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
As September sets, the average high-temperature shows a slight increase, moving up from a pleasant 21°C (69.8°F) in August to a moderately hot 25°C (77°F). Following the sharp contrast to daytime warmth, an average nighttime temperature of 11.1°C (52°F) gets registered in Ermelo during September.Humidity
With an average relative humidity of 36%, September is the least humid month.Rainfall
In Ermelo, South Africa, in September, it is raining for 2.6 days, with typically 9mm (0.35") of accumulated precipitation. Throughout the year, in Ermelo, there are 118.9 rainfall days, and 476mm (18.74") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 56min.On the first day of the month, sunrise is at 06:12 and sunset at 17:47. On the last day of September, sunrise is at 05:39 and sunset at 17:59 SAST.
Sunshine
The average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Ermelo, South Africa, is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What are the temperatures in Ermelo in September?
What is the least humid month in Ermelo?
What is the average humidity in September in Ermelo?
How many days does it rain in September in Ermelo?
How many hours of daylight does Ermelo have in September?
When is the sunrise / sunset in September in Ermelo?
How long on average sun shines in September in Ermelo?
How high is the UV index in September in Ermelo?
Average temperature in September
Ermelo, South Africa
- Average high temperature in September: 25°C
The warmest month (with the highest average high temperature) is February (26.5°C).
The month with the lowest average high temperature is June (17.4°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is December (14.5°C).
The coldest month (with the lowest average low temperature) is July (4.5°C).
Average pressure in September
Ermelo, South Africa
- Average pressure in September: 1019mbar
The month with the highest atmospheric pressure is July (1024.9mbar).
The month with the lowest atmospheric pressure is January (1014.2mbar).
Average wind speed in September
Ermelo, South Africa
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is September (12.5km/h).
The calmest month (with the lowest average wind speed) is March (8.9km/h).
Average humidity in September
Ermelo, South Africa
- Average humidity in September: 36%
The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is September (36%).
Average rainfall in September
Ermelo, South Africa
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is December (109mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in September
Ermelo, South Africa
- Average rainfall days in September: 2.6 days
The month with the highest number of rainy days is January (21.4 days).
The month with the least rainy days is July (0.6 days).
Average daylight in September /
Average sunshine in September
Ermelo, South Africa
- 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: 8h and 5min
The month with the most sunshine is October (Average sunshine: 11h and 30min).
The month with the least sunshine is April (Average sunshine: 7h and 18min).
Average sunshine days in September
Ermelo, South Africa
- Average sunshine days in September: 26.7 days
The month with the most sunshine days is July (30.3 days).
The month with the least sunshine days is January (7.4 days).
Average UV index in September
Ermelo, South Africa
- Average UV index in September: 5
The month with the highest UV index is November (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in September
Ermelo, South Africa
- Average cloud cover in September: 11
The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in September
Ermelo, South Africa
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The month with the lowest visibility is January (8km).
Ermelo, South Africa
Weather forecast for your location
2. Allow the app to use your location
