South Africans can expect a range of marine weather concerns on Monday, 7 June 2025, particularly along the southern coastline. The broader inland regions are set for fine and dry conditions, as a high-pressure system dominates, maintaining cold morning temperatures and clearer skies.
Weather warnings issued for Monday, 7 July 2025
- Yellow Level 2: Damaging Waves – This alert is active from Cape Agulhas to Plettenberg Bay during the morning hours. Mariners and beachgoers are warned of challenging sea conditions that could hinder navigation. Waves of significant height may threaten smaller boats, causing difficulty in control and a risk of capsizing. Coastal cities such as Hermanus and Mossel Bay fall within this warning zone.
- Yellow Level 2: Damaging Winds and Waves – From Plettenberg Bay to Kei Mouth, a combined threat of wind and wave activity poses risk for small vessels. Strong onshore winds may result in watercraft taking on water or anchors dragging, especially in more exposed harbours and coastal inlets such as Port Alfred and East London. The alert calls for caution and the postponement of non-essential marine operations.
While the inland areas enjoy largely stable and dry weather, the lingering impact of successive cold fronts earlier in the month continues to affect the coastal regions.
With moderate sea conditions and post-frontal instability, localised marine hazards persist into early morning before gradually subsiding.
From a seasonal perspective, the Seasonal Climate Watch (June–October 2025) notes a neutral ENSO state, with above-normal winter rainfall expected for the southern and eastern coastal areas during mid-winter. Inland, temperatures are forecast to be above-normal for most of the country, with cold spells largely confined to southern coastal regions.
Decision-makers in marine operations and coastal infrastructure are urged to remain alert for ongoing storm surges and associated wind events.
