September weather forecastGathanga, Kenya

September

Weather in September

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

Temperature

The start of September marks an average high-temperature of a still warm 24.6°C (76.3°F), hardly distinguishable from the conditions in August. September's average low-temperature reading settles at a mild 14.2°C (57.6°F).

Humidity

In September, the average relative humidity in Gathanga is 67%.

Rainfall

In Gathanga, during September, the rain falls for 16.5 days and regularly aggregates up to 31mm (1.22") of precipitation. Throughout the year, there are 241.5 rainfall days, and 676mm (26.61") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 7min.
On the first day of the month, sunrise is at 06:29 and sunset at 18:35. On the last day of September, sunrise is at 06:19 and sunset at 18:26 EAT.

Sunshine

In September, the average sunshine is 9.4h.

UV index

With an average maximum UV index of 6, September is the month with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.

Updated: Aug 1, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Gathanga, is 24.6°C (76.3°F), while the low-temperature averages to 14.2°C (57.6°F). In February, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 28°C (82.4°F).

In September, the average relative humidity is 67%.

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

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

On the first day of September, sunrise is at 06:29 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.

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

In Gathanga, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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

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
Gathanga, 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
Gathanga, 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
Gathanga, 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
Gathanga, 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
Gathanga, 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
Gathanga, 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
Gathanga, 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 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
Gathanga, 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
Gathanga, 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).