December · Australia
Best time to visit Newcastle in December Weather, crowds & prices
Weather in Newcastle in December
Average temperature 22°C, 46 mm of rain, about 31 days with 6+ hours of sunshine and 72% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
9.3/10
Ranked #1 of 12 months
- Avg temp
- 22°C
- Rainfall
- 46 mm
- Humidity
- 72%
- Days with 6h+ sun
- 31
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Newcastle scores 9.3/10 for beach and coastal travel - the single best month of the year. Expect around 22°C, 46 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Newcastle mixes surf beaches with a harbour city energy-coastal baths and easy day trips north of Sydney. Best window: November through March in the Southern Hemisphere.
December in Newcastle — the year's strongest window
With 22°C (72°F) on average, December delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
Budget for roughly 46 mm of rain this month — a flexible day or two helps — with about 31 days with 6+ hours of sunshine and 14.2 hours of daylight to work around it.
On our climate-comfort scale this is the top-ranked month of the year for Newcastle at 9.3/10 — the reference point every other month on this page is measured against.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
Expect 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 Newcastle in December?
- In December, Newcastle averages 22°C, 46 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.3/10.
- Is December a good time to visit Newcastle?
- December earns a 9.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Newcastle in December?
- Expect about 46 mm of rain in December. Average humidity is 72% and there are about 31 days with 6+ hours of sunshine.
Curated in Newcastle
Tickets & experiences
Things to do in Newcastle
Newcastle, Australia. Live activities and tours from GetYourGuide, matched to this destination.