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, the average high-temperature is recorded at a still refreshing 17.3°C (63.1°F), exhibiting a minimal shift from August's 16.2°C (61.2°F). In Sandbaai, the nighttime temperature averages to a fresh 12.2°C (54°F) during September.Humidity
January through March, May, September and October, with an average relative humidity of 76%, are the most humid months.Rainfall
In September, the rain falls for 7.5 days. Throughout September, 15mm (0.59") of precipitation is accumulated. Throughout the year, there are 113.9 rainfall days, and 270mm (10.63") of precipitation is accumulated.Daylight
The average length of the day in September in Sandbaai is 11h and 53min.On the first day of the month, sunrise is at 07:01 and sunset at 18:25. On the last day of September, in Sandbaai, sunrise is at 06:20 and sunset at 18:45 SAST.
Sunshine
In Sandbaai, the average sunshine in September is 8.2h.UV index
The months with the lowest UV index are May through 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 radiation for the average person.Note: The UV index of 4 during September translates into the following guidance:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the usual temperature for Sandbaai in September?
What is the most humid month in Sandbaai?
What is the average humidity in September in Sandbaai?
How many days does it rain in September in Sandbaai?
How many hours of daylight does Sandbaai have in September?
What time are sunrise and sunset in September in Sandbaai?
How long on average sun shines in September in Sandbaai?
What is the month with the lowest UV index in Sandbaai?
What is the UV index intensity in September in Sandbaai?
Average temperature in September
Sandbaai, South Africa
- Average high temperature in September: 17.3°C
The warmest month (with the highest average high temperature) is February (23.3°C).
The month with the lowest average high temperature is August (16.2°C).
- Average low temperature in September: 12.2°C
The month with the highest average low temperature is February (18.3°C).
The coldest month (with the lowest average low temperature) is August (11.5°C).
Average pressure in September
Sandbaai, South Africa
- Average pressure in September: 1019.4mbar
The month with the highest atmospheric pressure is July (1021.8mbar).
The month with the lowest atmospheric pressure is February (1013.8mbar).
Average wind speed in September
Sandbaai, South Africa
- Average wind speed in September: 20.3km/h
The windiest month (with the highest average wind speed) is November (21.5km/h).
The calmest month (with the lowest average wind speed) is May (17.7km/h).
Average humidity in September
Sandbaai, South Africa
- Average humidity in September: 76%
The months with the highest relative humidity are January, February, March, May, September and October (76%).
The months with the lowest relative humidity are April, June and July (74%).
Average rainfall in September
Sandbaai, South Africa
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is June (47mm).
The driest months (with the least rainfall) are February and December (13mm).
Average rainfall days in September
Sandbaai, South Africa
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is October (7.1 days).
Average daylight in September /
Average sunshine in September
Sandbaai, 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 1min
The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 6h and 12min).
Average sunshine days in September
Sandbaai, South Africa
- Average sunshine days in September: 20 days
The month with the most sunshine days is October (22 days).
The month with the least sunshine days is February (13.9 days).
Average UV index in September
Sandbaai, South Africa
- Average UV index in September: 4
The months with the highest UV index are January and February (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in September
Sandbaai, South Africa
- Average cloud cover in September: 32
The months with the most cloud cover are March and October (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Sandbaai, 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).
Sandbaai, South Africa
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