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
Weather in September
Temperature
The arrival of September is marked by an average high-temperature of a still moderately hot 24.6°C (76.3°F), bearing a close resemblance to August. Athi River records an average low-temperature of 14.2°C (57.6°F) throughout the month of September.Humidity
The average relative humidity in September is 67%.Rainfall
In September, the rain falls for 16.5 days. Throughout September, 31mm (1.22") of precipitation is accumulated. In Athi River, during the entire year, the rain falls for 241.5 days and collects up to 676mm (26.61") of precipitation.Daylight
In Athi River, Kenya, the average length of the day in September is 12h and 6min.On the first day of the month, sunrise is at 06:29 and sunset at 18:34. On the last day of September, in Athi River, sunrise is at 06:18 and sunset at 18:25 EAT.
Sunshine
In Athi River, the average sunshine in September is 9.4h.UV index
The month with the highest UV index is September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What is the average September temperature in Athi River?
What is the average humidity in September in Athi River?
How much does it rain in Athi River in September?
How many hours of daylight does Athi River have in September?
When are sunrise and sunset in September in Athi River?
How many hours of sunshine does Athi River have in September?
When is the highest UV index in Athi River?
What is the UV index reading in September in Athi River?
Average temperature in September
Athi River, 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
Athi River, 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
Athi River, 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
Athi River, 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
Athi River, 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
Athi River, 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
Athi River, Kenya
- Average daylight in September: 12h and 1min
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 2min
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
Athi River, 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
Athi River, 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).
Average cloud cover in September
Athi River, Kenya
- Average cloud cover in September: 36
The month with the most cloud cover is May (Cloud cover 54).
The month with the least cloud cover is February (Cloud cover 25).
Average visibility in September
Athi River, Kenya
- Average visibility in September: 10km
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are April and May (7km).
Athi River, Kenya
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