Annual mean 20°C · wettest around March · prevailing wind SE
Warmest
28.5 °C
Coldest
17.6 °C
Wettest
43%
Windiest
5.9 m/s
Prevailing
SE
4.8 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Byron Bay over the whole year is 20°C. January is the hottest month, with highs of about 28°C; July is the coldest, with lows of about 12°C. The rainy (wet) season in Byron Bay runs from February to May, peaking in March with a 34% chance of rain on a given day. The dry season is June to January; September is the driest month, at 14%. Winds in Byron Bay are highest in December, averaging 4.6 m/s (17 km/h), and lightest in July, at 3.7 m/s (13 km/h). The prevailing wind is from the SE. The clearest skies in Byron Bay come in August, when the sky is typically 58% covered; March is the cloudiest month, at 73%.
Month by month Byron Bay climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
28°C
22°C
28°C
23%
66%
4.5 m/s
41
62
12
February
27°C
22°C
28°C
28%
67%
4.5 m/s
41
59
12
March
26°C
21°C
27°C
34%
73%
4.4 m/s
48
55
16
April
24°C
18°C
23°C
27%
63%
4.1 m/s
76
32
42
May
21°C
15°C
19°C
25%
64%
3.8 m/s
75
8
68
June
18°C
12°C
16°C
18%
64%
3.8 m/s
62
1
82
July
18°C
12°C
16°C
15%
61%
3.7 m/s
59
1
83
August
20°C
12°C
17°C
14%
58%
3.9 m/s
69
3
81
September
22°C
14°C
19°C
14%
61%
4.4 m/s
78
11
71
October
24°C
18°C
22°C
22%
66%
4.5 m/s
76
25
53
November
26°C
19°C
24°C
19%
64%
4.4 m/s
70
39
39
December
27°C
21°C
27°C
22%
66%
4.6 m/s
52
57
18
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Byron Bay weather by season
Year round, Byron Bay has days of about 18°C at their warmest in July, its coolest month, and 28°C in January, its warmest; the coolest hours of the day run from 12°C to 22°C through the year, and the average temperature over the year is 20°C around the clock. Rain is most likely around March and least likely around September. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Byron Bay weather in winterJune to August
High 19°CLow 12°CRain 16%
Winter in Byron Bay has typical daily highs of about 19°C and lows of about 12°C, with a 16% chance of rain on a given day.
Byron Bay weather in springSeptember to November
High 24°CLow 17°CRain 18%
Spring in Byron Bay has typical daily highs of about 24°C and lows of about 17°C, with a 18% chance of rain on a given day.
Byron Bay weather in summerDecember to February
High 27°CLow 22°CRain 24%
Summer in Byron Bay has typical daily highs of about 27°C and lows of about 22°C, with a 24% chance of rain on a given day.
Byron Bay weather in autumnMarch to May
High 24°CLow 18°CRain 29%
Autumn in Byron Bay has typical daily highs of about 24°C and lows of about 18°C, with a 29% chance of rain on a given day.
When is the rainy season in Byron Bay?
The rainy (wet) season in Byron Bay runs from February to May, peaking in March with a 34% chance of rain on a given day. The dry season is June to January; September is the driest month, at 14%.
What time of year is Byron Bay windiest?
Winds in Byron Bay are highest in December, averaging 4.6 m/s (17 km/h), and lightest in July, at 3.7 m/s (13 km/h). The prevailing wind is from the SE.
What is the average temperature in Byron Bay year round?
The average temperature in Byron Bay over the whole year is 20°C. January is the hottest month, with highs of about 28°C; July is the coldest, with lows of about 12°C.