December is a popular month to ask about Bruce Bay because conditions can shift week to week along this coast. Expect the water near 17.0°C, with daily variation from wind, tides and recent storms. We refresh the live value from Open-Meteo Marine every hour, so the headline above always reflects the current state of the Tasman Sea.
Bruce Bay sea temperature in December — averages 17.0°C
The sea at Bruce Bay in New Zealand averages 17.0°C during December, based on long-run climatology for the Tasman Sea. Use the live reading below for today's actual water and the monthly grid to compare with the rest of the year.
Average sea · December
17.0°C
mild · Fair
Live water now
…
Recommended wetsuit
3/2mm fullsuit
At 17.0°C a 3/2mm fullsuit is the standard wetsuit for surfing and watersports.
Monthly comparison
Yes, but expect a fresh dip · Bruce Bay
Can you swim at Bruce Bay in July? — 12.0°C water12.0°CCan you swim at Bruce Bay in August? — 12.0°C water12.0°CCan you swim at Bruce Bay in September? — 13.0°C water13.0°CCan you swim at Bruce Bay in October? — 14.0°C water14.0°CCan you swim at Bruce Bay in November? — 15.0°C water15.0°CCan you swim at Bruce Bay in December? — 17.0°C water17.0°C
Frequently asked questions
What is the average sea temperature at Bruce Bay in December?
Bruce Bay averages 17.0°C in December, based on long-run climatology for the Tasman Sea.
Is the sea warm enough to swim at Bruce Bay in December?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Bruce Bay in December?
A 2 mm shorty is comfortable for sessions over 30 minutes.