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
Grunau in September denotes a subtle temperature transition, adjusting from an average high of a pleasant 22.9°C (73.2°F) in August to a moderately hot 26.5°C (79.7°F). Significant dips from daytime highs mark the September nights in Grunau, with a consistent average temperature of 12.6°C (54.7°F).Humidity
In Grunau, the average relative humidity in September is 31%.Rainfall
The months with the least rainfall are June through September Rain falls for 1.5 days and accumulates 1mm (0.04") of rain.Daylight
The average length of the day in September in Grunau is 11h and 56min.On the first day of the month, sunrise is at 06:59 and sunset at 18:33. On the last day of September, sunrise is at 06:25 and sunset at 18:46 CAT.
Sunshine
In Grunau, the average sunshine in September is 9.9h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What are the temperatures in Grunau in September?
What is the average humidity in September in Grunau?
What is the driest month in Grunau?
How much does it rain in Grunau in September?
What is the average length of the day in September in Grunau?
When is the sunrise / sunset in September in Grunau?
How many hours of sunshine does Grunau have in September?
What is the UV index reading in September in Grunau?
Average temperature in September
Grunau, Namibia
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is January (34.4°C).
The month with the lowest average high temperature is June (20.8°C).
- Average low temperature in September: 12.6°C
The month with the highest average low temperature is February (21.3°C).
The coldest month (with the lowest average low temperature) is July (9.1°C).
Average pressure in September
Grunau, Namibia
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is July (1021.9mbar).
The months with the lowest atmospheric pressure are January and February (1011.2mbar).
Average wind speed in September
Grunau, Namibia
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is December (12.2km/h).
The calmest month (with the lowest average wind speed) is May (9.7km/h).
Average humidity in September
Grunau, Namibia
- Average humidity in September: 31%
The month with the highest relative humidity is June (41%).
The month with the lowest relative humidity is November (29%).
Average rainfall in September
Grunau, Namibia
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is February (14mm).
The driest months (with the least rainfall) are June, July, August and September (1mm).
Average rainfall days in September
Grunau, Namibia
- Average rainfall days in September: 1.5 days
The month with the highest number of rainy days is February (5.7 days).
The month with the least rainy days is November (0.9 days).
Average daylight in September /
Average sunshine in September
Grunau, Namibia
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is December (Average sunshine: 12h and 12min).
The months with the least sunshine are April, May and June (Average sunshine: 9h and 36min).
Average sunshine days in September
Grunau, Namibia
- Average sunshine days in September: 27.7 days
The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is February (20.3 days).
Average UV index in September
Grunau, Namibia
- Average UV index in September: 6
The months with the highest UV index are January, February, March, 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
Grunau, Namibia
- Average cloud cover in September: 7
The months with the most cloud cover are February and April (Cloud cover 9).
The months with the least cloud cover are July, August and December (Cloud cover 5).
Average visibility in September
Grunau, 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).
Grunau, Namibia
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