September weather forecastOurovéni, Comoros
September
Weather in September
September in Ourovéni, Comoros, signals a slight shift in climate, as rainfall sees a minute increase from the record low of August. Incremental rainfall registers at 11mm (0.43"), marking a small yet significant transition from the prevailing dry season. The weather remains calm with consistent temperatures and steady wind speeds. The increase in hours of sunshine adds to the pleasantness of the days. The month of October will bring further increase in rainfall, transitioning closer to the wet season.Temperature
The temperature hits its lowest levels in July through September, recording an average high-temperature of 25.3°C (77.5°F).Humidity
The average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 8.4 days and typically collects 11mm (0.43") of precipitation.Daylight
In September, the average length of the day is 12h and 2min.On the first day of the month, sunrise is at 06:09 and sunset at 18:02. On the last day of September, sunrise is at 05:49 and sunset at 18:01 EAT.
Sunshine
The average sunshine in September is 10.3h.UV index
The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 7 in September translates into these instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ourovéni, Comoros
- Average high temperature in September: 25.3°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, August and September (25.3°C).
- Average low temperature in September: 24°C
The month with the highest average low temperature is March (27.1°C).
The coldest month (with the lowest average low temperature) is August (23.8°C).
Average pressure in September
Ourovéni, Comoros
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is February (1010mbar).
Average wind speed in September
Ourovéni, Comoros
- Average wind speed in September: 12.9km/h
The windiest month (with the highest average wind speed) is July (23.7km/h).
The calmest month (with the lowest average wind speed) is November (11.2km/h).
Average humidity in September
Ourovéni, Comoros
- Average humidity in September: 75%
The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Ourovéni, Comoros
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is January (233mm).
The driest month (with the least rainfall) is September (11mm).
Average rainfall days in September
Ourovéni, Comoros
- Average rainfall days in September: 8.4 days
The months with the highest number of rainy days are March and April (23 days).
The month with the least rainy days is September (8.4 days).
Average daylight in September /
Average sunshine in September
Ourovéni, Comoros
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in September: 10h and 18min
The month with the most sunshine is November (Average sunshine: 11h and 18min).
The month with the least sunshine is May (Average sunshine: 6h and 54min).
Average sunshine days in September
Ourovéni, Comoros
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is April (5.8 days).
Average UV index in September
Ourovéni, Comoros
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in September
Ourovéni, Comoros
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are August and September (Cloud cover 20).
Average visibility in September
Ourovéni, Comoros
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





