Weather: SNOW on the cards from Monday!
Copyright : Marian Vejcik (

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South Africans can expect a chilly start to the week as surface temperatures are expected to drop significantly on Monday, 25 May 2020 into Tuesday, according to the South African Weather Service…

Adding to the two recent snow events over the Eastern Cape and Lesotho, which included QwaQwa in the Free State during the second event, the mountains of the Western Cape and the extreme south-western areas of the Northern Cape are about to experience the first snow of 2020.

Intense cold front

The weather system responsible for the expected winter weather is an intense cold front which will be supported by a steep upper trough from Sunday night, 24 May 2020, bringing rain showers to the south-western areas of the Western Cape.


Ahead of this cold front, windy conditions are expected over most areas, with strong to gale force north-westerly winds (50-70m/h) over the interior of the Western Cape. Gale force winds can also be expected but are likely to be confined to the south-western and southern coasts of the Western and Eastern Cape respectively. Furthermore, very rough to high seas, with wave heights varying between 4.5 to 6.5 m can also be expected along the aforementioned coastline.

Cold daytime temps and potential for flooding

The frontal system will introduce wintry conditions on Monday, 25 May 2020 and bitterly cold daytime temperatures are expected to spread eastwards over the Cape provinces. Communities living in the extreme south-western areas of the Western Cape should also brace themselves for a combination of cold, strong gusty winds as well as moderate rainfall. Numeric modelling currently suggests rainfall of the order of 5 to 15 mm over parts of the Western Cape, while mountainous areas are likely to experience more significant falls, possibly 20 to 30 mm (refer Figure 1). There is also a potential for localised flooding in places.

Figure 1: 24 hour rainfall (mm) as projected by the ECMWF model for Monday 25 May 2020


Cold week ahead

Further afield, cold conditions are expected to set in over Lesotho, the Free State as well as the southern and south-western parts of North West province during the course of Monday.

On Tuesday, 26 May 2020, snowfall is expected to spread to the central and northern interior of the Eastern Cape (refer Figure 2). During Tuesday 26 May 2020, widespread bitterly cold daytime temperatures are expected over the entire interior, including the Cape provinces, Free State and southern KwaZulu-Natal (KZN) (refer Figure 3).

Even the southern parts of Gauteng are likely to be cold and windy on Tuesday. Snowfall is also likely to spread to include Lesotho, QwaQwa and the KZN Drakensberg mountains.

Refrain from travelling to see the snow

While many will be excited to see snow, the South African Weather Service nevertheless strongly encourages the public to refrain from travelling to snow sites amidst the Covid-19 pandemic and the current lockdown regulations.

Figure 2: Snow forecast (cm) for Monday 25 May 2020 (at left) and Tuesday 26 May 2020 (at right)., Source: ECMWF.


Temperatures are expected to recover gradually over the Cape provinces from Wednesday, 27 May 2020 onwards, although widespread morning frost could also be expected over the interior areas.

Figure 3: Predicted maximum temperature (deg. C) valid for Tuesday 26 May 2020. Source: ECMWF


Updated information in this regard will regularly be available at as well as via the SA Weather Service Twitter account @SAWeatherService.

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