September weather forecastGatheru, Kenya

September

Weather in September

The first month of the spring, September, is also an agreeable month in Gatheru, Kenya, with an average temperature ranging between min 10.2°C (50.4°F) and max 22.8°C (73°F).

Temperature

Gatheru's shift from August to September is accompanied by an average high-temperature of a still pleasant 22.8°C (73°F), a slight deviation from 21.4°C (70.5°F). Gatheru records a marked divergence from the day's high temperatures, with nights in September averaging at a fresh 10.2°C (50.4°F).

Humidity

The average relative humidity in September is 73%.

Rainfall

In Gatheru, Kenya, in September, it is raining for 14.7 days, with typically 30mm (1.18") of accumulated precipitation. In Gatheru, Kenya, during the entire year, the rain falls for 212.1 days and collects up to 663mm (26.1") of precipitation.

Daylight

In September, the average length of the day is 12h and 7min.
On the first day of the month, sunrise is at 06:28 and sunset at 18:34. On the last day of September, in Gatheru, Kenya, sunrise is at 06:18 and sunset at 18:25 EAT.

Sunshine

The average sunshine in September is 9.3h.

UV index

The months with the highest UV index are January through May, September, October and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.

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

Frequently asked questions

The high-temperature, in September, in Gatheru, is 22.8°C (73°F), while the low-temperature averages to 10.2°C (50.4°F).

In September, the average relative humidity is 73%.

In September, in Gatheru, Kenya, the rain falls for 14.7 days. Throughout September, 30mm (1.18") of precipitation is accumulated.

In Gatheru, the average day length in September is 12h and 7min.

In September, on the first day of the month, sunrise is at 06:28 and sunset at 18:34. On the last day of the month, in Gatheru, sunrise is at 06:18 and sunset at 18:25 EAT.

The average sunshine duration in September in Gatheru, Kenya, is 9.3h.

The months with the highest UV index in Gatheru are January through May, September, October and December, with an average maximum UV index of 5.

In Gatheru, Kenya, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

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

Aug

September

Oct

Average high temperature

21.4°C

22.8°C

23.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.1km/h

8km/h

8.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

8.8

6.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Gatheru, Kenya

Average high temperature in September: 22.8°C

The warmest months (with the highest average high temperature) are February and March (25.6°C).
The month with the lowest average high temperature is July (20.6°C).

Average low temperature in September: 10.2°C

The month with the highest average low temperature is April (12°C).
The coldest month (with the lowest average low temperature) is July (9.3°C).

Average pressure in September
Gatheru, Kenya

Average pressure in September: 1015.4mbar

The month with the highest atmospheric pressure is July (1016.4mbar).
The month with the lowest atmospheric pressure is March (1013.5mbar).

Average wind speed in September
Gatheru, Kenya

Average wind speed in September: 7.5km/h

The windiest months (with the highest average wind speed) are February and October (7.8km/h).
The calmest month (with the lowest average wind speed) is June (6.5km/h).

Average humidity in September
Gatheru, Kenya

Average humidity in September: 73%

The months with the highest relative humidity are May and June (83%).
The month with the lowest relative humidity is February (65%).

Average rainfall in September
Gatheru, Kenya

Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is April (104mm).
The driest month (with the least rainfall) is January (29mm).

Average rainfall days in September
Gatheru, Kenya

Average rainfall days in September: 14.7 days

The month with the highest number of rainy days is April (25 days).
The month with the least rainy days is February (10.1 days).

Average daylight in September /
Average sunshine in September
Gatheru, 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 18min

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

Average sunshine days in September
Gatheru, Kenya

Average sunshine days in September: 9 days

The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is April (3.3 days).

Average UV index in September
Gatheru, Kenya

Average UV index in September: 5

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