Annual mean 17°C · wettest around March · prevailing wind E
Warmest
25.9 °C
Coldest
15.0 °C
Wettest
28%
Windiest
6.1 m/s
Prevailing
E
5.4 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 Wollongong over the whole year is 17°C. January is the hottest month, with highs of about 25°C; July is the coldest, with lows of about 9°C. Wollongong has no sharply defined rainy season: the chance of rain on a given day runs from 14% in June, the driest month, to 27% in March, the wettest. Winds in Wollongong are highest in January, averaging 4.5 m/s (16 km/h), and lightest in April, at 3.7 m/s (13 km/h). The prevailing wind is from the E. The clearest skies in Wollongong come in April, when the sky is typically 70% covered; January is the cloudiest month, at 79%.
Month by month Wollongong 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
25°C
20°C
24°C
23%
79%
4.5 m/s
68
37
40
February
24°C
19°C
23°C
23%
77%
4.4 m/s
71
34
45
March
23°C
18°C
22°C
27%
78%
4.3 m/s
73
27
51
April
21°C
14°C
19°C
17%
70%
3.7 m/s
75
9
70
May
18°C
11°C
15°C
17%
72%
3.9 m/s
54
1
78
June
15°C
9°C
11°C
14%
74%
4.1 m/s
27
0
74
July
15°C
9°C
11°C
14%
73%
4.4 m/s
23
0
72
August
16°C
9°C
12°C
16%
74%
4.3 m/s
31
0
74
September
19°C
11°C
14°C
14%
73%
4.4 m/s
47
2
76
October
20°C
14°C
16°C
18%
75%
4.5 m/s
63
5
76
November
22°C
16°C
19°C
20%
75%
4.4 m/s
71
11
71
December
24°C
18°C
22°C
17%
77%
4.3 m/s
71
27
53
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 Wollongong weather by season
Year round, Wollongong has days of about 15°C at their warmest in June, its coolest month, and 25°C in January, its warmest; the coolest hours of the day run from 9°C to 20°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around March and least likely around June. 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.
Wollongong weather in winterJune to August
High 16°CLow 9°CRain 15%
Winter in Wollongong has typical daily highs of about 16°C and lows of about 9°C, with a 15% chance of rain on a given day.
Wollongong weather in springSeptember to November
High 20°CLow 13°CRain 17%
Spring in Wollongong has typical daily highs of about 20°C and lows of about 13°C, with a 17% chance of rain on a given day.
Wollongong weather in summerDecember to February
High 24°CLow 19°CRain 21%
Summer in Wollongong has typical daily highs of about 24°C and lows of about 19°C, with a 21% chance of rain on a given day.
Wollongong weather in autumnMarch to May
High 21°CLow 14°CRain 20%
Autumn in Wollongong has typical daily highs of about 21°C and lows of about 14°C, with a 20% chance of rain on a given day.
When is the rainy season in Wollongong?
Wollongong has no sharply defined rainy season: the chance of rain on a given day runs from 14% in June, the driest month, to 27% in March, the wettest.
What time of year is Wollongong windiest?
Winds in Wollongong are highest in January, averaging 4.5 m/s (16 km/h), and lightest in April, at 3.7 m/s (13 km/h). The prevailing wind is from the E.
What is the average temperature in Wollongong year round?
The average temperature in Wollongong over the whole year is 17°C. January is the hottest month, with highs of about 25°C; July is the coldest, with lows of about 9°C.