January is one of the warmer months of the year in Narrabri, with average highs near 33.7°C and lows around 18.9°C (mean 26.3°C). It is a relatively wet time of year, averaging 83 mm of rainfall and 51% relative humidity across the period.
January is one of the warmer months of the year in Narrabri. Across 45 years of records, the warmest January in Narrabri was 2019 — when the month averaged 30.8°C — while the coldest was 1984 at 22.6°C. Typical January days reach 33.7°C with nights near 18.9°C. The long-term trend is warming, about 0.3°C per decade.
January is a relatively wet time of year in Narrabri, averaging 83 mm of rainfall. The wettest January on record was 1984 with 250 mm, while the driest was 1981 at 8 mm.
Relative humidity in Narrabri during January averages 51%. The most humid January was 1996 at 67%, and the least humid was 1985 at 32%.
January receives about 7.5 kWh/m²/day of solar energy in Narrabri. The sunniest January was 1985 at 8.3 kWh/m²/day, and the cloudiest was 1984 at 6.3.
Average wind speed in Narrabri during January is 2.5 m/s. The windiest Januarys were 1984, 2000 and 2003 at 2.8 m/s, while the calmest was 2010 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.7°C | 26.0°C | 26.6°C | 26.8°C | 26.8°C | +1.1°C |
| Avg High | 33.5°C | 33.2°C | 34.2°C | 34.1°C | 33.8°C | +0.3°C |
| Avg Low | 17.9°C | 18.7°C | 18.9°C | 19.5°C | 19.7°C | +1.8°C |
| Avg Rain | 86 mm | 97 mm | 66 mm | 87 mm | 78 mm | -9 mm |
January temperatures in Narrabri have stayed relatively stable across the record.
January has ranged from a record low of 9.1°C (2010) to a record high of 46°C (2014).
Rainfall in January is a relatively wet time of year, averaging 83 mm, with a wettest year of 250 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
A good time to visit Narrabri
January is a good time to visit Narrabri, with days averaging 33.7°C and nights around 18.9°C (mean 26.3°C, warmer than Narrabri's yearly average) and higher rainfall. November and March are marginally more temperate, but January still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 34.0°C | 26.7°C | 19.5°C | 40.5°C | 12.3°C | 79 mm | 53% | 2.7 m/s | 7.8 |
| 2024 | 34.8°C | 27.8°C | 20.8°C | 40.3°C | 14.3°C | 64 mm | 56% | 2.4 m/s | 7.1 |
| 2023 | 34.4°C | 26.9°C | 19.4°C | 39.0°C | 14.8°C | 74 mm | 46% | 2.4 m/s | 7.6 |
| 2022 | 32.7°C | 26.0°C | 19.4°C | 36.1°C | 14.3°C | 89 mm | 61% | 2.6 m/s | 7.1 |
| 2021 | 31.0°C | 24.1°C | 17.2°C | 35.2°C | 11.8°C | 69 mm | 60% | 2.4 m/s | 7.5 |
| 2020 | 35.9°C | 29.0°C | 22.1°C | 42.4°C | 17.2°C | 89 mm | 49% | 2.5 m/s | 7.3 |
| 2019 🔥 | 38.2°C | 30.8°C | 23.4°C | 43.8°C | 21.3°C | 36 mm | 39% | 2.4 m/s | 7.9 |
| 2018 | 36.1°C | 28.2°C | 20.3°C | 41.9°C | 13.1°C | 32 mm | 41% | 2.4 m/s | 8.1 |
| 2017 | 36.0°C | 28.6°C | 21.2°C | 41.0°C | 16.6°C | 94 mm | 53% | 2.5 m/s | 7.7 |
| 2016 | 31.6°C | 24.9°C | 18.1°C | 38.0°C | 13.3°C | 118 mm | 58% | 2.5 m/s | 6.7 |
| 2015 | 32.0°C | 25.1°C | 18.3°C | 36.7°C | 13.4°C | 108 mm | 58% | 2.4 m/s | 7 |
| 2014 | 36.4°C | 27.9°C | 19.4°C | 46.0°C | 15.1°C | 15 mm | 37% | 2.6 m/s | 7.8 |
| 2013 | 35.2°C | 27.8°C | 20.3°C | 43.1°C | 16.1°C | 142 mm | 52% | 2.6 m/s | 7.7 |
| 2012 | 29.9°C | 23.4°C | 16.8°C | 34.1°C | 9.5°C | 159 mm | 64% | 2.7 m/s | 6.6 |
| 2011 | 33.5°C | 26.1°C | 18.7°C | 41.6°C | 15.9°C | 48 mm | 58% | 2.5 m/s | 7.5 |
| 2010 | 31.6°C | 25.1°C | 18.5°C | 37.1°C | 9.1°C | 117 mm | 62% | 2 m/s | 7.7 |
| 2009 | 33.8°C | 26.6°C | 19.4°C | 39.0°C | 14.6°C | 40 mm | 52% | 2.2 m/s | 7.6 |
