January is one of the warmer months of the year in Goulburn, with average highs near 28.5°C and lows around 14.4°C (mean 21.5°C). It is about average for rainfall, averaging 79 mm of rainfall and 63% relative humidity across the period.
January is one of the warmer months of the year in Goulburn. Across 45 years of records, the warmest January in Goulburn was 2019 — when the month averaged 25.5°C — while the coldest was 1989 at 17.9°C. Typical January days reach 28.5°C with nights near 14.4°C. The long-term trend is warming, about 0.3°C per decade.
January is about average for rainfall in Goulburn, averaging 79 mm of rainfall. The wettest January on record was 2016 with 193 mm, while the driest was 2014 at 17 mm.
Relative humidity in Goulburn during January averages 63%. The most humid January was 2022 at 81%, and the least humid was 1985 at 51%.
January receives about 7.2 kWh/m²/day of solar energy in Goulburn. The sunniest Januarys were 1994 and 2009 at 8.2 kWh/m²/day, and the cloudiest was 2016 at 6.2.
Average wind speed in Goulburn during January is 1.3 m/s. The windiest January was 1994 at 1.7 m/s, while the calmest was 1992 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.9°C | 20.9°C | 21.9°C | 22.4°C | 21.0°C | +0.1°C |
| Avg High | 28.2°C | 27.8°C | 29.2°C | 29.7°C | 27.1°C | -1.1°C |
| Avg Low | 13.6°C | 14.0°C | 14.5°C | 15.2°C | 15.0°C | +1.4°C |
| Avg Rain | 71 mm | 89 mm | 63 mm | 78 mm | 105 mm | +34 mm |
January temperatures in Goulburn have fallen by about 0.9°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 6.9°C (2012) to a record high of 41.9°C (2020).
Rainfall in January is about average for rainfall, averaging 79 mm, with a wettest year of 193 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.1°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
One of the best times to visit Goulburn
January is one of the best times to visit Goulburn. Expect days averaging 28.5°C and nights around 14.4°C (mean 21.5°C) — warmer than Goulburn's yearly average — with moderate rainfall (79 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 | 27.0°C | 20.9°C | 14.8°C | 36.3°C | 9.9°C | 129 mm | 71% | 1.4 m/s | 6.8 |
| 2024 | 26.5°C | 20.9°C | 15.3°C | 33.6°C | 11.0°C | 85 mm | 75% | 1.3 m/s | 6.3 |
| 2023 | 26.5°C | 20.3°C | 14.2°C | 34.6°C | 10.1°C | 104 mm | 72% | 1.2 m/s | 6.7 |
| 2022 | 25.0°C | 20.4°C | 15.8°C | 30.7°C | 12.5°C | 171 mm | 81% | 1.2 m/s | 6.4 |
| 2021 | 26.5°C | 20.2°C | 14.0°C | 37.1°C | 9.1°C | 102 mm | 65% | 1.3 m/s | 6.8 |
| 2020 | 31.0°C | 23.3°C | 15.7°C | 41.9°C | 12.8°C | 42 mm | 61% | 1.4 m/s | 7.1 |
| 2019 🔥 | 33.4°C | 25.5°C | 17.6°C | 40.9°C | 12.2°C | 69 mm | 63% | 1.2 m/s | 7.3 |
| 2018 | 31.3°C | 23.4°C | 15.5°C | 40.3°C | 8.3°C | 60 mm | 57% | 1.2 m/s | 7.3 |
| 2017 | 31.6°C | 23.8°C | 16.0°C | 38.1°C | 12.3°C | 21 mm | 59% | 1.4 m/s | 7.4 |
| 2016 🌧️ | 26.5°C | 20.5°C | 14.5°C | 36.5°C | 9.0°C | 193 mm | 70% | 1.3 m/s | 6.2 |
| 2015 | 25.9°C | 20.1°C | 14.4°C | 33.9°C | 8.1°C | 147 mm | 72% | 1.3 m/s | 6.8 |
| 2014 | 30.7°C | 22.6°C | 14.4°C | 39.7°C | 9.9°C | 17 mm | 53% | 1.4 m/s | 7.7 |
| 2013 | 31.4°C | 23.5°C | 15.5°C | 40.5°C | 11.1°C | 115 mm | 56% | 1.4 m/s | 7.7 |
| 2012 | 26.8°C | 20.2°C | 13.7°C | 35.0°C | 6.9°C | 52 mm | 66% | 1.4 m/s | 6.9 |
| 2011 | 28.7°C | 22.2°C | 15.8°C | 38.7°C | 11.6°C | 58 mm | 69% | 1.3 m/s | 6.9 |
| 2010 | 30.3°C | 22.5°C | 14.7°C | 37.9°C | 8.7°C | 44 mm | 60% | 1.4 m/s | 7.6 |
| 2009 | 31.4°C | 23.0°C | 14.6°C | 38.3°C | 10.3°C | 35 mm | 53% | 1.4 m/s | 8.2 |
| 2008 | 28.3°C | 21.5°C | 14.6°C | 35.5°C | 9.7°C | 80 mm | 67% | 1.3 m/s | 7.1 |
