Goat Island Sea Temperature

Updated Sun 02:12 (Pacific/Auckland)

New Zealand · Forecast updated Aug 9, 2026, 02:12 UTC

Current Sea Temperature

13.6°C

56.5°F

Cold water

Versus this month's average

Close to average

The August average in our archive is 13.7°C (56.6°F).

Recent trend

Cooling by 0.5°C

Seven-day average: 13.5°C, versus 14.0°C in the prior seven days.

What to wear

Cold water

Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.

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 Goat Island, monthly averages range from about 13.7°C (56.6°F) in August to 16.2°C (61.1°F) in June.

Over the past 30 days, the average sea temperature in Goat Island has been 14.1°C.

Month	Min	Average	Max
June	14.9°C / 58.8°F	16.2°C / 61.1°F	17.6°C / 63.7°F
July	13.8°C / 56.8°F	14.5°C / 58.1°F	15.6°C / 60.1°F
August	13.0°C / 55.4°F	13.7°C / 56.6°F	14.3°C / 57.7°F

Profile calculated from 1666 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.

New Zealand's first marine reserve, with snapper and kelp in clear shallows.

The current sea surface temperature in Goat Island is 13.6°C. Over the last 30 days, the average has been 14.1°C.

The warmest monthly average in the Goat Island archive is June, at around 16.2°C (61.1°F).

The coldest monthly average in the archive is August, at around 13.7°C (56.6°F). A wetsuit is usually recommended during this period.

At 13.6°C the water is cold. A thick wetsuit is strongly recommended.

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