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 start of September signals a slight increase in the average high-temperature, moving from a pleasant 21.3°C (70.3°F) in August to a warm 26.1°C (79°F). In Griekwastad, the average temperature during the nights of September marks a significant drop from the daily high, settling at a cool 11.7°C (53.1°F).Humidity
The least humid month in Griekwastad is September, with an average relative humidity of 25%.Rainfall
August and September are months with the least rain in Griekwastad when the rain falls for 2.8 days and typically aggregates up to 3mm (0.12") of rain.Daylight
The average length of the day in September in Griekwastad is 11h and 56min.On the first day of September in Griekwastad, sunrise is at 06:40 and sunset at 18:12. On the last day of the month, sunrise is at 06:06 and sunset at 18:27 SAST.
Sunshine
The average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September in Griekwastad is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 5 turns into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Griekwastad in September?
What is the least humid month in Griekwastad?
What is the average humidity in September in Griekwastad?
What is the driest month in Griekwastad?
How many days does it rain in September in Griekwastad?
How many hours of daylight does Griekwastad have in September?
What time are sunrise and sunset in September in Griekwastad?
How long on average sun shines in September in Griekwastad?
How high is the UV index in September in Griekwastad?
Average temperature in September
Griekwastad, South Africa
- Average high temperature in September: 26.1°C
The warmest months (with the highest average high temperature) are January and December (32.3°C).
The month with the lowest average high temperature is June (17.6°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is January (21.6°C).
The coldest month (with the lowest average low temperature) is July (6.8°C).
Average pressure in September
Griekwastad, South Africa
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is July (1024.4mbar).
The month with the lowest atmospheric pressure is January (1010.5mbar).
Average wind speed in September
Griekwastad, South Africa
- Average wind speed in September: 16.2km/h
The windiest month (with the highest average wind speed) is November (18.2km/h).
The calmest month (with the lowest average wind speed) is May (12.3km/h).
Average humidity in September
Griekwastad, South Africa
- Average humidity in September: 25%
The month with the highest relative humidity is June (44%).
The month with the lowest relative humidity is September (25%).
Average rainfall in September
Griekwastad, South Africa
- Average rainfall in September: 3mm
The wettest month (with the highest rainfall) is April (32mm).
The driest months (with the least rainfall) are August and September (3mm).
Average rainfall days in September
Griekwastad, South Africa
- Average rainfall days in September: 2.8 days
The month with the highest number of rainy days is February (10.3 days).
The month with the least rainy days is July (1.4 days).
Average daylight in September /
Average sunshine in September
Griekwastad, South Africa
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in September: 9h and 5min
The months with the most sunshine are January and November (Average sunshine: 11h and 54min).
The months with the least sunshine are May, June and July (Average sunshine: 7h and 36min).
Average sunshine days in September
Griekwastad, South Africa
- Average sunshine days in September: 26.3 days
The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is February (15.6 days).
Average UV index in September
Griekwastad, South Africa
- Average UV index in September: 5
The months with the highest UV index are January, February, November and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in September
Griekwastad, South Africa
- Average cloud cover in September: 9
The month with the most cloud cover is February (Cloud cover 17).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Griekwastad, 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).
