Today’s Weather Forecast – 21 August 2025

As we step into Thursday, 21 August 2025, South Africa is set to experience a pronounced variation in weather patterns across its diverse provinces. Today’s weather forecast indicates a mix of sunny spells, cloudy conditions, and some rainfall, particularly in the Western Cape. With fine weather prevailing in Gauteng and parts of the northeastern provinces, it’s a day full of contrasts that beckons outdoor activities and also necessitates caution in fire-prone areas.

Gauteng

Gauteng will enjoy delightful weather today with mostly sunny skies and very warm temperatures. In Johannesburg, the morning starts at a mild 14°C, gradually warming up to a peak of 26°C by mid-afternoon, followed by a clear and comfortable evening at 21°C. Pretoria, similarly, will experience pleasant conditions with temperatures ranging from 13°C in the early hours to a high of 27°C in the afternoon, making it ideal for outdoor plans. However, residents should remain aware of the very high fire danger rating across various areas in the province.

Western Cape

In stark contrast, Cape Town’s weather is less fortunate today. The city will start the day under cloudy skies with temperatures around 12°C. As the day unfolds, rainy conditions are expected to persist, reaching up to 17°C during lunchtime, followed by cooler temperatures of 14°C in the evening. Stellenbosch and George will experience similar conditions, with rainfall expected throughout the day. Motorists are advised to exercise caution on the roads due to potentially slippery conditions.

KwaZulu-Natal

Traveling towards KwaZulu-Natal, we find that the province will be cloaked in fog during the early morning hours, particularly in Durban where temperatures begin around 16°C. As the day progresses, sunny conditions will emerge with highs reaching 22°C by midday, transitioning to a cooler evening temperature of 19°C. Pietermaritzburg and Richards Bay will observe comparable weather patterns, with sunshine breaking through in the late morning.

Eastern Cape

The Eastern Cape is expected to see a mix of cloudy and partly cloudy periods. Port Elizabeth will have a cool start at 12°C, with temperatures only climbing to 18°C by noon. As we move into the evening, lingering clouds will keep the temperatures mild, around 16°C. East London and Mthatha will follow similar trends, warranting warm layers for any evening outings.

Free State

In the Free State, Bloemfontein will enjoy a bright day with clear skies. The temperature will range from a crisp 8°C in the morning, rising sharply to 22°C by midday, followed by a pleasant 17°C evening. This pattern will be consistent across the province, making it an inviting day for outdoor activities.

Limpopo and Mpumalanga

Limpopo and Mpumalanga will experience warm, sunny weather. Polokwane will kick off at 12°C, soaring to a comfortable 25°C by noon, while teams in Mbombela should anticipate a similar warming trend with temperatures reaching 24°C in the afternoon. Residents in both provinces are encouraged to stay hydrated and make the most of the clear, sunny skies.

North West

North West province will also bask in the sun today. Mahikeng will start at 11°C and heat up to 23°C, with pleasant temperatures continuing into the evening. Rustenburg and Klerksdorp will mirror this moderate heat, providing excellent conditions for outdoor recreational activities.

Northern Cape

Finally, in the Northern Cape, Kimberley will endure a mix of partly cloudy conditions with temperatures climbing from a cool 10°C to 24°C in the afternoon. Upington will be the warmest in the province, reaching 26°C, but caution is advised due to the extreme fire danger alerts in warmer regions.

Summary

In summary, today’s weather forecast for South Africa shows a diverse tapestry of weather across the provinces. While Gauteng weather offers warm and sunny conditions, Cape Town weather brings rain and cooler temperatures that require careful planning. As daylight fades, the remaining warmth will linger in many provinces, but fire risks are elevated, urging communities to stay informed. Make sure to dress adequately for your region, stay updated on local weather alerts, and if you’re in areas with rain, tread carefully.

For detailed and updated weather maps, please visit the South African Weather Service or follow updates on X (formerly Twitter). Enjoy the beautiful diversity of our country’s weather today!

Related: Today’s Weather Forecast – 20 August 2025