Wollongong city centre in Summer
In summer (December, January and February), Wollongong city centre sees average daytime highs around 22°C and overnight lows near 20°C, with 272 mm of rain over about 34 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 22°C. The sky is clear or mostly clear about 37% of the time across summer, and the air most often feels muggy.
Summer is Wollongong city centre's best season of the year to visit on our travel score. For the whole year in context, see Wollongong city centre's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 272 mm
- 34 wet days
- Avg wind
- 20 km/h
- Travel score
- 6.5
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Wollongong city centre in Summer
Across summer, daytime highs hold fairly steady around 22°C.
A typical summer day in Wollongong city centre reaches about 22°C and drops to 20°C overnight. The warmest of the three months is February, the coolest December.
Wollongong city centre weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 23° / 20° | 84 | 10.7 | 14 | 6.7 |
| Feb | 23° / 20° | 116 | 12.3 | 13.3 | 6.4 |
| Mar | 22° / 19° | 110 | 13.8 | 12.3 | 6.3 |
| Apr | 20° / 18° | 95 | 11.6 | 11.2 | 6.3 |
| May | 18° / 15° | 98 | 9.9 | 10.2 | 6.1 |
| Jun | 16° / 14° | 123 | 10.5 | 9.7 | 5.3 |
| Jul | 16° / 12° | 66 | 8.1 | 9.9 | 5.4 |
| Aug | 16° / 13° | 63 | 6.7 | 10.7 | 5.8 |
| Sep | 17° / 14° | 59 | 7.6 | 11.8 | 6.2 |
| Oct | 19° / 15° | 73 | 9.7 | 12.9 | 6.3 |
| Nov | 20° / 17° | 85 | 10.6 | 13.8 | 6.2 |
| Dec | 21° / 19° | 72 | 11.4 | 14.3 | 6.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 37% of the time across summer.
Chance of precipitation in Summer
Wollongong city centre gets around 272 mm of rain over 34 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 20 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 06 min in early December to 12 h 48 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.4 kWh/m².
Hazard calendar for Wollongong city centre
In summer, Wollongong city centre overlaps its cyclone season. The full year is below, with each hazard's peak months called out.
Wollongong city centre sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Is summer a good time to visit Wollongong city centre?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Wollongong city centre for sightseeing.
What to pack for Wollongong city centre in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Wollongong city centre sees daytime highs around 22°C and nights near 20°C. Pack sun protection. Worth having: light clothes, rain gear and a windbreaker. About 34 days see rain.
Sea temperature near Wollongong city centre in Summer
The nearest coast averages about 22°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 km away) is warmest in February at about 23°C and coldest in August near 18°C.
It's comfortable for a long swim from Nov 25 to May 27 — about 6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 22 | 23 | 23 | 22 | 21 | 19 | 18 | 18 | 18 | 19 | 20 | 21 |
| Comfort | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool | Cool | Cool | Cool | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 22 | Refreshing |
| Feb | 23 | Refreshing |
| Mar | 23 | Refreshing |
| Apr | 22 | Refreshing |
| May | 21 | Refreshing |
| Jun | 19 | Cool |
| Jul | 18 | Cool |
| Aug | 18 | Cool |
| Sep | 18 | Cool |
| Oct | 19 | Cool |
| Nov | 20 | Cool |
| Dec | 21 | Refreshing |
UV index in Wollongong city centre in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Wollongong city centre peaks around January 1 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 12 | 9 | 6 | 3 | 2 | 3 | 4 | 5 | 8 | 10 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 12 | Extreme |
| Mar | 9 | Very high |
| Apr | 6 | High |
| May | 3 | Moderate |
| Jun | 2 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 5 | High |
| Oct | 8 | Very high |
| Nov | 10 | Very high |
| Dec | 12 | Extreme |
Air quality in Wollongong city centre in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Wollongong city centre is worst in December — around 32 µg/m³ PM2.5 (moderate), about 4.8× the cleanest month (June, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 17 | 8 | 8 | 9 | 8 | 7 | 7 | 8 | 11 | 10 | 11 | 32 |
| Level | Moderate | Good | Good | Good | Good | Good | Good | Good | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 8 | Good |
| Mar | 8 | Good |
| Apr | 9 | Good |
| May | 8 | Good |
| Jun | 7 | Good |
| Jul | 7 | Good |
| Aug | 8 | Good |
| Sep | 11 | Good |
| Oct | 10 | Good |
| Nov | 11 | Good |
| Dec | 32 | Moderate |
Where is Wollongong city centre?
Wollongong city centre sits at 34.4°S, 150.9°E, 10 m above sea level, in Australia. The nearest listed city is Wollongong, 0.0 km away.
Topography around Wollongong city centre
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Wollongong city centre.
Within 3 km, the terrain around Wollongong city centre has only modest variations in elevation — a maximum elevation change of 110 m around an average of 15 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 578 m; within 80 km, large variations in elevation — a maximum elevation change of 1,069 m.
The land around Wollongong city centre is covered by artificial surfaces (33%), water (33%) and trees (26%) within 3 km, water (50%) and trees (36%) within 16 km, and trees (48%) and water (33%) within 80 km.
Australia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type I
- 230 V · 50 Hz
- Prices
- ≈ 90% of US
- price level, 2025
- GDP per capita
- $65,130
- 2025
- Happiness
- 6.9 / 10
- World Happiness, 2025
- Homicide rate
- 0.9
- per 100k, 2023
- Road deaths
- 4.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Wollongong city centre (-34.4279°, 150.8927°, elevation 10 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.