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Mauritius is currently facing hazardous marine conditions, with the Meteorological Station of Vacoas maintaining a high swell warning in effect until 10 a.m. on Wednesday, 20 August 2025. The alert, issued on Monday, 18 August, urges the public to exercise extreme caution, particularly along the western and southern coastlines.
Meteorologists have warned that waves could rise to a dangerous height of up to four metres, especially during high tides. Low-lying coastal areas—especially in the west and south—are most vulnerable to the heavy swells, which may result in coastal flooding and hazardous conditions along beaches and lagoons.
These powerful sea swells are being driven by a frontal system approaching from the southwest, closely followed by a strong anticyclone. This atmospheric combination is contributing not only to the tumultuous seas but also to unstable weather across parts of the island. The prevailing weather system is also bringing intermittent rainfall, which will mostly affect the southern regions and the central plateau. Meanwhile, residents can expect cooler-than-normal temperatures throughout the country, ranging from 19°C to 21°C on the central plateau, 23°C to 26°C in coastal regions, and nighttime lows between 14°C and 16°C in the highlands, and 18°C to 20°C along the coast.
Winds that were light and variable earlier in the day are forecast to intensify, blowing from the southeast at around 25 km/h, with gusts potentially reaching 50 km/h during the day. Wind strength is expected to increase further overnight, heightening the risk for those near the ocean or on elevated terrain. In light of these dangerous conditions, local authorities have issued a stern warning to residents and visitors alike. Fishermen, recreational boaters, and beachgoers are strongly advised to avoid the sea and coastal areas until the swell warning is officially lifted.
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The public is urged to stay informed via official channels and to follow guidance from meteorological and emergency services. Avoiding the coastline and postponing any planned sea activities could be crucial for ensuring safety during this period of turbulent weather.
