Annual mean 24°C · wettest around January · prevailing wind E
Warmest
31.0 °C
Coldest
24.4 °C
Wettest
34%
Windiest
6.2 m/s
Prevailing
E
5.1 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 Cairns over the whole year is 24°C. December is the hottest month, with highs of about 31°C; August is the coldest, with lows of about 18°C. The rainy (wet) season in Cairns runs from December to April, peaking in January with a 37% chance of rain on a given day. The dry season is May to November; October is the driest month, at 8%. Winds in Cairns are highest in May, averaging 5.0 m/s (18 km/h), and lightest in January, at 3.4 m/s (12 km/h). The prevailing wind is from the E. The clearest skies in Cairns come in October, when the sky is typically 56% covered; January is the cloudiest month, at 73%.
Month by month Cairns 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
30°C
25°C
33°C
37%
73%
3.4 m/s
6
50
0
February
30°C
25°C
32°C
32%
72%
3.4 m/s
7
49
0
March
30°C
24°C
32°C
31%
70%
3.6 m/s
12
55
1
April
28°C
23°C
29°C
23%
69%
4.7 m/s
38
62
7
May
26°C
21°C
26°C
16%
71%
5.0 m/s
66
56
24
June
25°C
19°C
24°C
9%
70%
4.8 m/s
82
39
42
July
25°C
18°C
23°C
9%
69%
4.6 m/s
85
33
49
August
25°C
18°C
24°C
8%
66%
4.6 m/s
85
40
44
September
27°C
20°C
26°C
8%
63%
4.6 m/s
70
56
28
October
29°C
22°C
29°C
8%
56%
3.8 m/s
35
78
7
November
30°C
23°C
30°C
10%
61%
3.7 m/s
19
74
2
December
31°C
24°C
32°C
23%
67%
3.5 m/s
8
56
1
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 Cairns weather by season
Year round, Cairns has days of about 25°C at their warmest in July, its coolest month, and 31°C in December, its warmest; the coolest hours of the day run from 18°C to 25°C through the year, and the average temperature over the year is 24°C around the clock. Rain is most likely around January and least likely around October. 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.
Cairns weather in winterJune to August
High 25°CLow 19°CRain 9%
Winter in Cairns has typical daily highs of about 25°C and lows of about 19°C, with a 9% chance of rain on a given day.
Cairns weather in springSeptember to November
High 29°CLow 22°CRain 8%
Spring in Cairns has typical daily highs of about 29°C and lows of about 22°C, with a 8% chance of rain on a given day.
Cairns weather in summerDecember to February
High 30°CLow 24°CRain 31%
Summer in Cairns has typical daily highs of about 30°C and lows of about 24°C, with a 31% chance of rain on a given day.
Cairns weather in autumnMarch to May
High 28°CLow 23°CRain 23%
Autumn in Cairns has typical daily highs of about 28°C and lows of about 23°C, with a 23% chance of rain on a given day.
When is the rainy season in Cairns?
The rainy (wet) season in Cairns runs from December to April, peaking in January with a 37% chance of rain on a given day. The dry season is May to November; October is the driest month, at 8%.
What time of year is Cairns windiest?
Winds in Cairns are highest in May, averaging 5.0 m/s (18 km/h), and lightest in January, at 3.4 m/s (12 km/h). The prevailing wind is from the E.
What is the average temperature in Cairns year round?
The average temperature in Cairns over the whole year is 24°C. December is the hottest month, with highs of about 31°C; August is the coldest, with lows of about 18°C.