September weather forecastDiffa, Niger
September
Weather in September
September transitions into a more balanced weather pattern, with temperatures oscillating between 28.2°C (82.8°F) and 37.9°C (100.2°F). Rainfall decreases considerably to 17mm (0.67"), spread across 6.2 days, and humidity levels drop to 39%. The climatological pendulum swings towards the drier side again, marking the tail end of the rainy period. Under seven days of rain is the last grip of the wet season before it surrenders to the dry season.Temperature
September's weather in Diffa records an average high-temperature of a still fiery hot 37.9°C (100.2°F), showing little deviation from August. During the month of September, the temperature falls to an average of 28.2°C (82.8°F).Humidity
The average relative humidity in September is 39%.Rainfall
In September, in Diffa, the rain falls for 6.2 days. Throughout September, 17mm (0.67") of precipitation is accumulated. Throughout the year, in Diffa, there are 46 rainfall days, and 134mm (5.28") of precipitation is accumulated.Daylight
In Diffa, the average length of the day in September is 12h and 12min.On the first day of September in Diffa, sunrise is at 05:58 and sunset at 18:20. On the last day of the month, sunrise is at 05:58 and sunset at 17:59 WAT.
Sunshine
In Diffa, the average sunshine in September is 11.8h.UV index
The average daily maximum UV index in September in Diffa is 8. A UV Index value of 8 to 10 symbolizes a very high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 8 in September suggests the following recommendations:
Without adequate protection, skin and eyes might suffer damage. Ensure precautions are in place. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Diffa, Niger
- Average high temperature in September: 37.9°C
The warmest month (with the highest average high temperature) is May (42°C).
The month with the lowest average high temperature is January (30.4°C).
- Average low temperature in September: 28.2°C
The month with the highest average low temperature is June (31.1°C).
The coldest month (with the lowest average low temperature) is January (18.5°C).
Average pressure in September
Diffa, Niger
- Average pressure in September: 1009.6mbar
The month with the highest atmospheric pressure is January (1013.7mbar).
The month with the lowest atmospheric pressure is April (1006.9mbar).
Average wind speed in September
Diffa, Niger
- Average wind speed in September: 12.4km/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 September (12.4km/h).
Average humidity in September
Diffa, Niger
- Average humidity in September: 39%
The month with the highest relative humidity is August (53%).
The months with the lowest relative humidity are March and April (14%).
Average rainfall in September
Diffa, Niger
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is August (77mm).
The driest months (with the least rainfall) are January, February, March, April, November and December (0mm).
Average rainfall days in September
Diffa, Niger
- Average rainfall days in September: 6.2 days
The month with the highest number of rainy days is August (17 days).
The months with the least rainy days are January, November and December (0 days).
Average daylight in September /
Average sunshine in September
Diffa, Niger
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 11h and 48min
The month with the most sunshine is May (Average sunshine: 12h and 12min).
The months with the least sunshine are November and December (Average sunshine: 7h and 42min).
Average sunshine days in September
Diffa, Niger
- Average sunshine days in September: 20.9 days
The months with the most sunshine days are January and December (31 days).
The month with the least sunshine days is August (10.6 days).
Average UV index in September
Diffa, Niger
- Average UV index in September: 8
The months with the highest UV index are April, May and June (UV index 9).
The month with the lowest UV index is December (UV index 6).
Average cloud cover in September
Diffa, Niger
- Average cloud cover in September: 15
The month with the most cloud cover is August (Cloud cover 30).
The months with the least cloud cover are January, November and December (Cloud cover 2).
Average visibility in September
Diffa, 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).
