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
January observes an average high-temperature of a still moderately hot 27°C (80.6°F), marking an insignificant difference from December's 25.9°C (78.6°F). The January average low temperature, marginally lower than the daytime high, records at a pleasant 22.3°C (72.1°F).Heat index
The heat index for January is calculated to be a tropical 30°C (86°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.The standards for the heat index are set for locations in shade and under light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
In January, the average relative humidity is 79%.Rainfall
In Heatonville, in January, during 22.3 rainfall days, 83mm (3.27") of precipitation is typically accumulated. Throughout the year, in Heatonville, South Africa, there are 195.5 rainfall days, and 707mm (27.83") of precipitation is accumulated.Daylight
In January, the average length of the day is 13h and 44min.On the first day of January, sunrise is at 04:58 and sunset at 18:54. On the last day of the month, sunrise is at 05:22 and sunset at 18:49 SAST.
Sunshine
In Heatonville, the average sunshine in January is 8.3h.UV index
The month with the highest UV index is January, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 7 in January translates into the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures in Heatonville?
What is the average humidity in January in Heatonville?
How much does it rain in Heatonville in January?
What is the average length of the day in January in Heatonville?
What time are sunrise and sunset in January in Heatonville?
How many hours of sunshine does Heatonville have in January?
When is the highest UV index in Heatonville?
What is the UV index intensity in January in Heatonville?
Average temperature in January
Heatonville, South Africa
- Average high temperature in January: 27°C
The warmest month (with the highest average high temperature) is February (27.3°C).
The month with the lowest average high temperature is July (22.3°C).
- Average low temperature in January: 22.3°C
The month with the highest average low temperature is February (22.6°C).
The coldest month (with the lowest average low temperature) is July (16.7°C).
Average pressure in January
Heatonville, South Africa
- Average pressure in January: 1013.7mbar
The month with the highest atmospheric pressure is July (1023.1mbar).
The month with the lowest atmospheric pressure is January (1013.7mbar).
Average wind speed in January
Heatonville, South Africa
- Average wind speed in January: 19km/h
The windiest month (with the highest average wind speed) is October (22km/h).
The calmest month (with the lowest average wind speed) is May (17.1km/h).
Average humidity in January
Heatonville, South Africa
- Average humidity in January: 79%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is June (66%).
Average rainfall in January
Heatonville, South Africa
- Average rainfall in January: 83mm
The wettest month (with the highest rainfall) is December (98mm).
The driest month (with the least rainfall) is June (22mm).
Average rainfall days in January
Heatonville, South Africa
- Average rainfall days in January: 22.3 days
The month with the highest number of rainy days is December (22.8 days).
The month with the least rainy days is June (8.6 days).
Average daylight in January /
Average sunshine in January
Heatonville, South Africa
- Average daylight in January: 13h and 4min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in January: 8h and 2min
The month with the most sunshine is February (Average sunshine: 8h and 54min).
The month with the least sunshine is April (Average sunshine: 6h and 0min).
Average sunshine days in January
Heatonville, South Africa
- Average sunshine days in January: 5.8 days
The month with the most sunshine days is June (19.5 days).
The month with the least sunshine days is January (5.8 days).
Average UV index in January
Heatonville, South Africa
- Average UV index in January: 7
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are June, July, September and October (UV index 5).
Average cloud cover in January
Heatonville, South Africa
- Average cloud cover in January: 49
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 20).
Average visibility in January
Heatonville, South Africa
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
Heatonville, South Africa
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