KenyaThe weather in September in Siaya
It's warm in September in Siaya with an average temperature of 29°C. Temperatures this month range from a low of 28°C to a high of 30°C. At night, you can expect temperatures between 18°C and 19°C.
Looking for sun? September isn’t a good month to be in Siaya. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Siaya, Kenya. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 37°C in 2023, Siaya reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 21°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 13°C to a highest value of 21°C.
Rainfall amount
In September, there is an average of 170 mm of precipitation, spread over 20 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in September for Siaya
Click on any day in September to get detailed info about the usual weather on that day in Siaya. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Siaya | New York | |
|---|---|---|
| Average temperature | 29°C | 27°C |
| Max. temperature | 30°C | 31°C |
| Min. temperature | 18°C | -5°C |
| Total precipitation | 170 mm | 57 mm |
| Rainy days | 20 days | 9 days |
Start of September
The month of September starts in Siaya with hot temps, averaging around 29°C during the day and nights around 19°C.
Mid September
By mid-September, daytime temps stay steady at around 29°C, with nights around 19°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in Siaya is around 30°C, while nighttime temps are about 19°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Siaya for all months and discover the best travel time
Curious about the weather in other parts of Kenya? Check out the climate and weather for spots like Masai Mara National Reserve, Nairobi, Mombasa, or explore other destinations in Kenya.
Temperature charts
These charts show the average temperatures in September in Siaya, Kenya. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Siaya
Temperature in September in Siaya over the years
Precipitation charts
These charts show the average amount of precipitation in September in Siaya, Kenya. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Siaya
Total precipitation in September in Siaya over the years
Daily UV index in September in Siaya
This chart shows the average daily UV index in September in Siaya, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Siaya
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Average weather in Siaya by month
Click on a month below to see detailed weather info for Siaya. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.