Is December a good month to surf Byron Bay?

December is outside Byron Bay's main surf season (March–September), so surf is less reliable, though it can still work on the right day.

How warm is the sea in Byron Bay in December?

About 25°C on average, which calls for boardshorts or a rash vest.

What is the weather like in Byron Bay in December?

Air temperature averages 24°C, with about 4.3 mm of rain per day and average winds of 24 km/h.

Surf Byron Bay in December

Surfing Byron Bay in December: outside the main surf season, air around 24°C, sea around 25°C, 4.3 mm of rain a day on average. Wetsuit: boardshorts or a rash vest.

Surf season

Off-season

Air temperature

24°C

Sea temperature

25°C

Rain

4.3 mm/day

Wind

24 km/h avg

Average wave height

1.4 m (5 ft)

Big days (top 10%)

2.0 m (6 ft)+

Swell period

8 s

Main swell direction

From E (90°)

What to wear: with the sea around 25°C in December, expect boardshorts or a rash vest.

Surf size in Byron Bay in December

Offshore of Byron Bay, waves in December average 1.4 m (5 ft), below the year-round average of 1.6 m — the 11th biggest month of the year. One hour in ten is 2.0 m (6 ft) or bigger. The dominant swell runs at about 8 seconds from the E.

These are open-ocean figures from 10 years of hourly wave data, not a beach forecast: a sheltered break will be smaller, an exposed reef or point can be bigger.

December in the context of Byron Bay's surf season

Byron Bay's main surf season runs March–September. December is outside it.

Full Byron Bay surf and remote-work guide →

Frequently asked questions

Is December a good month to surf Byron Bay?: December is outside Byron Bay's main surf season (March–September), so surf is less reliable, though it can still work on the right day.
How warm is the sea in Byron Bay in December?: About 25°C on average, which calls for boardshorts or a rash vest.
What is the weather like in Byron Bay in December?: Air temperature averages 24°C, with about 4.3 mm of rain per day and average winds of 24 km/h.