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 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
September
Weather in September
Temperature
September's arrival brings an average high-temperature of a still very hot 37.2°C (99°F), slightly deviating from August's 35°C (95°F). During September, Raha records a consistent average nighttime temperature of 28.3°C (82.9°F).Humidity
The average relative humidity in September is 39%.Rainfall
In September, the rain falls for 7.8 days. Throughout September, 29mm (1.14") of precipitation is accumulated. In Raha, during the entire year, the rain falls for 49.7 days and collects up to 183mm (7.2") of precipitation.Daylight
The average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 06:25 and sunset at 18:49. On the last day of the month, sunrise is at 06:27 and sunset at 18:27 WAT.
Sunshine
The average sunshine in September is 9.8h.UV index
In Raha, Niger, the average daily maximum UV index in September is 8. A UV Index estimate of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 8 suggests this advice:
Don't neglect protection; skin and eyes can be burned swiftly if left exposed. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September in Raha?
How much does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Raha, Niger
- Average high temperature in September: 37.2°C
The warmest month (with the highest average high temperature) is May (41.2°C).
The month with the lowest average high temperature is December (31.2°C).
- Average low temperature in September: 28.3°C
The month with the highest average low temperature is June (30.4°C).
The coldest month (with the lowest average low temperature) is January (16.2°C).
Average pressure in September
Raha, Niger
- Average pressure in September: 1010mbar
The month with the highest atmospheric pressure is January (1014.1mbar).
The months with the lowest atmospheric pressure are April and May (1007.5mbar).
Average wind speed in September
Raha, Niger
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is December (18.4km/h).
The calmest month (with the lowest average wind speed) is October (11.6km/h).
Average humidity in September
Raha, Niger
- Average humidity in September: 39%
The month with the highest relative humidity is August (48%).
The month with the lowest relative humidity is March (11%).
Average rainfall in September
Raha, Niger
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is August (78mm).
The driest months (with the least rainfall) are January, February, March, November and December (0mm).
Average rainfall days in September
Raha, Niger
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is August (15.3 days).
The months with the least rainy days are January, November and December (0 days).
Average daylight in September /
Average sunshine in September
Raha, Niger
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 9h and 5min
The months with the most sunshine are February, March, April, May, June, October, November and December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 9h and 12min).
Average sunshine days in September
Raha, Niger
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is January (31 days).
The month with the least sunshine days is August (12.9 days).
Average UV index in September
Raha, Niger
- Average UV index in September: 8
The month with the highest UV index is May (UV index 9).
The months with the lowest UV index are January and December (UV index 6).
Average cloud cover in September
Raha, Niger
- Average cloud cover in September: 14
The month with the most cloud cover is August (Cloud cover 26).
The month with the least cloud cover is November (Cloud cover 3).
Average visibility in September
Raha, Niger
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
