conditions, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 34°C (94°F). Both months are characterized by significant rainfall, but September sees a higher precipitation level of 416 mm (16.4 in) over 29 days, compared to April's 248 mm (9.8 in) over 27 days. Additionally, the humidity in September is notably higher at 87%, whereas April has a more comfortable humidity level at 74%. For a more detailed look at April weather, you can visit Douala weather in April.

In comparing the weather between September and May, both months exhibit warm temperatures, but May tends to be slightly hotter overall. September has an average temperature of 26°C (79°F), with a maximum of 31°C (89°F), while May's average temperature is 27°C (81°F), peaking at 34°C (93°F). Precipitation levels are notably higher in September, with 416 mm (16.4 in) of rain over 29 days, compared to 298 mm (11.7 in) over 28 days in May. Additionally, humidity is elevated in September at 87%, whereas May sees a lower humidity level of 77%. For more detailed information about May weather specifically, you can check Douala weather in May.

In comparing the weather of September and June, both months experience similar average temperatures, with June having a slight edge in maximum temperature at 32°C (90°F) compared to September's 31°C (89°F). September, however, is characterized by higher humidity levels at 87%, compared to June's 77%, making it feel more oppressive. Interestingly, while both months have the same number of rainy days—29—the total precipitation in September (416 mm) is significantly higher than in June (343 mm), indicating a wetter month overall. For a detailed look at June's weather, you can refer to Douala weather in June.

In comparing the weather of September and July, we observe a striking similarity in temperature, with both months exhibiting an average temperature of around 26°C (79°F). However, July tends to be slightly warmer, featuring a minimum temperature of 23°C (74°F) as opposed to September’s 22°C (73°F). While both months experience high humidity levels, September is notably more humid at 87% compared to July’s 79%. Additionally, September sees more precipitation, with 416 mm (16.4 in) over 29 days, whereas July experiences 476 mm (18.8 in) over just 30 days. For further insights on the weather during July, you can visit Douala weather in July.

In September, the weather remains warm, with minimum temperatures averaging around 22°C (73°F) and maximums reaching up to 31°C (89°F). However, it is slightly wetter than August, experiencing 416 mm (16.4 in) of precipitation over 29 days, compared to August's 377 mm (14.8 in) over 30 days. Additionally, September sees a slight increase in humidity at 87%, compared to August's 84%. Overall, while both months are similar in temperature, September is characterized by more rainfall and higher humidity. For a detailed look at the weather during August, you can check Douala weather in August.

September and October exhibit fairly similar weather patterns, though there are notable differences. In September, temperatures hover between a minimum of 22°C (73°F) and a maximum of 31°C (89°F), with an average temperature of 26°C (79°F). This month also experiences significant rainfall, totaling 416 mm (16.4 in) over 29 days and a high humidity level of 87%.

In contrast, October sees a slight increase in the minimum temperature to 23°C (73°F) and a maximum of 32°C (90°F), while still maintaining the same average of 26°C (79°F). Rainfall decreases slightly to 386 mm (15.2 in) spread over 30 days, with humidity dropping slightly to 86%. For more detailed information, visit Douala weather in October.

In September, the weather is characterized by a warm average temperature of 26°C (79°F) and high humidity at 87%, with daily temperatures ranging between a minimum of 22°C (73°F) and a maximum of 31°C (89°F). The month is also marked by significant rainfall, accumulating to 416 mm (16.4 in) over 29 days. Conversely, November brings slightly warmer temperatures, with an average of 27°C (80°F) and a peak of 32°C (90°F), while the humidity decreases to 82%. Rainfall in November is lower, totaling 288 mm (11.3 in) across 28 days, indicating a slight improvement in the weather conditions compared to September. For more detailed information, you can check Douala weather in November.

In September, the weather typically features warmer conditions, with average temperatures ranging from a minimum of 22°C (73°F) to a maximum of 31°C (89°F). This month sees significant rainfall, with an average precipitation of 416 mm (16.4 in) over 29 days, resulting in high humidity levels of 87%. In contrast, December offers slightly cooler temperatures, with averages between 23°C (74°F) and 33°C (92°F). The precipitation drastically decreases to 109 mm (4.3 in) over 27 days, leading to a lower humidity of 76%. This makes December a drier and more comfortable month compared to September’s wet, humid conditions. For more detailed information, check out Douala weather in December.

Compare Douala's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Douala

In September, Douala experiences a notable shift in weather, characterized by its high humidity and substantial rainfall, making it one of the wetter months of the year. While temperatures remain relatively stable, with warm averages, the consistent precipitation—spanning nearly every day—sets September apart from the drier months. This tropical climate can create a lush and vibrant atmosphere, perfect for those who appreciate the rich biodiversity that thrives in such conditions. For a deeper insight into the weather patterns of this bustling city, visit Douala Climate.