Hikkaduwa Sea Temperature

Updated Sat 06:38 (Asia/Colombo)

Sri Lanka · Forecast updated Aug 8, 2026, 06:38 UTC

Current Sea Temperature

28.0°C

82.4°F

Very warm water

Versus this month's average

Close to average

The August average in our archive is 27.8°C (82.1°F).

Recent trend

Cooling by 0.7°C

Seven-day average: 27.9°C, versus 28.5°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 Hikkaduwa, monthly averages range from about 27.8°C (82.1°F) in August to 28.7°C (83.7°F) in June.

Over the past 30 days, the average sea temperature in Hikkaduwa has been 28.5°C.

Month	Min	Average	Max
June	28.4°C / 83.1°F	28.7°C / 83.7°F	29.1°C / 84.4°F
July	28.1°C / 82.6°F	28.7°C / 83.7°F	29.3°C / 84.7°F
August	27.4°C / 81.3°F	27.8°C / 82.1°F	28.1°C / 82.6°F

Profile calculated from 1647 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.

South-coast reef sanctuary with turtles in calm shallow water.

The current sea surface temperature in Hikkaduwa is 28.0°C. Over the last 30 days, the average has been 28.5°C.

The warmest monthly average in the Hikkaduwa archive is June, at around 28.7°C (83.7°F).

The coldest monthly average in the archive is August, at around 27.8°C (82.1°F).

At 28.0°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 Hikkaduwa.