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
Rooiberg, South Africa, ushers in January with an average high-temperature of a still warm 29.8°C (85.6°F), showing a close resemblance to the previous month. Rooiberg encounters a steady low-temperature average of 19.3°C (66.7°F) throughout the month of January.Heat index
For January, the heat index is computed to be a tropical 33°C (91.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
In Rooiberg, the average relative humidity in January is 61%.Rainfall
January is the month with the most rainfall in Rooiberg. Rain falls for 20.2 days and accumulates 91mm (3.58") of precipitation.Daylight
In Rooiberg, the average length of the day in January is 13h and 28min.On the first day of January, sunrise is at 05:22 and sunset at 19:01. On the last day of the month, sunrise is at 05:44 and sunset at 18:59 SAST.
Sunshine
In Rooiberg, the average sunshine in January is 11.4h.UV index
January through March, September through December, with an average maximum UV index of 6, are months with the highest UV index in Rooiberg. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In January, the maximum UV index of 6 transforms into these recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Rooiberg during January?
What is the average humidity in January in Rooiberg?
What is the wettest month in Rooiberg?
How many days does it rain in January in Rooiberg?
How many hours of daylight does Rooiberg have in January?
What time are sunrise and sunset in January in Rooiberg?
How many hours of sunshine does Rooiberg have in January?
When is the highest UV index in Rooiberg?
What is the UV index intensity in January in Rooiberg?
Average temperature in January
Rooiberg, South Africa
- Average high temperature in January: 29.8°C
The warmest months (with the highest average high temperature) are October, November and December (29.9°C).
The months with the lowest average high temperature are June and July (20.5°C).
- Average low temperature in January: 19.3°C
The month with the highest average low temperature is January (19.3°C).
The coldest month (with the lowest average low temperature) is July (7.4°C).
Average pressure in January
Rooiberg, South Africa
- Average pressure in January: 1012.8mbar
The month with the highest atmospheric pressure is July (1024.4mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).
Average wind speed in January
Rooiberg, South Africa
- Average wind speed in January: 8.1km/h
The windiest month (with the highest average wind speed) is October (10.2km/h).
The calmest month (with the lowest average wind speed) is May (6km/h).
Average humidity in January
Rooiberg, South Africa
- Average humidity in January: 61%
The month with the highest relative humidity is February (62%).
The month with the lowest relative humidity is September (35%).
Average rainfall in January
Rooiberg, South Africa
- Average rainfall in January: 91mm
The wettest month (with the highest rainfall) is January (91mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in January
Rooiberg, South Africa
- Average rainfall days in January: 20.2 days
The month with the highest number of rainy days is December (20.7 days).
The month with the least rainy days is July (0.6 days).
Average daylight in January /
Average sunshine in January
Rooiberg, South Africa
- Average daylight in January: 13h and 3min
The month with the longest days is December (Average daylight: 13h and 36min).
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 month with the least sunshine is August (Average sunshine: 7h and 30min).
Average sunshine days in January
Rooiberg, South Africa
- Average sunshine days in January: 7.3 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is December (5.8 days).
Average UV index in January
Rooiberg, South Africa
- Average UV index in January: 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 June and July (UV index 4).
Average cloud cover in January
Rooiberg, South Africa
- Average cloud cover in January: 26
The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in January
Rooiberg, 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).
