September weather forecastMbabane, Swaziland
September
Weather in September
In September, the weather in Mbabane begins warming up, signalling the onset of the hot season. Increase in rainfall is accompanied by a rise in temperature and daylight. Despite this mutability, September offers a relatively dry season in comparison to impending months. Even though the wind speed peaks at 8.3km/h (5.2mph) in September, it doesn't greatly impact the overall weather conditions. Approaching October, anticipate a substantial rise in rainfall and a constant increase in temperature.Temperature
September's arrival brings an average high-temperature of a moderately hot 25.1°C (77.2°F), demonstrating subtle variation from the preceding month. In September, a remarkable difference from daytime highs is noted, as Mbabane records an average temperature of 12.5°C (54.5°F) during the night.Humidity
The average relative humidity in September is 59%.Rainfall
In September, in Mbabane, the rain falls for 8.3 days. Throughout September, 20mm (0.79") of precipitation is accumulated. In Mbabane, Swaziland, during the entire year, the rain falls for 167.8 days and collects up to 715mm (28.15") of precipitation.Daylight
In September, the average length of the day is 11h and 57min.On the first day of September, sunrise is at 06:07 and sunset at 17:43. On the last day of the month, sunrise is at 05:35 and sunset at 17:55 SAST.
Sunshine
In September, the average sunshine in Mbabane, Swaziland, is 8h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mbabane, Swaziland
- Average high temperature in September: 25.1°C
The warmest month (with the highest average high temperature) is December (26.2°C).
The months with the lowest average high temperature are June and July (20.3°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is January (16.6°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).
Average pressure in September
Mbabane, Swaziland
- Average pressure in September: 1019.3mbar
The month with the highest atmospheric pressure is July (1024.2mbar).
The month with the lowest atmospheric pressure is January (1014mbar).
Average wind speed in September
Mbabane, Swaziland
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is September (8.3km/h).
The calmest month (with the lowest average wind speed) is March (6.2km/h).
Average humidity in September
Mbabane, Swaziland
- Average humidity in September: 59%
The months with the highest relative humidity are January, February and March (83%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Mbabane, Swaziland
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is December (134mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in September
Mbabane, Swaziland
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is December (24 days).
The month with the least rainy days is June (3.4 days).
Average daylight in September /
Average sunshine in September
Mbabane, Swaziland
- Average daylight in September: 11h and 54min
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 0min
The month with the most sunshine is November (Average sunshine: 9h and 0min).
The month with the least sunshine is April (Average sunshine: 6h and 24min).
Average sunshine days in September
Mbabane, Swaziland
- Average sunshine days in September: 18 days
The month with the most sunshine days is June (25.7 days).
The month with the least sunshine days is December (4.5 days).
Average UV index in September
Mbabane, Swaziland
- Average UV index in September: 5
The months with the highest UV index are January and November (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in September
Mbabane, Swaziland
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Mbabane, Swaziland
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The month with the lowest visibility is January (6km).
