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's arrival in Grootfontein brings a slight change in high-temperatures, adjusting from a warm 27.1°C (80.8°F) in August to a tropical 31°C (87.8°F). Significant dips from daytime highs mark the September nights in Grootfontein, with a consistent average temperature of 13.8°C (56.8°F).Humidity
The least humid month in Grootfontein is September, with an average relative humidity of 20%.Rainfall
January through May, September through December are months with rainfall in Grootfontein. September is the first month it rains. Throughout September, in the average 1.2 rainfall days, it receives 2mm (0.08") of precipitation. Throughout the year, there are 120.9 rainfall days, and 607mm (23.9") of precipitation is accumulated.Daylight
In Grootfontein, the average length of the day in September is 11h and 59min.On the first day of the month, sunrise is at 06:55 and sunset at 18:39. On the last day of September, sunrise is at 06:29 and sunset at 18:45 CAT.
Sunshine
In Grootfontein, the average sunshine in September is 9.9h.UV index
The average daily maximum UV index in September in Grootfontein is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
How hot is September in Grootfontein?
What is the least humid month in Grootfontein?
What is the average humidity in September in Grootfontein?
When does it start raining in Grootfontein?
How many hours of daylight does Grootfontein have in September?
When are sunrise and sunset in September in Grootfontein?
How long on average sun shines in September in Grootfontein?
How high is the UV index in September in Grootfontein?
Average temperature in September
Grootfontein, Namibia
- Average high temperature in September: 31°C
The warmest month (with the highest average high temperature) is October (32.8°C).
The month with the lowest average high temperature is July (22.6°C).
- Average low temperature in September: 13.8°C
The months with the highest average low temperature are November and December (20.5°C).
The coldest month (with the lowest average low temperature) is July (6.8°C).
Average pressure in September
Grootfontein, Namibia
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is January (1009.7mbar).
Average wind speed in September
Grootfontein, Namibia
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is October (11km/h).
The calmest month (with the lowest average wind speed) is April (8.5km/h).
Average humidity in September
Grootfontein, Namibia
- Average humidity in September: 20%
The month with the highest relative humidity is March (62%).
The month with the lowest relative humidity is September (20%).
Average rainfall in September
Grootfontein, Namibia
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is December (129mm).
The driest months (with the least rainfall) are June, July and August (0mm).
Average rainfall days in September
Grootfontein, Namibia
- Average rainfall days in September: 1.2 days
The month with the highest number of rainy days is December (22.2 days).
The months with the least rainy days are June and July (0 days).
Average daylight in September /
Average sunshine in September
Grootfontein, Namibia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The months with the least sunshine are January and February (Average sunshine: 9h and 12min).
Average sunshine days in September
Grootfontein, Namibia
- Average sunshine days in September: 28.5 days
The month with the most sunshine days is July (31 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in September
Grootfontein, Namibia
- Average UV index in September: 6
The month with the highest UV index is October (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 5).
Average cloud cover in September
Grootfontein, Namibia
- Average cloud cover in September: 5
The months with the most cloud cover are February and March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 1).
Average visibility in September
Grootfontein, Namibia
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Grootfontein, Namibia
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