September weather forecastMacnab, Swaziland
September
Weather in September
Signaling the onset of Spring, September in Macnab, Swaziland heralds a rise in average temperatures, scaling from 13.6°C (56.5°F) to 25.9°C (78.6°F). An increase in precipitation is observed with an accumulation of 18mm (0.71") rain, signifying the end of the driest phase. The number of daylight hours further extends to 12 and is enhanced by 7.9 hours of sunshine, which promotes outdoor pursuits and sightseeing. A mild increment in wind speed to 8.2km/h (5.1mph) and a slight drop in pressure levels to 1019.2mb indicate a balance in the city's climatic conditions. The increase in cloud cover to 28% is a clear indication of the shifting season.Temperature
The transition into September reveals an average high-temperature of a still moderately hot 25.9°C (78.6°F), mirroring a close resemblance to August. Macnab anticipates a stark contrast in temperature during September nights, with an average low of 13.6°C (56.5°F).Humidity
In September, the average relative humidity is 59%.Rainfall
In Macnab, during September, the rain falls for 8.7 days and regularly aggregates up to 18mm (0.71") of precipitation. In Macnab, during the entire year, the rain falls for 156.8 days and collects up to 549mm (21.61") of precipitation.Daylight
In Macnab, the average length of the day in September is 11h and 57min.On the first day of September, sunrise is at 06:05 and sunset at 17:41. On the last day of the month, sunrise is at 05:33 and sunset at 17:53 SAST.
Sunshine
The average sunshine in September is 7.9h.UV index
April through October, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Macnab, Swaziland
- Average high temperature in September: 25.9°C
The warmest month (with the highest average high temperature) is December (27.5°C).
The month with the lowest average high temperature is July (21.4°C).
- Average low temperature in September: 13.6°C
The month with the highest average low temperature is December (17.5°C).
The coldest month (with the lowest average low temperature) is July (9.3°C).
Average pressure in September
Macnab, Swaziland
- Average pressure in September: 1019.2mbar
The month with the highest atmospheric pressure is July (1024.1mbar).
The month with the lowest atmospheric pressure is January (1014mbar).
Average wind speed in September
Macnab, Swaziland
- Average wind speed in September: 8.2km/h
The windiest month (with the highest average wind speed) is September (8.2km/h).
The calmest month (with the lowest average wind speed) is March (6.1km/h).
Average humidity in September
Macnab, Swaziland
- Average humidity in September: 59%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Macnab, Swaziland
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is December (110mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in September
Macnab, Swaziland
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is December (22.7 days).
The month with the least rainy days is June (3.6 days).
Average daylight in September /
Average sunshine in September
Macnab, 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: 7h and 54min
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
Macnab, Swaziland
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is June (25.4 days).
The month with the least sunshine days is December (5.3 days).
Average UV index in September
Macnab, Swaziland
- Average UV index in September: 5
The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 5).
Average cloud cover in September
Macnab, Swaziland
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Macnab, Swaziland
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February and March (7km).
