Geelong in Summer
In summer (December, January and February), Geelong sees average daytime highs around 22°C and overnight lows near 14°C, with 115 mm of rain over about 17 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Over the season highs climb from about 20°C in early December to 22°C by late February. The sky is clear or mostly clear about 30% of the time across summer, and the air most often feels dry.
Summer is Geelong's best season of the year to visit on our travel score. For the whole year in context, see Geelong's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 14°C
- Rainfall
- 115 mm
- 17 wet days
- Avg wind
- 14 km/h
- Travel score
- 7.3
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Geelong in Summer
Over the season highs climb from about 20°C in early December to 22°C by late February.
A typical summer day in Geelong reaches about 22°C and drops to 14°C overnight. The warmest of the three months is January, the coolest December.
Geelong 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° / 15° | 38 | 5.4 | 14.3 | 7.5 |
| Feb | 23° / 15° | 34 | 4.8 | 13.5 | 7.5 |
| Mar | 21° / 14° | 26 | 4.6 | 12.3 | 7.3 |
| Apr | 19° / 12° | 33 | 5.8 | 11 | 6.4 |
| May | 16° / 10° | 32 | 7.1 | 10 | 5.1 |
| Jun | 14° / 9° | 40 | 8.4 | 9.4 | 3.9 |
| Jul | 13° / 8° | 37 | 9.3 | 9.6 | 3.6 |
| Aug | 14° / 8° | 40 | 9.8 | 10.5 | 3.9 |
| Sep | 15° / 9° | 49 | 10.1 | 11.7 | 4.5 |
| Oct | 17° / 10° | 50 | 8.9 | 13 | 5.5 |
| Nov | 19° / 11° | 55 | 8.1 | 14.1 | 6.2 |
| Dec | 21° / 13° | 42 | 6.9 | 14.6 | 6.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 30% of the time across summer.
Chance of precipitation in Summer
Geelong gets around 115 mm of rain over 17 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 14 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 30 min in early December to 13 hours 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 6.6 kWh/m².
Is summer a good time to visit Geelong?
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 one of the better times to visit Geelong for general sightseeing.
What to pack for Geelong in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Geelong sees daytime highs around 22°C and nights near 14°C. Pack sun protection. Worth having: light clothes. About 17 days see rain.
Sea temperature near Geelong in Summer
The nearest coast averages about 18°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 25 km away) is warmest in February at about 19°C and coldest in August near 13°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 18 | 19 | 19 | 17 | 16 | 14 | 13 | 13 | 13 | 14 | 15 | 17 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 18 | Cool |
| Feb | 19 | Cool |
| Mar | 19 | Cool |
| Apr | 17 | Cool |
| May | 16 | Cool |
| Jun | 14 | Bracing |
| Jul | 13 | Bracing |
| Aug | 13 | Bracing |
| Sep | 13 | Bracing |
| Oct | 14 | Bracing |
| Nov | 15 | Cool |
| Dec | 17 | Cool |
UV index in Geelong in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Geelong peaks around December 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 10 | 8 | 5 | 3 | 2 | 2 | 3 | 4 | 7 | 10 | 12 |
| Level | Extreme | Extreme | Very high | Moderate | Moderate | Low | Moderate | Moderate | Moderate | Very high | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 10 | Extreme |
| Mar | 8 | Very high |
| Apr | 5 | Moderate |
| May | 3 | Moderate |
| Jun | 2 | Low |
| Jul | 2 | Moderate |
| Aug | 3 | Moderate |
| Sep | 4 | Moderate |
| Oct | 7 | Very high |
| Nov | 10 | Very high |
| Dec | 12 | Extreme |
Where is Geelong?
Geelong sits at 38.1°S, 144.4°E, 23 m above sea level, in Australia. The nearest listed city is Highton, 5.0 km away.
Topography around Geelong
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Geelong.
Within 3 km, the terrain around Geelong has only modest variations in elevation — a maximum elevation change of 70 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 241 m; within 80 km, large variations in elevation — a maximum elevation change of 915 m.
The land around Geelong is covered by artificial surfaces (52%) and water (28%) within 3 km, grassland (43%) within 16 km, and grassland (33%) and water (32%) 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 Geelong (-38.1471°, 144.3607°, elevation 23 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.