South Africa’s weather on Friday, 18 July 2025, will be shaped by the lingering effects of a cold front, with partly cloudy to overcast skies in many areas and isolated rainfall across parts of the country.
Weather today: Overview of expected conditions
Very cold conditions are forecast over the north-eastern parts of the Eastern Cape, while fine and warmer conditions will persist in the north-western interior.
A high UVB sunburn index is expected in several inland locations. Notably, rough sea conditions continue along the coastlines, prompting marine advisories.
Weather warnings issued for Friday, 18 July 2025
The South African Weather Service (SAWS) has issued the following weather alerts:
- Yellow Level 2 Warning – Damaging Waves:
- Areas affected: Coastal regions between Alexander Bay and East London.
- Impact: The warning highlights potentially hazardous marine conditions. Small boats and vessels in these waters may struggle with high waves and strong currents, increasing the risk of capsizing or taking on water. This alert level indicates a moderate threat to marine safety and calls for heightened vigilance among coastal operators and communities in these zones.
Additional forecast advisories:
- Very cold conditions: Expected over the north-eastern parts of the Eastern Cape, which includes mountainous and high-lying areas. These conditions may pose a risk to vulnerable populations and livestock, especially in rural and farming communities.
City-specific highlights:
- Durban and Richards Bay: Cloudy with scattered showers and rain, along with moderate to fresh southerly winds. These conditions may impact travel and outdoor plans.
- Cape Town: Overcast skies will prevail with temperatures ranging between 10°C and 16°C.
- Johannesburg and Pretoria: Partly cloudy with maximum temperatures of 22°C and 23°C, respectively.
- Mbombela: Drizzle developing by evening, with temperatures peaking at 23°C.
Residents are urged to follow local updates and heed safety advice, especially in coastal and cold-affected inland regions.