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
Entering September, Welkom notices a subtle temperature elevation, with the average high-temperature advancing from August's agreeable 21.1°C (70°F) to a moderately hot 25.8°C (78.4°F). September nights show a substantial disparity from the daytime peak with an average low-temperature of 10.8°C (51.4°F).Humidity
September is the least humid month, with an average relative humidity of 30%.Rainfall
In Welkom, during September, the rain falls for 3.1 days and regularly aggregates up to 6mm (0.24") of precipitation. Throughout the year, in Welkom, there are 73.3 rainfall days, and 192mm (7.56") of precipitation is accumulated.Daylight
In September, the average length of the day in Welkom is 11h and 56min.On the first day of the month, sunrise is at 06:26 and sunset at 17:59. On the last day of September, in Welkom, sunrise is at 05:52 and sunset at 18:13 SAST.
Sunshine
In September, the average sunshine in Welkom is 9.8h.UV index
In Welkom, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 5 during September translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Welkom?
What is the least humid month in Welkom?
What is the average humidity in September in Welkom?
How much does it rain in Welkom in September?
What is the average length of the day in September in Welkom?
When are sunrise and sunset in September in Welkom?
How long on average sun shines in September in Welkom?
How high is the UV index in September in Welkom?
Average temperature in September
Welkom, South Africa
- Average high temperature in September: 25.8°C
The warmest month (with the highest average high temperature) is January (30.2°C).
The month with the lowest average high temperature is June (17.3°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is January (18.6°C).
The coldest month (with the lowest average low temperature) is July (5.5°C).
Average pressure in September
Welkom, South Africa
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is July (1025mbar).
The month with the lowest atmospheric pressure is January (1012.4mbar).
Average wind speed in September
Welkom, South Africa
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is November (14.4km/h).
The calmest month (with the lowest average wind speed) is May (9km/h).
Average humidity in September
Welkom, South Africa
- Average humidity in September: 30%
The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is September (30%).
Average rainfall in September
Welkom, South Africa
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is January (33mm).
The driest months (with the least rainfall) are July and August (2mm).
Average rainfall days in September
Welkom, South Africa
- Average rainfall days in September: 3.1 days
The month with the highest number of rainy days is January (11.9 days).
The month with the least rainy days is July (1.4 days).
Average daylight in September /
Average sunshine in September
Welkom, South Africa
- 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 November (Average sunshine: 11h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 24min).
Average sunshine days in September
Welkom, South Africa
- Average sunshine days in September: 26.3 days
The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is February (15.3 days).
Average UV index in September
Welkom, South Africa
- Average UV index in September: 5
The months with the highest UV index are January, February, October, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in September
Welkom, South Africa
- Average cloud cover in September: 10
The months with the most cloud cover are January and February (Cloud cover 19).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in September
Welkom, 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).
Welkom, South Africa
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