Wollongong climate — normals and trends
Wollongong (Australia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 17.4 °C and it receives 1,092 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is February (21.2 °C on average) and the coldest is July (13.5 °C). Rainfall peaks in June.
Wollongong averages 0 frost days, 0 hot days (≥ 30 °C) and 129 rainy days per year.
Wollongong has warmed by +1.2 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.6 °C (on 18 January 2013) and the coldest 7.4 °C (on 4 July 1984).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
WollongongNew South Wales
- coords
- -34.42°, 150.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.4°C
Average daily high
18.9°C
Average daily low
16.0°C
Annual rainfall
1,092mm
Sunshine / day
10.2h
Mean relative humidity
74%
Average peak wind
29.1km/h
Seasonal range
7.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
129 d/yr
Annual snowfall
0.0 cm
Average feels-like high
18.0 °C
Average feels-like low
13.4 °C
Average peak gust
41.5 km/h
Tropical nights (≥ 20 °C)
46 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.2 °C per decade · r² = 0.66 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
35.6 °C
18 January 2013
Coldest day
7.4 °C
4 July 1984
Wettest day
139 mm
4 March 1979
Windiest day
81.6 km/h
21 June 1975
Strongest gust
134.3 km/h
24 August 2021
Hottest feels-like
36.2 °C
18 January 2013
Coldest feels-like
-1.1 °C
18 July 2004
Sunniest day
14.0 h
3 January 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 22.6 °C | +0.4 °C | 148 mm | +52 mm |
| Feb | 23.1 °C | +0.7 °C | 76 mm | -35 mm |
| Mar | 23.0 °C | +1.3 °C | 173 mm | +58 mm |
| Apr | 21.6 °C | +1.5 °C | 140 mm | +30 mm |
| May | 19.1 °C | +1.2 °C | 185 mm | +83 mm |
| Jun | 15.8 °C | -0.1 °C | 24 mm | -92 mm |
| Jul | 15.6 °C | +0.5 °C | 209 mm | +144 mm |
| Aug | 16.0 °C | +0.4 °C | 313 mm | +242 mm |
| Sep | 19.4 °C | +2.4 °C | 150 mm | +92 mm |
| Oct | 21.2 °C | +2.9 °C | 39 mm | -41 mm |
| Nov | 21.4 °C | +1.9 °C | 26 mm | -61 mm |
| Dec | 22.0 °C | +0.9 °C | 69 mm | -9 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Wollongong?
Wollongong has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 17.4 °C and it receives 1,092 mm of precipitation per year.
What is the hottest day ever recorded in Wollongong?
The hottest day measured in Wollongong between 1940 and 2025 was 18 January 2013, reaching 35.6 °C.
What is the coldest day in Wollongong?
The coldest day measured in Wollongong between 1940 and 2025 was 4 July 1984, at 7.4 °C.
Does it snow in Wollongong?
Almost never: Wollongong sees virtually no snow, with about 0 frost days per year.
Has the climate of Wollongong warmed?
Yes: Wollongong warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Wollongong?
The wettest day measured in Wollongong between 1940 and 2025 was 4 March 1979, with 139 mm of rain in 24 hours.
What was the windiest day in Wollongong?
The windiest day measured in Wollongong between 1940 and 2025 was 21 June 1975, with winds reaching 81.6 km/h.
What is the warmest month in Wollongong?
The warmest month in Wollongong is February (21.2 °C on average); the coldest is July (13.5 °C).
How much does it rain in Wollongong?
Wollongong receives on average 1,092 mm of precipitation per year, spread over about 129 rainy days.
Is it sunny in Wollongong?
Wollongong gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Wollongong?
Yes: Wollongong has on average 46 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Wollongong?
In Wollongong, between 1940 and 2025, the highest apparent temperature reached 36.2 °C on 18 January 2013, and the lowest was -1.1 °C on 18 July 2004.
Compare Wollongong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Wollongong