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
The transition into September shows a subtle variation to a still moderately hot 28°C (82.4°F) from August's 27.6°C (81.7°F) in the average high-temperature. During September, Mwandimu experiences a consistent low-temperature average of 22.5°C (72.5°F).Heat index
The heat index for September is estimated at a tropical 32°C (89.6°F). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
January, May, September through December, with an average relative humidity of 77%, are the most humid months.Rainfall
In Mwandimu, during September, the rain falls for 11.2 days and regularly aggregates up to 12mm (0.47") of precipitation. In Mwandimu, during the entire year, the rain falls for 167.2 days and collects up to 312mm (12.28") of precipitation.Daylight
In Mwandimu, the average length of the day in September is 12h and 5min.On the first day of September, sunrise is at 06:22 and sunset at 18:24. On the last day of the month, sunrise is at 06:09 and sunset at 18:18 EAT.
Sunshine
The average sunshine in September in Mwandimu is 8.4h.UV index
The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. 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
Is it hot in Mwandimu during September?
What are the most humid months in Mwandimu?
What is the average humidity in September in Mwandimu?
How many days does it rain in September in Mwandimu?
What is the average length of the day in September in Mwandimu?
When is the sunrise / sunset in September in Mwandimu?
How many hours of sunshine does Mwandimu have in September?
When is the highest UV index in Mwandimu?
What is the UV index reading in September in Mwandimu?
Average temperature in September
Mwandimu, Kenya
- Average high temperature in September: 28°C
The warmest month (with the highest average high temperature) is March (31.6°C).
The month with the lowest average high temperature is July (27.3°C).
- Average low temperature in September: 22.5°C
The months with the highest average low temperature are March and April (25.3°C).
The coldest month (with the lowest average low temperature) is August (22°C).
Average pressure in September
Mwandimu, Kenya
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is July (1016.1mbar).
The month with the lowest atmospheric pressure is February (1010.5mbar).
Average wind speed in September
Mwandimu, Kenya
- Average wind speed in September: 18.6km/h
The windiest month (with the highest average wind speed) is July (23.2km/h).
The calmest month (with the lowest average wind speed) is March (11.9km/h).
Average humidity in September
Mwandimu, Kenya
- Average humidity in September: 77%
The months with the highest relative humidity are January, May, September, October, November and December (77%).
The month with the lowest relative humidity is July (74%).
Average rainfall in September
Mwandimu, Kenya
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is May (48mm).
The driest month (with the least rainfall) is June (10mm).
Average rainfall days in September
Mwandimu, Kenya
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is December (21.2 days).
The month with the least rainy days is February (8.8 days).
Average daylight in September /
Average sunshine in September
Mwandimu, Kenya
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is November (Average sunshine: 10h and 30min).
The month with the least sunshine is May (Average sunshine: 7h and 54min).
Average sunshine days in September
Mwandimu, Kenya
- Average sunshine days in September: 8.8 days
The month with the most sunshine days is February (15.3 days).
The month with the least sunshine days is December (7 days).
Average UV index in September
Mwandimu, Kenya
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in September
Mwandimu, Kenya
- Average cloud cover in September: 42
The month with the most cloud cover is October (Cloud cover 45).
The month with the least cloud cover is December (Cloud cover 30).
Average visibility in September
Mwandimu, Kenya
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
