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
With the start of September, Cape Saint Francis measures an average high-temperature of a pleasant 20.6°C (69.1°F), not significantly differing from August's 19.8°C (67.6°F). Throughout the month of September, Cape Saint Francis sees a steady low-temperature average of 13°C (55.4°F).Humidity
In Cape Saint Francis, the average relative humidity in September is 69%.Rainfall
In September, in Cape Saint Francis, South Africa, the rain falls for 8.5 days. Throughout September, 18mm (0.71") of precipitation is accumulated. Throughout the year, there are 127.2 rainfall days, and 279mm (10.98") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 53min.On the first day of September, sunrise is at 06:38 and sunset at 18:02. On the last day of the month, sunrise is at 05:58 and sunset at 18:23 SAST.
Sunshine
In September, the average sunshine in Cape Saint Francis is 8.7h.UV index
March through November, with an average maximum UV index of 5, are months with the lowest UV index in Cape Saint Francis. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Cape Saint Francis?
What is the average humidity in September in Cape Saint Francis?
How much does it rain in Cape Saint Francis in September?
What is the average length of the day in September in Cape Saint Francis?
What time are sunrise and sunset in September in Cape Saint Francis?
How long on average sun shines in September in Cape Saint Francis?
When is the lowest UV index in Cape Saint Francis?
How high is the UV index in September in Cape Saint Francis?
Average temperature in September
Cape Saint Francis, South Africa
- Average high temperature in September: 20.6°C
The warmest month (with the highest average high temperature) is February (26.1°C).
The month with the lowest average high temperature is July (19.7°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is February (18.7°C).
The coldest month (with the lowest average low temperature) is July (11.7°C).
Average pressure in September
Cape Saint Francis, South Africa
- Average pressure in September: 1018.7mbar
The month with the highest atmospheric pressure is July (1022mbar).
The month with the lowest atmospheric pressure is January (1013.5mbar).
Average wind speed in September
Cape Saint Francis, South Africa
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is November (17.2km/h).
The calmest month (with the lowest average wind speed) is May (13.8km/h).
Average humidity in September
Cape Saint Francis, South Africa
- Average humidity in September: 69%
The month with the highest relative humidity is February (75%).
The month with the lowest relative humidity is June (61%).
Average rainfall in September
Cape Saint Francis, South Africa
- Average rainfall in September: 18mm
The wettest months (with the highest rainfall) are March and October (30mm).
The driest month (with the least rainfall) is August (16mm).
Average rainfall days in September
Cape Saint Francis, South Africa
- Average rainfall days in September: 8.5 days
The months with the highest number of rainy days are October and December (13.4 days).
The month with the least rainy days is June (7.8 days).
Average daylight in September /
Average sunshine in September
Cape Saint Francis, 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 4min
The month with the most sunshine is November (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 6h and 36min).
Average sunshine days in September
Cape Saint Francis, South Africa
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is June (21.2 days).
The month with the least sunshine days is February (13.2 days).
Average UV index in September
Cape Saint Francis, 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
Cape Saint Francis, South Africa
- Average cloud cover in September: 28
The month with the most cloud cover is December (Cloud cover 37).
The month with the least cloud cover is June (Cloud cover 21).
Average visibility in September
Cape Saint Francis, 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).
