September weather forecastBolondo, Equatorial Guinea
September
Weather in September
In Bolondo, the upward trend in temperatures carries into September, with an average high of 26.3°C (79.3°F). The city sees an increase in average rainfall to 26mm (1.02"), signifying a return of the rainy season. As the total rainfall increases, the frequency of rainfall days returns to the higher levels seen earlier in the year. The weather pattern transitions to a mixture of sunny and overcast days. Although the wind strength sees a slight decline from August, it ensures a relatively breezy environment.Temperature
As August turns into September, the average high-temperatures rest at a still moderately hot 26.3°C (79.3°F), showing a minor variation from the prior month. Night temperatures during September stabilize at an average of 23°C (73.4°F), closely mirroring the daytime temperatures.Humidity
September is the most humid month, with an average relative humidity of 88%.Rainfall
In Bolondo, during September, the rain falls for 10.8 days and regularly aggregates up to 26mm (1.02") of precipitation. In Bolondo, during the entire year, the rain falls for 163.3 days and collects up to 288mm (11.34") of precipitation.Daylight
In Bolondo, the average length of the day in September is 12h and 7min.On the first day of September, sunrise is at 06:17 and sunset at 18:25. On the last day of the month, sunrise is at 06:08 and sunset at 18:14 WAT.
Sunshine
In Bolondo, the average sunshine in September is 6.3h.UV index
May through October and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 6 during September translates into the following guidance:
Deter overexposure. Protecting against the sun's effects is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bolondo, Equatorial Guinea
- Average high temperature in September: 26.3°C
The warmest month (with the highest average high temperature) is March (28.8°C).
The months with the lowest average high temperature are July and August (26.1°C).
- Average low temperature in September: 23°C
The months with the highest average low temperature are February and April (24.4°C).
The coldest month (with the lowest average low temperature) is July (22.3°C).
Average pressure in September
Bolondo, Equatorial Guinea
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is July (1013.8mbar).
The month with the lowest atmospheric pressure is February (1009.9mbar).
Average wind speed in September
Bolondo, Equatorial Guinea
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is August (13.2km/h).
The calmest month (with the lowest average wind speed) is April (7.9km/h).
Average humidity in September
Bolondo, Equatorial Guinea
- Average humidity in September: 88%
The month with the highest relative humidity is September (88%).
The months with the lowest relative humidity are January and February (83%).
Average rainfall in September
Bolondo, Equatorial Guinea
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is October (42mm).
The driest month (with the least rainfall) is December (13mm).
Average rainfall days in September
Bolondo, Equatorial Guinea
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is November (18.8 days).
The month with the least rainy days is August (7 days).
Average daylight in September /
Average sunshine in September
Bolondo, 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 0min).
- Average sunshine in September: 6h and 18min
The months with the most sunshine are January and February (Average sunshine: 9h and 0min).
The month with the least sunshine is August (Average sunshine: 6h and 0min).
Average sunshine days in September
Bolondo, Equatorial Guinea
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is November (6.1 days).
Average UV index in September
Bolondo, Equatorial Guinea
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April and November (UV index 7).
The months with the lowest UV index are May, June, July, August, September, October and December (UV index 6).
Average cloud cover in September
Bolondo, Equatorial Guinea
- Average cloud cover in September: 61
The month with the most cloud cover is August (Cloud cover 64).
The month with the least cloud cover is February (Cloud cover 36).
Average visibility in September
Bolondo, Equatorial Guinea
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





