December · Australia
Best time to visit Barossa Valley in December Weather, crowds & prices
Weather in Barossa Valley in December
Average temperature 22°C, 20 mm of rain, about 31 days with 6+ hours of sunshine and 50% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
10.0/10
Ranked #1 of 12 months
- Avg temp
- 22°C
- Rainfall
- 20 mm
- Humidity
- 50%
- Days with 6h+ sun
- 31
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Barossa Valley scores 10.0/10 for sightseeing and cultural travel - the single best month of the year. Expect around 22°C, 20 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Barossa Valley is South Australia’s wine heartland-shiraz estates and stone-town cellar doors. Best window: October-April in the Southern Hemisphere.
December in Barossa Valley tops the year's climate scores
At 22°C (71°F) this is comfortable city weather in December, with sightseeing easiest before lunch and after the afternoon peak.
With around 20 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 14.3 hours of daylight fill the rest.
On our climate-comfort scale this is the top-ranked month of the year for Barossa Valley at 10/10 — the reference point every other month on this page is measured against.
Pack light clothing, a hat and real sun protection.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Barossa Valley in December?
- In December, Barossa Valley averages 22°C, 20 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 10.0/10.
- Is December a good time to visit Barossa Valley?
- December earns a 10.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Barossa Valley in December?
- Expect about 20 mm of rain in December. Average humidity is 50% and there are about 31 days with 6+ hours of sunshine.
Curated in Barossa Valley
Tickets & experiences
Things to do in Barossa Valley
Barossa Valley, Australia. Live activities and tours from GetYourGuide, matched to this destination.