September weather forecastGilgil, Kenya

September

Weather in September

The first month of the spring, September, is a moderately hot month in Gilgil, Kenya, with an average temperature varying between 10.7°C (51.3°F) and 23°C (73.4°F).

Temperature

In Gilgil, September's average high-temperature stands at a moderately hot 23°C (73.4°F), closely related to the preceding month. September nights bring a significant cooling from the heat of the day, with averages of 10.7°C (51.3°F).

Humidity

In Gilgil, the average relative humidity in September is 71%.

Rainfall

In Gilgil, in September, during 18.9 rainfall days, 51mm (2.01") of precipitation is typically accumulated. In Gilgil, during the entire year, the rain falls for 206.3 days and collects up to 657mm (25.87") of precipitation.

Daylight

The average length of the day in September is 12h and 7min.
On the first day of the month, sunrise is at 06:31 and sunset at 18:37. On the last day of September, in Gilgil, sunrise is at 06:21 and sunset at 18:28 EAT.

Sunshine

The average sunshine in September in Gilgil, Kenya, is 9.6h.

UV index

The months with the highest UV index in Gilgil are January through May, August through December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 during September translates into the following guidance:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in September, in Gilgil, is 23°C (73.4°F) and the average low-temperature is 10.7°C (51.3°F).

In Gilgil, Kenya, the average relative humidity in September is 71%.

In Gilgil, Kenya, in September, it is raining for 18.9 days, with typically 51mm (2.01") of accumulated precipitation.

The average day length in September in Gilgil is 12h and 7min.

On the first day of September in Gilgil, Kenya, sunrise is at 06:31 and sunset at 18:37. On the last day of the month, sunrise is at 06:21 and sunset at 18:28 EAT.

In September, the average sunshine duration in Gilgil, Kenya, is 9.6h.

The months with the highest UV index in Gilgil are January through May, August through December, with an average maximum UV index of 5.

In September, the average daily maximum UV index in Gilgil is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe 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

21.8°C

23°C

23.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.9km/h

7.5km/h

8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

3.2

4.6

6.2

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Gilgil, Kenya

Average high temperature in September: 23°C

The warmest month (with the highest average high temperature) is March (24.8°C).
The month with the lowest average high temperature is July (20.9°C).

Average low temperature in September: 10.7°C

The month with the highest average low temperature is April (12.2°C).
The coldest month (with the lowest average low temperature) is January (9.9°C).

Average pressure in September
Gilgil, Kenya

Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is July (1016.4mbar).
The month with the lowest atmospheric pressure is February (1013.6mbar).

Average wind speed in September
Gilgil, Kenya

Average wind speed in September: 7.1km/h

The windiest month (with the highest average wind speed) is February (8.6km/h).
The calmest month (with the lowest average wind speed) is June (6.5km/h).

Average humidity in September
Gilgil, Kenya

Average humidity in September: 71%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is February (59%).

Average rainfall in September
Gilgil, Kenya

Average rainfall in September: 51mm

The wettest month (with the highest rainfall) is August (94mm).
The driest month (with the least rainfall) is February (18mm).

Average rainfall days in September
Gilgil, Kenya

Average rainfall days in September: 18.9 days

The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is February (5.8 days).

Average daylight in September /
Average sunshine in September
Gilgil, 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 6min).

Average sunshine in September: 9h and 36min

The month with the most sunshine is February (Average sunshine: 9h and 48min).
The month with the least sunshine is July (Average sunshine: 9h and 0min).

Average sunshine days in September
Gilgil, Kenya

Average sunshine days in September: 4.6 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is August (3.2 days).

Average UV index in September
Gilgil, Kenya

Average UV index in September: 5

The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 5).
The months with the lowest UV index are June and July (UV index 4).