Warrnambool Weather in December
During December, Warrnambool experiences pleasant daytime temperatures of 22°C (72°F) and cooler nights around 12°C (54°F). Some rainfall is typical during this period.
Rainfall in Warrnambool in December
You can typically expect 8 days of rain this month, averaging around 56 mm (2.2 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Warrnambool in December
December in Warrnambool is generally perfect, with days reaching 22°C (72°F) and nights settling around 12°C (54°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 12°C (54°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.If you're a fan of comfortable temperatures and drier conditions, December is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Australia, check out our Warrnambool's climate page.
Warrnambool Temperature in December
Min Temperature
12°C (54°F)
Max Temperature
22°C (72°F)
Chance of Rain
27%
Precipitation
56 mm (2.2 in)
Rainy days
8 days
Daily Historical Temperatures
36-year average (1990-2025)
Based on our historical records, temperatures in Warrnambool typically stay consistent throughout December, with daily highs averaging around 22°C (72°F). Nights are cool, with lows typically ranging from 11°C (52°F) to 13°C (55°F).
Average temperatures in December
Daily Historical Precipitation
36-year average (1990-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Warrnambool in December
Browse day-by-day weather records for Warrnambool spanning 37 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Warrnambool historical weather extremes in December
Based on 35 years of weather observations in Warrnambool between 1990 and 2025, these are the recorded extremes.
- On December 31, 2009, temperatures climbed to 38°C (100°F), marking the warmest December day on record.
- The coldest December day was on December 27, 1993, with a maximum of 12°C (54°F).
- Warrnambool registered its coldest December night on December 7, 2006, with temperatures dropping to 2°C (36°F).
Best Places in Australia in December
Find out more about the weather in Australia and which places have the best travel conditions in this month. See all of Australia in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Warrnambool in December
For Warrnambool in December, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket.What To Do in Warrnambool in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Australia, check out our Warrnambool's climate page.
See the full Warrnambool climate overview or explore weather in Australia.
