Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Welcoming September, Nanyuki notes an average high-temperature of a pleasant 21°C (69.8°F), nearly consistent with August's 19.5°C (67.1°F). The nighttime temperature, during September, averages of 11.3°C (52.3°F).Humidity
In September, the average relative humidity in Nanyuki is 74%.Rainfall
In Nanyuki, during September, the rain falls for 21.9 days and regularly aggregates up to 51mm (2.01") of precipitation. Throughout the year, there are 281.1 rainfall days, and 1251mm (49.25") of precipitation is accumulated.Daylight
With an average of 12h and 6min of daylight, September has the shortest days of the year.On the first day of September, sunrise is at 06:28 and sunset at 18:35. On the last day of the month, sunrise is at 06:18 and sunset at 18:24 EAT.
Sunshine
September has the most sunshine of the year in Nanyuki, with an average of 9.5h of sunshine.UV index
The months with the highest UV index are February, March, May, August and September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, an average UV index of 5 transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Nanyuki in September?
What is the average humidity in September in Nanyuki?
How many days does it rain in September in Nanyuki?
What is the month with the shortest days in Nanyuki?
How many hours of daylight does Nanyuki have in September?
What time are sunrise and sunset in September in Nanyuki?
What month has the most sunshine in Nanyuki?
How long on average sun shines in September in Nanyuki?
What are the months with the highest UV index in Nanyuki?
What is the UV index intensity in September in Nanyuki?
Average temperature in September
Nanyuki, Kenya
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is March (22.8°C).
The month with the lowest average high temperature is July (19°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is April (11.8°C).
The coldest month (with the lowest average low temperature) is January (8.8°C).
Average pressure in September
Nanyuki, Kenya
- Average pressure in September: 1014.9mbar
The month with the highest atmospheric pressure is July (1015.9mbar).
The month with the lowest atmospheric pressure is March (1012.9mbar).
Average wind speed in September
Nanyuki, Kenya
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is September (7.4km/h).
The calmest month (with the lowest average wind speed) is November (5.6km/h).
Average humidity in September
Nanyuki, Kenya
- Average humidity in September: 74%
The month with the highest relative humidity is May (86%).
The month with the lowest relative humidity is February (72%).
Average rainfall in September
Nanyuki, Kenya
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is April (189mm).
The driest month (with the least rainfall) is January (44mm).
Average rainfall days in September
Nanyuki, Kenya
- Average rainfall days in September: 21.9 days
The month with the highest number of rainy days is May (27.8 days).
The month with the least rainy days is February (17.1 days).
Average daylight in September /
Average sunshine in September
Nanyuki, Kenya
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 6min).
The month with the shortest days is September (Average daylight: 12h and 6min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is September (Average sunshine: 9h and 30min).
The months with the least sunshine are April and November (Average sunshine: 8h and 24min).
Average sunshine days in September
Nanyuki, Kenya
- Average sunshine days in September: 3.9 days
The month with the most sunshine days is January (11.2 days).
The month with the least sunshine days is May (1.6 days).
Average UV index in September
Nanyuki, Kenya
- Average UV index in September: 5
The months with the highest UV index are February, March, May, August and September (UV index 5).
The months with the lowest UV index are January, April, June, July, October, November and December (UV index 4).
Average cloud cover in September
Nanyuki, Kenya
- Average cloud cover in September: 33
The months with the most cloud cover are April, May and November (Cloud cover 49).
The month with the least cloud cover is February (Cloud cover 25).
Average visibility in September
Nanyuki, Kenya
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, July, August, September and October (9km).
The months with the lowest visibility are April, May, June, November and December (8km).
Nanyuki, Kenya
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