January is one of the warmer months of the year in Geraldton, with average highs near 24.9°C and lows around 21.4°C (mean 23.2°C). It is one of the drier months, averaging 7 mm of rainfall and 74% relative humidity across the period.
January is one of the warmer months of the year in Geraldton. Across 45 years of records, the warmest January in Geraldton was 2012 — when the month averaged 25.3°C — while the coldest was 1987 at 21.5°C. Typical January days reach 24.9°C with nights near 21.4°C. The long-term trend is warming, about 0.2°C per decade.
January is one of the drier months in Geraldton, averaging 7 mm of rainfall. The wettest January on record was 1990 with 75 mm, while the driest were 2010, 2019 and 2021, among others at 0 mm.
Relative humidity in Geraldton during January averages 74%. The most humid January was 2001 at 80%, and the least humid was 1981 at 67%.
January receives about 8.2 kWh/m²/day of solar energy in Geraldton. The sunniest Januarys were 1994 and 2022 at 8.8 kWh/m²/day, and the cloudiest was 2016 at 7.
Average wind speed in Geraldton during January is 6.8 m/s. The windiest January was 2005 at 7.9 m/s, while the calmest was 2016 at 4.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.0°C | 22.9°C | 22.6°C | 23.6°C | 23.9°C | +0.9°C |
| Avg High | 24.9°C | 24.7°C | 24.3°C | 25.4°C | 25.7°C | +0.8°C |
| Avg Low | 21.2°C | 21.2°C | 21.0°C | 21.8°C | 22.2°C | +1°C |
| Avg Rain | 6 mm | 8 mm | 4 mm | 14 mm | 1 mm | -5 mm |
January temperatures in Geraldton have risen by about 1°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 17.4°C (2006) to a record high of 36.1°C (2012).
Rainfall in January is one of the drier months, averaging 7 mm, with a wettest year of 75 mm.
One of the best times to visit Geraldton
January is one of the best times to visit Geraldton. Expect days averaging 24.9°C and nights around 21.4°C (mean 23.2°C) — warmer than Geraldton's yearly average — with low rainfall (7 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 | 26.5°C | 24.7°C | 23.0°C | 33.3°C | 20.6°C | 1 mm | 76% | 6.1 m/s | 8 |
| 2024 | 24.6°C | 23.2°C | 21.8°C | 31.4°C | 20.6°C | 1 mm | 77% | 7 m/s | 8.6 |
| 2023 | 25.4°C | 23.4°C | 21.4°C | 34.0°C | 18.9°C | 2 mm | 74% | 7 m/s | 8.5 |
| 2022 | 26.4°C | 24.4°C | 22.4°C | 34.6°C | 20.1°C | 1 mm | 73% | 7.4 m/s | 8.8 |
| 2021 | 27.0°C | 25.2°C | 23.3°C | 31.5°C | 21.1°C | 0 mm | 69% | 6.4 m/s | 8.2 |
| 2020 | 24.1°C | 22.7°C | 21.2°C | 28.0°C | 18.8°C | 2 mm | 76% | 7.4 m/s | 8.7 |
| 2019 | 23.7°C | 21.9°C | 20.1°C | 33.3°C | 18.1°C | 0 mm | 76% | 7.2 m/s | 8.5 |
| 2018 | 24.4°C | 22.9°C | 21.5°C | 29.6°C | 19.1°C | 27 mm | 76% | 7.8 m/s | 8.2 |
| 2017 | 24.9°C | 22.7°C | 20.6°C | 34.1°C | 18.5°C | 34 mm | 75% | 6.9 m/s | 8.2 |
| 2016 | 24.9°C | 23.3°C | 21.7°C | 31.2°C | 19.6°C | 37 mm | 77% | 4.9 m/s | 7 |
| 2015 | 25.6°C | 23.6°C | 21.6°C | 30.6°C | 19.4°C | 5 mm | 74% | 6.9 m/s | 8.4 |
| 2014 | 25.7°C | 23.8°C | 22.0°C | 32.6°C | 19.4°C | 3 mm | 74% | 7.1 m/s | 8.3 |
| 2013 | 25.8°C | 24.0°C | 22.2°C | 31.7°C | 20.3°C | 12 mm | 74% | 7 m/s | 8 |
| 2012 🔥 | 27.2°C | 25.3°C | 23.3°C | 36.1°C | 19.7°C | 7 mm | 72% | 5.8 m/s | 7.9 |
| 2011 | 26.6°C | 24.9°C | 23.2°C | 30.8°C | 21.3°C | 19 mm | 74% | 6.2 m/s | 7.4 |
| 2010 | 25.3°C | 23.3°C | 21.4°C | 33.0°C | 19.6°C | 0 mm | 74% | 6.8 m/s | 8.5 |
| 2009 | 24.7°C | 23.0°C | 21.4°C | 32.8°C | 20.2°C | 2 mm | 80% | 7.6 m/s | 8.2 |
| 2008 | 25.1°C | 23.4°C | 21.7°C | 32.4°C | 19.5°C | 0 mm | 78% | 7 m/s | 8.1 |
