September weather forecastKelle, Niger

September

Weather in September

September brings a respite from the rains in Kelle, Niger as precipitation drops significantly to 9mm (0.35"). The transition into the dry season is marked by a decrease in the average temperature, humidity, and cloud cover percentage. The generally warm and dry weather conditions make it a good month for travel and outdoor activities. Also, the wind speed decreases, lending a calmness to the environment. However, early morning and late evening can be relatively cooler.

Temperature

Kelle's September reports an average high-temperature of a very hot 37.6°C (99.7°F), exhibiting a minor difference from August. Throughout September, the average low-temperature dips to a moderately hot 28.3°C (82.9°F).

Humidity

The average relative humidity in September is 36%.

Rainfall

In September, the rain falls for 4.2 days. Throughout September, 9mm (0.35") of precipitation is accumulated. In Kelle, during the entire year, the rain falls for 36.7 days and collects up to 133mm (5.24") of precipitation.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of the month, sunrise is at 06:07 and sunset at 18:31. On the last day of September, sunrise is at 06:09 and sunset at 18:09 WAT.

Sunshine

In September, the average sunshine is 9.8h.

UV index

In Kelle, the average daily maximum UV index in September is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 8 in September translates into the following recommendations:
Be constantly cautious; skin and eyes can be quickly affected if left unprotected. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

The high-temperature, in September, in Kelle, records 37.6°C (99.7°F), while the low-temperature is 28.3°C (82.9°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is appraised at 40°C (104°F).

In September, the average relative humidity is 36%.

In September, the rain falls for 4.2 days. Throughout September, 9mm (0.35") of precipitation is accumulated.

In Kelle, the average day length in September is 12h and 13min.

In September, on the first day of the month, sunrise is at 06:07 and sunset at 18:31. On the last day of the month, sunrise is at 06:09 and sunset at 18:09 WAT.

In September, the average sunshine duration is 9.8h.

In Kelle, the average daily maximum UV index in September is 8. A UV Index value of 8 to 10 symbolizes a very high hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Kelle, Niger

  • Average high temperature in September: 37.6°C

The warmest month (with the highest average high temperature) is May (41.5°C).
The month with the lowest average high temperature is December (30.6°C).

  • Average low temperature in September: 28.3°C

The month with the highest average low temperature is June (30°C).
The coldest month (with the lowest average low temperature) is January (15.1°C).

Average pressure in September
Kelle, Niger

  • Average pressure in September: 1009.5mbar

The month with the highest atmospheric pressure is January (1014.1mbar).
The month with the lowest atmospheric pressure is May (1007.1mbar).

Average wind speed in September
Kelle, Niger

  • Average wind speed in September: 11.9km/h

The windiest month (with the highest average wind speed) is December (19.7km/h).
The calmest month (with the lowest average wind speed) is September (11.9km/h).

Average humidity in September
Kelle, Niger

  • Average humidity in September: 36%

The month with the highest relative humidity is August (50%).
The month with the lowest relative humidity is March (11%).

Average rainfall in September
Kelle, Niger

  • Average rainfall in September: 9mm

The wettest month (with the highest rainfall) is August (72mm).
The driest months (with the least rainfall) are January, February, March, November and December (0mm).

Average rainfall days in September
Kelle, Niger

  • Average rainfall days in September: 4.2 days

The month with the highest number of rainy days is August (12.5 days).
The months with the least rainy days are January, November and December (0 days).

Average daylight in September /
Average sunshine in September
Kelle, Niger

  • Average daylight in September: 12h and 12min

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 48min

The months with the most sunshine are May and June (Average sunshine: 12h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 42min).

Average sunshine days in September
Kelle, Niger

  • Average sunshine days in September: 24.3 days

The months with the most sunshine days are January and December (31 days).
The month with the least sunshine days is August (16.5 days).

Average UV index in September
Kelle, Niger

  • Average UV index in September: 8

The month with the highest UV index is April (UV index 9).
The months with the lowest UV index are January and December (UV index 6).

Average cloud cover in September
Kelle, Niger

  • Average cloud cover in September: 14

The month with the most cloud cover is August (Cloud cover 28).
The months with the least cloud cover are January, November and December (Cloud cover 3).

Average visibility in September
Kelle, 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).