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December weather forecast in Byron Bay

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

30 November, sun

	753 mmHg		79%
	4.8 m/s		+24

30 November, Sunday. day, 25°; night, 19°; rain

1 December, mon

	753 mmHg		80%
	5.6 m/s		+24

1 December, Monday. day, 25°; night, 19°; rain

2 December, tue

	753 mmHg		78%
	5.7 m/s		+25

2 December, Tuesday. day, 25°; night, 20°; clear

3 December, wed

	754 mmHg		78%
	5.1 m/s		+25

3 December, Wednesday. day, 25°; night, 19°; clear

4 December, thu

	753 mmHg		77%
	5.3 m/s		+25

4 December, Thursday. day, 25°; night, 19°; partly cloudy

5 December, fri

	753 mmHg		78%
	5 m/s		+25

5 December, Friday. day, 25°; night, 19°; partly cloudy

6 December, sat

	753 mmHg		78%
	5 m/s		+25

6 December, Saturday. day, 25°; night, 19°; clear

7 December, sun

	753 mmHg		80%
	5.1 m/s		+25

7 December, Sunday. day, 25°; night, 20°; rain

8 December, mon

	754 mmHg		79%
	4.8 m/s		+25

8 December, Monday. day, 25°; night, 20°; rain

9 December, tue

	754 mmHg		79%
	4.8 m/s		+25

9 December, Tuesday. day, 25°; night, 20°; rain

10 December, wed

	753 mmHg		78%
	4.8 m/s		+25

10 December, Wednesday. day, 26°; night, 20°; partly cloudy

11 December, thu

	753 mmHg		79%
	4.9 m/s		+25

11 December, Thursday. day, 25°; night, 19°; rain

12 December, fri

	754 mmHg		79%
	5 m/s		+25

12 December, Friday. day, 25°; night, 19°; rain

13 December, sat

	753 mmHg		79%
	5 m/s		+25

13 December, Saturday. day, 25°; night, 19°; partly cloudy

14 December, sun

	753 mmHg		77%
	5.2 m/s		+25

14 December, Sunday. day, 26°; night, 20°; clear

15 December, mon

	753 mmHg		79%
	4.6 m/s		+25

15 December, Monday. day, 25°; night, 20°; partly cloudy

16 December, tue

	753 mmHg		79%
	5 m/s		+26

16 December, Tuesday. day, 25°; night, 20°; rain

17 December, wed

	753 mmHg		79%
	4.9 m/s		+26

17 December, Wednesday. day, 26°; night, 20°; rain

18 December, thu

	753 mmHg		78%
	5.1 m/s		+25

18 December, Thursday. day, 25°; night, 19°; partly cloudy

19 December, fri

	753 mmHg		75%
	4.9 m/s		+25

19 December, Friday. day, 26°; night, 19°; clear

20 December, sat

	753 mmHg		75%
	5.1 m/s		+25

20 December, Saturday. day, 26°; night, 20°; clear

21 December, sun

	754 mmHg		77%
	4.8 m/s		+25

21 December, Sunday. day, 26°; night, 20°; partly cloudy

22 December, mon

	753 mmHg		77%
	5 m/s		+25

22 December, Monday. day, 26°; night, 20°; partly cloudy

23 December, tue

	753 mmHg		79%
	5 m/s		+25

23 December, Tuesday. day, 25°; night, 20°; rain

24 December, wed

	753 mmHg		79%
	4.8 m/s		+25

24 December, Wednesday. day, 26°; night, 20°; rain

25 December, thu

	753 mmHg		80%
	4.4 m/s		+25

25 December, Thursday. day, 26°; night, 20°; rain

26 December, fri

	753 mmHg		80%
	4.8 m/s		+25

26 December, Friday. day, 25°; night, 20°; rain

27 December, sat

	753 mmHg		81%
	5.1 m/s		+25

27 December, Saturday. day, 25°; night, 20°; rain

28 December, sun

	753 mmHg		79%
	5.1 m/s		+25

28 December, Sunday. day, 25°; night, 20°; rain

29 December, mon

	754 mmHg		78%
	5 m/s		+26

29 December, Monday. day, 26°; night, 20°; clear

30 December, tue

	754 mmHg		77%
	5.1 m/s		+26

30 December, Tuesday. day, 26°; night, 20°; clear

31 December, wed

	754 mmHg		78%
	4.9 m/s		+26

31 December, Wednesday. day, 26°; night, 20°; rain

1 January, thu

	753 mmHg		80%
	4.69 m/s		+27

1 January, Thursday. day, 25°; night, 20°; overcast

2 January, fri

	753 mmHg		79%
	4.9 m/s		+26

2 January, Friday. day, 26°; night, 20°; rain

3 January, sat

	753 mmHg		80%
	5.3 m/s		+25

3 January, Saturday. day, 25°; night, 20°; rain

Average data for 10 years

Byron Bay December

8

sunny days

15

days with precipitation

7

cloudy days

8 sunny days; 15 days with precipitation; 7 cloudy days;

78

%

air humidity

3.4

m/s

WindSE

139

mm of precipitation

(10% of annual average)

+25

°C

Water temperature

air humidity 78%; 139 millimeters of precipitation (10% of annual average); Wind south-easterly 3.4 Meters per second; Water temperature +25°

Weather graphs for December

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

S

S

S

SE

SE

SE

SE

SE

SE

S

S

SE

SE

SE

SE

SE

SE

S

S

S

SE

S

S

SE

SE

S

SE

SE

SE

SE

SE

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Brisbane
Gold Coast
Bargara
Casino
Bundaberg
Ballina
Yamba
Sunshine Coast
Oakey

Cities with similar weather in December

Nha Trang
Sanya
Varadero
Abu Dhabi
Havana
Sydney
Ras al-Khaimah
Buenos Aires
Fudjeyra

The weather forecast for December 2025 is based on historical data from the past 10 years.

In December, the weather in Byron Bay is typically warm. Average daily high temperature in December is about 25 degrees above zero. On average, Byron Bay has 15 rainy, 8 sunny, and 8 partly cloudy days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Byron Bay.

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