January is one of the warmer months of the year in Roebourne, with average highs near 39.7°C and lows around 26.4°C (mean 33.1°C). It is a relatively wet time of year, averaging 63 mm of rainfall and 51% relative humidity across the period.
January is one of the warmer months of the year in Roebourne. Across 45 years of records, the warmest January in Roebourne was 1991 — when the month averaged 35.8°C — while the coldest were 2000 and 2012 at 30.1°C. Typical January days reach 39.7°C with nights near 26.4°C. The long-term January temperature trend is broadly flat.
January is a relatively wet time of year in Roebourne, averaging 63 mm of rainfall. The wettest January on record was 2006 with 220 mm, while the driest was 2024 at 0 mm.
Relative humidity in Roebourne during January averages 51%. The most humid January was 2011 at 71%, and the least humid was 1996 at 38%.
January receives about 7.5 kWh/m²/day of solar energy in Roebourne. The sunniest January was 2002 at 8.2 kWh/m²/day, and the cloudiest was 2006 at 6.3.
Average wind speed in Roebourne during January is 4.1 m/s. The windiest January was 2010 at 4.8 m/s, while the calmest were 2001 and 2025 at 3.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 33.0°C | 33.5°C | 33.0°C | 32.2°C | 33.9°C | +0.9°C |
| Avg High | 39.8°C | 40.5°C | 39.8°C | 38.3°C | 40.4°C | +0.6°C |
| Avg Low | 26.2°C | 26.5°C | 26.2°C | 26.2°C | 27.3°C | +1.1°C |
| Avg Rain | 61 mm | 40 mm | 75 mm | 84 mm | 50 mm | -11 mm |
January temperatures in Roebourne have risen by about 0.8°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 17.9°C (2006) to a record high of 48.5°C (1998).
Rainfall in January is a relatively wet time of year, averaging 63 mm, with a wettest year of 220 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A quieter season to visit Roebourne
If your dates are flexible, the more temperate months of August and June tend to be the most comfortable for visiting Roebourne. That said, January — with days averaging 39.7°C and nights around 26.4°C (mean 33.1°C) and moderate rainfall (63 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 37.0°C | 32.2°C | 27.3°C | 42.2°C | 24.4°C | 215 mm | 64% | 3.4 m/s | 6.4 |
| 2024 | 42.3°C | 34.5°C | 26.7°C | 47.3°C | 23.4°C | 0 mm | 43% | 4.7 m/s | 7.6 |
| 2023 | 40.7°C | 33.9°C | 27.0°C | 47.0°C | 24.3°C | 15 mm | 45% | 4.2 m/s | 7.4 |
| 2022 | 41.3°C | 34.2°C | 27.1°C | 48.1°C | 24.1°C | 3 mm | 47% | 4.4 m/s | 7.6 |
| 2021 | 41.5°C | 34.7°C | 27.8°C | 46.1°C | 23.3°C | 22 mm | 43% | 4.2 m/s | 7.7 |
| 2020 | 39.8°C | 33.7°C | 27.6°C | 44.8°C | 25.3°C | 43 mm | 51% | 3.9 m/s | 7.3 |
| 2019 | 40.3°C | 33.9°C | 27.6°C | 47.6°C | 24.0°C | 29 mm | 49% | 4 m/s | 7.4 |
| 2018 | 38.6°C | 32.8°C | 27.0°C | 43.6°C | 21.5°C | 69 mm | 56% | 3.7 m/s | 7.1 |
| 2017 | 38.4°C | 32.2°C | 26.0°C | 45.8°C | 23.0°C | 78 mm | 55% | 4.6 m/s | 7 |
| 2016 | 38.7°C | 32.2°C | 25.7°C | 44.3°C | 22.5°C | 48 mm | 47% | 4.4 m/s | 7.1 |
| 2015 | 39.4°C | 32.9°C | 26.4°C | 45.2°C | 23.7°C | 23 mm | 52% | 4.3 m/s | 7.8 |
| 2014 | 38.6°C | 32.1°C | 25.6°C | 43.7°C | 22.1°C | 56 mm | 57% | 3.6 m/s | 7.2 |
| 2013 | 37.0°C | 31.7°C | 26.3°C | 43.9°C | 20.5°C | 168 mm | 60% | 3.8 m/s | 6.9 |
| 2012 | 35.1°C | 30.1°C | 25.2°C | 42.3°C | 22.7°C | 183 mm | 65% | 4.1 m/s | 6.8 |
| 2011 | 35.1°C | 30.6°C | 26.2°C | 41.1°C | 24.2°C | 170 mm | 71% | 3.7 m/s | 6.6 |
| 2010 | 41.3°C | 33.7°C | 26.1°C | 46.8°C | 22.7°C | 21 mm | 47% | 4.8 m/s | 7.6 |
| 2009 | 39.9°C | 33.2°C | 26.5°C | 45.3°C | 22.2°C | 130 mm | 54% | 4 m/s | 7.4 |
