September weather forecastKiserian, Kenya

September

Weather in September

September, the first month of the spring in Kiserian, is also a moderately hot month, with an average temperature fluctuating between 24.6°C (76.3°F) and 14.2°C (57.6°F).

Temperature

Kiserian registers an average high-temperature of a still moderately hot 24.6°C (76.3°F) at the commencement of September, closely related to the preceding month. In Kiserian, the nighttime temperature averages to a mild 14.2°C (57.6°F) during September.

Humidity

The average relative humidity in September is 67%.

Rainfall

In Kiserian, during September, the rain falls for 16.5 days and regularly aggregates up to 31mm (1.22") of precipitation. In Kiserian, during the entire year, the rain falls for 241.5 days and collects up to 676mm (26.61") of precipitation.

Daylight

In September, the average length of the day is 12h and 6min.
On the first day of September, sunrise is at 06:30 and sunset at 18:35. On the last day of the month, sunrise is at 06:19 and sunset at 18:26 EAT.

Sunshine

In September, the average sunshine is 9.4h.

UV index

September is the month with the highest UV index in Kiserian, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during September leads to these advisories:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Updated: Jun 22, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Kiserian in September has an average high-temperature of 24.6°C (76.3°F) and an average low-temperature of 14.2°C (57.6°F). In February, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 28°C (82.4°F).

The average relative humidity in September is 67%.

In Kiserian, in September, it is raining for 16.5 days, with typically 31mm (1.22") of accumulated precipitation.

In Kiserian, the average day length in September is 12h and 6min.

In September, on the first day of the month, sunrise is at 06:30 and sunset at 18:35. On the last day of the month, sunrise is at 06:19 and sunset at 18:26 EAT.

The average sunshine duration in September is 9.4h.

The month with the highest UV index is September, with an average maximum UV index of 6.

In Kiserian, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

23°C

24.6°C

25.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.2km/h

9.8km/h

11.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

11.4

10.3

6.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Kiserian, Kenya

Average high temperature in September: 24.6°C

The warmest month (with the highest average high temperature) is February (27°C).
The month with the lowest average high temperature is June (22.4°C).

Average low temperature in September: 14.2°C

The month with the highest average low temperature is April (15.6°C).
The coldest month (with the lowest average low temperature) is July (12.7°C).

Average pressure in September
Kiserian, Kenya

Average pressure in September: 1015.6mbar

The month with the highest atmospheric pressure is July (1016.8mbar).
The months with the lowest atmospheric pressure are February and March (1013.4mbar).

Average wind speed in September
Kiserian, Kenya

Average wind speed in September: 9.1km/h

The windiest month (with the highest average wind speed) is February (11.8km/h).
The calmest month (with the lowest average wind speed) is June (6.1km/h).

Average humidity in September
Kiserian, Kenya

Average humidity in September: 67%

The month with the highest relative humidity is May (84%).
The month with the lowest relative humidity is February (65%).

Average rainfall in September
Kiserian, Kenya

Average rainfall in September: 31mm

The wettest month (with the highest rainfall) is April (125mm).
The driest month (with the least rainfall) is January (28mm).

Average rainfall days in September
Kiserian, Kenya

Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is May (27.7 days).
The month with the least rainy days is January (12.3 days).

Average daylight in September /
Average sunshine in September
Kiserian, Kenya

Average daylight in September: 12h and 6min

The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).

Average sunshine in September: 9h and 24min

The months with the most sunshine are January and February (Average sunshine: 9h and 36min).
The months with the least sunshine are April and May (Average sunshine: 8h and 30min).

Average sunshine days in September
Kiserian, Kenya

Average sunshine days in September: 10.3 days

The month with the most sunshine days is January (15.3 days).
The month with the least sunshine days is April (1.9 days).

Average UV index in September
Kiserian, Kenya

Average UV index in September: 6

The month with the highest UV index is September (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 5).