September weather forecastTwaandu, Kenya

September

Weather in September

The first month of the spring, September, is also a moderately hot month in Twaandu, Kenya, with temperature in the range of an average high of 29°C (84.2°F) and an average low of 16.8°C (62.2°F).

Temperature

Twaandu notes an average high-temperature of a still moderately hot 29°C (84.2°F) in September, displaying minor variation from August. Compared to daytime temperatures, Twaandu's temperature drops significantly, averaging an enjoyable 16.8°C (62.2°F) during the nights of September.

Heat index

The heat index value for September is estimated at a tropical 31°C (87.8°F). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

September is the least humid month, with an average relative humidity of 59%.

Rainfall

In September, in Twaandu, the rain falls for 3.9 days. Throughout September, 3mm (0.12") of precipitation is accumulated. Throughout the year, there are 177.5 rainfall days, and 606mm (23.86") of precipitation is accumulated.

Daylight

In September, the average length of the day in Twaandu is 12h and 6min.
On the first day of the month, sunrise is at 06:26 and sunset at 18:30. On the last day of September, in Twaandu, sunrise is at 06:14 and sunset at 18:22 EAT.

Sunshine

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

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index. January through December, with an average maximum UV index of 6, are months with the lowest UV index in Twaandu. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 6 in September translates into the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

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

Frequently asked questions

The average high-temperature, in September, in Twaandu, is 29°C (84.2°F), while the average low-temperature is 16.8°C (62.2°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in September is estimated at 31°C (87.8°F).

The least humid month in Twaandu is September, with an average relative humidity of 59%.

In Twaandu, Kenya, the average relative humidity in September is 59%.

In September, in Twaandu, the rain falls for 3.9 days. Throughout September, 3mm (0.12") of precipitation is accumulated.

In Twaandu, the average day length in September is 12h and 6min.

In September, on the first day of the month, sunrise is at 06:26 and sunset at 18:30. On the last day of the month, in Twaandu, Kenya, sunrise is at 06:14 and sunset at 18:22 EAT.

The average sunshine duration in September in Twaandu, Kenya, is 9.6h.

The months with the highest UV index in Twaandu are January through December, with an average maximum UV index of 6.

The months with the lowest UV index in Twaandu are January through December, with an average maximum UV index of 6.

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health 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

28.1°C

29°C

29.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13km/h

12.9km/h

12.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

26.3

23.6

14.4

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Twaandu, Kenya

Average high temperature in September: 29°C

The warmest month (with the highest average high temperature) is October (29.6°C).
The month with the lowest average high temperature is December (26.6°C).

Average low temperature in September: 16.8°C

The month with the highest average low temperature is March (18.9°C).
The coldest month (with the lowest average low temperature) is July (15.6°C).

Average pressure in September
Twaandu, Kenya

Average pressure in September: 1015.4mbar

The month with the highest atmospheric pressure is July (1016.5mbar).
The month with the lowest atmospheric pressure is February (1012mbar).

Average wind speed in September
Twaandu, Kenya

Average wind speed in September: 12km/h

The windiest month (with the highest average wind speed) is September (12km/h).
The calmest month (with the lowest average wind speed) is December (6.5km/h).

Average humidity in September
Twaandu, Kenya

Average humidity in September: 59%

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is September (59%).

Average rainfall in September
Twaandu, Kenya

Average rainfall in September: 3mm

The wettest month (with the highest rainfall) is November (121mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in September
Twaandu, Kenya

Average rainfall days in September: 3.9 days

The month with the highest number of rainy days is December (26.6 days).
The month with the least rainy days is July (2.4 days).

Average daylight in September /
Average sunshine in September
Twaandu, 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 0min).

Average sunshine in September: 9h and 36min

The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 8h and 30min).

Average sunshine days in September
Twaandu, Kenya

Average sunshine days in September: 23.6 days

The month with the most sunshine days is July (28.1 days).
The month with the least sunshine days is April (3 days).

Average UV index in September
Twaandu, Kenya

Average UV index in September: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).

Average cloud cover in September
Twaandu, Kenya

Average cloud cover in September: 30

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in September
Twaandu, Kenya

Average visibility in September: 10km

The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, April, November and December (8km).