January is one of the warmer months of the year in Newcastle, with average highs near 26.2°C and lows around 20.8°C (mean 23.5°C). It is about average for rainfall, averaging 94 mm of rainfall and 73% relative humidity across the period.
January is one of the warmer months of the year in Newcastle. Across 45 years of records, the warmest January in Newcastle was 2019 — when the month averaged 25.6°C — while the coldest was 1997 at 21.6°C. Typical January days reach 26.2°C with nights near 20.8°C. The long-term trend is warming, about 0.3°C per decade.
January is about average for rainfall in Newcastle, averaging 94 mm of rainfall. The wettest January on record was 2016 with 278 mm, while the driest was 2003 at 13 mm.
Relative humidity in Newcastle during January averages 73%. The most humid January was 2016 at 80%, and the least humid was 1985 at 66%.
January receives about 6.5 kWh/m²/day of solar energy in Newcastle. The sunniest January was 1985 at 7.6 kWh/m²/day, and the cloudiest was 1996 at 5.4.
Average wind speed in Newcastle during January is 2.9 m/s. The windiest Januarys were 1997, 2003 and 2025 at 3.4 m/s, while the calmest was 2019 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.0°C | 23.2°C | 23.5°C | 23.9°C | 23.8°C | +0.8°C |
| Avg High | 25.9°C | 26.0°C | 26.2°C | 26.8°C | 26.2°C | +0.3°C |
| Avg Low | 20.2°C | 20.5°C | 20.7°C | 21.2°C | 21.4°C | +1.2°C |
| Avg Rain | 108 mm | 92 mm | 64 mm | 103 mm | 112 mm | +4 mm |
January temperatures in Newcastle have risen by about 0.5°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 16.3°C (1990) to a record high of 38.2°C (2013).
Rainfall in January is about average for rainfall, averaging 94 mm, with a wettest year of 278 mm.
One of the best times to visit Newcastle
January is one of the best times to visit Newcastle. Expect days averaging 26.2°C and nights around 20.8°C (mean 23.5°C) — warmer than Newcastle's yearly average — with higher rainfall (94 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 26.0°C | 23.7°C | 21.3°C | 35.0°C | 19.0°C | 173 mm | 76% | 3.4 m/s | 5.9 |
| 2024 | 27.2°C | 24.7°C | 22.3°C | 36.0°C | 20.4°C | 85 mm | 74% | 3 m/s | 6.2 |
| 2023 | 25.3°C | 23.0°C | 20.7°C | 30.3°C | 17.4°C | 123 mm | 75% | 3 m/s | 6.7 |
| 2022 | 25.8°C | 23.8°C | 21.8°C | 29.5°C | 20.5°C | 114 mm | 77% | 3 m/s | 6.1 |
| 2021 | 25.3°C | 22.9°C | 20.5°C | 32.1°C | 17.7°C | 116 mm | 75% | 3 m/s | 6.4 |
| 2020 | 27.7°C | 24.8°C | 21.9°C | 36.2°C | 20.4°C | 61 mm | 76% | 2.5 m/s | 6.2 |
| 2019 🔥 | 28.9°C | 25.6°C | 22.4°C | 34.2°C | 20.7°C | 58 mm | 76% | 2.4 m/s | 7.1 |
| 2018 | 27.0°C | 24.0°C | 21.1°C | 37.1°C | 17.9°C | 22 mm | 71% | 3.1 m/s | 7.1 |
| 2017 | 28.3°C | 25.1°C | 21.9°C | 36.6°C | 20.3°C | 48 mm | 71% | 2.8 m/s | 6.4 |
| 2016 🌧️ | 24.7°C | 22.6°C | 20.4°C | 30.7°C | 17.9°C | 278 mm | 80% | 2.9 m/s | 6.2 |
| 2015 | 26.2°C | 23.7°C | 21.2°C | 30.6°C | 17.5°C | 179 mm | 77% | 2.9 m/s | 6.7 |
| 2014 | 26.1°C | 23.2°C | 20.3°C | 33.3°C | 18.8°C | 20 mm | 71% | 3.1 m/s | 7.2 |
| 2013 | 27.0°C | 24.0°C | 21.0°C | 38.2°C | 18.9°C | 196 mm | 74% | 3 m/s | 6.3 |
| 2012 | 25.2°C | 22.8°C | 20.5°C | 30.4°C | 16.7°C | 106 mm | 74% | 3.1 m/s | 6.1 |
| 2011 | 26.8°C | 24.1°C | 21.5°C | 33.3°C | 18.6°C | 53 mm | 74% | 3.1 m/s | 6.5 |
| 2010 | 27.3°C | 24.4°C | 21.4°C | 35.4°C | 17.9°C | 69 mm | 74% | 2.7 m/s | 6.5 |
| 2009 | 27.1°C | 23.7°C | 20.3°C | 34.4°C | 17.7°C | 23 mm | 69% | 3 m/s | 7 |
| 2008 | 25.4°C | 23.2°C | 21.0°C | 30.4°C | 19.3°C | 121 mm | 77% | 3.1 m/s | 5.8 |
| 2007 | 26.4°C | 23.5°C | 20.5°C | 32.6°C | 18.3°C | 28 mm | 70% | 3.2 m/s | 7.2 |
