Anse Chastanet Sea Temperature

Updated Tue 04:52 (America/St_Lucia)

Saint Lucia · Forecast updated Aug 11, 2026, 04:52 UTC

Current Sea Temperature

29.1°C

84.4°F

Very warm water

Versus this month's average

Close to average

The August average in our archive is 28.9°C (83.9°F).

Recent trend

Warming by 0.3°C

Seven-day average: 28.8°C, versus 28.6°C in the prior seven days.

What to wear

Very warm water

Swimwear is usually enough; a rash guard adds sun protection.

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 Anse Chastanet, monthly averages range from about 28.2°C (82.7°F) in June to 28.9°C (83.9°F) in August.

Over the past 30 days, the average sea temperature in Anse Chastanet has been 28.6°C.

Month	Min	Average	Max
June	27.9°C / 82.2°F	28.2°C / 82.7°F	28.5°C / 83.3°F
July	28.1°C / 82.6°F	28.4°C / 83.1°F	29.1°C / 84.4°F
August	28.3°C / 82.9°F	28.9°C / 83.9°F	29.5°C / 85.1°F

Profile calculated from 1717 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.

Marine-reserve reef beneath the Pitons, snorkelable straight off the beach.

The current sea surface temperature in Anse Chastanet is 29.1°C. Over the last 30 days, the average has been 28.6°C.

The warmest monthly average in the Anse Chastanet archive is August, at around 28.9°C (83.9°F).

The coldest monthly average in the archive is June, at around 28.2°C (82.7°F).

At 29.1°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 Anse Chastanet.