Mauritius Weather Today: Heavy Swell Warning and Windy Day

Mauritius weather today (September 9, 2026) is all about waves, wind, and cooler temperatures, so if you’re planning a beach outing, take note, conditions are rough, especially at the coast. I’m Adam, and I’ve lived here a while, so let me walk you through what to expect, why it matters for your plans, and how to stay safe.

Key details for tourists

• Date of forecast: Wednesday, September 9, 2026
• Heavy swell warning: In force until 16:00 Thursday, September 10, 2026
• Max temperatures: 17, 22°C (Central Plateau), 23, 26°C (coasts)
• Min tonight: 14, 16°C (Central Plateau), 18, 21°C (coasts)
• Wind: Southeast, 30, 40 km/h, gusts up to 80 km/h in places
• Sea: Very rough, with waves 4, 6 metres high (dangerous for all boats and beaches!)
• High tide: 12:32 & 00:01; Low tide: 06:09 & 18:31
• Sunrise: 06:11 | Sunset: 18:03

What the weather means for your trip

Mauritius is in its Southern Hemisphere winter, which for most tourists is actually prime time for sightseeing and beach days. But today the strong anticyclone south-west of the Mascarenes is steering a burst of windy, colder, and showery weather across the island. It’s noticeably chillier than average, if you’re up in the Central Plateau, a light jacket or hoodie will be welcome, especially in the evenings.

Clouds and on-and-off rain are likely this morning, with the worst of the drizzle east, south, and up on the highlands. Coastal areas (like Grand Baie or Flic en Flac) will be warmer but still breezy. It will stay more unsettled tonight, especially over the high grounds and windward slopes, so if you booked an outdoor dinner or sunset cruise, time to rethink, see below.

Heavy swell warning: beach safety

This is the big one for tourists: The open sea will be very rough until at least Thursday afternoon, with swells up to six metres. The Mauritian authorities have flagged a real risk of tidal surges and even minor flooding along low coastal stretches in the west and south. No matter how tempting those waves look, do not swim, surf, or go boating today or tomorrow. Fishermen and pleasure boats are also strongly advised to stay in port. It’s best to keep away from the water’s edge during high tide as some paths and low-lying beach areas could be hit by bigger waves than usual.

If you’re here for excursions, swap island boat trips for inland sights or culture. For inspiration, check out the MauritiusEvents.com website, they’re a great organiser for last-minute programs that work even with unpredictable weather.

Practical advice for tourists

• Pack an extra layer! Even on the sunny coast, you’ll notice the breeze, and island evenings can get brisk, especially inland.
• Stay off the beaches during high tide and avoid the water until conditions improve (listen to local warnings).
• Planning a hike or day trip to the highlands? Take waterproofs for passing showers and check the latest bulletins at Mauritius Meteorological Services before you set out.
• If driving, expect strong crosswinds, especially near exposed mountain roads and overpasses. Slow down and keep both hands on the wheel, locals do.
• Sunrise and sunset are shifting a bit with the season: today they’re at 06:11 and 18:03, nice for early risers who want to catch the island waking up before the breeze picks up.

On days like this, I find the markets and museums livelier, and cafes in Port Louis or Mahébourg a good place to pause out of the wind. For best indoor plans, ask your hotel or browse upcoming events at MauritiusEvents.com.

Coastal conditions: what to expect

This isn’t one of those postcard-sunny days. Port Louis is partly cloudy and 23°C, Vacoas (up central) is wetter, around 18°C, and Plaisance (SSR Airport) sits at 22°C. Humidity’s running high, often over 70%, so even the cool air can feel a bit muggy. And thanks to those 4, 6 metre waves, you’ll see plenty of spray along the windward coasts.

If you’re still hoping for blue sky, keep an eye out for improvements after Thursday, but don’t risk a dip until the swell warning drops. For more weather info, see the official metservice.intnet.mu site.

Stay safe and enjoy your Mauritius adventure, just with a windbreaker and sensible shoes today!

Source: Mauritius Meteorological Services

Frequently Asked Questions