Mauritius · Indian Ocean
Le Morne
Sea
24.4°C75.9°F
Air
UV
Beach day
⁦23–28°C⁩

Last updated ·

Today, September 13, the sea temperature at Le Morne is 24.4 °C (76 °F). That is 0.6 °C warmer than the usual 23.8 °C in September. Comfortable for swimming year-round.

Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in March (28.3°C). Coldest in September (23.8°C). Comfortable for swimming year-round.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January27.5°C27.9°C28.3°C25.9°C26.7°C27.5°C
February27.5°C28.2°C29.0°C26.1°C26.9°C27.7°C
March28.0°C28.3°C28.9°C26.1°C26.9°C27.6°C
April27.5°C27.9°C28.3°C25.5°C26.2°C27.0°C
May26.4°C26.9°C27.5°C24.1°C24.8°C25.5°C
June25.1°C25.6°C26.1°C22.6°C23.2°C23.9°C
July23.7°C24.3°C24.9°C21.6°C22.3°C23.1°C
August23.1°C23.8°C24.6°C21.4°C22.1°C22.9°C
September23.1°C23.8°C24.5°C21.6°C22.6°C23.5°C
October23.5°C24.3°C25.2°C22.4°C23.4°C24.3°C
November25.0°C25.7°C26.4°C23.8°C24.8°C25.6°C
December26.4°C27.1°C27.8°C25.0°C26.0°C26.8°C

About Le Morne

At Mauritius' southwestern tip rises Le Morne Brabant, a 556-metre basaltic monolith whose cliff caves sheltered runaway Maroons through the 18th and 19th centuries and joined the UNESCO World Heritage list in 2008. Below the rock, Le Morne Beach curves six kilometres of white sand inside a turquoise lagoon, while the offshore reef pass known as One Eye breaks into one of the world's most celebrated kitesurf swells. The Indian Ocean holds 26 to 28 °C79 to 82 °F from December through April, with Sir Seewoosagur Ramgoolam airport fifty minutes by motorway.

Frequently asked questions

Today, September 13, the sea at Le Morne is 24.4 °C (76 °F)76 °F (24.4 °C) – ideal for swimming for most people. The usual September average is 23.8 °C75 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Le Morne is 24.4 °C76 °F.

Yes – the sea at Le Morne (Indian Ocean, Mauritius) stays swimmable all year. September is the coolest month, averaging 23.8 °C75 °F – ideal for swimming for most people; the warmest is March at 28.3 °C83 °F.

In March, at 28.3 °C83 °F on average. The coolest month is September at 23.8 °C75 °F – still above the 18 °C64 °F swimming line, so there is no off-season for swimming.