Severe thunderstorms, disruptive rain, damaging wind and a heat wave on Friday

By Staff Writer
Published: 3 April 2025 [updated 4 April]

This forecast is for: Fri 04 April 2025
The maps cover: Fri 04 Apr – Sun 06 Apr

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Hot to very hot and uncomfortable conditions are expected over the interior of Namakwa, City of Cape Town, West Coast, and Cape Winelands Districts until Sunday, according to the SA Weather Service.

In addition, heatwave conditions are expected over Saldanha Bay, Swartland and parts of the City of Cape Town municipality until Sunday.

A low pressure system could result in disruptive rain along the south-east coast between East London and Port Edward Saturday into Sunday.

Warnings from the SA Weather Service for Friday:

A. yellow level 2 warning severe thunderstorms over parts of the Northern Cape, as per the updated map above.

B. yellow level 1 warning disruptive rain over parts of North West, the Free State, Mpumalanga, KwaZulu-Natal and the Eastern Cape as per the updated map above.

C. yellow level 1 warning damaging wind along parts of the Eastern Cape coast, as per the updated map above.

A. yellow level 1 warning severe thunderstorms over parts of the Eastern Cape, as per the updated map above.

Regional forecasts from SAWS for Friday:

1. GAUTENG
Cloudy and cool with scattered showers and thundershowers but isolated in the north.
The expected UVB sunburn index: Low

2. MPUMALANGA
Cloudy and cold to cool with isolated showers and thundershowers but scattered in the south and the escarpment areas.

3. LIMPOPO
Cloudy and cool to warm with isolated showers and thundershowers in the south and the escarpment areas.

4. NORTH-WEST PROVINCE
Cloudy, windy and cool, with scattered to widespread showers and thundershowers.

5. FREE STATE
Cloudy, windy and cool, with scattered to widespread showers and thundershowers.

6. NORTHERN CAPE
Morning fog in places along the coastline, otherwise fine becoming partly cloudy and cool to warm but cloudy in the east with with isolated to scattered showers and thundershowers, and widespread in the extreme east. The wind along the coast will be light to moderate south-westerly.

7. WESTERN CAPE
Morning and evening fog patches along the west coast, otherwise partly cloudy and warm to hot with isolated showers and thundershowers over the eastern interior. It will be very hot in places in the west. The wind along the coast will be moderate to fresh north-westerly to westerly, but fresh to strong easterly along the south-west and south coast.
The expected UVB sunburn index: Very High

8. WESTERN HALF OF THE EASTERN CAPE
Cloudy and cool with scattered showers and thundershowers, but isolated along the coast and adjacent interior. The wind along the coast will be light to moderate easterly.

9. EASTERN HALF OF THE EASTERN CAPE
Cloudy and cool with scattered showers and thundershowers, but widespread in the north.
The wind along the coast will be light to moderate north-easterly, becoming fresh easterly in the afternoon.

10. KWAZULU-NATAL
Morning fog over the interior, otherwise cloudy and cold to cool with scattered showers and thundershowers, but isolated in the extreme north-east. The wind along the coast will be moderate easterly to south-easterly south of Richards Bay, otherwise fresh to strong north-easterly, becoming near-gale south of Durban in the evening.
The expected UVB sunburn index: Moderate

Travellers forecasts from SAWS for Friday:

PRETORIA
Cloudy with isolated showers and thundershowers.
Minimum/Maximum: 16/21°C
The expected UVB Sunburn Index: Low

JOHANNESBURG
Cloudy with scattered showers and thundershowers.
Minimum/Maximum: 15/18°C

VEREENIGING
Cloudy with scattered showers and thundershowers.
Minimum/Maximum: 15/18°C

MBOMBELA
Cloudy with scattered showers and thundershowers.
Minimum/Maximum: 17/20°C

POLOKWANE
Cloudy with isolated showers and thundershowers.
Minimum/Maximum: 16/21°C

MAHIKENG
Cloudy, windy with widespread showers and thundershowers.
Minimum/Maximum: 16/19°C

VRYBURG
Cloudy, windy with widespread showers and thundershowers.
Minimum/Maximum: 17/18°C

BLOEMFONTEIN
Cloudy, windy with widespread showers and thundershowers.
Minimum/Maximum: 15/18°C

KIMBERLEY
Cloudy, with widespread showers and thundershowers.
Minimum/Maximum: 16/22°C

UPINGTON
Cloudy, windy with isolated showers and thundershowers.
Minimum/Maximum: 19/25°C

CAPE TOWN
Partly cloudy.
Wind: Light to moderate south-westerly.
Minimum/Maximum: 18/29°C
The expected UVB Sunburn Index: Very High

GEORGE
Partly cloudy becoming cloudy in the afternoon.
Wind: Light to moderate north-westerly becoming variable by the afternoon, but south-easterly from the evening.
Minimum/Maximum: 16/24°C

GQEBERHA
Partly cloudy becoming cloudy with isolated showers and rain.
Wind: Light easterly, becoming moderate to fresh in the afternoon.
Minimum/Maximum: 15/24°C

EAST LONDON
Partly cloudy, becoming cloudy with scattered showers and thundershowers.
Wind: Light to moderate north-easterly, becoming fresh easterly in the afternoon.
Minimum/Maximum: 16/24°C

DURBAN
Cloudy with scattered showers and rain.
Wind: Moderate to fresh northerly to north-easterly, becoming strong in the afternoon.
Minimum/Maximum: 21/24°C
The expected UVB Sunburn Index: Moderate

RICHARDS BAY
Cloudy with isolated showers and rain.
Wind: Moderate to fresh northerly to north-easterly, becoming strong in the evening.
Minimum/Maximum: 20/24°C

PIETERMARITZBURG
Morning fog, otherwise cloudy with scattered showers and thundershowers.
Minimum/Maximum: 15/20°C

This forecast is usually updated a few times per day.

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