Monthly climate guide
Newcastle weather in January
January in Newcastle is typically warm, with average daytime highs around 27°C (80°F) and night-time lows near 21°C (70°F). The month usually brings about 102 mm of rain (wet) and is often cloudy. Daytime highs are 2°C warmer than December and about the same as February.
What stands out in January
- There's little difference between day and night (around 6°C).
- Humidity near 74% makes 27°C feel stickier than it sounds.
- January brings mid-summer to Newcastle — the seasons are reversed south of the equator.
- Just 360 km apart, but Newcastle runs about 2°C cooler than Canberra this month.
January is typically Newcastle's warmest month.
Avg high
27°C
80°F
Avg low
21°C
70°F
Rainfall
102 mm
wet
Humidity
74%
relative
Sky
56%
cloud · often cloudy
Newcastle weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 27°C / 80°F | 21°C / 70°F | 102 mm | 74% | 56% |
| February | 26°C / 79°F | 21°C / 70°F | 126 mm | 75% | 56% |
| March | 25°C / 77°F | 20°C / 69°F | 123 mm | 76% | 56% |
| April | 23°C / 73°F | 18°C / 65°F | 85 mm | 74% | 49% |
| May | 20°C / 68°F | 15°C / 59°F | 43 mm | 71% | 43% |
| June | 18°C / 64°F | 14°C / 56°F | 89 mm | 75% | 51% |
| July | 17°C / 63°F | 12°C / 54°F | 47 mm | 71% | 40% |
| August | 18°C / 64°F | 12°C / 54°F | 48 mm | 68% | 37% |
| September | 20°C / 69°F | 14°C / 58°F | 45 mm | 67% | 39% |
| October | 23°C / 73°F | 16°C / 61°F | 67 mm | 69% | 49% |
| November | 24°C / 75°F | 18°C / 64°F | 85 mm | 71% | 55% |
| December | 25°C / 78°F | 20°C / 67°F | 84 mm | 72% | 58% |
What to pack for January
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is January a good time to visit Newcastle?
Compare the months in the chart above to find your ideal window.
Best time to visit Newcastle →Other Australia cities in January
Cite or embed this data
Writing about this destination? Copy a ready-made citation or embed a live widget — free, just keep the link.
Newcastle weather in January. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/australia/newcastle/january
<a href="https://weathercompare.eu/weather/australia/newcastle/january">Newcastle weather in January</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/australia/newcastle" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Newcastle weather in January"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/australia/newcastle/january">Newcastle weather in January</a> – WeatherCompare</p>
Newcastle in January: quick answers
Is January a good time to visit Newcastle?
January is one of the wetter months in Newcastle, with about 102 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Newcastle in January?
Average highs are about 27°C (80°F) and average lows about 21°C (70°F), based on 10 years of daily data.
Does it rain a lot in Newcastle in January?
Newcastle typically gets around 102 mm of rain in January — wet.
Figures are long-term averages for the area around Newcastle (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.