| 2008 | 40.1°C | 33.8°C | 27.6°C | 46.1°C | 25.5°C | 28 mm | 51% | 4 m/s | 7.7 |
| 2007 | 41.4°C | 33.7°C | 26.0°C | 47.1°C | 18.0°C | 26 mm | 40% | 4.6 m/s | 7.8 |
| 2006 🌧️ | 35.8°C | 30.2°C | 24.6°C | 44.5°C | 17.9°C | 220 mm | 64% | 4.6 m/s | 6.3 |
| 2005 | 42.7°C | 34.8°C | 26.9°C | 45.9°C | 24.7°C | 12 mm | 45% | 4.2 m/s | 7.9 |
| 2004 | 41.3°C | 33.9°C | 26.5°C | 46.9°C | 24.0°C | 34 mm | 47% | 4 m/s | 7.7 |
| 2003 | 41.4°C | 34.5°C | 27.6°C | 47.6°C | 23.0°C | 67 mm | 44% | 4.3 m/s | 7.5 |
| 2002 | 40.6°C | 33.0°C | 25.4°C | 45.9°C | 22.5°C | 8 mm | 45% | 4 m/s | 8.2 |
| 2001 | 38.4°C | 32.5°C | 26.5°C | 44.2°C | 24.2°C | 138 mm | 58% | 3.4 m/s | 7 |
| 2000 ❄️ | 35.9°C | 30.1°C | 24.3°C | 40.5°C | 21.3°C | 84 mm | 61% | 3.5 m/s | 7.5 |
| 1999 | 40.2°C | 33.7°C | 27.2°C | 45.5°C | 24.6°C | 19 mm | 51% | 3.8 m/s | 7.7 |
| 1998 | 41.4°C | 33.8°C | 26.2°C | 48.5°C | 22.3°C | 7 mm | 48% | 4.5 m/s | 7.5 |
| 1997 | 35.8°C | 30.8°C | 25.8°C | 43.0°C | 24.2°C | 151 mm | 66% | 4.1 m/s | 6.6 |
| 1996 | 42.5°C | 34.8°C | 27.1°C | 46.1°C | 23.7°C | 7 mm | 38% | 4 m/s | 8 |
| 1995 | 40.3°C | 32.9°C | 25.4°C | 45.4°C | 21.4°C | 21 mm | 48% | 4.7 m/s | 7.8 |
| 1994 | 41.3°C | 34.2°C | 27.2°C | 45.1°C | 25.4°C | 18 mm | 46% | 3.9 m/s | 7.9 |
| 1993 | 41.0°C | 33.9°C | 26.9°C | 46.9°C | 24.6°C | 58 mm | 45% | 3.9 m/s | 7.9 |
| 1992 | 40.6°C | 32.9°C | 25.1°C | 46.6°C | 22.1°C | 11 mm | 41% | 4.3 m/s | 8.1 |
| 1991 🔥 | 43.7°C | 35.8°C | 28.0°C | 47.8°C | 25.4°C | 19 mm | 39% | 4.2 m/s | 7.9 |
| 1990 | 38.2°C | 32.2°C | 26.3°C | 44.3°C | 21.7°C | 84 mm | 55% | 4.6 m/s | 7.3 |
| 1989 | 39.9°C | 32.8°C | 25.7°C | 45.1°C | 22.8°C | 28 mm | 46% | 4 m/s | 7.8 |
| 1988 | 41.8°C | 34.3°C | 26.7°C | 48.4°C | 24.0°C | 11 mm | 43% | 3.9 m/s | 8 |
| 1987 | 38.6°C | 32.0°C | 25.5°C | 44.9°C | 19.7°C | 141 mm | 50% | 4.4 m/s | 7.4 |
| 1986 | 39.1°C | 32.5°C | 25.8°C | 44.2°C | 24.0°C | 61 mm | 54% | 3.9 m/s | 7.5 |
| 1985 | 41.6°C | 33.8°C | 26.1°C | 46.6°C | 22.1°C | 92 mm | 42% | 4.3 m/s | 7.6 |
| 1984 | 39.9°C | 33.2°C | 26.5°C | 45.1°C | 24.6°C | 32 mm | 49% | 4 m/s | 7.4 |
| 1983 | 39.9°C | 32.8°C | 25.8°C | 44.6°C | 23.0°C | 20 mm | 45% | 4.4 m/s | — |
| 1982 | 37.9°C | 32.0°C | 26.1°C | 45.8°C | 21.5°C | 108 mm | 56% | 4.1 m/s | — |
| 1981 | 39.9°C | 33.5°C | 27.2°C | 46.7°C | 24.8°C | 53 mm | 53% | 4.2 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 39.7°C with lows near 26.4°C (mean 33.1°C), based on 45 years of NASA POWER data.
January averages 63 mm of rainfall in Roebourne, a relatively wet time of year. The wettest on record was 220 mm in 2006.
The hottest January reached 48.5°C in 1998. The coldest dipped to 17.9°C in 2006.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.8°C. Daytime highs moved from 39.8°C to 40.6°C and overnight lows from 26.3°C to 27.2°C over the same span.
January is one of the warmer months of the year in Roebourne and a relatively wet time of year, so plan for around 39.7°C daytime highs and 26.4°C at night.
Not quite — January is the 12th coolest month in Roebourne, averaging 33.1°C.
For January in Roebourne, pack light, breathable clothing and sun protection, with typical highs of 39.7°C and lows of 26.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 51% — relatively dry.
Average wind speed in January is 4.1 m/s. The windiest January on record averaged 4.8 m/s (2010).
The wettest January on record was 2006 with 220 mm. On average, January sees 63 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 Roebourne 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.