| 2006 | 26.6°C | 24.2°C | 21.8°C | 36.1°C | 20.3°C | 73 mm | 77% | 3.1 m/s | 6 |
| 2005 | 25.9°C | 23.2°C | 20.4°C | 31.7°C | 17.6°C | 84 mm | 73% | 2.9 m/s | 6.7 |
| 2004 | 27.6°C | 24.5°C | 21.4°C | 33.9°C | 18.5°C | 97 mm | 71% | 2.7 m/s | 6.6 |
| 2003 | 26.1°C | 23.4°C | 20.7°C | 34.7°C | 19.5°C | 13 mm | 69% | 3.4 m/s | 6.8 |
| 2002 | 25.9°C | 23.3°C | 20.6°C | 32.6°C | 17.5°C | 50 mm | 70% | 3 m/s | 6.9 |
| 2001 | 27.1°C | 24.2°C | 21.4°C | 34.6°C | 19.6°C | 82 mm | 71% | 3.1 m/s | 6.6 |
| 2000 | 24.1°C | 21.7°C | 19.2°C | 33.8°C | 17.6°C | 72 mm | 73% | 3.2 m/s | 6.4 |
| 1999 | 26.5°C | 24.1°C | 21.7°C | 31.1°C | 19.5°C | 103 mm | 75% | 3 m/s | 6.6 |
| 1998 | 27.7°C | 24.7°C | 21.7°C | 33.2°C | 20.1°C | 85 mm | 72% | 2.8 m/s | 6.8 |
| 1997 ❄️ | 24.1°C | 21.6°C | 19.1°C | 28.9°C | 16.7°C | 118 mm | 72% | 3.4 m/s | 6.3 |
| 1996 | 25.1°C | 22.8°C | 20.5°C | 32.2°C | 19.1°C | 148 mm | 79% | 2.9 m/s | 5.4 |
| 1995 | 24.0°C | 21.8°C | 19.6°C | 27.9°C | 17.5°C | 116 mm | 76% | 3.1 m/s | 5.9 |
| 1994 | 27.2°C | 24.0°C | 20.9°C | 33.9°C | 18.0°C | 58 mm | 66% | 2.8 m/s | 7.2 |
| 1993 | 26.7°C | 23.7°C | 20.8°C | 32.8°C | 18.4°C | 75 mm | 76% | 2.5 m/s | 6.1 |
| 1992 | 24.7°C | 21.9°C | 19.2°C | 31.5°C | 16.3°C | 65 mm | 76% | 2.7 m/s | 6.5 |
| 1991 | 28.2°C | 25.0°C | 21.7°C | 33.0°C | 19.9°C | 81 mm | 70% | 2.7 m/s | 6.7 |
| 1990 | 25.5°C | 22.6°C | 19.8°C | 32.4°C | 16.3°C | 74 mm | 74% | 2.8 m/s | 6 |
| 1989 | 23.7°C | 21.7°C | 19.7°C | 30.1°C | 18.2°C | 183 mm | 76% | 3 m/s | 6.2 |
| 1988 | 26.0°C | 23.4°C | 20.7°C | 30.7°C | 18.4°C | 140 mm | 76% | 2.8 m/s | 7.1 |
| 1987 | 27.6°C | 24.4°C | 21.2°C | 35.4°C | 17.2°C | 98 mm | 72% | 2.7 m/s | 6.7 |
| 1986 | 25.3°C | 22.5°C | 19.8°C | 32.0°C | 16.7°C | 165 mm | 69% | 3.1 m/s | 6.9 |
| 1985 | 26.8°C | 23.2°C | 19.6°C | 32.1°C | 16.9°C | 16 mm | 66% | 2.7 m/s | 7.6 |
| 1984 | 24.4°C | 21.9°C | 19.3°C | 30.0°C | 16.5°C | 177 mm | 73% | 2.8 m/s | 5.9 |
| 1983 | 25.9°C | 22.9°C | 19.9°C | 32.8°C | 17.4°C | 50 mm | 69% | 2.6 m/s | — |
| 1982 | 26.2°C | 23.3°C | 20.4°C | 34.2°C | 18.6°C | 108 mm | 76% | 2.8 m/s | — |
| 1981 | 26.8°C | 24.0°C | 21.3°C | 31.4°C | 18.4°C | 34 mm | 74% | 2.7 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 26.2°C with lows near 20.8°C (mean 23.5°C), based on 45 years of NASA POWER data.
January averages 94 mm of rainfall in Newcastle, about average for rainfall. The wettest on record was 278 mm in 2016.
The hottest January reached 38.2°C in 2013. The coldest dipped to 16.3°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.5°C — but days and nights have moved in opposite directions. Overnight lows rose from 20.1°C to 21.3°C while daytime highs eased from 26°C to 25.9°C, narrowing the gap between day and night.
January is one of the warmer months of the year in Newcastle and about average for rainfall, so plan for around 26.2°C daytime highs and 20.8°C at night.
Not quite — January is the 12th coolest month in Newcastle, averaging 23.5°C.
For January in Newcastle, pack light layers you can adjust through the day, with typical highs of 26.2°C and lows of 20.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 73% — moderately humid.
Average wind speed in January is 2.9 m/s. The windiest January on record averaged 3.4 m/s (1997).
The wettest January on record was 2016 with 278 mm. On average, January sees 94 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Newcastle behaves each January, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for January specifically, along with year-by-year records and how the month has changed over the decades.
