September weather forecastSiaya, Kenya
September
Weather in September
September, the first month of the autumn in Siaya, is still a warm month, with an average temperature fluctuating between 26.5°C (79.7°F) and 15.7°C (60.3°F).Temperature
Siaya experiences an average high-temperature of a still moderately hot 26.5°C (79.7°F) in September, marking an insignificant shift from 25.5°C (77.9°F) in August. In Siaya, September nights witness a steady temperature drop to a refreshing 15.7°C (60.3°F).Humidity
In Siaya, the average relative humidity in September is 74%.Rainfall
In Siaya, during September, the rain falls for 25 days and regularly aggregates up to 112mm (4.41") of precipitation. In Siaya, during the entire year, the rain falls for 276.5 days and collects up to 1434mm (56.46") of precipitation.Daylight
In Siaya, the average length of the day in September is 12h and 7min.On the first day of the month, sunrise is at 06:39 and sunset at 18:46. On the last day of September, sunrise is at 06:29 and sunset at 18:36 EAT.
Sunshine
The average sunshine in September in Siaya, Kenya, is 9.5h.UV index
April through November, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Siaya, Kenya
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is February (29.9°C).
The month with the lowest average high temperature is July (24.2°C).
- Average low temperature in September: 15.7°C
The month with the highest average low temperature is February (16.9°C).
The coldest months (with the lowest average low temperature) are June and July (15°C).
Average pressure in September
Siaya, Kenya
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is July (1015.4mbar).
The month with the lowest atmospheric pressure is February (1012mbar).
Average wind speed in September
Siaya, Kenya
- Average wind speed in September: 6.1km/h
The windiest month (with the highest average wind speed) is February (9.1km/h).
The calmest months (with the lowest average wind speed) are May and June (5.7km/h).
Average humidity in September
Siaya, Kenya
- Average humidity in September: 74%
The month with the highest relative humidity is May (85%).
The month with the lowest relative humidity is February (57%).
Average rainfall in September
Siaya, Kenya
- Average rainfall in September: 112mm
The wettest month (with the highest rainfall) is May (242mm).
The driest month (with the least rainfall) is February (38mm).
Average rainfall days in September
Siaya, Kenya
- Average rainfall days in September: 25 days
The month with the highest number of rainy days is May (29.3 days).
The month with the least rainy days is February (10.9 days).
Average daylight in September /
Average sunshine in September
Siaya, Kenya
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 6min).
The months with the shortest days are March and October (Average daylight: 12h and 6min).
- Average sunshine in September: 9h and 30min
The months with the most sunshine are January and February (Average sunshine: 9h and 48min).
The month with the least sunshine is May (Average sunshine: 8h and 42min).
Average sunshine days in September
Siaya, Kenya
- Average sunshine days in September: 2.6 days
The month with the most sunshine days is January (16.2 days).
The month with the least sunshine days is May (1.2 days).
Average UV index in September
Siaya, Kenya
- Average UV index in September: 5
The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August, September, October and November (UV index 5).
Average cloud cover in September
Siaya, Kenya
- Average cloud cover in September: 26
The month with the most cloud cover is May (Cloud cover 43).
The month with the least cloud cover is February (Cloud cover 14).
Average visibility in September
Siaya, Kenya
- Average visibility in September: 9km
The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are May and June (8km).