| 2007 | 30.7°C | 22.7°C | 14.7°C | 39.9°C | 9.7°C | 27 mm | 55% | 1.4 m/s | 7.8 |
| 2006 | 30.0°C | 22.9°C | 15.7°C | 41.0°C | 12.8°C | 109 mm | 67% | 1.4 m/s | 6.8 |
| 2005 | 29.0°C | 21.8°C | 14.7°C | 39.9°C | 9.7°C | 74 mm | 61% | 1.3 m/s | 7.4 |
| 2004 | 29.6°C | 22.1°C | 14.6°C | 39.1°C | 9.4°C | 65 mm | 57% | 1.4 m/s | 7.5 |
| 2003 | 30.1°C | 22.3°C | 14.4°C | 41.0°C | 9.2°C | 33 mm | 57% | 1.4 m/s | 7.3 |
| 2002 | 27.8°C | 20.9°C | 14.0°C | 34.5°C | 10.5°C | 68 mm | 60% | 1.5 m/s | 7.2 |
| 2001 | 31.0°C | 23.5°C | 15.9°C | 40.3°C | 10.9°C | 88 mm | 60% | 1.3 m/s | 6.8 |
| 2000 | 24.5°C | 18.2°C | 11.8°C | 35.5°C | 7.4°C | 46 mm | 67% | 1.4 m/s | 7.4 |
| 1999 | 29.3°C | 22.6°C | 15.8°C | 38.4°C | 13.4°C | 115 mm | 67% | 1.2 m/s | 6.9 |
| 1998 | 29.8°C | 22.5°C | 15.2°C | 39.0°C | 11.3°C | 84 mm | 62% | 1.4 m/s | 6.6 |
| 1997 | 26.2°C | 19.4°C | 12.5°C | 35.9°C | 7.6°C | 87 mm | 65% | 1.3 m/s | 7.2 |
| 1996 | 26.1°C | 19.9°C | 13.8°C | 36.8°C | 8.7°C | 109 mm | 71% | 1.3 m/s | 6.6 |
| 1995 | 25.0°C | 19.2°C | 13.5°C | 33.6°C | 8.1°C | 146 mm | 72% | 1.3 m/s | 6.3 |
| 1994 | 29.5°C | 21.6°C | 13.7°C | 35.8°C | 9.7°C | 17 mm | 52% | 1.7 m/s | 8.2 |
| 1993 | 28.4°C | 21.5°C | 14.6°C | 36.2°C | 10.7°C | 87 mm | 69% | 1.2 m/s | 7.2 |
| 1992 | 25.6°C | 19.0°C | 12.4°C | 37.6°C | 9.2°C | 111 mm | 68% | 1.1 m/s | 7.6 |
| 1991 | 30.6°C | 23.2°C | 15.9°C | 37.3°C | 10.5°C | 69 mm | 58% | 1.4 m/s | 7.2 |
| 1990 | 27.8°C | 20.4°C | 13.0°C | 40.0°C | 7.5°C | 61 mm | 63% | 1.4 m/s | 7.2 |
| 1989 ❄️ | 23.2°C | 17.9°C | 12.5°C | 31.0°C | 10.3°C | 97 mm | 73% | 1.4 m/s | 7.4 |
| 1988 | 30.8°C | 22.9°C | 15.0°C | 38.0°C | 9.4°C | 46 mm | 60% | 1.2 m/s | 7.7 |
| 1987 | 29.7°C | 21.8°C | 13.9°C | 36.4°C | 7.8°C | 34 mm | 52% | 1.3 m/s | 7.6 |
| 1986 | 25.6°C | 18.8°C | 12.0°C | 33.8°C | 8.1°C | 101 mm | 64% | 1.5 m/s | 7.7 |
| 1985 | 29.8°C | 21.3°C | 12.7°C | 37.8°C | 8.7°C | 17 mm | 51% | 1.4 m/s | 7.8 |
| 1984 | 24.5°C | 18.4°C | 12.4°C | 32.7°C | 7.3°C | 185 mm | 69% | 1.3 m/s | 6.9 |
| 1983 | 29.7°C | 21.6°C | 13.4°C | 38.1°C | 8.4°C | 45 mm | 53% | 1.3 m/s | — |
| 1982 | 29.5°C | 22.1°C | 14.6°C | 39.1°C | 11.1°C | 61 mm | 62% | 1.4 m/s | — |
| 1981 | 31.4°C | 23.6°C | 15.7°C | 38.6°C | 10.7°C | 55 mm | 60% | 1.4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 28.5°C with lows near 14.4°C (mean 21.5°C), based on 45 years of NASA POWER data.
January averages 79 mm of rainfall in Goulburn, about average for rainfall. The wettest on record was 193 mm in 2016.
The hottest January reached 41.9°C in 2020. The coldest dipped to 6.9°C in 2012.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have fallen by about 0.9°C — but days and nights have moved in opposite directions. Overnight lows rose from 13.8°C to 14.8°C while daytime highs eased from 29°C to 26.3°C, narrowing the gap between day and night.
January is one of the warmer months of the year in Goulburn and about average for rainfall, so plan for around 28.5°C daytime highs and 14.4°C at night.
Not quite — January is the 12th coolest month in Goulburn, averaging 21.5°C.
For January in Goulburn, pack light layers you can adjust through the day, with typical highs of 28.5°C and lows of 14.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 63% — moderately humid.
Average wind speed in January is 1.3 m/s. The windiest January on record averaged 1.7 m/s (1994).
The wettest January on record was 2016 with 193 mm. On average, January sees 79 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 Goulburn 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.
