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
September brings a slight elevation in the average high-temperature, transitioning from August's 30°C (86°F) to a still hot 34.6°C (94.3°F). Cwa logs a substantial downturn to a mild 15.9°C (60.6°F) during September nights, a considerable shift from daytime highs.Humidity
With an average relative humidity of 21%, September is the least humid month in Cwa.Rainfall
January through June, September through December are months with rainfall. September is the first month it rains. Throughout September, in the average 0.4 rainfall days, it receives 1mm (0.04") of precipitation. In Cwa, during the entire year, the rain falls for 110.8 days and collects up to 429mm (16.89") of precipitation.Daylight
In September, the average length of the day is 12h and 0min.On the first day of September, sunrise is at 06:42 and sunset at 18:29. On the last day of the month, sunrise is at 06:18 and sunset at 18:33 CAT.
Sunshine
In Cwa, the average sunshine in September is 10h.UV index
September and October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. 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
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 Cwa have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Cwa have in September?
What are the months with the highest UV index in Cwa?
How high is the UV index in September?
Average temperature in September
Cwa, Namibia
- Average high temperature in September: 34.6°C
The warmest month (with the highest average high temperature) is October (36.7°C).
The months with the lowest average high temperature are June and July (25.5°C).
- Average low temperature in September: 15.9°C
The month with the highest average low temperature is November (22.2°C).
The coldest month (with the lowest average low temperature) is July (9.9°C).
Average pressure in September
Cwa, Namibia
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is January (1009mbar).
Average wind speed in September
Cwa, Namibia
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is September (10.5km/h).
The calmest months (with the lowest average wind speed) are January, March and December (8km/h).
Average humidity in September
Cwa, Namibia
- Average humidity in September: 21%
The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is September (21%).
Average rainfall in September
Cwa, Namibia
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is January (113mm).
The driest months (with the least rainfall) are July and August (0mm).
Average rainfall days in September
Cwa, Namibia
- Average rainfall days in September: 0.4 days
The months with the highest number of rainy days are January and December (22.1 days).
The month with the least rainy days is August (0 days).
Average daylight in September /
Average sunshine in September
Cwa, Namibia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is November (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 8h and 48min).
Average sunshine days in September
Cwa, Namibia
- Average sunshine days in September: 28.9 days
The month with the most sunshine days is August (31 days).
The month with the least sunshine days is December (7 days).
Average UV index in September
Cwa, Namibia
- Average UV index in September: 7
The months with the highest UV index are September and October (UV index 7).
The months with the lowest UV index are May, June and July (UV index 5).
Average cloud cover in September
Cwa, Namibia
- Average cloud cover in September: 2
The month with the most cloud cover is January (Cloud cover 34).
The months with the least cloud cover are August and September (Cloud cover 2).
Average visibility in September
Cwa, Namibia
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February and March (9km).
Cwa, Namibia
Weather forecast for your location
2. Allow the app to use your location