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
September
Weather in September
Temperature
Gatheru's shift from August to September is accompanied by an average high-temperature of a still pleasant 22.8°C (73°F), a slight deviation from 21.4°C (70.5°F). Gatheru records a marked divergence from the day's high temperatures, with nights in September averaging at a fresh 10.2°C (50.4°F).Humidity
The average relative humidity in September is 73%.Rainfall
In Gatheru, Kenya, in September, it is raining for 14.7 days, with typically 30mm (1.18") of accumulated precipitation. In Gatheru, Kenya, during the entire year, the rain falls for 212.1 days and collects up to 663mm (26.1") of precipitation.Daylight
In September, the average length of the day is 12h and 7min.On the first day of the month, sunrise is at 06:28 and sunset at 18:34. On the last day of September, in Gatheru, Kenya, sunrise is at 06:18 and sunset at 18:25 EAT.
Sunshine
The average sunshine in September is 9.3h.UV index
The months with the highest UV index are January through May, September, October and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Gatheru?
What is the average humidity in September in Gatheru?
How many days does it rain in September in Gatheru?
How many hours of daylight does Gatheru have in September?
When is the sunrise / sunset in September in Gatheru?
How many hours of sunshine does Gatheru have in September?
What are the months with the highest UV index in Gatheru?
What is the UV index reading in September in Gatheru?
Average temperature in September
Gatheru, Kenya
- Average high temperature in September: 22.8°C
The warmest months (with the highest average high temperature) are February and March (25.6°C).
The month with the lowest average high temperature is July (20.6°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is April (12°C).
The coldest month (with the lowest average low temperature) is July (9.3°C).
Average pressure in September
Gatheru, Kenya
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is July (1016.4mbar).
The month with the lowest atmospheric pressure is March (1013.5mbar).
Average wind speed in September
Gatheru, Kenya
- Average wind speed in September: 7.5km/h
The windiest months (with the highest average wind speed) are February and October (7.8km/h).
The calmest month (with the lowest average wind speed) is June (6.5km/h).
Average humidity in September
Gatheru, Kenya
- Average humidity in September: 73%
The months with the highest relative humidity are May and June (83%).
The month with the lowest relative humidity is February (65%).
Average rainfall in September
Gatheru, Kenya
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is April (104mm).
The driest month (with the least rainfall) is January (29mm).
Average rainfall days in September
Gatheru, Kenya
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is April (25 days).
The month with the least rainy days is February (10.1 days).
Average daylight in September /
Average sunshine in September
Gatheru, Kenya
- Average daylight in September: 12h and 1min
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 2min
The months with the most sunshine are January and February (Average sunshine: 9h and 30min).
The months with the least sunshine are May and July (Average sunshine: 8h and 30min).
Average sunshine days in September
Gatheru, Kenya
- Average sunshine days in September: 9 days
The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is April (3.3 days).
Average UV index in September
Gatheru, Kenya
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, September, October and December (UV index 5).
The months with the lowest UV index are June, July, August and November (UV index 4).
Average cloud cover in September
Gatheru, Kenya
- Average cloud cover in September: 40
The month with the most cloud cover is May (Cloud cover 57).
The month with the least cloud cover is February (Cloud cover 23).
Average visibility in September
Gatheru, Kenya
- Average visibility in September: 8km
The months with the highest visibility are January and February (9km).
The month with the lowest visibility is May (6km).
