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
With the start of September, Gelvandale measures an average high-temperature of a pleasant 20.3°C (68.5°F), not significantly differing from August's 19.8°C (67.6°F). Gelvandale's temperature tends to fall to an average low of 14.1°C (57.4°F) during the nights of September.Humidity
In September, the average relative humidity in Gelvandale is 71%.Rainfall
In September, the rain falls for 9.4 days. Throughout September, 22mm (0.87") of precipitation is accumulated. Throughout the year, in Gelvandale, there are 138.6 rainfall days, and 314mm (12.36") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 53min.On the first day of September in Gelvandale, South Africa, sunrise is at 06:35 and sunset at 18:00. On the last day of the month, sunrise is at 05:55 and sunset at 18:20 SAST.
Sunshine
The average sunshine in September is 8.5h.UV index
The months with the lowest UV index in Gelvandale are March through November, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Be vigilant - Suggestions to stave off sun damage are provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What is the usual temperature for Gelvandale in September?
What is the average humidity in September in Gelvandale?
How much does it rain in Gelvandale in September?
What is the average length of the day in September in Gelvandale?
When are sunrise and sunset in September in Gelvandale?
How long on average sun shines in September in Gelvandale?
When is the lowest UV index in Gelvandale?
What is the UV index intensity in September in Gelvandale?
Average temperature in September
Gelvandale, South Africa
- Average high temperature in September: 20.3°C
The warmest month (with the highest average high temperature) is February (25.3°C).
The month with the lowest average high temperature is July (19.7°C).
- Average low temperature in September: 14.1°C
The month with the highest average low temperature is February (19.5°C).
The coldest months (with the lowest average low temperature) are July and August (13.3°C).
Average pressure in September
Gelvandale, South Africa
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is July (1021.9mbar).
The month with the lowest atmospheric pressure is January (1013.5mbar).
Average wind speed in September
Gelvandale, South Africa
- Average wind speed in September: 19.9km/h
The windiest month (with the highest average wind speed) is October (20.3km/h).
The calmest month (with the lowest average wind speed) is May (16.4km/h).
Average humidity in September
Gelvandale, South Africa
- Average humidity in September: 71%
The months with the highest relative humidity are January, February and December (76%).
The month with the lowest relative humidity is June (62%).
Average rainfall in September
Gelvandale, South Africa
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is March (33mm).
The driest month (with the least rainfall) is May (21mm).
Average rainfall days in September
Gelvandale, South Africa
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is December (15.8 days).
The month with the least rainy days is June (7.8 days).
Average daylight in September /
Average sunshine in September
Gelvandale, South Africa
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is August (Average sunshine: 6h and 30min).
Average sunshine days in September
Gelvandale, South Africa
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is May (21.3 days).
The month with the least sunshine days is February (10 days).
Average UV index in September
Gelvandale, South Africa
- Average UV index in September: 5
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are March, April, May, June, July, August, September, October and November (UV index 5).
Average cloud cover in September
Gelvandale, South Africa
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is June (Cloud cover 22).
Average visibility in September
Gelvandale, South Africa
- 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).
Gelvandale, South Africa
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