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
September's onset witnesses a minor shift in the average high-temperature, moving from a moderately hot 23.7°C (74.7°F) in August to a still warm 27.5°C (81.5°F). Kosis observes a distinct decrease from peak daytime temperatures, with an average low-temperature of 14.3°C (57.7°F) throughout the month of September.Humidity
In Kosis, Namibia, the average relative humidity in September is 23%.Rainfall
In September, the rain falls for 2.2 days. Throughout September, 2mm (0.08") of precipitation is accumulated. In Kosis, Namibia, during the entire year, the rain falls for 37.2 days and collects up to 83mm (3.27") of precipitation.Daylight
The average length of the day in September is 11h and 56min.On the first day of September, sunrise is at 07:03 and sunset at 18:38. On the last day of the month, sunrise is at 06:30 and sunset at 18:50 CAT.
Sunshine
In Kosis, the average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Kosis in September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Kosis have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Kosis have in September?
How high is the UV index in September?
Average temperature in September
Kosis, Namibia
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is January (34.8°C).
The month with the lowest average high temperature is June (20.9°C).
- Average low temperature in September: 14.3°C
The month with the highest average low temperature is February (23.4°C).
The coldest month (with the lowest average low temperature) is July (9°C).
Average pressure in September
Kosis, Namibia
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is July (1022.2mbar).
The month with the lowest atmospheric pressure is January (1010.1mbar).
Average wind speed in September
Kosis, Namibia
- Average wind speed in September: 13.7km/h
The windiest months (with the highest average wind speed) are November and December (14.8km/h).
The calmest month (with the lowest average wind speed) is March (11.9km/h).
Average humidity in September
Kosis, Namibia
- Average humidity in September: 23%
The month with the highest relative humidity is June (35%).
The month with the lowest relative humidity is November (20%).
Average rainfall in September
Kosis, Namibia
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is February (27mm).
The driest months (with the least rainfall) are June and August (1mm).
Average rainfall days in September
Kosis, Namibia
- Average rainfall days in September: 2.2 days
The month with the highest number of rainy days is February (7.7 days).
The month with the least rainy days is August (0.7 days).
Average daylight in September /
Average sunshine in September
Kosis, Namibia
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in September: 9h and 5min
The months with the most sunshine are November and December (Average sunshine: 12h and 6min).
The months with the least sunshine are February, April, May and June (Average sunshine: 9h and 36min).
Average sunshine days in September
Kosis, Namibia
- Average sunshine days in September: 27 days
The months with the most sunshine days are July and August (29.9 days).
The month with the least sunshine days is February (19.3 days).
Average UV index in September
Kosis, Namibia
- Average UV index in September: 6
The months with the highest UV index are January, February, November and December (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 5).
Average cloud cover in September
Kosis, Namibia
- Average cloud cover in September: 7
The month with the most cloud cover is February (Cloud cover 14).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in September
Kosis, 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).
