September weather forecastMoroni, Comoros
September
Weather in September
September experiences a slight increase in rainfall compared to August, but the city remains relatively drier. Sea temperatures begin to rise again, signifying the imminent end of the dry season. The longer sunshine hours during September add a spark to the city life. The rise in sea temperature creates perfect conditions for sea activities like swimming and sailing. September serves as a transition month, bidding goodbye to the dry season and welcoming a gradually increasing wet period.Temperature
July through September, when the average high-temperature in Moroni reaches 25.3°C (77.5°F), are the coldest months.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.Sea temperature
In September, the average sea temperature in Moroni is 26°C (78.8°F).Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.
Daylight
In Moroni, the average length of the day in September is 12h and 2min.On the first day of September in Moroni, sunrise is at 06:10 and sunset at 18:03. On the last day of the month, sunrise is at 05:50 and sunset at 18:02 EAT.
Sunshine
In Moroni, Comoros, the average sunshine in September is 10.3h.UV index
January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 7 turns into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. 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. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Stay aware! UV radiation is magnified when reflecting off sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Moroni, 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
Moroni, 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
Moroni, 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
Moroni, 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
Moroni, 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
Moroni, 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 sea temperature in September
Moroni, Comoros
- 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 month (with the lowest average sea temperature) is August (25°C).
Average daylight in September /
Average sunshine in September
Moroni, 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
Moroni, 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
Moroni, 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
Moroni, 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
Moroni, 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).
