September weather forecastKoki, Comoros
September
Weather in September
September brings further minor fluctuations in Koki's weather. Rainfall increases mildly to 8mm (0.31"), arguably the least amount of change observed throughout the year. In terms of temperature, the city experiences cool comfort with average highs recorded at 25.4°C (77.7°F). The number of sunshine days hits the highest point, allowing residents to bask in ample sunlight despite shorter daylight hours. There's a drop in wind speed, adding to the calm and serene weather of the month.Temperature
Koki sees its lowest temperatures during August and September, with an average high-temperature of 25.4°C (77.7°F).Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 6.4 days and accumulates 8mm (0.31") of precipitation.Daylight
In Koki, the average length of the day in September is 12h and 2min.On the first day of September in Koki, sunrise is at 06:05 and sunset at 17:58. On the last day of the month, sunrise is at 05:45 and sunset at 17:58 EAT.
Sunshine
The average sunshine in September in Koki is 8.3h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 7 during September translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koki, 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
Koki, 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
Koki, 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
Koki, 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
Koki, 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
Koki, 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 daylight in September /
Average sunshine in September
Koki, 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: 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
Koki, 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
Koki, 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
Koki, 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
Koki, 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).
