January is one of the warmer months of the year in Ballarat, with average highs near 27.4°C and lows around 11.5°C (mean 19.5°C). It is about average for rainfall, averaging 45 mm of rainfall and 58% relative humidity across the period.
January is one of the warmer months of the year in Ballarat. Across 45 years of records, the warmest January in Ballarat was 2019 — when the month averaged 22.6°C — while the coldest was 1992 at 16°C. Typical January days reach 27.4°C with nights near 11.5°C. The long-term trend is warming, about 0.5°C per decade.
January is about average for rainfall in Ballarat, averaging 45 mm of rainfall. The wettest January on record was 2011 with 173 mm, while the driest was 2009 at 1 mm.
Relative humidity in Ballarat during January averages 58%. The most humid January was 2011 at 73%, and the least humid was 2009 at 48%.
January receives about 7.3 kWh/m²/day of solar energy in Ballarat. The sunniest January was 2009 at 8.4 kWh/m²/day, and the cloudiest were 2002 and 2015 at 6.7.
Average wind speed in Ballarat during January is 3.2 m/s. The windiest Januarys were 1990, 1997 and 2012 at 3.6 m/s, while the calmest was 2011 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.7°C | 18.9°C | 19.6°C | 20.3°C | 20.0°C | +1.3°C |
| Avg High | 26.7°C | 26.7°C | 27.6°C | 28.5°C | 27.6°C | +0.9°C |
| Avg Low | 10.6°C | 11.1°C | 11.6°C | 12.1°C | 12.3°C | +1.7°C |
| Avg Rain | 41 mm | 47 mm | 31 mm | 45 mm | 69 mm | +28 mm |
January temperatures in Ballarat have risen by about 0.6°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 2.7°C (1987) to a record high of 43.5°C (1982).
Rainfall in January is about average for rainfall, averaging 45 mm, with a wettest year of 173 mm.
One of the best times to visit Ballarat
January is one of the best times to visit Ballarat. Expect days averaging 27.4°C and nights around 11.5°C (mean 19.5°C) — warmer than Ballarat's yearly average — with moderate rainfall (45 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 | 28.5°C | 20.6°C | 12.6°C | 38.8°C | 7.9°C | 27 mm | 54% | 3 m/s | 7.3 |
| 2024 | 26.2°C | 19.3°C | 12.3°C | 32.1°C | 7.9°C | 89 mm | 69% | 2.9 m/s | 6.9 |
| 2023 | 27.1°C | 19.4°C | 11.7°C | 35.3°C | 7.6°C | 56 mm | 63% | 2.8 m/s | 7.5 |
| 2022 | 30.0°C | 22.3°C | 14.7°C | 35.5°C | 10.5°C | 69 mm | 61% | 3 m/s | 7.1 |
| 2021 | 25.7°C | 18.5°C | 11.3°C | 35.9°C | 6.3°C | 105 mm | 65% | 3.3 m/s | 7.1 |
| 2020 | 28.3°C | 19.7°C | 11.2°C | 39.7°C | 6.8°C | 65 mm | 57% | 3.1 m/s | 7.1 |
| 2019 🔥 | 32.1°C | 22.6°C | 13.2°C | 42.1°C | 6.4°C | 6 mm | 49% | 3 m/s | 8 |
| 2018 | 30.2°C | 21.6°C | 13.0°C | 41.4°C | 7.3°C | 37 mm | 54% | 3 m/s | 7.6 |
| 2017 | 28.8°C | 20.4°C | 12.1°C | 37.6°C | 7.8°C | 34 mm | 53% | 3 m/s | 7.5 |
| 2016 | 28.3°C | 20.6°C | 13.0°C | 40.6°C | 8.1°C | 52 mm | 57% | 3.1 m/s | 7 |
| 2015 | 26.0°C | 18.6°C | 11.1°C | 38.4°C | 5.7°C | 69 mm | 63% | 3.4 m/s | 6.7 |
| 2014 | 29.9°C | 21.2°C | 12.6°C | 42.1°C | 5.9°C | 18 mm | 51% | 3.5 m/s | 7.6 |
| 2013 | 28.9°C | 20.0°C | 11.0°C | 39.4°C | 6.8°C | 11 mm | 49% | 3.3 m/s | 8.1 |
| 2012 | 27.6°C | 20.0°C | 12.3°C | 38.2°C | 6.5°C | 26 mm | 56% | 3.6 m/s | 7.4 |
| 2011 🌧️ | 24.5°C | 18.3°C | 12.0°C | 34.1°C | 7.1°C | 173 mm | 73% | 2.7 m/s | 7.1 |
| 2010 | 28.2°C | 19.4°C | 10.5°C | 40.6°C | 5.6°C | 22 mm | 55% | 3.1 m/s | 7.6 |
| 2009 | 29.5°C | 20.2°C | 10.8°C | 42.0°C | 3.7°C | 1 mm | 48% | 3 m/s | 8.4 |
| 2008 | 28.5°C | 20.2°C | 11.9°C | 38.7°C | 6.5°C | 33 mm | 58% | 3.1 m/s | 7.7 |