| 2007 | 23.4°C | 21.8°C | 20.2°C | 28.4°C | 18.5°C | 12 mm | 76% | 6.6 m/s | 8.4 |
| 2006 | 23.6°C | 22.1°C | 20.5°C | 28.6°C | 17.4°C | 18 mm | 78% | 7.4 m/s | 7.4 |
| 2005 | 24.0°C | 22.1°C | 20.3°C | 31.8°C | 19.0°C | 0 mm | 75% | 7.9 m/s | 8.6 |
| 2004 | 24.1°C | 22.5°C | 20.8°C | 31.9°C | 19.4°C | 0 mm | 77% | 6.7 m/s | 8.2 |
| 2003 | 24.3°C | 22.6°C | 20.8°C | 30.4°C | 19.2°C | 0 mm | 74% | 6.6 m/s | 8.5 |
| 2002 | 24.2°C | 22.6°C | 21.0°C | 28.3°C | 18.0°C | 4 mm | 75% | 6.3 m/s | 8.3 |
| 2001 | 23.1°C | 21.8°C | 20.5°C | 27.3°C | 17.8°C | 1 mm | 80% | 7.1 m/s | 7.6 |
| 2000 | 26.1°C | 24.5°C | 22.9°C | 31.7°C | 20.4°C | 6 mm | 73% | 6.1 m/s | 8 |
| 1999 | 23.2°C | 22.0°C | 20.7°C | 28.4°C | 17.9°C | 0 mm | 80% | 7.1 m/s | 8.1 |
| 1998 | 24.9°C | 22.9°C | 21.0°C | 32.7°C | 18.9°C | 1 mm | 75% | 6.8 m/s | 8.3 |
| 1997 | 27.1°C | 24.8°C | 22.6°C | 34.3°C | 19.0°C | 0 mm | 70% | 6.7 m/s | 8.6 |
| 1996 | 24.9°C | 23.0°C | 21.2°C | 34.6°C | 19.4°C | 0 mm | 71% | 7.1 m/s | 8.4 |
| 1995 | 24.9°C | 23.4°C | 21.8°C | 27.8°C | 20.2°C | 2 mm | 77% | 7.5 m/s | 8.4 |
| 1994 | 23.9°C | 22.1°C | 20.3°C | 29.8°C | 18.4°C | 0 mm | 73% | 7.1 m/s | 8.8 |
| 1993 | 24.3°C | 22.6°C | 20.9°C | 29.7°C | 19.2°C | 0 mm | 76% | 6.9 m/s | 8.6 |
| 1992 | 26.0°C | 24.0°C | 22.0°C | 33.9°C | 19.3°C | 2 mm | 72% | 5.9 m/s | 7.9 |
| 1991 | 24.6°C | 22.7°C | 20.9°C | 33.8°C | 18.7°C | 1 mm | 74% | 6.8 m/s | 8.5 |
| 1990 🌧️ | 23.4°C | 21.8°C | 20.1°C | 28.7°C | 17.7°C | 75 mm | 77% | 7.2 m/s | 7.6 |
| 1989 | 26.1°C | 24.1°C | 22.1°C | 34.2°C | 18.9°C | 1 mm | 70% | 6.4 m/s | 7.9 |
| 1988 | 23.7°C | 22.0°C | 20.3°C | 31.8°C | 17.6°C | 1 mm | 74% | 6.8 m/s | 8.2 |
| 1987 ❄️ | 22.9°C | 21.5°C | 20.2°C | 28.9°C | 18.9°C | 2 mm | 76% | 7 m/s | 8.3 |
| 1986 | 25.5°C | 23.6°C | 21.8°C | 33.5°C | 19.3°C | 4 mm | 71% | 6.5 m/s | 8.6 |
| 1985 | 23.3°C | 21.8°C | 20.3°C | 28.4°C | 18.5°C | 0 mm | 76% | 7.1 m/s | 8.7 |
| 1984 | 26.0°C | 23.8°C | 21.6°C | 35.1°C | 19.5°C | 1 mm | 70% | 6.9 m/s | 8.3 |
| 1983 | 25.9°C | 23.9°C | 22.0°C | 33.1°C | 19.1°C | 4 mm | 71% | 6.6 m/s | — |
| 1982 | 24.3°C | 22.4°C | 20.5°C | 33.6°C | 18.6°C | 40 mm | 74% | 7.2 m/s | — |
| 1981 | 26.5°C | 24.2°C | 21.9°C | 32.5°C | 19.2°C | 3 mm | 67% | 7.1 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 24.9°C with lows near 21.4°C (mean 23.2°C), based on 45 years of NASA POWER data.
January averages 7 mm of rainfall in Geraldton, one of the drier months. The wettest on record was 75 mm in 1990.
The hottest January reached 36.1°C in 2012. The coldest dipped to 17.4°C in 2006.
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 25.2°C to 26°C and overnight lows from 21.3°C to 22.4°C over the same span.
January is one of the warmer months of the year in Geraldton and one of the drier months, so plan for around 24.9°C daytime highs and 21.4°C at night.
Not quite — January is the 10th coolest month in Geraldton, averaging 23.2°C.
For January in Geraldton, pack light layers you can adjust through the day, with typical highs of 24.9°C and lows of 21.4°C.
Relative humidity in January averages 74% — moderately humid.
Average wind speed in January is 6.8 m/s. The windiest January on record averaged 7.9 m/s (2005).
The wettest January on record was 1990 with 75 mm. On average, January sees 7 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 Geraldton 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.
