September weather forecastMamoudzou, Mayotte

September
Weather in September
September mirrors the climate conditions experienced in August, with minor changes in weather patterns. The average low temperature takes a slight dip to 19°C (66.2°F), creating cool, refreshing evenings. The amount of daylight and sunshine hours remain consistent, providing ample opportunity for daytime activities. As the month marks the end of the summer season, stable climate variables remain in place, offering favorable conditions for holidaymakers and locals alike.Temperature
Mamoudzou experiences lowest temperatures, averaging a high-temperature of 26°C (78.8°F) during June through September.Rainfall
The month with the least rainfall is September, when the rain falls for 5 days and typically collects 30mm (1.18") of precipitation.Sea temperature
July through September, with an average sea temperature of 26°C (78.8°F), are months with the coldest seawater in Mamoudzou.Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.
Daylight
In Mamoudzou, Mayotte, the average length of the day in September is 12h and 2min.On the first day of the month, sunrise is at 06:02 and sunset at 17:55. On the last day of September, sunrise is at 05:42 and sunset at 17:55 EAT.
Sunshine
August through November, with an average of 10h of sunshine, are months with the most sunshine in Mamoudzou.UV index
January through March, September through December, with an average maximum UV index of 12, are months with the highest UV index in Mamoudzou. A UV Index reading of 11, and higher, represents an extreme health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 12 during September translates into the following directions:
Enforce all necessary safety measures, unprotected skin may suffer burns swiftly. 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Following every swim or outdoor workout, a sunscreen with an SPF of not less than 30 should be liberally applied and re-applied frequently, even on overcast days. Be attentive! The UV exposure is heightened with reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mamoudzou, Mayotte
- Average high temperature in September: 26°C
The warmest months (with the highest average high temperature) are January, February, March, April, May, November and December (28°C).
The months with the lowest average high temperature are June, July, August and September (26°C).
- Average low temperature in September: 19°C
The months with the highest average low temperature are January, February and March (23°C).
The coldest months (with the lowest average low temperature) are August and September (19°C).
Average rainfall in September
Mamoudzou, Mayotte
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is January (312mm).
The driest month (with the least rainfall) is September (30mm).
Average rainfall days in September
Mamoudzou, Mayotte
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is January (19 days).
The month with the least rainy days is July (4 days).
Average sea temperature in September
Mamoudzou, Mayotte
- Average sea temperature in September: 26°C
The best months for swimming (with the highest average sea temperature) are January, February, March and April (29°C).
The coldest months (with the lowest average sea temperature) are July, August and September (26°C).
Average daylight in September /
Average sunshine in September
Mamoudzou, 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: 10h
The months with the most sunshine are August, September, October and November (Average sunshine: 10h).
The months with the least sunshine are January, February and March (Average sunshine: 7h).
Average UV index in September
Mamoudzou, Mayotte
- Average UV index in September: 12
The months with the highest UV index are January, February, March, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 8).





