Vavaʻu Sea Temperature

Updated Sat 08:22 (Pacific/Tongatapu)

Tonga · Forecast updated Aug 8, 2026, 08:22 UTC

Current Sea Temperature

23.9°C

75.0°F

Mild water

Versus this month's average

Close to average

The August average in our archive is 23.9°C (75.0°F).

Recent trend

Holding fairly steady

Seven-day average: 23.9°C, versus 24.1°C in the prior seven days.

What to wear

Mild water

A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.

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 Vavaʻu, monthly averages range from about 23.9°C (75.0°F) in August to 25.7°C (78.2°F) in June.

Over the past 30 days, the average sea temperature in Vavaʻu has been 24.3°C.

Month	Min	Average	Max
June	25.1°C / 77.2°F	25.7°C / 78.2°F	26.4°C / 79.5°F
July	24.0°C / 75.2°F	24.6°C / 76.3°F	25.3°C / 77.5°F
August	23.8°C / 74.8°F	23.9°C / 75.0°F	24.2°C / 75.6°F

Profile calculated from 1649 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.

Island group famed for swimming with humpback whales and clear reef water.

The current sea surface temperature in Vavaʻu is 23.9°C. Over the last 30 days, the average has been 24.3°C.

The warmest monthly average in the Vavaʻu archive is June, at around 25.7°C (78.2°F).

The coldest monthly average in the archive is August, at around 23.9°C (75.0°F).

At 23.9°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 Vavaʻu.