Today’s Weather Forecast – 21-August-2025
Gauteng Weather Overview
As the sun rises on Thursday, 21 August 2025, Gauteng welcomes another day of mostly pleasant and warm weather, indicative of the transitioning season. Today’s weather forecast brings a delightful mix of sunshine and mild temperatures, creating ideal conditions for outdoor activities across the province. With a high level of UV exposure expected at midday, it’s essential to prepare for a sunny day. Let’s delve into the specifics of Gauteng weather focusing on major cities and highlighting any key trends and conditions expected throughout the day.
Morning Outlook (06:00)
Gauteng will kick off the morning with cool temperatures ranging from 12°C to 14°C, accompanied by partly cloudy skies. City dwellers can expect a peaceful start, ideal for those venturing out early. Johannesburg and Soweto will start at around 12°C, while Pretoria is slightly warmer at 14°C, presenting perfect conditions for a morning jog or outdoor exercise.
Midday Trends (12:00)
As the day progresses into the afternoon, temperatures will rise substantially. The midday sun will prompt a warming trend, with Gauteng cities experiencing highs between 22°C and 28°C. Johannesburg and Pretoria will shine brightly under sunny skies, reaching 25°C and 28°C respectively. This beautiful weather today not only invites outdoor leisure but also necessitates precautions. Ensure to wear sunscreen and protective clothing when out and about, as the UV index will be significant.
Evening Transition (18:00)
As the evening approaches, temperatures will start cooling down to the range of 18°C to 20°C. The sky will become increasingly cloudy across the province, providing a softer, cooler backdrop for the evening. Although these conditions offer a break from the heat, it’s advisable to have a light jacket handy for those outdoor evening plans. Major cities such as Johannesburg and Pretoria will see temperatures drop to around 18°C and 20°C, respectively, setting a comfortable and mild atmosphere for the night ahead.
City Breakdown
- Johannesburg: Cool in the morning (12°C), warm and sunny at noon (25°C), then cloudy by evening (18°C).
- Pretoria: Slightly warmer, starting at 14°C, peaking at a sunny 28°C, and ending at 20°C under cloudy skies.
- Soweto, Benoni, Midrand: Similar weather trends with early temperatures around 12-13°C, climbing to the low- to mid-20s by noon, and cooling in the evening.
- Centurion, Germiston, Vanderbijlpark: All cities will experience comfortable conditions with a modest range of temperatures from 12°C to 24°C at their peak midday.
While Gauteng enjoys a mostly sunny day, let’s not forget the rest of the country. Cape Town weather will present a different scenario, with a mix of partly cloudy conditions and mild temperatures later in the day. Coastal regions may experience cooler, breezier weather, while inland areas warm up under the clear skies.
1. Gauteng Province Hourly Forecast (°C and Weather)
| Location | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| Johannesburg | 12°C ⛅ | 15°C ☀️ | 22°C ☀️ | 25°C ☀️ | 20°C ⛅ | 17°C ☁️ |
| Pretoria | 14°C ⛅ | 18°C ☀️ | 25°C ☀️ | 28°C ☀️ | 22°C ⛅ | 19°C ☁️ |
| Soweto | 13°C ⛅ | 16°C ☀️ | 23°C ☀️ | 26°C ☀️ | 21°C ⛅ | 18°C ☁️ |
| Benoni | 13°C ⛅ | 16°C ☀️ | 23°C ☀️ | 26°C ☀️ | 21°C ⛅ | 18°C ☁️ |
| Centurion | 14°C ⛅ | 18°C ☀️ | 25°C ☀️ | 27°C ☀️ | 22°C ⛅ | 19°C ☁️ |
| Midrand | 13°C ⛅ | 16°C ☀️ | 23°C ☀️ | 26°C ☀️ | 21°C ⛅ | 18°C ☁️ |
| Alberton | 13°C ⛅ | 16°C ☀️ | 23°C ☀️ | 26°C ☀️ | 21°C ⛅ | 18°C ☁️ |
| Germiston | 13°C ⛅ | 16°C ☀️ | 23°C ☀️ | 26°C ☀️ | 21°C ⛅ | 18°C ☁️ |
| Vanderbijlpark | 12°C ⛅ | 15°C ☀️ | 22°C ☀️ | 25°C ☀️ | 20°C ⛅ | 17°C ☁️ |
| Krugersdorp | 12°C ⛅ | 15°C ☀️ | 22°C ☀️ | 25°C ☀️ | 20°C ⛅ | 17°C ☁️ |
Conditions: Mostly sunny and warm throughout the day with partly cloudy skies in the morning and evening, UVB sunburn risk is high.
Provincial Forecasts
Western Cape
The Western Cape will experience a marked contrast to Gauteng’s sunny disposition. A cold front will bring damp and windy weather, especially in the southwestern regions. Residents should prepare for a mix of showers, especially in the afternoon, though conditions are expected to improve towards the evening.
