Pleasant and full of change, Mauritius’s weather in September marks the island’s gentle shift from winter into spring. Temperatures slowly begin to rise, the skies brighten, and the beaches stay beautifully quiet. This is the start of one of the most comfortable travel periods of the year—less rain, milder air, and plenty of sunshine.
September offers a delightful mix of dry weather and warming conditions across all regions of the island. Whether you’re planning coastal walks, snorkeling trips, or cultural excursions, you’ll find the island welcoming and calm.

Here’s a detailed look at Mauritius’s weather in September by region.
Northern Coast (Grand Bay, Pereybere)
Mauritius’s weather in September in the north is mild, sunny, and dry. Daytime highs reach 25–27 °C (75–77°F), while nights cool to around 22 °C (72°F). Rainfall is minimal—about 20 mm over just a few days. With 8 hours of sunshine daily and sea temperatures holding steady at 23 °C, it’s a great time for sunbathing, sailing, or a quiet coastal escape.
Northwestern Coast (Mont Choisy, Trou aux Biches)
This area mirrors the north with slightly warmer afternoons and the same refreshing sea air. Temperatures range from 25-27 °C by day to 19–20 °C at night. Rainfall is low (around 40–45 mm), and humidity stays around 68%. Mauritius’s weather in September here is perfect for cycling, morning swims, and open-air cafés.
Western Coast (Flic en Flac, Tamarin)
The west coast is one of the sunniest places in September. Expect highs of 25–26 °C and lows near 21–22 °C. Rainfall is extremely low—just 28–40 mm over a few days. With 7.5–8 hours of sunshine and calm seas around 24 °C, Mauritius’s weather in September here is ideal for long beach days and sunset cruises.
Southwestern Coast (Le Morne)
Le Morne experiences mild and breezy conditions. Temperatures reach 25 °C by day and drop to 17 °C at night. Rainfall is modest—about 60 mm over 6 days. The area stays lush and breezy, with the sea at 23 °C, making it a fantastic spot for wind sports and coastal treks.
Southern Coast (Bel Ombre, Souillac)
Mauritius’s weather in September in the south is cool and balanced. Expect 25 °C during the day and 17 °C at night. Rain falls lightly—around 60 mm across the month. The sea remains at a comfortable 23 °C, and the scenery is dramatic yet calm. This region is excellent for photography and nature lovers.
Southeastern Coast (Blue Bay, Mahebourg, Plaine Magnien)
This region benefits from bright mornings and mild trade winds. Highs reach 25-26 °C, and nights settle around 18 °C. Rainfall is light—about 50–55 mm spread across a few days. With 6.5 hours of sunshine and warm sea temperatures, Mauritius’s weather in September here is ideal for exploring marine life and island culture.
Eastern Coast (Belle Mare, Trou d’Eau Douce)
Belle Mare is slightly breezier and cooler. Temperatures range from 24-26 °C during the day to 21 °C at night. Rainfall is the lowest on the island—just 14 mm over nearly 12 days. Sunshine averages over 9 hours daily, and the sea stays steady at 23 °C. This is a peaceful time to visit if you love open beaches and early morning light.
Central Plateau (Curepipe and Highlands)
Curepipe remains one of the coolest places in September. Highs reach 21 °C and lows drop to 15 °C. Rain is moderate—around 70 mm—usually in the form of brief afternoon showers or morning mist. Mauritius’s weather in September here is ideal for waterfall hikes, botanical gardens, and quiet exploration.
Sunrise, Sunset & Tides (September)
- Sunrise: Between 06:10 and 06:20
- Sunset: Between 17:50 and 18:05
- Tides: High tide in the early morning and evening; low tide mid-morning and late afternoon
- Sea Temperature: Around 23–24 °C across all coastal areas
Mauritius’s weather in September is tranquil, warm, and ideal for outdoor adventure. With low rainfall, sunny skies, and sea temperatures still perfect for swimming, it’s a fantastic time to explore the island before the summer crowds arrive. Whether you’re relaxing in Grand Bay, snorkeling in Blue Bay, or hiking near Curepipe, September is a quiet gem in Mauritius’s seasonal calendar.
September
Location | Avg. High Temp (°C/°F) | Avg. Low Temp (°C/°F) | Avg. Rainfall (mm) | Avg. Sea Temp (°C/°F) |
---|---|---|---|---|
Flic en Flac | 24 / 75 | 19 / 66 | 51 | 24 / 75 |
Tamarin | 24 / 75 | 19 / 66 | 51 | 24 / 75 |
Grand Baie | 24 / 75 | 19 / 66 | 51 | 24 / 75 |
Le Morne | 24 / 75 | 19 / 66 | 51 | 24 / 75 |
Belle Mare | 24 / 75 | 19 / 66 | 51 | 24 / 75 |
Blue Bay | 24 / 75 | 19 / 66 | 51 | 24 / 75 |
Trou aux Biches | 24 / 75 | 19 / 66 | 51 | 24 / 75 |
For Comparison | ||||
London | 19 / 66 | 11 / 52 | 51 | – |
New York | 24 / 75 | 15 / 59 | 99 | 23 / 73 |
Paris | 20 / 68 | 11 / 52 | 51 | – |
Sydney | 19 / 66 | 10 / 50 | 67 | 19 / 66 |
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