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
At the onset of September, Heatonville records an average high-temperature of a moderately hot 23.5°C (74.3°F), showing little deviation from the preceding month. Nightly temperatures drop to an average low of 18.3°C (64.9°F) in September.Humidity
In September, the average relative humidity is 73%.Rainfall
In Heatonville, in September, it is raining for 14.1 days, with typically 35mm (1.38") of accumulated precipitation. In Heatonville, during the entire year, the rain falls for 195.5 days and collects up to 707mm (27.83") of precipitation.Daylight
The average length of the day in September in Heatonville is 11h and 56min.On the first day of the month, sunrise is at 06:06 and sunset at 17:38. On the last day of September, in Heatonville, South Africa, sunrise is at 05:32 and sunset at 17:53 SAST.
Sunshine
In Heatonville, the average sunshine in September is 6.9h.UV index
The months with the lowest UV index in Heatonville are June, July, September and October, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Heatonville?
What is the average humidity in September in Heatonville?
How many days does it rain in September in Heatonville?
What is the average length of the day in September in Heatonville?
When are sunrise and sunset in September in Heatonville?
How many hours of sunshine does Heatonville have in September?
What are the months with the lowest UV index in Heatonville?
What is the UV index intensity in September in Heatonville?
Average temperature in September
Heatonville, South Africa
- Average high temperature in September: 23.5°C
The warmest month (with the highest average high temperature) is February (27.3°C).
The month with the lowest average high temperature is July (22.3°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is February (22.6°C).
The coldest month (with the lowest average low temperature) is July (16.7°C).
Average pressure in September
Heatonville, South Africa
- Average pressure in September: 1019mbar
The month with the highest atmospheric pressure is July (1023.1mbar).
The month with the lowest atmospheric pressure is January (1013.7mbar).
Average wind speed in September
Heatonville, South Africa
- Average wind speed in September: 21km/h
The windiest month (with the highest average wind speed) is October (22km/h).
The calmest month (with the lowest average wind speed) is May (17.1km/h).
Average humidity in September
Heatonville, South Africa
- Average humidity in September: 73%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is June (66%).
Average rainfall in September
Heatonville, South Africa
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is December (98mm).
The driest month (with the least rainfall) is June (22mm).
Average rainfall days in September
Heatonville, South Africa
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is December (22.8 days).
The month with the least rainy days is June (8.6 days).
Average daylight in September /
Average sunshine in September
Heatonville, South Africa
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is February (Average sunshine: 8h and 54min).
The month with the least sunshine is April (Average sunshine: 6h and 0min).
Average sunshine days in September
Heatonville, South Africa
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is June (19.5 days).
The month with the least sunshine days is January (5.8 days).
Average UV index in September
Heatonville, South Africa
- Average UV index in September: 5
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are June, July, September and October (UV index 5).
Average cloud cover in September
Heatonville, South Africa
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 20).
Average visibility in September
Heatonville, South Africa
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
