January is one of the warmer months of the year in Mount Gambier, with average highs near 22°C and lows around 14°C (mean 18°C). It is one of the drier months, averaging 32 mm of rainfall and 69% relative humidity across the period.
January is one of the warmer months of the year in Mount Gambier. Across 45 years of records, the warmest January in Mount Gambier was 2022 — when the month averaged 20.1°C — while the coldest was 1987 at 15.7°C. Typical January days reach 22°C with nights near 14°C. The long-term trend is warming, about 0.3°C per decade.
January is one of the drier months in Mount Gambier, averaging 32 mm of rainfall. The wettest January on record was 2011 with 122 mm, while the driest was 2019 at 2 mm.
Relative humidity in Mount Gambier during January averages 69%. The most humid January was 2024 at 76%, and the least humid were 1983 and 2013 at 65%.
January receives about 7.3 kWh/m²/day of solar energy in Mount Gambier. The sunniest January was 2009 at 8.2 kWh/m²/day, and the cloudiest was 2002 at 6.5.
Average wind speed in Mount Gambier during January is 3.9 m/s. The windiest Januarys were 1994 and 1996 at 4.6 m/s, while the calmest was 1993 at 3.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.7°C | 17.6°C | 17.8°C | 18.5°C | 18.5°C | +0.8°C |
| Avg High | 21.8°C | 21.5°C | 21.7°C | 22.5°C | 22.4°C | +0.6°C |
| Avg Low | 13.7°C | 13.7°C | 13.9°C | 14.5°C | 14.6°C | +0.9°C |
| Avg Rain | 26 mm | 37 mm | 24 mm | 34 mm | 40 mm | +14 mm |
January temperatures in Mount Gambier have risen by about 0.6°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 9.5°C (1987) to a record high of 38°C (2019).
Rainfall in January is one of the drier months, averaging 32 mm, with a wettest year of 122 mm.
One of the best times to visit Mount Gambier
January is one of the best times to visit Mount Gambier. Expect days averaging 22°C and nights around 14°C (mean 18°C) — warmer than Mount Gambier's yearly average — with moderate rainfall (32 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 | 23.6°C | 19.5°C | 15.4°C | 29.9°C | 11.4°C | 11 mm | 67% | 3.6 m/s | 7.6 |
| 2024 | 21.5°C | 18.1°C | 14.6°C | 29.9°C | 12.4°C | 25 mm | 76% | 3.9 m/s | 7 |
| 2023 | 21.8°C | 17.9°C | 14.0°C | 31.1°C | 10.9°C | 29 mm | 71% | 3.7 m/s | 7.8 |
| 2022 🔥 | 24.4°C | 20.1°C | 15.9°C | 32.5°C | 12.3°C | 37 mm | 71% | 3.6 m/s | 6.8 |
| 2021 | 21.0°C | 17.3°C | 13.6°C | 32.7°C | 10.8°C | 56 mm | 75% | 3.9 m/s | 7.3 |
| 2020 | 22.3°C | 18.2°C | 14.2°C | 33.6°C | 12.2°C | 81 mm | 69% | 4 m/s | 6.9 |
| 2019 | 24.2°C | 19.7°C | 15.2°C | 38.0°C | 12.3°C | 2 mm | 67% | 3.3 m/s | 7.7 |
| 2018 | 23.7°C | 19.4°C | 15.0°C | 34.5°C | 12.4°C | 16 mm | 66% | 3.7 m/s | 7.5 |
| 2017 | 22.1°C | 18.2°C | 14.4°C | 33.7°C | 12.1°C | 30 mm | 69% | 3.4 m/s | 7.5 |
| 2016 | 22.5°C | 18.6°C | 14.7°C | 30.3°C | 12.5°C | 29 mm | 70% | 3.9 m/s | 7.2 |
| 2015 | 21.4°C | 17.7°C | 14.0°C | 33.2°C | 11.6°C | 60 mm | 71% | 4.3 m/s | 6.7 |
| 2014 | 23.1°C | 18.8°C | 14.4°C | 34.7°C | 11.4°C | 25 mm | 67% | 4.1 m/s | 7.7 |
| 2013 | 22.2°C | 18.3°C | 14.3°C | 34.3°C | 12.4°C | 20 mm | 65% | 3.7 m/s | 7.7 |
| 2012 | 23.3°C | 19.2°C | 15.2°C | 33.8°C | 12.4°C | 17 mm | 66% | 4.4 m/s | 7.6 |
| 2011 🌧️ | 21.0°C | 17.5°C | 13.9°C | 29.2°C | 10.6°C | 122 mm | 76% | 3.3 m/s | 7.2 |
| 2010 | 22.0°C | 17.9°C | 13.7°C | 33.3°C | 11.5°C | 16 mm | 66% | 3.6 m/s | 7.6 |
| 2009 | 22.2°C | 17.9°C | 13.7°C | 35.8°C | 10.5°C | 6 mm | 67% | 3.7 m/s | 8.2 |
