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 commencement of September brings an average high-temperature of a still enjoyable 18.3°C (64.9°F), marking an inconsequential divergence from August. During the September nights, an average temperature of 12.9°C (55.2°F) is observed.Humidity
In Louterwater, the average relative humidity in September is 71%.Rainfall
In Louterwater, in September, it is raining for 10.7 days, with typically 27mm (1.06") of accumulated precipitation. In Louterwater, during the entire year, the rain falls for 127.9 days and collects up to 318mm (12.52") of precipitation.Daylight
In September, the average length of the day is 11h and 53min.On the first day of September, sunrise is at 06:42 and sunset at 18:07. On the last day of the month, sunrise is at 06:02 and sunset at 18:27 SAST.
Sunshine
In September, the average sunshine is 8.4h.UV index
The month with the lowest UV index is September, with an average maximum UV index of 4. 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: During September, 4 as the daily maximum UV index converts into the following advice:
Exercise prevention - Warding off sunburn is urged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Louterwater have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Louterwater, South Africa
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is February (23.9°C).
The month with the lowest average high temperature is July (18°C).
- Average low temperature in September: 12.9°C
The month with the highest average low temperature is January (18.6°C).
The coldest month (with the lowest average low temperature) is August (12.3°C).
Average pressure in September
Louterwater, South Africa
- Average pressure in September: 1018.8mbar
The month with the highest atmospheric pressure is July (1021.8mbar).
The month with the lowest atmospheric pressure is February (1013.6mbar).
Average wind speed in September
Louterwater, South Africa
- Average wind speed in September: 15.3km/h
The windiest month (with the highest average wind speed) is June (16.1km/h).
The calmest month (with the lowest average wind speed) is May (13.1km/h).
Average humidity in September
Louterwater, South Africa
- Average humidity in September: 71%
The months with the highest relative humidity are January, February and December (76%).
The months with the lowest relative humidity are June and July (64%).
Average rainfall in September
Louterwater, South Africa
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is August (37mm).
The driest month (with the least rainfall) is December (17mm).
Average rainfall days in September
Louterwater, South Africa
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is December (12.2 days).
The month with the least rainy days is May (8.8 days).
Average daylight in September /
Average sunshine in September
Louterwater, 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 2min
The month with the most sunshine is January (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 6h and 36min).
Average sunshine days in September
Louterwater, South Africa
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is May (20.2 days).
The months with the least sunshine days are September and December (16.9 days).
Average UV index in September
Louterwater, South Africa
- Average UV index in September: 4
The months with the highest UV index are February and December (UV index 6).
The month with the lowest UV index is September (UV index 4).
Average cloud cover in September
Louterwater, South Africa
- Average cloud cover in September: 28
The month with the most cloud cover is October (Cloud cover 31).
The month with the least cloud cover is May (Cloud cover 23).
Average visibility in September
Louterwater, 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).
