Newcastle weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Excellent
Best time to visit: August – May
What is the weather like in Newcastle in January?
In January, Newcastle is warm: daytime highs average 27 °C, and nights cool down to about 20 °C. The sea averages 22.7 °C – refreshing for a swim. The sun shines for around 8 hours a day. Rain is frequent, with about 10 rainy days and 68 mm in total. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is an excellent month for a holiday in Newcastle.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 84 | 83 | 81 |
| Day | 26° | 27° | 26° |
| Night | 18° | 20° | 20° |
| Sea | 21° | 23° | 23° |
| Sun | 8 h | 8 h | 7 h |
| Rain days | 10 | 10 | 10 |
More details for January
- Daylight
- 14 h 6 min05:59 – 20:04
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 17 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 53 %on averageAll months
- Hot days
- 6 days30 °C or moreAll months
- Time zone
- UTC+11Australia/Sydney
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %80 %
- Few rainy daysweight 30 %58 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Newcastle in January: quick answers
Is Newcastle hot in January?
Warm rather than hot: in January, daytime highs in Newcastle average 27 °C and nights cool to about 20 °C. On about 6 days the thermometer climbs to 30 °C or more.
Can you swim in Newcastle in January?
Yes. In January the sea averages 22.7 °C – refreshing for a swim.
Does it rain much in Newcastle in January?
Rain is frequent, with about 10 rainy days and 68 mm in total.
Newcastle month by month
The whole year in NewcastleAll destinations: AustraliaWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences