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
September
Weather in September
Temperature
The shift into September is accompanied by a modest temperature increase, with the average high-temperature edging up from an agreeable 21.3°C (70.3°F) in August to a moderately hot 25.4°C (77.7°F). Throughout the month of September, Alberton observes a dramatic downturn from the daytime peak temperatures, expecting an average low of 11.6°C (52.9°F).Humidity
With an average relative humidity of 34%, September is the least humid month in Alberton, South Africa.Rainfall
In September, in Alberton, the rain falls for 3.8 days. Throughout September, 9mm (0.35") of precipitation is accumulated. Throughout the year, there are 117 rainfall days, and 425mm (16.73") of precipitation is accumulated.Daylight
In Alberton, the average length of the day in September is 11h and 57min.On the first day of the month, sunrise is at 06:19 and sunset at 17:55. On the last day of September, sunrise is at 05:47 and sunset at 18:07 SAST.
Sunshine
In Alberton, South Africa, the average sunshine in September is 9.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Alberton in September?
What is the least humid month in Alberton?
What is the average humidity in September in Alberton?
How many days does it rain in September in Alberton?
What is the average length of the day in September in Alberton?
When are sunrise and sunset in September in Alberton?
How long on average sun shines in September in Alberton?
What is the UV index reading in September in Alberton?
Average temperature in September
Alberton, South Africa
- Average high temperature in September: 25.4°C
The warmest months (with the highest average high temperature) are January, February and December (27.2°C).
The month with the lowest average high temperature is July (17.6°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is January (16.2°C).
The coldest month (with the lowest average low temperature) is July (6°C).
Average pressure in September
Alberton, South Africa
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is July (1024.7mbar).
The month with the lowest atmospheric pressure is January (1013.3mbar).
Average wind speed in September
Alberton, South Africa
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is November (11.7km/h).
The calmest month (with the lowest average wind speed) is May (8km/h).
Average humidity in September
Alberton, South Africa
- Average humidity in September: 34%
The month with the highest relative humidity is February (65%).
The month with the lowest relative humidity is September (34%).
Average rainfall in September
Alberton, South Africa
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is December (86mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Alberton, South Africa
- Average rainfall days in September: 3.8 days
The month with the highest number of rainy days is January (19.8 days).
The month with the least rainy days is July (1.5 days).
Average daylight in September /
Average sunshine in September
Alberton, 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: 9h and 3min
The month with the most sunshine is October (Average sunshine: 11h and 48min).
The month with the least sunshine is August (Average sunshine: 7h and 24min).
Average sunshine days in September
Alberton, South Africa
- Average sunshine days in September: 24.8 days
The months with the most sunshine days are July and August (28.8 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in September
Alberton, South Africa
- Average UV index in September: 5
The months with the highest UV index are January, October and November (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in September
Alberton, South Africa
- Average cloud cover in September: 9
The month with the most cloud cover is January (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in September
Alberton, South Africa
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
