Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
In Vierfontein, the months of January and December register the highest average temperatures, peaking at 29.5°C (85.1°F).Heat index
During January, the heat index is computed to be a hot 31°C (87.8°F). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In January, the average relative humidity in Vierfontein is 54%.Rainfall
In Vierfontein, in January, during 16.4 rainfall days, 67mm (2.64") of precipitation is typically accumulated. In Vierfontein, during the entire year, the rain falls for 98.1 days and collects up to 342mm (13.46") of precipitation.Daylight
In January, the average length of the day in Vierfontein is 13h and 37min.On the first day of January, sunrise is at 05:21 and sunset at 19:10. On the last day of the month, sunrise is at 05:45 and sunset at 19:07 SAST.
Sunshine
The average sunshine in January in Vierfontein is 11.6h.UV index
January through March, October through 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 threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 6 during January, leads to the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What part of the year is the hottest in Vierfontein?
How hot is January in Vierfontein?
What is the average humidity in January in Vierfontein?
How many days does it rain in January in Vierfontein?
How many hours of daylight does Vierfontein have in January?
When are sunrise and sunset in January in Vierfontein?
How long on average sun shines in January in Vierfontein?
When is the highest UV index in Vierfontein?
What is the UV index reading in January in Vierfontein?
Average temperature in January
Vierfontein, South Africa
- Average high temperature in January: 29.5°C
The warmest months (with the highest average high temperature) are January and December (29.5°C).
The months with the lowest average high temperature are June and July (18.3°C).
- Average low temperature in January: 17.8°C
The month with the highest average low temperature is December (18°C).
The coldest month (with the lowest average low temperature) is July (5.6°C).
Average pressure in January
Vierfontein, South Africa
- Average pressure in January: 1012.1mbar
The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is January (1012.1mbar).
Average wind speed in January
Vierfontein, South Africa
- Average wind speed in January: 10.7km/h
The windiest month (with the highest average wind speed) is November (13.8km/h).
The calmest month (with the lowest average wind speed) is May (8.9km/h).
Average humidity in January
Vierfontein, South Africa
- Average humidity in January: 54%
The month with the highest relative humidity is February (58%).
The month with the lowest relative humidity is September (29%).
Average rainfall in January
Vierfontein, South Africa
- Average rainfall in January: 67mm
The wettest month (with the highest rainfall) is December (73mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in January
Vierfontein, South Africa
- Average rainfall days in January: 16.4 days
The month with the highest number of rainy days is December (16.7 days).
The months with the least rainy days are July and August (1 days).
Average daylight in January /
Average sunshine in January
Vierfontein, South Africa
- Average daylight in January: 13h and 4min
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 January: 11h and 4min
The months with the most sunshine are October and November (Average sunshine: 11h and 48min).
The month with the least sunshine is August (Average sunshine: 7h and 30min).
Average sunshine days in January
Vierfontein, South Africa
- Average sunshine days in January: 10.8 days
The month with the most sunshine days is August (29.5 days).
The month with the least sunshine days is December (10.5 days).
Average UV index in January
Vierfontein, South Africa
- Average UV index in January: 6
The months with the highest UV index are January, February, March, October, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in January
Vierfontein, South Africa
- Average cloud cover in January: 21
The month with the most cloud cover is January (Cloud cover 21).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in January
Vierfontein, South Africa
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Vierfontein, South Africa
Weather forecast for your location
2. Allow the app to use your location
