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 sea temperature 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
Struisbaai experiences a transition to a still comfortable 16.9°C (62.4°F) in average high-temperatures with the arrival of September, not greatly differing from August's 16.1°C (61°F). During September's nights, Struisbaai notes a minor temperature decline, reaching an average of 12.8°C (55°F).Humidity
In September, the average relative humidity is 76%.Rainfall
In September, in Struisbaai, the rain falls for 14 days. Throughout September, 26mm (1.02") of precipitation is accumulated. In Struisbaai, South Africa, during the entire year, the rain falls for 148.7 days and collects up to 308mm (12.13") of precipitation.Sea temperature
In September, the average sea temperature is 15.5°C (59.9°F).Note: Most people do not find swimming enjoyable in water of 15.5°C (59.9°F). The task of controlling breathing becomes tougher as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Struisbaai, the average length of the day in September is 11h and 53min.On the first day of the month, sunrise is at 06:57 and sunset at 18:21. On the last day of September, sunrise is at 06:16 and sunset at 18:42 SAST.
Sunshine
In September, the average sunshine in Struisbaai is 8.1h.UV index
The months with the lowest UV index in Struisbaai are June through September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 4 during September translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Struisbaai?
What is the average humidity in September in Struisbaai?
How many days does it rain in September in Struisbaai?
What is the sea water temperature in September in Struisbaai?
How many hours of daylight does Struisbaai have in September?
When is the sunrise / sunset in September in Struisbaai?
How many hours of sunshine does Struisbaai have in September?
What is the month with the lowest UV index in Struisbaai?
How high is the UV index in September in Struisbaai?
Average temperature in September
Struisbaai, South Africa
- Average high temperature in September: 16.9°C
The warmest month (with the highest average high temperature) is February (22.7°C).
The month with the lowest average high temperature is August (16.1°C).
- Average low temperature in September: 12.8°C
The month with the highest average low temperature is February (19.3°C).
The coldest month (with the lowest average low temperature) is August (12°C).
Average pressure in September
Struisbaai, South Africa
- Average pressure in September: 1019.3mbar
The month with the highest atmospheric pressure is July (1021.7mbar).
The month with the lowest atmospheric pressure is February (1014mbar).
Average wind speed in September
Struisbaai, South Africa
- Average wind speed in September: 24km/h
The windiest month (with the highest average wind speed) is October (24.4km/h).
The calmest month (with the lowest average wind speed) is May (20.7km/h).
Average humidity in September
Struisbaai, South Africa
- Average humidity in September: 76%
The months with the highest relative humidity are February and March (77%).
The month with the lowest relative humidity is June (73%).
Average rainfall in September
Struisbaai, South Africa
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is June (51mm).
The driest month (with the least rainfall) is February (11mm).
Average rainfall days in September
Struisbaai, South Africa
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is September (14 days).
The month with the least rainy days is February (10.6 days).
Average sea temperature in September
Struisbaai, South Africa
- Average sea temperature in September: 15.5°C
The best months for swimming (with the highest average sea temperature) are January and February (21.3°C).
The coldest month (with the lowest average sea temperature) is August (14.6°C).
Average daylight in September /
Average sunshine in September
Struisbaai, 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 November (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 6h and 12min).
Average sunshine days in September
Struisbaai, South Africa
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is May (15.8 days).
The month with the least sunshine days is September (12.4 days).
Average UV index in September
Struisbaai, South Africa
- Average UV index in September: 4
The month with the highest UV index is February (UV index 6).
The months with the lowest UV index are June, July, August and September (UV index 4).
Average cloud cover in September
Struisbaai, South Africa
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 31).
Average visibility in September
Struisbaai, 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).
