The South African Weather Service has sounded a warning for rough seas and damaging winds from Tuesday, as a cold front begins to make its presence felt.
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A cold snap is looming over parts of South Africa this week, with temperatures set to drop sharply from Wednesday. Expect fine and cool conditions for Tuesday in most provinces, according to the South African Weather Service (SAWS).
Impact-based warnings
A yellow level 2 warning for damaging waves is expected between Saldanha Bay and Plettenberg Bay, resulting in difficulty in navigation at sea from Tuesday until Thursday evening.
A yellow level 1 warning for damaging winds is expected between Cape Point and Plettenberg Bay, resulting in difficulty in navigation at sea from Tuesday evening into Wednesday afternoon.
In the SAWS’ colour-coded weather warning system, yellow indicates a moderate risk of impact that requires caution and awareness, while orange indicates that a higher-risk impact is expected, requiring increased attention and preparation.
The SAWS uses the numbers to indicate the likelihood of weather-based impacts occurring. Levels 2 and 6 are high, and Level 4 is low.
Weather outlook for Tuesday & Wednesday, 17 - 18 June 2025.
Partly cloudy conditions are expected over the southern areas with isolated rain & showers along the south coast. Otherwise, fine & cool, but it will be warm in places in the north. #saws #weatheroutlook pic.twitter.com/U43kKQnnPQ
Advisories
Very cold conditions with daytime temperatures of 10 Degrees Celsius and below are expected in places over the interior of the Western Cape and Namakwa District (Northern Cape) from Wednesday through to Saturday.
The weather in your province
Gauteng: Fine and cool, but warm in the extreme north.
Pretoria: 6°C - 20°C
Johannesburg: 6°C - 20°C
Vereeniging: 3°C - 19°C
Mpumalanga: Fine and cold to cool, but warm in some Lowveld areas.
Mbombela: 9°C - 28°C
Ermelo: 4°C - 20°C
Emalahleni: 6°C - 21°C
Standerton: 4°C - 19°C
Skukuza: 12°C - 30°C
Limpopo: Fine and cold to cool, but warm on the Lowveld and Limpopo Valley.
Polokwane: 5°C - 19°C
Phalaborwa: 11°C - | 27°C
Tzaneen: 10°C - 23°C
Musina: 11°C - 26°C
Lephalale: 6°C - 23°C
Mokopane: 8°C - 20°C
North West: Fine and cool.
Klerksdorp: 4°C - 20°C
Potchefstroom: 4°C - 19°C
Mahikeng: 4°C - 20°C
Rustenburg: 5°C - 21°C
Vryburg: 2°C - 22°C
Free State: Fine and cool.
Bloemfontein: 2°C - 20°C
Welkom: 4°C - 20°C
Bethlehem: -1°C - 18°C
Northern Cape: Cloudy in the morning, becoming fine, windy and cool to warm. It will remain cold in the west.
Upington: 8°C - 24°C
Kimberley: 4°C - 21°C
De Aar: 5°C - 18°C
Alexander Bay: 11°C - 19°C
Springbok: 12°C - 15°C
Calvinia: 9°C - 14°C
Sutherland: -1°C - 13°C
Western Cape: Partly cloudy and cool to cold, but fine in the north-east. Cloudy skies with possible rain can be expected in the south and south-west.
Cape Town: 11°C - 14°C
Vredendal: 10°C - 19°C
Riversdale: 11°C - 17°C
George: 12°C - 15°C
Worcester: 10°C - 15°C
Beaufort West: 10°C - 16°C
Oudtshoorn: 8°C - 15°C
Western half of the Eastern Cape: Fine in the north, partly cloudy and cool elsewhere. Isolated showers are expected along the coast with cloudy conditions south of the escarpment in the morning.
Eastern half of the Eastern Cape: Fine and cool, but cold north of the escarpment. Partly cloudy conditions are expected in the far west.
Gqeberha: 15°C - 17°C
Makhanda: 10°C - 17°C
Cradock: 5°C - 21°C
Graaff-Reinet: 6°C - 19°C
East London: 15°C - 19°C
Port St Johns: 13°C - 21°C
Mthatha: 7°C - 21°C
Komani: 5°C - 19°C
Qonce: 10°C - 18°C
KwaZulu-Natal: Morning fog patches in the north-east, otherwise fine and cool to warm.
Durban: 14°C - 24°C
Richards Bay: 12°C - 25°C
Pietermaritzburg: 7°C - 23°C
Ladysmith: 0°C - 21°C
This weather report was written with the support of Toqan AI.