January is one of the warmer months of the year in Gawler, with average highs near 32.3°C and lows around 15.6°C (mean 24°C). It is one of the drier months, averaging 17 mm of rainfall and 45% relative humidity across the period.
January is one of the warmer months of the year in Gawler. Across 45 years of records, the warmest January in Gawler was 2001 — when the month averaged 28.3°C — while the coldest was 1992 at 20.2°C. Typical January days reach 32.3°C with nights near 15.6°C. The long-term trend is warming, about 0.6°C per decade.
January is one of the drier months in Gawler, averaging 17 mm of rainfall. The wettest January on record was 1993 with 62 mm, while the driest were 2017, 2018 and 2019 at 0 mm.
Relative humidity in Gawler during January averages 45%. The most humid January was 1993 at 60%, and the least humid was 2001 at 35%.
January receives about 7.8 kWh/m²/day of solar energy in Gawler. The sunniest January was 2009 at 8.8 kWh/m²/day, and the cloudiest was 1993 at 7.2.
Average wind speed in Gawler during January is 3.5 m/s. The windiest January was 1994 at 4 m/s, while the calmest was 1993 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.1°C | 23.1°C | 24.0°C | 25.0°C | 24.5°C | +1.4°C |
| Avg High | 31.6°C | 31.3°C | 32.4°C | 33.4°C | 32.7°C | +1.1°C |
| Avg Low | 14.6°C | 14.9°C | 15.7°C | 16.6°C | 16.4°C | +1.8°C |
| Avg Rain | 14 mm | 21 mm | 17 mm | 14 mm | 17 mm | +3 mm |
January temperatures in Gawler have risen by about 1°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 7.7°C (1983) to a record high of 47.5°C (2019).
Rainfall in January is one of the drier months, averaging 17 mm, with a wettest year of 62 mm.
One of the best times to visit Gawler
January is one of the best times to visit Gawler. Expect days averaging 32.3°C and nights around 15.6°C (mean 24°C) — warmer than Gawler's yearly average — with low rainfall (17 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 | 34.2°C | 25.4°C | 16.6°C | 40.9°C | 11.8°C | 1 mm | 40% | 3.4 m/s | 8.2 |
| 2024 | 32.8°C | 24.8°C | 16.8°C | 42.7°C | 11.1°C | 34 mm | 48% | 3.1 m/s | 7.7 |
| 2023 | 33.0°C | 24.4°C | 15.8°C | 41.3°C | 10.6°C | 18 mm | 45% | 3.3 m/s | 7.8 |
| 2022 | 32.8°C | 25.4°C | 18.1°C | 42.6°C | 12.1°C | 28 mm | 50% | 3.5 m/s | 7.3 |
| 2021 | 31.8°C | 23.6°C | 15.3°C | 43.6°C | 10.9°C | 22 mm | 44% | 3.4 m/s | 7.9 |
| 2020 | 31.8°C | 23.7°C | 15.6°C | 44.8°C | 11.4°C | 1 mm | 43% | 3.4 m/s | 7.7 |
| 2019 | 35.9°C | 26.8°C | 17.8°C | 47.5°C | 12.6°C | 0 mm | 37% | 3.3 m/s | 8.1 |
| 2018 | 34.6°C | 26.1°C | 17.6°C | 44.5°C | 13.0°C | 0 mm | 39% | 3.5 m/s | 7.5 |
| 2017 | 33.9°C | 25.3°C | 16.7°C | 42.1°C | 11.9°C | 0 mm | 43% | 3.4 m/s | 7.8 |
| 2016 | 32.5°C | 24.7°C | 16.9°C | 39.6°C | 10.6°C | 18 mm | 45% | 3.4 m/s | 7.7 |
| 2015 | 30.5°C | 23.1°C | 15.8°C | 42.9°C | 10.0°C | 58 mm | 53% | 3.4 m/s | 7.3 |
| 2014 | 35.1°C | 26.2°C | 17.4°C | 44.8°C | 10.6°C | 9 mm | 39% | 3.6 m/s | 8 |
| 2013 | 32.8°C | 24.0°C | 15.1°C | 45.7°C | 9.8°C | 12 mm | 41% | 3.5 m/s | 8.2 |
| 2012 | 32.7°C | 24.9°C | 17.0°C | 42.1°C | 9.7°C | 21 mm | 44% | 3.8 m/s | 7.8 |
| 2011 | 33.1°C | 24.7°C | 16.3°C | 43.9°C | 10.9°C | 12 mm | 49% | 3 m/s | 7.9 |
| 2010 | 33.0°C | 24.4°C | 15.7°C | 42.8°C | 10.0°C | 14 mm | 40% | 3.3 m/s | 8.4 |
| 2009 | 33.8°C | 24.8°C | 15.9°C | 45.9°C | 8.3°C | 2 mm | 39% | 3.3 m/s | 8.8 |
| 2008 | 33.5°C | 24.3°C | 15.1°C | 42.7°C | 10.7°C | 4 mm | 45% | 3.6 m/s | 8.6 |
