September weather forecastGatwamba, Kenya

September

Weather in September

September, the first month of the spring in Gatwamba, is also a moderately hot month, with an average temperature varying between 13.9°C (57°F) and 25.5°C (77.9°F).

Temperature

The high-temperature average in September for Gatwamba, Kenya, is a still moderately hot 25.5°C (77.9°F), staying closely aligned with August's conditions. Gatwamba's average low-temperature for the month of September records at a refreshing 13.9°C (57°F).

Humidity

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

Rainfall

In September, the rain falls for 16.3 days. Throughout September, 35mm (1.38") of precipitation is accumulated. In Gatwamba, during the entire year, the rain falls for 213.5 days and collects up to 642mm (25.28") of precipitation.

Daylight

In September, the average length of the day is 12h and 7min.
On the first day of September in Gatwamba, 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

The average sunshine in September is 9.3h.

UV index

With an average maximum UV index of 6, September is the month with the highest UV index in Gatwamba. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

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

Frequently asked questions

The high-temperature, in September, in Gatwamba, is 25.5°C (77.9°F), while the low-temperature averages to 13.9°C (57°F). In March, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is evaluated at 29°C (84.2°F).

The average relative humidity in September is 67%.

In Gatwamba, Kenya, in September, it is raining for 16.3 days, with typically 35mm (1.38") of accumulated precipitation.

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

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.

In Gatwamba, the average sunshine duration in September is 9.3h.

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

The average daily maximum UV index in September in Gatwamba, Kenya, is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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

23.8°C

25.5°C

25.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.4km/h

7.8km/h

9.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

8.9

9.9

7.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Gatwamba, Kenya

Average high temperature in September: 25.5°C

The warmest months (with the highest average high temperature) are February and March (27.3°C).
The months with the lowest average high temperature are June and July (23.3°C).

Average low temperature in September: 13.9°C

The month with the highest average low temperature is April (14.9°C).
The coldest month (with the lowest average low temperature) is July (12.6°C).

Average pressure in September
Gatwamba, Kenya

Average pressure in September: 1015.6mbar

The month with the highest atmospheric pressure is July (1016.6mbar).
The months with the lowest atmospheric pressure are February and March (1013.4mbar).

Average wind speed in September
Gatwamba, Kenya

Average wind speed in September: 7.3km/h

The windiest month (with the highest average wind speed) is February (10.5km/h).
The calmest month (with the lowest average wind speed) is June (5.4km/h).

Average humidity in September
Gatwamba, 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
Gatwamba, Kenya

Average rainfall in September: 35mm

The wettest month (with the highest rainfall) is April (117mm).
The driest month (with the least rainfall) is January (20mm).

Average rainfall days in September
Gatwamba, Kenya

Average rainfall days in September: 16.3 days

The month with the highest number of rainy days is May (25.3 days).
The month with the least rainy days is January (8.5 days).

Average daylight in September /
Average sunshine in September
Gatwamba, 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 42min).
The month with the least sunshine is May (Average sunshine: 8h and 42min).

Average sunshine days in September
Gatwamba, Kenya

Average sunshine days in September: 9.9 days

The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is April (3.3 days).

Average UV index in September
Gatwamba, 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).