Today’s Weather Forecast – 21-September-2025
As the vibrant season of spring unfolds, Gauteng is set to experience a remarkable Sunday fueled by sunshine and warmth. Today’s weather forecast shows a delightful mix of temperatures and conditions, making it a perfect day for outdoor adventures and family gatherings. Let’s dive into the specifics for Gauteng, highlighting what residents and visitors can expect across the region.
Morning Overview
As we begin our Sunday, temperatures across Gauteng are a pleasant 14°C to 16°C. The skies will be predominantly partly cloudy, providing a perfect backdrop for morning activities at parks and markets. Cities like Johannesburg and Pretoria will start their day under similar conditions, each boasting mild and comfortable temperatures that are typical for early spring.
Midday Excitement
By noon, Gauteng weather will take a warm turn, with temperatures soaring between 26°C and 31°C. Major cities such as Pretoria will see the mercury rising to 31°C under clear and sunny skies, creating ideal weather today for outdoor picnics or sporting events. Johannesburg isn’t far behind, with a peak temperature of 28°C, inviting locals to relish in the warmth. Remember to stay sun-safe; strong UV rays are expected during these afternoon hours.
Evening Transition
As the sun begins to descend, temperatures will gradually cool down to a cozy range of 19°C to 22°C. The skies will transition to mostly cloudy conditions, but there’s no threat of rain. This evening provides a great opportunity for family walks or casual dinners outdoors as you transition from the warmth of the day into the comfortable cooler night.
City Temperature Breakdown
- Johannesburg: 15°C ⛅ in the morning; 28°C ☀️ at noon; 20°C ☁️ in the evening
- Pretoria: 15°C ⛅; warming to a high of 31°C ☀️; cooling to 22°C ☁️
- Soweto: 14°C ⛅; peaking at 27°C ☀️; dropping to 20°C ☁️
- Centurion: 15°C ⛅; reaching a high of 29°C ☀️; falling to 21°C ☁️
- Midrand: 15°C ⛅; climbing to 28°C ☀️; evening cool down to 20°C ☁️
This pattern continues across the province, with cities like Benoni and Vanderbijlpark reflecting similar warming trends, ensuring that the weather today remains favorable for outdoor activities.
Practical Tips for the Day Ahead
- Morning: Layer your clothing as you head out; a light jacket is advisable for the cool start.
- Midday: Apply sunscreen generously and seek shade during the hottest parts of the day. Hydration is key, so keep your water bottle close.
- Evening: Bring a light wrap for cooler temperatures as you enjoy evening outings.
- General Awareness: Be mindful of the high UV index today, and plan your outdoor activities accordingly.
1. Gauteng Province Hourly Forecast (06:00 to 21:00)
| Location | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| Johannesburg | 14°C ⛅ | 18°C ☀️ | 22°C ☀️ | 23°C ☀️ | 19°C ⛆ | 16°C ☁️ |
| Pretoria | 13°C ⛅ | 19°C ☀️ | 23°C ☀️ | 24°C ☀️ | 20°C ⛆ | 17°C ☁️ |
| Soweto | 14°C ⛅ | 18°C ☀️ | 22°C ☀️ | 23°C ☀️ | 19°C ⛆ | 16°C ☁️ |
| Benoni | 13°C ⛅ | 18°C ☀️ | 22°C ☀️ | 23°C ☀️ | 19°C ⛆ | 16°C ☁️ |
| Centurion | 13°C ⛅ | 19°C ☀️ | 23°C ☀️ | 24°C ☀️ | 20°C ⛆ | 17°C ☁️ |
| Midrand | 14°C ⛅ | 18°C ☀️ | 22°C ☀️ | 23°C ☀️ | 19°C ⛆ | 16°C ☁️ |
| Alberton | 14°C ⛅ | 18°C ☀️ | 22°C ☀️ | 23°C ☀️ | 19°C ⛆ | 16°C ☁️ |
| Germiston | 13°C ⛅ | 18°C ☀️ | 22°C ☀️ | 23°C ☀️ | 19°C ⛆ | 16°C ☁️ |
| Vanderbijlpark | 13°C ⛅ | 18°C ☀️ | 22°C ☀️ | 23°C ☀️ | 19°C ⛆ | 16°C ☁️ |
| Krugersdorp | 13°C ⛅ | 18°C ☀️ | 22°C ☀️ | 23°C ☀️ | 19°C ⛆ | 16°C ☁️ |
Interpretation: Generally sunny to partly cloudy skies through the day with mild evening cloud cover. Temperatures rising from the low teens to mid-20s °C during the afternoon South African Weather Service.
