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
In September, the meteorological conditions subtly change with the average high-temperature edging from 25.6°C (78.1°F) in August to a still moderately hot 29.2°C (84.6°F). Kumu in September observes a sharp transition from the daytime heat, falling to an average low of 12.6°C (54.7°F).Humidity
The least humid month is September, with an average relative humidity of 20%.Rainfall
Months with rainfall are January through May, September through December. September is the first month it rains. Throughout September, in the average 1.5 rainfall days, it receives 3mm (0.12") of precipitation. In Kumu, during the entire year, the rain falls for 75.2 days and collects up to 233mm (9.17") of precipitation.Daylight
In Kumu, the average length of the day in September is 11h and 58min.On the first day of the month, sunrise is at 06:51 and sunset at 18:30. On the last day of September, sunrise is at 06:21 and sunset at 18:39 CAT.
Sunshine
In September, the average sunshine is 9.7h.UV index
In Kumu, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 6 in September transforms into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the least humid month?
What is the average humidity in September?
When does it start raining?
How many hours of daylight does Kumu have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Kumu have in September?
What is the UV index reading in September in Kumu?
Average temperature in September
Kumu, Namibia
- Average high temperature in September: 29.2°C
The warmest month (with the highest average high temperature) is November (31.3°C).
The month with the lowest average high temperature is July (21.3°C).
- Average low temperature in September: 12.6°C
The month with the highest average low temperature is December (21.2°C).
The coldest month (with the lowest average low temperature) is July (7°C).
Average pressure in September
Kumu, Namibia
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is July (1022.4mbar).
The month with the lowest atmospheric pressure is January (1010.3mbar).
Average wind speed in September
Kumu, Namibia
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is July (14.4km/h).
The calmest month (with the lowest average wind speed) is March (11.2km/h).
Average humidity in September
Kumu, Namibia
- Average humidity in September: 20%
The month with the highest relative humidity is February (49%).
The month with the lowest relative humidity is September (20%).
Average rainfall in September
Kumu, Namibia
- Average rainfall in September: 3mm
The wettest month (with the highest rainfall) is February (60mm).
The driest months (with the least rainfall) are June, July and August (0mm).
Average rainfall days in September
Kumu, Namibia
- Average rainfall days in September: 1.5 days
The month with the highest number of rainy days is February (14.3 days).
The month with the least rainy days is July (0.2 days).
Average daylight in September /
Average sunshine in September
Kumu, Namibia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is November (Average sunshine: 11h and 36min).
The months with the least sunshine are February and October (Average sunshine: 9h and 24min).
Average sunshine days in September
Kumu, Namibia
- Average sunshine days in September: 27.8 days
The month with the most sunshine days is July (30.8 days).
The month with the least sunshine days is February (12.1 days).
Average UV index in September
Kumu, Namibia
- Average UV index in September: 6
The months with the highest UV index are January, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 4).
Average cloud cover in September
Kumu, Namibia
- Average cloud cover in September: 7
The month with the most cloud cover is February (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 2).
Average visibility in September
Kumu, Namibia
- 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).
