September weather forecastCogo, Equatorial Guinea
September
Weather in September
September in Cogo marks a shift in the weather patterns experienced so far. An interesting aspect of September's weather is the spike in average rainfall from previous values, with precipitation values reaching up to 97mm (3.82"). The sky during this month is frequently cloudy, and winds play a significant role in defining the weather conditions. Coming October presents an unpredictability factor, with increased rainfall and overcast conditions being dominant. Greater precipitation levels and increased cloudiness are characteristic future weather conditions for the area.Temperature
In Cogo, September's average high-temperature stands at a still moderately hot 27°C (80.6°F), closely related to the preceding month. September's average low-temperature is a still warm 23.6°C (74.5°F), reflecting a minor difference from the day's peak temperatures.Heat index
The heat index for September is computed to be a hot 30°C (86°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In September, the average relative humidity in Cogo is 85%.Rainfall
In Cogo, during September, the rain falls for 24.4 days and regularly aggregates up to 97mm (3.82") of precipitation. In Cogo, during the entire year, the rain falls for 301.4 days and collects up to 1329mm (52.32") of precipitation.Daylight
The average length of the day in September is 12h and 7min.On the first day of the month, sunrise is at 06:17 and sunset at 18:25. On the last day of September, sunrise is at 06:07 and sunset at 18:14 WAT.
Sunshine
The average sunshine in September is 6.2h.UV index
The months with the lowest UV index are June through October, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cogo, Equatorial Guinea
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is March (29.8°C).
The month with the lowest average high temperature is July (26.3°C).
- Average low temperature in September: 23.6°C
The month with the highest average low temperature is March (25.6°C).
The coldest month (with the lowest average low temperature) is July (22.7°C).
Average pressure in September
Cogo, Equatorial Guinea
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is July (1013.9mbar).
The months with the lowest atmospheric pressure are February and March (1010mbar).
Average wind speed in September
Cogo, Equatorial Guinea
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is August (12.7km/h).
The calmest month (with the lowest average wind speed) is April (7.8km/h).
Average humidity in September
Cogo, Equatorial Guinea
- Average humidity in September: 85%
The month with the highest relative humidity is October (86%).
The months with the lowest relative humidity are February and March (80%).
Average rainfall in September
Cogo, Equatorial Guinea
- Average rainfall in September: 97mm
The wettest month (with the highest rainfall) is October (204mm).
The driest month (with the least rainfall) is July (35mm).
Average rainfall days in September
Cogo, Equatorial Guinea
- Average rainfall days in September: 24.4 days
The month with the highest number of rainy days is October (29.1 days).
The month with the least rainy days is July (17.6 days).
Average daylight in September /
Average sunshine in September
Cogo, Equatorial Guinea
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in September: 6h and 12min
The month with the most sunshine is February (Average sunshine: 8h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).
Average sunshine days in September
Cogo, Equatorial Guinea
- Average sunshine days in September: 2.5 days
The month with the most sunshine days is July (7.8 days).
The month with the least sunshine days is October (1.1 days).
Average UV index in September
Cogo, Equatorial Guinea
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, November and December (UV index 7).
The months with the lowest UV index are June, July, August, September and October (UV index 6).
Average cloud cover in September
Cogo, Equatorial Guinea
- Average cloud cover in September: 66
The month with the most cloud cover is August (Cloud cover 69).
The month with the least cloud cover is February (Cloud cover 36).
Average visibility in September
Cogo, Equatorial Guinea
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September and December (10km).
The months with the lowest visibility are May, October and November (9km).





