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 snowfall in January
- Average snowfall 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
January brings the highest temperatures, with an average high of 29.1°C (84.4°F) and an average low of 16.8°C (62.2°F).Heat index
The average heat index in January is computed to be a hot 30°C (86°F). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly 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 January, the average relative humidity in Rosmead is 53%.Rainfall
January is the month with the most rainfall. Rain falls for 9.6 days and accumulates 28mm (1.1") of precipitation.Snowfall
In Rosmead, snow does not fall in January through July, September through December.Daylight
The average length of the day in January is 13h and 56min.On the first day of January in Rosmead, sunrise is at 05:17 and sunset at 19:27. On the last day of the month, sunrise is at 05:44 and sunset at 19:21 SAST.
Sunshine
The average sunshine in January is 11.5h.UV index
The months with the highest UV index in Rosmead are January, February, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 6 during January translates into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What part of the year is the hottest in Rosmead?
How hot does it get in Rosmead in January?
What is the average humidity in January in Rosmead?
What is the wettest month in Rosmead?
How much does it rain in Rosmead in January?
When it does not snow in Rosmead?
What is the average length of the day in January in Rosmead?
What time are sunrise and sunset in January in Rosmead?
How long on average sun shines in January in Rosmead?
What is the month with the highest UV index in Rosmead?
What is the UV index intensity in January in Rosmead?
Average temperature in January
Rosmead, South Africa
- Average high temperature in January: 29.1°C
The warmest month (with the highest average high temperature) is January (29.1°C).
The months with the lowest average high temperature are June and July (16.8°C).
- Average low temperature in January: 16.8°C
The month with the highest average low temperature is February (17.1°C).
The coldest month (with the lowest average low temperature) is July (6.8°C).
Average pressure in January
Rosmead, South Africa
- Average pressure in January: 1012.6mbar
The month with the highest atmospheric pressure is July (1023.5mbar).
The month with the lowest atmospheric pressure is January (1012.6mbar).
Average wind speed in January
Rosmead, South Africa
- Average wind speed in January: 12.4km/h
The windiest month (with the highest average wind speed) is June (14.7km/h).
The calmest month (with the lowest average wind speed) is April (10.8km/h).
Average humidity in January
Rosmead, South Africa
- Average humidity in January: 53%
The month with the highest relative humidity is February (54%).
The month with the lowest relative humidity is September (42%).
Average rainfall in January
Rosmead, South Africa
- Average rainfall in January: 28mm
The wettest month (with the highest rainfall) is January (28mm).
The driest months (with the least rainfall) are May and August (4mm).
Average rainfall days in January
Rosmead, South Africa
- Average rainfall days in January: 9.6 days
The month with the highest number of rainy days is January (9.6 days).
The month with the least rainy days is June (2.9 days).
Average snowfall in January
Rosmead, South Africa
- Average snowfall in January: 0mm
The month with the highest snowfall is August (2mm).
The months with the least snowfall are January, February, March, April, May, June, July, September, October, November and December (0mm).
Average snowfall days in January
Rosmead, South Africa
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is August (0.3 days).
The months with the least snowfall days are January, February, March, April, May, June, July, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Rosmead, South Africa
- Average daylight in January: 13h and 5min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in January: 11h and 3min
The month with the most sunshine is November (Average sunshine: 11h and 42min).
The months with the least sunshine are June and July (Average sunshine: 7h and 18min).
Average sunshine days in January
Rosmead, South Africa
- Average sunshine days in January: 16.8 days
The months with the most sunshine days are May and July (26.3 days).
The month with the least sunshine days is February (14 days).
Average UV index in January
Rosmead, South Africa
- Average UV index in January: 6
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June, July and September (UV index 4).
Average cloud cover in January
Rosmead, South Africa
- Average cloud cover in January: 20
The months with the most cloud cover are January, February, October and December (Cloud cover 20).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in January
Rosmead, 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).
Rosmead, South Africa
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