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 snowfall in September
- Average snowfall 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
September
Weather in September
Temperature
September signals a minor shift in the average high-temperature, moving from August's refreshing 17.3°C (63.1°F) to an agreeable 21.8°C (71.2°F). During September, Sterkstroom reports a marked contrast from daily peak temperatures, with an average nighttime reading of 8.3°C (46.9°F).Humidity
With an average relative humidity of 35%, September is the least humid month.Rainfall
In Sterkstroom, in September, during 5.6 rainfall days, 11mm (0.43") of precipitation is typically accumulated. Throughout the year, in Sterkstroom, there are 86.2 rainfall days, and 287mm (11.3") of precipitation is accumulated.Snowfall
In Sterkstroom, snow does not fall in January through May, August through December.Daylight
In September, the average length of the day is 11h and 55min.On the first day of September, sunrise is at 06:29 and sunset at 17:57. On the last day of the month, sunrise is at 05:52 and sunset at 18:15 SAST.
Sunshine
The average sunshine in September is 9.6h.UV index
In Sterkstroom, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Sterkstroom?
What is the least humid month in Sterkstroom?
What is the average humidity in September in Sterkstroom?
How many days does it rain in September in Sterkstroom?
When it does not snow in Sterkstroom?
How many hours of daylight does Sterkstroom have in September?
What time are sunrise and sunset in September in Sterkstroom?
How long on average sun shines in September in Sterkstroom?
What is the UV index reading in September in Sterkstroom?
Average temperature in September
Sterkstroom, South Africa
- Average high temperature in September: 21.8°C
The warmest month (with the highest average high temperature) is January (28.8°C).
The month with the lowest average high temperature is June (14.2°C).
- Average low temperature in September: 8.3°C
The month with the highest average low temperature is January (16.3°C).
The coldest month (with the lowest average low temperature) is July (2.8°C).
Average pressure in September
Sterkstroom, South Africa
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is July (1024.8mbar).
The months with the lowest atmospheric pressure are January and December (1012.9mbar).
Average wind speed in September
Sterkstroom, South Africa
- Average wind speed in September: 14.6km/h
The windiest month (with the highest average wind speed) is November (15.8km/h).
The calmest month (with the lowest average wind speed) is May (10.3km/h).
Average humidity in September
Sterkstroom, South Africa
- Average humidity in September: 35%
The month with the highest relative humidity is June (55%).
The month with the lowest relative humidity is September (35%).
Average rainfall in September
Sterkstroom, South Africa
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is August (7mm).
Average rainfall days in September
Sterkstroom, South Africa
- Average rainfall days in September: 5.6 days
The month with the highest number of rainy days is December (10 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in September
Sterkstroom, South Africa
- Average snowfall in September: 0mm
The month with the highest snowfall is June (3mm).
The months with the least snowfall are January, February, March, April, May, August, September, October, November and December (0mm).
Average snowfall days in September
Sterkstroom, South Africa
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is June (0.6 days).
The months with the least snowfall days are January, February, March, April, May, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Sterkstroom, South Africa
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 4min
The months with the most sunshine are January, October, November and December (Average sunshine: 11h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 18min).
Average sunshine days in September
Sterkstroom, South Africa
- Average sunshine days in September: 23.3 days
The month with the most sunshine days is July (25.9 days).
The month with the least sunshine days is February (17.2 days).
Average UV index in September
Sterkstroom, South Africa
- Average UV index in September: 4
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 3).
Average cloud cover in September
Sterkstroom, South Africa
- Average cloud cover in September: 12
The month with the most cloud cover is April (Cloud cover 17).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Sterkstroom, 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).
