Hermitage Lagoon Sea Temperature

Updated Wed 11:45 (Indian/Reunion)

Réunion · Forecast updated Aug 12, 2026, 11:45 UTC

Current Sea Temperature

25.5°C

77.9°F

Warm water

Versus this month's average

0.4°C above

The August average in our archive is 25.1°C (77.2°F).

Recent trend

Holding fairly steady

Seven-day average: 25.2°C, versus 25.0°C in the prior seven days.

What to wear

Warm water

Most people are comfortable in swimwear or a light rash guard.

Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions.

Sea Surface Temperature Over the Year

In the data collected for Hermitage Lagoon, monthly averages range from about 25.0°C (77.0°F) in July to 26.0°C (78.9°F) in June.

Over the past 30 days, the average sea temperature in Hermitage Lagoon has been 25.0°C.

Southern Hemisphere. Summer is generally December–February; winter is June–August.

Month	Min	Average	Max
June	25.2°C / 77.4°F	26.0°C / 78.9°F	26.9°C / 80.4°F
July	24.6°C / 76.3°F	25.0°C / 77.0°F	25.4°C / 77.7°F
August	24.8°C / 76.6°F	25.1°C / 77.2°F	25.7°C / 78.3°F

Profile calculated from 1748 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.

Protected west-coast lagoon with shallow coral and reef fish.

The current sea surface temperature in Hermitage Lagoon is 25.5°C. Over the last 30 days, the average has been 25.0°C.

The warmest monthly average in the Hermitage Lagoon archive is June, at around 26.0°C (78.9°F).

The coldest monthly average in the archive is July, at around 25.0°C (77.0°F).

At 25.5°C, the water is usually comfortable for swimming and snorkeling.

See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Hermitage Lagoon.