Wollongong weather by month
The best time to visit Wollongong is December to February — 85/100 in January, 25°C and 11 rainy days. The best season is summer, December to February (84/100 on average).
The worst month is June at 70/100 — nice, rainy, clean air. See June →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Australia →
Best season: December to February (84/100 on average) · worst June (70/100)
- Days
- 25°C
- Nights
- 20°C
- Wet days
- 11
- Sun
- 10.8 h
- Humidity
- 78%
- Daylight
- 14 h

Wollongong, month by month
Comfort score out of 100 for the kind of trip Wollongong is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
What's on in Wollongong through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Wollongong in January
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsIllawarra Folk Festival, Grand Pacific Drive weekends, Summer holidays in Australia(estimated)
Peak crowdsBusyShoulder seasonQuiet
Traveller notes on Wollongong
What people who have been say about the place — the year-round notes first, then month by month.
Forum posters note Wollongong genuinely gets a lot of rain year-round - more than twice London's annual rainfall by one poster's count, with roughly 137 days of some rain a typical year - so a summer visit is never a sure bet for wall-to-wall sun. One visitor's five-day December trip (similar seasonal pattern to January) landed three good tourist days and two stormy ones spent mostly near the hotel, which posters treat as a fairly representative mix for this time of year. Despite the rain risk, posters describe January days as warm and pleasant when the weather does cooperate, with the coastal escarpment scenery and beaches making it worth building in flexibility rather than a rigid day-by-day plan.
Forum posters describe Wollongong's July as squarely winter, cool with genuinely variable weather, and recommend wind-proof clothing given how biting the coastal wind can turn, especially once the dry southwesterlies pick up later in winter into August-September. Posters note Wollongong sees heavy-rain days regularly but overall fewer stretches of mixed, changeable weather than Melbourne, with roughly 137 rainy days a year on average. Posters describing the following spring, September through November, note those months bring markedly clearer, crisper conditions - useful context for anyone deciding between a winter or spring visit. Posters generally rate July as cool, wind-affected and genuinely wintry for Wollongong, workable with proper layers and wind protection.
Add your own note from Wollongong's card on the map.