| 2008 | 31.5°C | 24.6°C | 17.7°C | 37.0°C | 13.9°C | 95 mm | 63% | 2.6 m/s | 6.9 |
| 2007 | 34.8°C | 27.3°C | 19.8°C | 40.8°C | 13.7°C | 34 mm | 44% | 2.5 m/s | 7.5 |
| 2006 | 35.9°C | 28.6°C | 21.3°C | 41.2°C | 17.2°C | 56 mm | 51% | 2.4 m/s | 7.5 |
| 2005 | 33.5°C | 25.6°C | 17.6°C | 39.3°C | 12.0°C | 60 mm | 54% | 2.6 m/s | 7.7 |
| 2004 | 32.8°C | 26.2°C | 19.7°C | 43.7°C | 13.6°C | 187 mm | 55% | 2.5 m/s | 7.3 |
| 2003 | 36.5°C | 27.7°C | 18.9°C | 42.5°C | 13.5°C | 18 mm | 38% | 2.8 m/s | 8 |
| 2002 | 34.4°C | 26.3°C | 18.2°C | 38.7°C | 12.4°C | 36 mm | 41% | 2.6 m/s | 8 |
| 2001 | 36.3°C | 28.1°C | 20.0°C | 42.6°C | 13.7°C | 99 mm | 43% | 2.5 m/s | 7.7 |
| 2000 | 32.2°C | 24.5°C | 16.8°C | 41.5°C | 12.5°C | 32 mm | 49% | 2.8 m/s | 7.6 |
| 1999 | 34.4°C | 27.4°C | 20.3°C | 38.9°C | 16.9°C | 69 mm | 51% | 2.2 m/s | 7.3 |
| 1998 | 34.6°C | 27.5°C | 20.4°C | 39.0°C | 15.1°C | 42 mm | 49% | 2.2 m/s | 7.3 |
| 1997 | 30.5°C | 23.4°C | 16.2°C | 35.9°C | 10.3°C | 147 mm | 55% | 2.4 m/s | 7 |
| 1996 | 30.2°C | 24.1°C | 18.1°C | 38.0°C | 15.7°C | 193 mm | 67% | 2.5 m/s | 6.8 |
| 1995 | 29.6°C | 23.4°C | 17.1°C | 35.4°C | 12.0°C | 181 mm | 62% | 2.7 m/s | 6.7 |
| 1994 | 35.8°C | 27.4°C | 18.9°C | 42.2°C | 14.8°C | 32 mm | 40% | 2.7 m/s | 8.1 |
| 1993 | 34.8°C | 27.6°C | 20.5°C | 38.4°C | 14.9°C | 71 mm | 51% | 2.4 m/s | 7.6 |
| 1992 | 33.8°C | 25.5°C | 17.3°C | 38.9°C | 12.9°C | 38 mm | 45% | 2.4 m/s | 8.2 |
| 1991 | 32.4°C | 25.5°C | 18.6°C | 37.9°C | 11.3°C | 152 mm | 57% | 2.4 m/s | 7.2 |
| 1990 | 35.8°C | 27.8°C | 19.9°C | 44.1°C | 11.6°C | 43 mm | 44% | 2.7 m/s | 7.5 |
| 1989 | 31.6°C | 23.9°C | 16.2°C | 37.3°C | 11.9°C | 41 mm | 53% | 2.7 m/s | 7.8 |
| 1988 | 34.1°C | 26.1°C | 18.1°C | 39.7°C | 11.8°C | 108 mm | 53% | 2.6 m/s | 8 |
| 1987 | 33.6°C | 26.1°C | 18.7°C | 39.8°C | 11.4°C | 132 mm | 55% | 2.4 m/s | 7.3 |
| 1986 | 32.4°C | 24.3°C | 16.3°C | 39.1°C | 11.4°C | 56 mm | 47% | 2.5 m/s | 8.1 |
| 1985 | 36.7°C | 27.6°C | 18.4°C | 39.6°C | 13.9°C | 26 mm | 32% | 2.6 m/s | 8.3 |
| 1984 ❄️ 🌧️ | 28.7°C | 22.6°C | 16.4°C | 33.7°C | 9.4°C | 250 mm | 67% | 2.8 m/s | 6.3 |
| 1983 | 33.0°C | 24.9°C | 16.8°C | 37.4°C | 9.2°C | 80 mm | 49% | 2.4 m/s | — |
| 1982 | 35.0°C | 27.2°C | 19.5°C | 41.0°C | 13.7°C | 75 mm | 49% | 2.5 m/s | — |
| 1981 | 36.7°C | 28.8°C | 20.9°C | 41.1°C | 16.7°C | 8 mm | 40% | 2.3 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 33.7°C with lows near 18.9°C (mean 26.3°C), based on 45 years of NASA POWER data.
January averages 83 mm of rainfall in Narrabri, a relatively wet time of year. The wettest on record was 250 mm in 1984.
The hottest January reached 46°C in 2014. The coldest dipped to 9.1°C in 2010.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from 18.4°C to 19.3°C while daytime highs eased from 34°C to 33.4°C, narrowing the gap between day and night.
January is one of the warmer months of the year in Narrabri and a relatively wet time of year, so plan for around 33.7°C daytime highs and 18.9°C at night.
Not quite — January is the 12th coolest month in Narrabri, averaging 26.3°C.
For January in Narrabri, pack light, breathable clothing and sun protection, with typical highs of 33.7°C and lows of 18.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 51% — relatively dry.
Average wind speed in January is 2.5 m/s. The windiest January on record averaged 2.8 m/s (1984).
The wettest January on record was 1984 with 250 mm. On average, January sees 83 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 Narrabri 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.
