September weather forecastIloni, Mayotte
September
Weather in September
The transition from August to September in Iloni does not introduce major variations in weather parameters. A fraction of increment in rainfall and the amount of sunshine extends the warm weather experience. As compared to August’s peak, the atmospheric pressure somewhat decreases, while lower winds usher in an era of calmness and tranquility.Temperature
August and September bring Iloni's lowest average temperatures, reaching a high of 25.4°C (77.7°F).Humidity
In Iloni, the average relative humidity in September is 74%.Rainfall
The month with the least rainfall in Iloni is September, when the rain falls for 6.3 days and typically collects 4mm (0.16") of precipitation.Daylight
In Iloni, the average length of the day in September is 12h and 2min.On the first day of September, sunrise is at 06:02 and sunset at 17:55. On the last day of the month, sunrise is at 05:42 and sunset at 17:55 EAT.
Sunshine
The average sunshine in September is 8.9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Iloni, Mayotte
- Average high temperature in September: 25.4°C
The warmest months (with the highest average high temperature) are March and April (28.9°C).
The months with the lowest average high temperature are August and September (25.4°C).
- Average low temperature in September: 25°C
The months with the highest average low temperature are February and March (28°C).
The coldest month (with the lowest average low temperature) is August (24.6°C).
Average pressure in September
Iloni, Mayotte
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is August (1016.8mbar).
The month with the lowest atmospheric pressure is February (1010mbar).
Average wind speed in September
Iloni, Mayotte
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is July (21km/h).
The calmest month (with the lowest average wind speed) is September (10.7km/h).
Average humidity in September
Iloni, Mayotte
- Average humidity in September: 74%
The months with the highest relative humidity are January, October and November (76%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Iloni, Mayotte
- Average rainfall in September: 4mm
The wettest month (with the highest rainfall) is January (230mm).
The driest month (with the least rainfall) is September (4mm).
Average rainfall days in September
Iloni, Mayotte
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is January (25.5 days).
The month with the least rainy days is August (5.3 days).
Average daylight in September /
Average sunshine in September
Iloni, Mayotte
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is December (Average sunshine: 10h and 42min).
The month with the least sunshine is April (Average sunshine: 6h and 54min).
Average sunshine days in September
Iloni, Mayotte
- Average sunshine days in September: 21 days
The month with the most sunshine days is August (22.6 days).
The month with the least sunshine days is January (3.7 days).
Average UV index in September
Iloni, Mayotte
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Iloni, Mayotte
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in September
Iloni, Mayotte
- 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).
