September weather forecastNioumamilima, Comoros
September
Weather in September
Moving into September, Nioumamilima, Comoros experiences further decrease in windspeed from 18km/h (11.2mph) in August to 12.9km/h (8mph). The reduction in wind speed might bring about calmer ocean waters, hence making boat rides smoother. There's a slight increase in rainfall; however, it remains relatively low. As we forge ahead into October, anticipate a noticeable increase in average rainfall and further reduction in wind speed.Temperature
Nioumamilima witnesses its lowest temperatures during July through September, when the average high-temperature reaches 25.3°C (77.5°F).Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 8.4 days and accumulates 11mm (0.43") of precipitation.Daylight
In Nioumamilima, Comoros, the average length of the day in September is 12h and 2min.On the first day of September, sunrise is at 06:09 and sunset at 18:02. On the last day of the month, sunrise is at 05:50 and sunset at 18:02 EAT.
Sunshine
In Nioumamilima, Comoros, 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 reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: During September, 7 as the daily maximum UV index converts into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nioumamilima, 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
Nioumamilima, 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
Nioumamilima, 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
Nioumamilima, 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
Nioumamilima, 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
Nioumamilima, 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
Nioumamilima, 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
Nioumamilima, 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
Nioumamilima, 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
Nioumamilima, 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
Nioumamilima, 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).
