Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December is the warmest month, with the temperature often reaching an average high of 27.5°C (81.5°F) and an average low of 17.5°C (63.5°F).Heat index
Throughout December, the heat index is calculated to be a tropical 31°C (87.8°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In December, the average relative humidity in Siphofaneni is 79%.Rainfall
The month with the most rainfall in Siphofaneni, Swaziland, is December, when the rain falls for 22.7 days and typically aggregates up to 110mm (4.33") of precipitation.Daylight
The month with the longest days in Siphofaneni is December, with an average of 13h and 48min of daylight.On the first day of December, sunrise is at 04:51 and sunset at 18:33. On the last day of the month, sunrise is at 05:02 and sunset at 18:50 SAST.
Sunshine
In December, the average sunshine is 8.7h.UV index
January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, an average UV index of 6 transforms into the following instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
What are December temperatures?
What is the average humidity in December?
What is the wettest month in Siphofaneni?
How much does it rain in December?
When are the longest days?
How many hours of daylight does Siphofaneni have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the highest UV index?
What is the UV index intensity in December?
Average temperature in December
Siphofaneni, Swaziland
- Average high temperature in December: 27.5°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 December: 17.5°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 December
Siphofaneni, Swaziland
- Average pressure in December: 1014.2mbar
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 December
Siphofaneni, Swaziland
- Average wind speed in December: 7.1km/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 December
Siphofaneni, Swaziland
- Average humidity in December: 79%
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 December
Siphofaneni, Swaziland
- Average rainfall in December: 110mm
The wettest month (with the highest rainfall) is December (110mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in December
Siphofaneni, Swaziland
- Average rainfall days in December: 22.7 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 December /
Average sunshine in December
Siphofaneni, Swaziland
- Average daylight in December: 13h 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 December: 8h and 4min
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 December
Siphofaneni, Swaziland
- Average sunshine days in December: 5.3 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 December
Siphofaneni, Swaziland
- Average UV index in December: 6
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 December
Siphofaneni, Swaziland
- Average cloud cover in December: 53
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 December
Siphofaneni, Swaziland
- Average visibility in December: 8km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February and March (7km).
Siphofaneni, Swaziland
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