September weather forecastHantsambou, Comoros
September
Weather in September
September’s weather in Hantsambou, Comoros signifies the return of the wetter season. Although there is a slight increase in rainfall from August’s 12mm (0.47") to September’s 11mm (0.43"), it still remains on the lower side, ensuring predominantly clear days. Temperature averages stay pleasantly warm, and the wind speeds continue to decrease from the yearly high in July. With 12 hours of daylight, residents have ample time to partake in outdoor activities and enjoy the pleasant weather conditions.Temperature
July through September, when the average high-temperature reaches 25.3°C (77.5°F), are the coldest months.Humidity
In September, the average relative humidity in Hantsambou 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
The average length of the day in September in Hantsambou is 12h and 2min.On the first day of the month, sunrise is at 06:10 and sunset at 18:03. On the last day of September, in Hantsambou, sunrise is at 05:50 and sunset at 18:02 EAT.
Sunshine
In Hantsambou, 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 of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 7 in September transforms into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hantsambou, 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
Hantsambou, 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
Hantsambou, 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
Hantsambou, 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
Hantsambou, 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
Hantsambou, 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
Hantsambou, 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 30min).
- 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
Hantsambou, 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
Hantsambou, 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
Hantsambou, 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
Hantsambou, 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).