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Cape Town | 12°C ☁️ | 18°C 🌧️ | 15°C ⛅ |
| Stellenbosch | 11°C ☁️ | 17°C 🌧️ | 14°C ⛅ |
| George | 10°C ☁️ | 16°C 🌧️ | 13°C ⛅ |
Notes: Cold front causes cold, wet, and windy weather especially in the southwestern parts until the afternoon. Conditions improve along the south coast by evening.
KwaZulu-Natal
Kwazulu-Natal will see a mix of conditions, with fog in some areas giving way to pleasant weather. It may be a good day for outdoor activities with the family, especially during the afternoon when temperatures rise.
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Durban | 14°C 🌫️ | 21°C ☀️ | 18°C ⛅ |
| Pietermaritzburg | 12°C 🌫️ | 20°C ☀️ | 17°C ⛅ |
| Richards Bay | 15°C 🌫️ | 22°C ☀️ | 19°C ⛅ |
Notes: Morning fog in some interior places, otherwise fine and cool to warm with partly cloudy conditions developing later. UV index very high.
Eastern Cape
In the Eastern Cape, anticipate a cool start to the day, potentially accompanied by fog. Temperatures will rise as the day progresses, offering an overall pleasant climate for outdoor events and gatherings.
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Port Elizabeth | 10°C 🌫️ | 18°C ⛅ | 16°C ☁️ |
| East London | 11°C 🌫️ | 18°C ⛅ | 16°C ☁️ |
| Mthatha | 9°C ⛅ | 17°C ⛅ | 15°C ☁️ |
Notes: Morning fog and light rain in some western interior areas; otherwise, fine and cool with partly cloudy conditions.
Free State
The Free State region will provide generally fine weather with cool to warm temperatures suited for both outdoor relaxation and physical activities. Enjoying the sunshine will be a delightful option throughout the day.
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Bloemfontein | 6°C ☀️ | 18°C ☀️ | 14°C ⛅ |
| Welkom | 9°C ☀️ | 21°C ☀️ | 17°C ⛅ |
| Bethlehem | 7°C ☀️ | 18°C ☀️ | 14°C ⛅ |
Notes: Generally fine and cool to warm with no significant precipitation.
Limpopo
Expect warm to hot conditions in Limpopo, perfect for anyone looking to enjoy the outdoors. Rising temperatures throughout the day provide ideal conditions for leisure activities.
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Polokwane | 14°C ☀️ | 28°C ☀️ | 22°C ⛅ |
| Thohoyandou | 16°C ☀️ | 30°C ☀️ | 23°C ⛅ |
| Lephalale | 13°C ☀️ | 32°C ☀️ | 24°C ⛅ |
Notes: Fine and warm to hot conditions, fire danger is high in some southern parts.
Mpumalanga
Mpumalanga will start with a cool morning that rapidly warms up to hot temperatures by midday. The weather is typically conducive to enjoying outdoor activities, especially in the afternoon.
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Mbombela | 12°C 🌫️ | 35°C ☀️ | 28°C ⛅ |
| Secunda | 10°C ☀️ | 26°C ☀️ | 22°C ⛅ |
| Emalahleni | 10°C ☀️ | 26°C ☀️ | 22°C ⛅ |
Notes: Morning fog in Lowveld, otherwise fine and warm to hot.
North West
In the North West province, a fine and warm day is anticipated, with isolated scattered showers possibly developing later in the day.
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Mahikeng | 10°C ☀️ | 29°C ☀️ | 22°C ⛅ |
| Rustenburg | 12°C ☀️ | 30°C ☀️ | 23°C ⛅ |
| Klerksdorp | 9°C ☀️ | 27°C ☀️ | 21°C ⛅ |
Notes: Fine and warm with isolated showers and thundershowers except in the northeast.
Northern Cape
The Northern Cape will enjoy fine and warm weather, although residents should remain cautious of morning fog and partly cloudy skies later on.
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Kimberley | 11°C ☀️ | 29°C ☀️ | 22°C ⛅ |
| Upington | 10°C ☀️ | 32°C ☀️ | 24°C ⛅ |
| Springbok | 8°C ☀️ | 25°C ☀️ | 20°C ⛅ |
Notes: Fine and warm with some morning fog and partly cloudy skies in the west.
Today’s weather forecast for Gauteng indicates delightful conditions well-suited for outdoor engagements. With comfortable morning temperatures, sunny afternoons, and cooler evenings under cloudy skies, residents are encouraged to leverage the beautiful weather today. Importantly, remember to take precautions against the sun when outdoors, as the midday rays could be intense. With no rain forecasted, it’s a perfect opportunity to enjoy the outdoors. Stay safe, hydrated, and embrace all that today’s conditions have to offer!
For more detailed forecasts and updates, visit the South African Weather Service or follow them on X.