| 2008 | 21.8°C | 18.0°C | 14.1°C | 31.5°C | 11.4°C | 11 mm | 71% | 4 m/s | 8 |
| 2007 | 22.9°C | 18.9°C | 14.8°C | 32.5°C | 12.3°C | 69 mm | 69% | 3.7 m/s | 7.2 |
| 2006 | 22.2°C | 18.0°C | 13.9°C | 33.7°C | 11.8°C | 38 mm | 72% | 3.7 m/s | 7.5 |
| 2005 | 21.7°C | 17.8°C | 13.9°C | 34.5°C | 10.4°C | 15 mm | 70% | 4 m/s | 7.3 |
| 2004 | 18.7°C | 15.8°C | 13.0°C | 27.7°C | 10.3°C | 34 mm | 72% | 4 m/s | 6.8 |
| 2003 | 22.6°C | 18.1°C | 13.7°C | 34.1°C | 11.6°C | 25 mm | 66% | 3.9 m/s | 7.2 |
| 2002 | 19.9°C | 16.3°C | 12.7°C | 30.3°C | 11.1°C | 23 mm | 73% | 3.9 m/s | 6.5 |
| 2001 | 23.5°C | 19.2°C | 14.9°C | 31.0°C | 12.7°C | 7 mm | 70% | 3.9 m/s | 7.1 |
| 2000 | 21.9°C | 18.1°C | 14.3°C | 33.5°C | 11.6°C | 16 mm | 67% | 4.2 m/s | 7 |
| 1999 | 22.7°C | 18.5°C | 14.3°C | 32.5°C | 11.6°C | 9 mm | 72% | 4.2 m/s | 7.6 |
| 1998 | 22.0°C | 18.1°C | 14.2°C | 32.5°C | 11.3°C | 40 mm | 71% | 3.8 m/s | 7.2 |
| 1997 | 23.2°C | 18.6°C | 14.1°C | 33.3°C | 11.6°C | 33 mm | 66% | 3.9 m/s | 7.5 |
| 1996 | 20.6°C | 16.8°C | 12.9°C | 33.7°C | 10.2°C | 53 mm | 73% | 4.6 m/s | 7.4 |
| 1995 | 21.6°C | 17.5°C | 13.5°C | 28.5°C | 10.2°C | 62 mm | 72% | 3.8 m/s | 7.2 |
| 1994 | 20.0°C | 16.4°C | 12.8°C | 34.8°C | 10.1°C | 38 mm | 68% | 4.6 m/s | 7.4 |
| 1993 | 22.0°C | 18.1°C | 14.2°C | 32.1°C | 11.0°C | 38 mm | 72% | 3.2 m/s | 6.9 |
| 1992 | 18.9°C | 15.8°C | 12.7°C | 27.8°C | 10.8°C | 9 mm | 71% | 4.2 m/s | 7 |
| 1991 | 22.2°C | 18.4°C | 14.5°C | 35.3°C | 12.0°C | 76 mm | 70% | 4 m/s | 7.3 |
| 1990 | 21.8°C | 17.8°C | 13.8°C | 32.5°C | 10.8°C | 17 mm | 67% | 3.9 m/s | 7.4 |
| 1989 | 22.5°C | 18.3°C | 14.1°C | 32.9°C | 10.3°C | 28 mm | 66% | 4.1 m/s | 7.2 |
| 1988 | 23.0°C | 18.9°C | 14.7°C | 32.8°C | 12.3°C | 32 mm | 67% | 3.8 m/s | 7.3 |
| 1987 ❄️ | 19.1°C | 15.7°C | 12.4°C | 28.1°C | 9.5°C | 16 mm | 69% | 4.3 m/s | 6.9 |
| 1986 | 20.7°C | 17.0°C | 13.3°C | 29.4°C | 10.9°C | 11 mm | 68% | 4.1 m/s | 7.7 |
| 1985 | 21.5°C | 17.4°C | 13.2°C | 31.5°C | 10.5°C | 17 mm | 69% | 3.8 m/s | 7.2 |
| 1984 | 20.7°C | 17.1°C | 13.5°C | 28.5°C | 10.9°C | 19 mm | 69% | 3.9 m/s | 6.9 |
| 1983 | 21.2°C | 16.8°C | 12.4°C | 36.0°C | 10.5°C | 32 mm | 65% | 4.1 m/s | — |
| 1982 | 23.0°C | 18.7°C | 14.5°C | 34.3°C | 11.1°C | 39 mm | 67% | 3.8 m/s | — |
| 1981 | 24.5°C | 19.8°C | 15.1°C | 35.4°C | 13.0°C | 37 mm | 65% | 3.9 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 22°C with lows near 14°C (mean 18°C), based on 45 years of NASA POWER data.
January averages 32 mm of rainfall in Mount Gambier, one of the drier months. The wettest on record was 122 mm in 2011.
The hottest January reached 38°C in 2019. The coldest dipped to 9.5°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. Daytime highs moved from 22.2°C to 22.5°C and overnight lows from 13.7°C to 14.7°C over the same span.
January is one of the warmer months of the year in Mount Gambier and one of the drier months, so plan for around 22°C daytime highs and 14°C at night.
Not quite — January is the 11th coolest month in Mount Gambier, averaging 18°C.
For January in Mount Gambier, pack light layers you can adjust through the day, with typical highs of 22°C and lows of 14°C.
Relative humidity in January averages 69% — moderately humid.
Average wind speed in January is 3.9 m/s. The windiest January on record averaged 4.6 m/s (1994).
The wettest January on record was 2011 with 122 mm. On average, January sees 32 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 Mount Gambier 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.