| 2007 | 27.4°C | 20.0°C | 12.6°C | 38.8°C | 7.9°C | 60 mm | 61% | 3.2 m/s | 7 |
| 2006 | 29.2°C | 20.9°C | 12.6°C | 39.6°C | 7.7°C | 47 mm | 58% | 3.3 m/s | 7.5 |
| 2005 | 26.5°C | 18.9°C | 11.3°C | 36.8°C | 6.2°C | 38 mm | 61% | 2.9 m/s | 7.2 |
| 2004 | 25.2°C | 17.4°C | 9.6°C | 35.4°C | 4.5°C | 31 mm | 59% | 3.1 m/s | 7.1 |
| 2003 | 28.3°C | 19.7°C | 11.2°C | 41.8°C | 6.1°C | 15 mm | 52% | 3.5 m/s | 7.4 |
| 2002 | 25.6°C | 18.0°C | 10.5°C | 36.2°C | 6.5°C | 24 mm | 60% | 3.4 m/s | 6.7 |
| 2001 | 30.4°C | 22.1°C | 13.8°C | 41.1°C | 7.5°C | 27 mm | 53% | 3.3 m/s | 6.9 |
| 2000 | 25.0°C | 18.1°C | 11.2°C | 35.9°C | 5.6°C | 31 mm | 61% | 3.2 m/s | 7 |
| 1999 | 29.4°C | 21.1°C | 12.8°C | 39.6°C | 8.9°C | 33 mm | 60% | 3.2 m/s | 7.6 |
| 1998 | 27.6°C | 19.7°C | 11.8°C | 38.3°C | 7.9°C | 42 mm | 59% | 3.2 m/s | 7.2 |
| 1997 | 28.3°C | 19.9°C | 11.6°C | 39.4°C | 5.2°C | 43 mm | 54% | 3.6 m/s | 7.5 |
| 1996 | 25.9°C | 18.1°C | 10.4°C | 36.8°C | 6.6°C | 41 mm | 62% | 3.4 m/s | 7.2 |
| 1995 | 28.3°C | 20.5°C | 12.8°C | 36.8°C | 5.7°C | 61 mm | 59% | 3.1 m/s | 7.1 |
| 1994 | 24.4°C | 16.6°C | 8.7°C | 37.4°C | 4.3°C | 36 mm | 62% | 3.5 m/s | 7.2 |
| 1993 | 25.3°C | 18.2°C | 11.1°C | 36.2°C | 5.7°C | 97 mm | 70% | 2.8 m/s | 7 |
| 1992 ❄️ | 22.9°C | 16.0°C | 9.1°C | 34.9°C | 5.2°C | 20 mm | 66% | 3.3 m/s | 7.2 |
| 1991 | 27.0°C | 19.3°C | 11.6°C | 38.9°C | 6.9°C | 86 mm | 61% | 3.2 m/s | 7.2 |
| 1990 | 27.6°C | 19.3°C | 10.9°C | 39.1°C | 5.2°C | 12 mm | 53% | 3.6 m/s | 7.7 |
| 1989 | 25.8°C | 18.3°C | 10.7°C | 35.4°C | 5.0°C | 41 mm | 60% | 3.2 m/s | 7.4 |
| 1988 | 28.6°C | 20.3°C | 12.0°C | 36.4°C | 6.3°C | 61 mm | 55% | 2.9 m/s | 7.4 |
| 1987 | 23.9°C | 16.2°C | 8.4°C | 34.2°C | 2.7°C | 65 mm | 62% | 3.1 m/s | 7.3 |
| 1986 | 23.5°C | 16.2°C | 9.0°C | 34.7°C | 5.1°C | 18 mm | 63% | 3.4 m/s | 7.6 |
| 1985 | 26.7°C | 18.5°C | 10.3°C | 39.7°C | 5.9°C | 17 mm | 53% | 3.4 m/s | 7.2 |
| 1984 | 24.7°C | 17.3°C | 9.9°C | 31.2°C | 5.8°C | 61 mm | 62% | 3.3 m/s | 6.9 |
| 1983 | 26.7°C | 17.9°C | 9.1°C | 39.2°C | 5.0°C | 16 mm | 49% | 3.3 m/s | — |
| 1982 | 29.7°C | 21.1°C | 12.4°C | 43.5°C | 6.9°C | 41 mm | 50% | 3.3 m/s | — |
| 1981 | 31.1°C | 22.2°C | 13.3°C | 39.9°C | 7.6°C | 48 mm | 52% | 3.5 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 27.4°C with lows near 11.5°C (mean 19.5°C), based on 45 years of NASA POWER data.
January averages 45 mm of rainfall in Ballarat, about average for rainfall. The wettest on record was 173 mm in 2011.
The hottest January reached 43.5°C in 1982. The coldest dipped to 2.7°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.6°C — but days and nights have moved in opposite directions. Overnight lows rose from 11°C to 12.5°C while daytime highs eased from 27.8°C to 27.5°C, narrowing the gap between day and night.
January is one of the warmer months of the year in Ballarat and about average for rainfall, so plan for around 27.4°C daytime highs and 11.5°C at night.
Not quite — January is the 12th coolest month in Ballarat, averaging 19.5°C.
For January in Ballarat, pack light layers you can adjust through the day, with typical highs of 27.4°C and lows of 11.5°C.
Relative humidity in January averages 58% — moderately humid.
Average wind speed in January is 3.2 m/s. The windiest January on record averaged 3.6 m/s (1990).
The wettest January on record was 2011 with 173 mm. On average, January sees 45 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 Ballarat 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.
