Thredbo weather in December
December in Thredbo: nice, rainy, with clean air — not the best time to visit.
#10 of 12 months in Thredbo · #595 of 604 destinations to visit in December · comfort 26/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Thredbo climate normals — December
| Daytime high | 20°C / 68°F | 😎 nice |
|---|---|---|
| Nighttime low | 9°C / 47°F | |
| Feels like (high) | 19°C / 66°F | |
| Rainfall | 98 mm / 3.9 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 8°C / 46°F | |
| Sunshine | 12.4 h/day | |
| Daylight | 14.6 h | |
| Wind | 13 km/h / 8 mph | |
| Snowfall | 0.4 cm / 0.2 in | |
| Air quality (US AQI) | 25 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Thredbo in December — FAQ
- Is December a good time to visit Thredbo?
- December in Thredbo: nice, rainy, with clean air — not the best time to visit. It ranks #10 of 12 months for Thredbo on SeasonMap's comfort score (26/100).
- What is the weather like in Thredbo in December?
- In December, Thredbo averages a daily high of 19.8°C and a low of 8.6°C, with about 98.3 mm of rain over roughly 12.8 rainy days.
- What is the air quality in Thredbo in December?
- Thredbo has a mean US Air Quality Index of about 25 in December.