September weather forecastNderu, Kenya

September

Weather in September

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

Temperature

At the start of September, Nderu's average high-temperature reaches a still moderately hot 24.6°C (76.3°F), subtly different from the preceding month. Nderu's nights in September cool down to an average low-temperature of 14.2°C (57.6°F).

Humidity

The average relative humidity in September is 67%.

Rainfall

In September, in Nderu, the rain falls for 16.5 days. Throughout September, 31mm (1.22") of precipitation is accumulated. Throughout the year, in Nderu, there are 241.5 rainfall days, and 676mm (26.61") of precipitation is accumulated.

Daylight

In Nderu, the average length of the day in September is 12h and 7min.
On the first day of the month, sunrise is at 06:30 and sunset at 18:36. On the last day of September, sunrise is at 06:19 and sunset at 18:27 EAT.

Sunshine

In September, the average sunshine 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 of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

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

Frequently asked questions

In September, the average high-temperature and low-temperature in Nderu are 24.6°C (76.3°F) and 14.2°C (57.6°F) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in February is estimated at 28°C (82.4°F).

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

In Nderu, Kenya, during September, the rain falls for 16.5 days and regularly aggregates up to 31mm (1.22") of precipitation.

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

On the first day of September in Nderu, sunrise is at 06:30 and sunset at 18:36. On the last day of the month, sunrise is at 06:19 and sunset at 18:27 EAT.

In Nderu, Kenya, the average sunshine duration in September is 9.4h.

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

The average daily maximum UV index in September in Nderu, Kenya, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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°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
Nderu, 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
Nderu, 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
Nderu, 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
Nderu, 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
Nderu, 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
Nderu, 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
Nderu, 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
Nderu, 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
Nderu, 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).