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
January
Weather in January
Temperature
January is the month when Tweefontein sees the highest average temperatures, with a high of 28.3°C (82.9°F) and a low of 17.1°C (62.8°F).Heat index
The average heat index in January is calculated to be a tropical 30°C (86°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
January and February, with an average relative humidity of 64%, are the most humid months in Tweefontein.Rainfall
January is the month with the most rainfall in Tweefontein. Rain falls for 21.8 days and accumulates 92mm (3.62") of precipitation.Daylight
In January, the average length of the day is 13h and 31min.On the first day of January, sunrise is at 05:17 and sunset at 18:58. On the last day of the month, sunrise is at 05:39 and sunset at 18:56 SAST.
Sunshine
In January, the average sunshine is 11.4h.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 estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: In January, the maximum UV index of 6 transforms into these recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest?
How hot does it get in January?
What are the most humid months?
What is the average humidity in January?
What is the wettest month?
How many days does it rain in January?
How many hours of daylight does Tweefontein have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Tweefontein have in January?
What are the months with the highest UV index?
What is the UV index intensity in January?
Average temperature in January
Tweefontein, South Africa
- Average high temperature in January: 28.3°C
The warmest month (with the highest average high temperature) is January (28.3°C).
The months with the lowest average high temperature are June and July (18.8°C).
- Average low temperature in January: 17.1°C
The months with the highest average low temperature are January and December (17.1°C).
The coldest month (with the lowest average low temperature) is July (6.7°C).
Average pressure in January
Tweefontein, South Africa
- Average pressure in January: 1013.2mbar
The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is January (1013.2mbar).
Average wind speed in January
Tweefontein, South Africa
- Average wind speed in January: 9.2km/h
The windiest months (with the highest average wind speed) are October and November (11.5km/h).
The calmest month (with the lowest average wind speed) is May (7.7km/h).
Average humidity in January
Tweefontein, South Africa
- Average humidity in January: 64%
The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is September (36%).
Average rainfall in January
Tweefontein, South Africa
- Average rainfall in January: 92mm
The wettest month (with the highest rainfall) is January (92mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in January
Tweefontein, South Africa
- Average rainfall days in January: 21.8 days
The month with the highest number of rainy days is January (21.8 days).
The month with the least rainy days is July (0.8 days).
Average daylight in January /
Average sunshine in January
Tweefontein, South Africa
- Average daylight in January: 13h and 3min
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 January: 11h and 2min
The month with the most sunshine is October (Average sunshine: 11h and 48min).
The months with the least sunshine are April and August (Average sunshine: 7h and 30min).
Average sunshine days in January
Tweefontein, South Africa
- Average sunshine days in January: 6.5 days
The month with the most sunshine days is July (29.8 days).
The months with the least sunshine days are January and December (6.5 days).
Average UV index in January
Tweefontein, 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
Tweefontein, South Africa
- Average cloud cover in January: 27
The month with the most cloud cover is January (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
Tweefontein, South Africa
- Average visibility in January: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
