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
September welcomes an average high-temperature of a warm 25°C (77°F), not much different from the preceding month. Nighttime temperatures throughout September register a significant deviation from the day's highs, averaging at a cool 11.1°C (52°F).Humidity
The average relative humidity in September is 57%.Rainfall
In Mahamba, in September, it is raining for 6.7 days, with typically 11mm (0.43") of accumulated precipitation. Throughout the year, there are 145.6 rainfall days, and 538mm (21.18") of precipitation is accumulated.Daylight
In Mahamba, the average length of the day in September is 11h and 56min.On the first day of the month, sunrise is at 06:08 and sunset at 17:42. On the last day of September, in Mahamba, sunrise is at 05:35 and sunset at 17:55 SAST.
Sunshine
In Mahamba, Swaziland, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Mahamba have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Mahamba have in September?
What is the UV index intensity in September?
Average temperature in September
Mahamba, Swaziland
- Average high temperature in September: 25°C
The warmest month (with the highest average high temperature) is December (26.3°C).
The month with the lowest average high temperature is July (19.4°C).
- Average low temperature in September: 11.1°C
The months with the highest average low temperature are January and December (15.2°C).
The coldest month (with the lowest average low temperature) is July (5.6°C).
Average pressure in September
Mahamba, Swaziland
- Average pressure in September: 1019.3mbar
The month with the highest atmospheric pressure is July (1024.3mbar).
The months with the lowest atmospheric pressure are January and December (1014.4mbar).
Average wind speed in September
Mahamba, Swaziland
- Average wind speed in September: 9.4km/h
The windiest months (with the highest average wind speed) are June and September (9.4km/h).
The calmest month (with the lowest average wind speed) is March (6.7km/h).
Average humidity in September
Mahamba, Swaziland
- Average humidity in September: 57%
The months with the highest relative humidity are January, February and March (82%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Mahamba, Swaziland
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is January (105mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in September
Mahamba, Swaziland
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is January (23 days).
The month with the least rainy days is June (2.6 days).
Average daylight in September /
Average sunshine in September
Mahamba, Swaziland
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is October (Average sunshine: 9h and 30min).
The month with the least sunshine is April (Average sunshine: 6h and 36min).
Average sunshine days in September
Mahamba, Swaziland
- Average sunshine days in September: 21.4 days
The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is January (5 days).
Average UV index in September
Mahamba, Swaziland
- Average UV index in September: 5
The month with the highest UV index is November (UV index 6).
The months with the lowest UV index are April, May, June and July (UV index 4).
Average cloud cover in September
Mahamba, Swaziland
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and July (Cloud cover 14).
Average visibility in September
Mahamba, Swaziland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March and December (7km).