| 2007 | 31.4°C | 23.9°C | 16.4°C | 41.2°C | 11.4°C | 56 mm | 52% | 3.6 m/s | 7.5 |
| 2006 | 34.5°C | 26.1°C | 17.7°C | 45.2°C | 11.3°C | 23 mm | 45% | 3.5 m/s | 7.5 |
| 2005 | 31.3°C | 23.2°C | 15.0°C | 42.6°C | 9.5°C | 27 mm | 48% | 3.4 m/s | 7.6 |
| 2004 | 27.7°C | 20.4°C | 13.1°C | 40.4°C | 10.2°C | 9 mm | 53% | 3.4 m/s | 8 |
| 2003 | 33.6°C | 24.7°C | 15.8°C | 46.0°C | 10.4°C | 8 mm | 38% | 3.9 m/s | 8 |
| 2002 | 29.5°C | 21.5°C | 13.4°C | 41.2°C | 9.0°C | 29 mm | 50% | 3.4 m/s | 7.6 |
| 2001 🔥 | 37.3°C | 28.3°C | 19.3°C | 45.7°C | 12.6°C | 14 mm | 35% | 3.6 m/s | 8 |
| 2000 | 30.9°C | 23.2°C | 15.4°C | 41.1°C | 8.1°C | 3 mm | 43% | 3.9 m/s | 7.7 |
| 1999 | 35.5°C | 26.5°C | 17.4°C | 45.0°C | 11.7°C | 12 mm | 41% | 3.4 m/s | 8 |
| 1998 | 31.8°C | 23.3°C | 14.9°C | 41.4°C | 10.5°C | 19 mm | 49% | 3.5 m/s | 7.8 |
| 1997 | 32.4°C | 23.9°C | 15.5°C | 40.5°C | 9.4°C | 29 mm | 43% | 3.4 m/s | 7.4 |
| 1996 | 30.2°C | 21.7°C | 13.2°C | 44.6°C | 9.9°C | 10 mm | 50% | 3.8 m/s | 8.2 |
| 1995 | 32.4°C | 24.3°C | 16.2°C | 40.4°C | 10.2°C | 33 mm | 44% | 3.4 m/s | 7.7 |
| 1994 | 28.6°C | 21.0°C | 13.4°C | 43.5°C | 8.8°C | 16 mm | 50% | 4 m/s | 7.7 |
| 1993 🌧️ | 30.0°C | 22.3°C | 14.6°C | 38.6°C | 8.5°C | 62 mm | 60% | 2.9 m/s | 7.2 |
| 1992 ❄️ | 27.9°C | 20.2°C | 12.4°C | 41.0°C | 8.1°C | 2 mm | 51% | 3.5 m/s | 7.8 |
| 1991 | 32.5°C | 24.4°C | 16.2°C | 43.0°C | 11.6°C | 14 mm | 46% | 3.6 m/s | 7.7 |
| 1990 | 31.9°C | 23.6°C | 15.2°C | 42.7°C | 9.2°C | 12 mm | 43% | 3.7 m/s | 7.7 |
| 1989 | 31.0°C | 23.0°C | 14.9°C | 40.3°C | 8.4°C | 2 mm | 43% | 3.8 m/s | 8.2 |
| 1988 | 33.1°C | 24.4°C | 15.8°C | 44.4°C | 10.2°C | 12 mm | 41% | 3.5 m/s | 7.8 |
| 1987 | 28.8°C | 20.6°C | 12.4°C | 38.6°C | 8.7°C | 32 mm | 49% | 3.4 m/s | 7.9 |
| 1986 | 30.4°C | 21.5°C | 12.6°C | 42.2°C | 9.4°C | 4 mm | 44% | 3.5 m/s | 8.5 |
| 1985 | 31.7°C | 22.9°C | 14.1°C | 43.3°C | 9.1°C | 6 mm | 43% | 3.5 m/s | 7.7 |
| 1984 | 29.5°C | 21.6°C | 13.8°C | 38.9°C | 9.5°C | 17 mm | 49% | 3.7 m/s | 7.7 |
| 1983 | 30.7°C | 22.2°C | 13.6°C | 44.0°C | 7.7°C | 9 mm | 42% | 3.5 m/s | — |
| 1982 | 33.3°C | 24.9°C | 16.6°C | 46.3°C | 10.8°C | 18 mm | 41% | 3.6 m/s | — |
| 1981 | 36.0°C | 26.9°C | 17.7°C | 43.8°C | 12.1°C | 29 mm | 39% | 3.5 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 32.3°C with lows near 15.6°C (mean 24°C), based on 45 years of NASA POWER data.
January averages 17 mm of rainfall in Gawler, one of the drier months. The wettest on record was 62 mm in 1993.
The hottest January reached 47.5°C in 2019. The coldest dipped to 7.7°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 1°C. Daytime highs moved from 32.2°C to 32.9°C and overnight lows from 15.2°C to 16.5°C over the same span.
January is one of the warmer months of the year in Gawler and one of the drier months, so plan for around 32.3°C daytime highs and 15.6°C at night.
Not quite — January is the 12th coolest month in Gawler, averaging 24°C.
For January in Gawler, pack light, breathable clothing and sun protection, with typical highs of 32.3°C and lows of 15.6°C.
Relative humidity in January averages 45% — relatively dry.
Average wind speed in January is 3.5 m/s. The windiest January on record averaged 4 m/s (1994).
The wettest January on record was 1993 with 62 mm. On average, January sees 17 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 Gawler 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.
