January weather forecast
Stormsvlei, South Africa

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Weather in January

January, the same as December, is a moderately hot summer month in Stormsvlei, South Africa, with an average temperature varying between 28.1°C (82.6°F) and 14.8°C (58.6°F).

Temperature

The initiation of January sees an average high-temperature of a still moderately hot 28.1°C (82.6°F), showing minor variations from the previous month. Stormsvlei documents a substantial shift from daytime warmth, recording an average nighttime temperature of 14.8°C (58.6°F) in January.

Heat index

In January, the average heat index is calculated to be a tropical 30°C (86°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

The average relative humidity in January in Stormsvlei is 60%.

Rainfall

In Stormsvlei, South Africa, in January, during 6.6 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, there are 101.2 rainfall days, and 310mm (12.2") of precipitation is accumulated.

Daylight

In January, the average length of the day in Stormsvlei is 14h and 7min.
On the first day of January, sunrise is at 05:31 and sunset at 19:54. On the last day of the month, sunrise is at 05:59 and sunset at 19:46 SAST.

Sunshine

In Stormsvlei, the average sunshine in January is 11.4h.

UV index

January, February and December, with an average maximum UV index of 6, are months with the highest UV index in Stormsvlei, South Africa. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 in January interprets into the following advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. 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. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

Is it hot in Stormsvlei during January?

During January, Stormsvlei experiences an average high-temperature of 28.1°C (82.6°F) and a low-temperature of 14.8°C (58.6°F). In January, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 30°C (86°F).

What is the average humidity in January in Stormsvlei?

In January, the average relative humidity in Stormsvlei, South Africa, is 60%.

How much does it rain in Stormsvlei in January?

In Stormsvlei, in January, it is raining for 6.6 days, with typically 19mm (0.75") of accumulated precipitation.

How many hours of daylight does Stormsvlei have in January?

In January, the average day length in Stormsvlei is 14h and 7min.

What time are sunrise and sunset in January in Stormsvlei?

On the first day of January in Stormsvlei, South Africa, sunrise is at 05:31 and sunset at 19:54. On the last day of the month, sunrise is at 05:59 and sunset at 19:46 SAST.

How many hours of sunshine does Stormsvlei have in January?

The average sunshine duration in January is 11.4h.

What is the month with the highest UV index in Stormsvlei?

January, February and December, with an average maximum UV index of 6, are months with the highest UV index in Stormsvlei.

What is the UV index intensity in January in Stormsvlei?

The average daily maximum UV index in January in Stormsvlei, South Africa, is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

Average temperature in January
Stormsvlei, South Africa

Average temperature in January - Stormsvlei, South Africa
  • Average high temperature in January: 28.1°C

The warmest month (with the highest average high temperature) is February (28.3°C).
The month with the lowest average high temperature is June (15.1°C).

  • Average low temperature in January: 14.8°C

The month with the highest average low temperature is February (14.9°C).
The coldest month (with the lowest average low temperature) is August (5.1°C).

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Average pressure in January
Stormsvlei, South Africa

Average pressure in January - Stormsvlei, South Africa
  • Average pressure in January: 1013.2mbar

The month with the highest atmospheric pressure is July (1022.2mbar).
The month with the lowest atmospheric pressure is February (1013.1mbar).

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Average wind speed in January
Stormsvlei, South Africa

Average wind speed in January - Stormsvlei, South Africa
  • Average wind speed in January: 10.6km/h

The windiest month (with the highest average wind speed) is November (10.8km/h).
The calmest month (with the lowest average wind speed) is April (9.3km/h).

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Average humidity in January
Stormsvlei, South Africa

Average humidity in January - Stormsvlei, South Africa
  • Average humidity in January: 60%

The month with the highest relative humidity is August (72%).
The month with the lowest relative humidity is February (59%).

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Average rainfall in January
Stormsvlei, South Africa

Average rainfall in January - Stormsvlei, South Africa
  • Average rainfall in January: 19mm

The wettest month (with the highest rainfall) is June (66mm).
The driest month (with the least rainfall) is February (8mm).

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Average rainfall days in January
Stormsvlei, South Africa

Average rainfall days in January - Stormsvlei, South Africa
  • Average rainfall days in January: 6.6 days

The month with the highest number of rainy days is June (11.7 days).
The month with the least rainy days is February (5.5 days).

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Average daylight in January /
Average sunshine in January
Stormsvlei, South Africa

Average daylight in January / Average sunshine in January - Stormsvlei, South Africa
  • Average daylight in January: 14h and 1min

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).

  • Average sunshine in January: 11h and 2min

The month with the most sunshine is December (Average sunshine: 11h and 30min).
The month with the least sunshine is June (Average sunshine: 6h and 6min).

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Average sunshine days in January
Stormsvlei, South Africa

Average sunshine days in January - Stormsvlei, South Africa
  • Average sunshine days in January: 20.9 days

The month with the most sunshine days is March (21.6 days).
The month with the least sunshine days is June (15.7 days).

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Average UV index in January
Stormsvlei, South Africa

Average UV index in January - Stormsvlei, South Africa
  • Average UV index in January: 6

The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are June and July (UV index 3).

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Average cloud cover in January
Stormsvlei, South Africa

Average cloud cover in January - Stormsvlei, South Africa
  • Average cloud cover in January: 18

The month with the most cloud cover is June (Cloud cover 33).
The month with the least cloud cover is February (Cloud cover 17).

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Average visibility in January
Stormsvlei, South Africa

Average visibility in January - Stormsvlei, South Africa
  • Average visibility in January: 10km

The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (9km).

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Stormsvlei, South Africa

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