Johannesburg
Weather

Johannesburg weather is influenced by the city's distance from the sea as well as its altitude of 1753m. (5750 ft), resulting in arguably one of the best climates in the world.

Johannesburg weather is characterised by mild temperate days - warm and windless in summer and crisp and clear in winter

To see more detailed Johannebsurg weather, click on the Hour-by-Hour or 10-day links in the Weather.com temperature window below.

You can then select and check the weather conditions for :
Yesterday, Today, Hour-by-Hour, Tomorrow, the Weekend, a 10 Day forecast, weather for the Month as well as a Satellite map.

I've included the UV Index as the summer sun can be brutal!


The UV Index : is an international standard measurement indicating how much ultraviolet (UV) radiation you can expect from the sun, whilst in Johannesburg.

Its purpose is to help people protect themselves from the harmful UV light, which when excessive, can cause sunburn, eye damage such as cataracts, skin aging, and skin cancer.
If you feel you need medical advice, please go speak to your doctor.

0-2 : No danger to the average person
3-5 : Little risk of harm from unprotected sun exposure
6-7 : High risk of harm from unprotected sun exposure
8-10 : Very high risk of harm from unprotected sun exposure
11+ : Extreme risk of harm from unprotected sun exposure

If in doubt cover up - you never can be too careful!
An interesting snippet to remember is - when your shadow is shorter than you are tall, you need protection from the sun.

When the UV Index is showing high numbers, it's suggested you " ..... wear sunglasses and use SPF 15+ sunscreen, cover the body with a long-sleeve shirt and trousers, wear a very broad hat, and avoid the sun from two hours before to three hours after solar noon."

Geography : A cross section of South Africa from West to East, would look much like an upturned plate.
Starting with a coastal plain on the West coast, rising gradually to the Highveld, pronounced 'high-felt', and then dropping rapidly in the form of an escarpment to the Lowveld and the Kruger National Park, before reaching the coastal plain on the east coast.




Summer :
Johannesburg weather over the relatively dry Highveld (the high plateau of the eastern part of the country, where Jo'burg is situated) results in warm and windless days, with virtually no humidity from September through March.
Daily average temperatures are mild (26 deg. C), with some days reaching the low 30 degs. C.
Nights are cooler and on average, a pleasant 16 deg C.

Rainfall :
The rainy season is between September and April, and short, sharp showers usually fall during mid-afternoon, often accompanied by lightning and thunder and occasional hail, followed once again by sunshine.
Jo'burg's annual average rainfall of over 800mm is very similar to that of Perth, and more interestingly - London.

Winter :
This typically lasts June through August, when days are usually crisp and sunny with virtually no rain - except for occasional cold fronts, which are accompanied by drizzle, as they move in from the Antarctic.

But be warned!

Johannesburg weather during winter can be bleak with overnight frost, and although this is Africa, it can get bitterly cold!
Don't underestimate this, and make sure you pack your thick thermals and winter woolies.
On the night of Wednesday 16th June 2010 - during the FIFA World Cup, Johannesburg recorded its coldest temperature ever for the month of June!
Just before dawn, the mercury bottomed out at minus 3.2 deg. C.
According the the newspaper, The Star, some residents woke up to burst geysers, black frost and icy roads!
The previous coldest temperature for June, was minus 3 deg. C., recorded on the 30th June, 1994.

The air also becomes very, very dry, so don't leave out those moisturising creams when packing!

Snow has fallen 7 times in the last 50 odd years - the last time being on Tuesday 7th August 2012!











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