Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
August and September, with an average high-temperature of 25.4°C (77.7°F), are the coldest months.Humidity
In Fomboni, the average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall in Fomboni. Rain falls for 6.4 days and accumulates 8mm (0.31") of precipitation.Sea temperature
July through September, with an average sea temperature of 26°C (78.8°F), are months with the coldest seawater.Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Daylight
In Fomboni, the average length of the day in September is 12h and 2min.On the first day of September, sunrise is at 06:08 and sunset at 18:01. On the last day of the month, sunrise is at 05:49 and sunset at 18:01 EAT.
Sunshine
In Fomboni, the average sunshine in September is 8.3h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Fomboni. 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 health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
FAQ
What is the coldest month in Fomboni?
What is the temperature in September in Fomboni?
What is the average humidity in September in Fomboni?
What is the driest month in Fomboni?
How many days does it rain in September in Fomboni?
What are the months with the coldest sea water in Fomboni?
What is the sea water temperature in September in Fomboni?
What is the average length of the day in September in Fomboni?
When are sunrise and sunset in September in Fomboni?
How many hours of sunshine does Fomboni have in September?
When is the highest UV index in Fomboni?
What is the month with the lowest UV index in Fomboni?
How high is the UV index in September in Fomboni?
Average temperature in September
Fomboni, Comoros
- 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: 24.7°C
The months with the highest average low temperature are February and March (28°C).
The coldest months (with the lowest average low temperature) are August and September (24.7°C).
Average pressure in September
Fomboni, Comoros
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is August (1017mbar).
The month with the lowest atmospheric pressure is February (1010.3mbar).
Average wind speed in September
Fomboni, Comoros
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is July (20.9km/h).
The calmest month (with the lowest average wind speed) is September (11.4km/h).
Average humidity in September
Fomboni, Comoros
- Average humidity in September: 75%
The month with the highest relative humidity is November (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
Fomboni, Comoros
- Average rainfall in September: 8mm
The wettest month (with the highest rainfall) is January (179mm).
The driest month (with the least rainfall) is September (8mm).
Average rainfall days in September
Fomboni, Comoros
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is January (23.2 days).
The month with the least rainy days is September (6.4 days).
Average sea temperature in September
Fomboni, 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 months (with the lowest average sea temperature) are July, August and September (26°C).
Average daylight in September /
Average sunshine in September
Fomboni, Comoros
- Average daylight in September: 12h and 2min
The month with the longest days is December (Average daylight: 12h and 50min).
The month with the shortest days is June (Average daylight: 11h and 25min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is December (Average sunshine: 10h and 30min).
The months with the least sunshine are May and August (Average sunshine: 7h and 0min).
Average sunshine days in September
Fomboni, Comoros
- Average sunshine days in September: 20.4 days
The month with the most sunshine days is September (20.4 days).
The month with the least sunshine days is January (5.3 days).
Average UV index in September
Fomboni, Comoros
- 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
Fomboni, Comoros
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in September
Fomboni, 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).
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