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
Weather in September
Temperature
As September takes hold, the average high-temperature is a still warm 27.5°C (81.5°F), nearly mirroring that of the previous month. Against the high September temperatures, Ngonini records an average drop to a mild 15.5°C (59.9°F) at night.Heat index
The heat index value for September is appraised at 28°C (82.4°F). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
August and September, with an average relative humidity of 56%, are the least humid months in Ngonini, Swaziland.Rainfall
In September, in Ngonini, the rain falls for 7.3 days. Throughout September, 11mm (0.43") of precipitation is accumulated. Throughout the year, there are 138.5 rainfall days, and 488mm (19.21") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 57min.On the first day of the month, sunrise is at 06:06 and sunset at 17:42. On the last day of September, in Ngonini, sunrise is at 05:34 and sunset at 17:53 SAST.
Sunshine
In September, the average sunshine in Ngonini, Swaziland, is 7.9h.UV index
January through March, September through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What are the temperatures in Ngonini in September?
What is the least humid month in Ngonini?
What is the average humidity in September in Ngonini?
How much does it rain in Ngonini in September?
How many hours of daylight does Ngonini have in September?
What time are sunrise and sunset in September in Ngonini?
How long on average sun shines in September in Ngonini?
When is the highest UV index in Ngonini?
How high is the UV index in September in Ngonini?
Average temperature in September
Ngonini, Swaziland
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is December (29.1°C).
The month with the lowest average high temperature is July (23°C).
- Average low temperature in September: 15.5°C
The months with the highest average low temperature are January and February (19°C).
The coldest month (with the lowest average low temperature) is June (10.6°C).
Average pressure in September
Ngonini, Swaziland
- Average pressure in September: 1019.3mbar
The month with the highest atmospheric pressure is July (1024.1mbar).
The month with the lowest atmospheric pressure is January (1013.7mbar).
Average wind speed in September
Ngonini, Swaziland
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is September (8.5km/h).
The calmest months (with the lowest average wind speed) are March and May (6.4km/h).
Average humidity in September
Ngonini, Swaziland
- Average humidity in September: 56%
The months with the highest relative humidity are January, February and March (78%).
The months with the lowest relative humidity are August and September (56%).
Average rainfall in September
Ngonini, Swaziland
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is December (94mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Ngonini, Swaziland
- Average rainfall days in September: 7.3 days
The month with the highest number of rainy days is December (20.5 days).
The month with the least rainy days is June (1.8 days).
Average daylight in September /
Average sunshine in September
Ngonini, Swaziland
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 36min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 18min).
The month with the least sunshine is April (Average sunshine: 6h and 24min).
Average sunshine days in September
Ngonini, Swaziland
- Average sunshine days in September: 21 days
The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in September
Ngonini, Swaziland
- Average UV index in September: 6
The months with the highest UV index are January, February, March, September, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July and August (UV index 5).
Average cloud cover in September
Ngonini, Swaziland
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 13).
Average visibility in September
Ngonini, Swaziland
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
Ngonini, Swaziland
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