Weather Alert: South Africa Faces Extreme Heat and Coastal Dangers on Friday, 22 August 2025
South Africans should prepare for intense weather on 22 August 2025. Extreme heat will grip many provinces, especially in the northeast. Meanwhile, dangerous waves will affect the coast. This article provides up-to-date weather warnings to keep you safe. It explains the risks and offers tips to protect against heat and coastal hazards.
SEE FULL FORECAST: Today’s Weather Forecast – Friday, 22 August 2025
Table of contents
- What’s Causing the Extreme Heat?
- Where Is the Heatwave Most Dangerous?
- Rain and Cool Weather in the Southwest
- Coastal Areas Should Prepare for Dangerous Waves
- Weather by Province: What to Expect on 22 August
- How Heatwaves Affect Your Health
- Fire Safety Tips During High Danger
- What Coastal Residents Should Do
- Stay Updated with Reliable Sources
What’s Causing the Extreme Heat?
A strong high-pressure system is causing very hot and dry conditions across northeastern South Africa. This system traps warm air close to the ground. It pushes temperatures above 30°C in Limpopo, Mpumalanga, the Free State, and North West. The heat increases wildfire risks in these regions.
Where Is the Heatwave Most Dangerous?
The heatwave affects several provinces with very high fire danger. These include:
- Northern Cape (northeast)
- North West
- Eastern Free State
- Northeastern Eastern Cape
- Northern KwaZulu-Natal
- Limpopo
- Mpumalanga
Local authorities warn that fires could start easily and spread quickly. Dry, windy conditions make this worse. People should avoid open flames and check smoke warnings closely.
Rain and Cool Weather in the Southwest
While the northeast is hot, the southwestern Western Cape will see cooler weather. A cold front brings scattered showers and wind. This area has had several cold fronts lately. The cooler air is a break from recent warm weather but will bring strong winds.
Coastal Areas Should Prepare for Dangerous Waves
The South African Weather Service (SAWS) has issued a Yellow Level 2 warning for rough seas. Large waves of 4 to 6 meters are expected between Lambert’s Bay and Plettenberg Bay. The warning covers:
- Friday night to Sunday evening
- Coastal regions from Alexander Bay down to Plettenberg Bay
These waves could damage coastal structure and disrupt small boats. Swimmers and beach visitors should stay away from rocks and avoid entering the sea.
Weather by Province: What to Expect on 22 August
Gauteng
Warm and dry conditions will continue. The sun will be strong, so use sunscreen and drink plenty of water.
Mpumalanga
Warm temperatures with morning fog in some areas. Take care in the heat and drive carefully in foggy spots.
Limpopo
Expect very hot weather exceeding 30°C. Stay indoors during peak heat hours and keep hydrated.
North West
Dry and warm with high fire risk in grasslands. Do not light fires or discard cigarettes outdoors.
Northern Cape
Northeastern areas face extreme fire danger. The southwest will be cooler with light drizzle.
Western Cape
Cooler with showers and strong winds. Protect outdoor items from the wind.
Eastern Cape
Morning fog in the west. Isolated showers expected in the east. Dress in layers for changing conditions.
KwaZulu-Natal
Cloudy with isolated rain showers. Coastal winds will increase, making marine activities risky.
Free State
Windy with cooler temperatures in the south but still warm elsewhere.
How Heatwaves Affect Your Health
Heatwaves can cause serious health problems like heat exhaustion and heatstroke. Symptoms include dizziness, headaches, and weakness. Protect yourself by:
- Drinking lots of water
- Avoiding direct sunlight during midday
- Wearing light, loose clothing
- Taking breaks in shaded or cool areas
The heatwave is expected to last until at least 26 August, so stay vigilant.
Fire Safety Tips During High Danger
With wildfire risk very high in some regions, follow these safety tips:
- Avoid burning waste or lighting fires outdoors
- Report smoke or fire immediately to local authorities
- Keep firebreaks clear around your home
- Follow advice from emergency services
What Coastal Residents Should Do
If you live near the coast from Lambert’s Bay to Plettenberg Bay:
- Avoid rocky shorelines and low-lying areas during the warning period
- Do not swim or surf in dangerous wave conditions
- Secure boats and outdoor furniture
- Monitor updates from SAWS and local weather reports
Stay Updated with Reliable Sources
Weather conditions can change quickly. Visit the South African Weather Service website regularly for the latest warnings and updates. Reliable weather information helps you prepare and stay safe in hazardous conditions.
Extreme heat and coastal hazards pose real dangers to many South Africans this week. Taking precautions with heat and respecting coastal warnings can protect lives and property. Stay hydrated, avoid fire risks, and be cautious near the ocean.