2. Provincial Forecasts (06:00, 12:00, 18:00)
Western Cape
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Cape Town | 16°C ⛅ | 22°C ☀️ | 18°C ☁️ |
| Stellenbosch | 15°C ⛅ | 23°C ☀️ | 17°C ☁️ |
| George | 14°C ⛅ | 21°C ☀️ | 16°C ☁️ |
Notes: Mostly sunny with some morning clouds. Cool nights and warm afternoons typical for late September South African Weather Service.
KwaZulu-Natal
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Durban | 18°C ☁️ | 25°C ⛅ | 22°C ⛅ |
| Pietermaritzburg | 14°C ⛅ | 22°C ☀️ | 18°C ⛅ |
| Richards Bay | 17°C ⛅ | 24°C ☀️ | 20°C ☀️ |
Notes: Isolated thunderstorms possible, especially inland, but coastal areas mainly partly cloudy with warm temperatures South African Weather Service.
Eastern Cape
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Port Elizabeth | 16°C ⛅ | 23°C ☀️ | 19°C ⛅ |
| East London | 15°C ⛅ | 22°C ☀️ | 18°C ⛅ |
| Mthatha | 13°C 🌧️ | 18°C 🌧️ | 17°C 🌧️ |
Notes: Port Elizabeth and East London mostly clear with some clouds; more frequent showers and thunderstorms possible around Mthatha South African Weather Service.
Free State
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Bloemfontein | 13°C ⛅ | 22°C ☀️ | 18°C ⛅ |
| Welkom | 12°C ⛅ | 21°C ☀️ | 17°C ⛅ |
| Bethlehem | 11°C ⛅ | 20°C ☀️ | 17°C ⛅ |
Notes: Mainly sunny with isolated thunderstorms possible later, typical mild early spring temperatures South African Weather Service.
Limpopo
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Polokwane | 14°C ⛅ | 24°C ☀️ | 19°C ⛅ |
| Thohoyandou | 13°C ⛅ | 23°C ☀️ | 18°C ⛅ |
| Lephalale | 12°C 🌧️ | 19°C 🌧️ | 17°C 🌧️ |
Notes: Thunderstorms expected especially near Lephalale; other locations mainly sunny intervals South African Weather Service.
Mpumalanga
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Mbombela | 13°C ⛅ | 22°C ☀️ | 18°C ⛅ |
| Secunda | 12°C ⛅ | 21°C ☀️ | 17°C ⛅ |
| Emalahleni | 12°C ⛅ | 21°C ☀️ | 17°C ⛅ |
Notes: Warm with mainly sunny skies, some risk of isolated storms in the afternoon South African Weather Service.
North West
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Mahikeng | 12°C ⛅ | 22°C ☀️ | 17°C ⛅ |
| Rustenburg | 13°C ⛅ | 23°C ☀️ | 18°C ⛅ |
| Klerksdorp | 13°C ⛅ | 22°C ☀️ | 17°C ⛅ |
Notes: Dry and sunny day with mild temperatures South African Weather Service.
Northern Cape
| Location | 06:00 | 12:00 | 18:00 |
|---|---|---|---|
| Kimberley | 12°C ☀️ | 24°C ☀️ | 19°C ⛅ |
| Upington | 14°C ☀️ | 26°C ☀️ | 20°C ⛅ |
| Springbok | 11°C ☀️ | 23°C ☀️ | 18°C ⛅ |
Notes: Clear sunny skies but extremely high fire danger in many parts South African Weather Service.
In summary
Today’s weather forecast for Gauteng promises a delightful spring day filled with warmth and sunshine. As residents and visitors prepare to enjoy the outdoors, they should stay sun-smart and hydrated, especially during the midday heat. Whether you’re in Johannesburg, Pretoria, or any of the beautiful suburbs, the weather today invites you to embrace the season and revel in the charm that Gauteng has to offer. Let’s make the most of this splendid day!
For more detailed weather updates and forecasts, visit the South African Weather Service or follow their latest updates on X (formerly Twitter).
