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 arrival of September sees a recorded average high-temperature of a still refreshing 19.2°C (66.6°F), showing little divergence from the previous month's conditions. An average nighttime temperature of 15°C (59°F) marks September.Humidity
In September, the average relative humidity in Summerstrand is 73%.Rainfall
September and December are months with the least rain when the rain falls for 9.8 days and typically aggregates up to 22mm (0.87") of rain.Daylight
In Summerstrand, the average length of the day in September is 11h and 53min.On the first day of September in Summerstrand, South Africa, sunrise is at 06:34 and sunset at 17:59. On the last day of the month, sunrise is at 05:54 and sunset at 18:19 SAST.
Sunshine
In Summerstrand, the average sunshine in September is 8.4h.UV index
March through November, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. 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 is the usual temperature for Summerstrand in September?
What is the average humidity in September in Summerstrand?
What is the driest month in Summerstrand?
How much does it rain in Summerstrand in September?
How many hours of daylight does Summerstrand have in September?
When are sunrise and sunset in September in Summerstrand?
How long on average sun shines in September in Summerstrand?
What is the month with the lowest UV index in Summerstrand?
How high is the UV index in September in Summerstrand?
Average temperature in September
Summerstrand, South Africa
- Average high temperature in September: 19.2°C
The warmest months (with the highest average high temperature) are January and February (23.8°C).
The month with the lowest average high temperature is August (19.1°C).
- Average low temperature in September: 15°C
The month with the highest average low temperature is February (20.2°C).
The coldest month (with the lowest average low temperature) is August (14.6°C).
Average pressure in September
Summerstrand, South Africa
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is July (1021.8mbar).
The months with the lowest atmospheric pressure are January and February (1013.6mbar).
Average wind speed in September
Summerstrand, South Africa
- Average wind speed in September: 23.3km/h
The windiest month (with the highest average wind speed) is October (23.7km/h).
The calmest month (with the lowest average wind speed) is May (19.4km/h).
Average humidity in September
Summerstrand, South Africa
- Average humidity in September: 73%
The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is June (64%).
Average rainfall in September
Summerstrand, South Africa
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is June (33mm).
The driest months (with the least rainfall) are September and December (22mm).
Average rainfall days in September
Summerstrand, South Africa
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is December (14.5 days).
The month with the least rainy days is June (9 days).
Average daylight in September /
Average sunshine in September
Summerstrand, 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 November (Average sunshine: 9h and 42min).
The month with the least sunshine is August (Average sunshine: 6h and 30min).
Average sunshine days in September
Summerstrand, South Africa
- Average sunshine days in September: 18 days
The months with the most sunshine days are May and June (20 days).
The month with the least sunshine days is December (13.5 days).
Average UV index in September
Summerstrand, South Africa
- Average UV index in September: 5
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are March, April, May, June, July, August, September, October and November (UV index 5).
Average cloud cover in September
Summerstrand, South Africa
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in September
Summerstrand, 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).
