January is one of the warmer months of the year in Coolum Beach, with average highs near 27.3°C and lows around 23°C (mean 25.2°C). It is a relatively wet time of year, averaging 146 mm of rainfall and 76% relative humidity across the period.
January is one of the warmer months of the year in Coolum Beach. Across 45 years of records, the warmest January in Coolum Beach was 2024 — when the month averaged 26.3°C — while the coldest was 1997 at 23.9°C. Typical January days reach 27.3°C with nights near 23°C. The long-term trend is warming, about 0.2°C per decade.
January is a relatively wet time of year in Coolum Beach, averaging 146 mm of rainfall. The wettest January on record was 2011 with 529 mm, while the driest was 2003 at 14 mm.
Relative humidity in Coolum Beach during January averages 76%. The most humid January was 2024 at 84%, and the least humid was 2003 at 68%.
January receives about 6.8 kWh/m²/day of solar energy in Coolum Beach. The sunniest January was 2018 at 7.7 kWh/m²/day, and the cloudiest was 2012 at 5.7.
Average wind speed in Coolum Beach during January is 3.3 m/s. The windiest January was 1997 at 3.9 m/s, while the calmest were 1993 and 2025 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.8°C | 25.1°C | 25.2°C | 25.4°C | 25.4°C | +0.6°C |
| Avg High | 27.0°C | 27.2°C | 27.3°C | 27.6°C | 27.4°C | +0.4°C |
| Avg Low | 22.6°C | 22.9°C | 23.0°C | 23.3°C | 23.5°C | +0.9°C |
| Avg Rain | 133 mm | 140 mm | 125 mm | 194 mm | 133 mm | -1 mm |
January temperatures in Coolum Beach have risen by about 0.6°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 19.6°C (1983) to a record high of 34.6°C (2002).
Rainfall in January is a relatively wet time of year, averaging 146 mm, with a wettest year of 529 mm.
A quieter season to visit Coolum Beach
If your dates are flexible, the more temperate months of October and September tend to be the most comfortable for visiting Coolum Beach. That said, January — with days averaging 27.3°C and nights around 23°C (mean 25.2°C) and higher rainfall (146 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 27.5°C | 25.4°C | 23.4°C | 31.0°C | 22.0°C | 143 mm | 76% | 2.7 m/s | 7 |
| 2024 🔥 | 27.8°C | 26.3°C | 24.7°C | 32.3°C | 22.1°C | 252 mm | 84% | 3.2 m/s | 5.8 |
| 2023 | 27.4°C | 25.1°C | 22.8°C | 30.6°C | 20.9°C | 60 mm | 74% | 3 m/s | 6.6 |
| 2022 | 26.9°C | 25.0°C | 23.2°C | 28.8°C | 20.4°C | 123 mm | 78% | 3.7 m/s | 6.5 |
| 2021 | 27.0°C | 24.9°C | 22.9°C | 30.7°C | 21.3°C | 79 mm | 75% | 3.3 m/s | 6.8 |
| 2020 | 28.0°C | 25.9°C | 23.7°C | 30.0°C | 22.1°C | 139 mm | 77% | 2.9 m/s | 6.9 |
| 2019 | 28.0°C | 25.8°C | 23.5°C | 29.3°C | 22.6°C | 14 mm | 71% | 2.9 m/s | 7.6 |
| 2018 | 28.2°C | 25.7°C | 23.1°C | 32.4°C | 20.3°C | 41 mm | 73% | 3.1 m/s | 7.7 |
| 2017 | 28.7°C | 26.2°C | 23.8°C | 31.8°C | 21.9°C | 40 mm | 74% | 3.2 m/s | 7.1 |
| 2016 | 27.2°C | 24.9°C | 22.6°C | 29.8°C | 20.9°C | 170 mm | 75% | 3 m/s | 6.7 |
| 2015 | 27.8°C | 25.8°C | 23.7°C | 32.3°C | 22.3°C | 181 mm | 78% | 3 m/s | 6.3 |
| 2014 | 27.7°C | 25.5°C | 23.2°C | 34.4°C | 21.8°C | 91 mm | 71% | 3.7 m/s | 6.8 |
| 2013 | 27.9°C | 25.8°C | 23.7°C | 31.2°C | 21.7°C | 384 mm | 75% | 3.7 m/s | 6.8 |
| 2012 | 26.1°C | 24.3°C | 22.6°C | 31.9°C | 20.2°C | 367 mm | 78% | 3.4 m/s | 5.7 |
| 2011 🌧️ | 25.9°C | 24.5°C | 23.0°C | 28.8°C | 21.2°C | 529 mm | 83% | 3.5 m/s | 6.1 |
| 2010 | 28.0°C | 25.7°C | 23.4°C | 31.3°C | 22.3°C | 124 mm | 74% | 2.9 m/s | 7.1 |
| 2009 | 27.4°C | 25.4°C | 23.5°C | 32.5°C | 22.1°C | 132 mm | 75% | 3.8 m/s | 6.5 |
| 2008 | 25.8°C | 24.4°C | 23.0°C | 27.1°C | 21.7°C | 238 mm | 84% | 3.8 m/s | 6 |
| 2007 | 27.3°C | 25.0°C | 22.7°C | 30.7°C | 20.9°C | 55 mm | 75% | 3 m/s | 7.2 |
| 2006 | 28.1°C | 26.1°C | 24.0°C | 30.9°C | 22.8°C | 217 mm | 77% | 3.1 m/s | 6.9 |
| 2005 | 27.5°C | 25.3°C | 23.2°C | 30.4°C | 20.7°C | 144 mm | 76% | 3.8 m/s | 6.6 |
| 2004 | 28.0°C | 25.9°C | 23.9°C | 31.3°C | 21.6°C | 231 mm | 81% | 3.4 m/s | 6.8 |
| 2003 | 27.1°C | 24.6°C | 22.0°C | 29.6°C | 20.2°C | 14 mm | 68% | 3.5 m/s | 7.5 |
| 2002 | 28.4°C | 25.9°C | 23.4°C | 34.6°C | 21.2°C | 50 mm | 73% | 3.6 m/s | 7 |
| 2001 | 27.2°C | 24.9°C | 22.7°C | 31.4°C | 20.7°C | 73 mm | 74% | 3.3 m/s | 7.4 |
| 2000 | 26.2°C | 24.0°C | 21.8°C | 33.6°C | 20.6°C | 93 mm | 77% | 3.5 m/s | 6.7 |
| 1999 | 27.3°C | 25.3°C | 23.4°C | 31.9°C | 22.2°C | 168 mm | 78% | 3.3 m/s | 6.7 |
| 1998 | 28.1°C | 26.0°C | 24.0°C | 32.0°C | 22.5°C | 158 mm | 76% | 3.4 m/s | 6.7 |
| 1997 ❄️ | 25.9°C | 23.9°C | 21.9°C | 28.9°C | 20.5°C | 131 mm | 74% | 3.9 m/s | 6.8 |
| 1996 | 26.9°C | 25.1°C | 23.3°C | 30.8°C | 20.4°C | 269 mm | 80% | 3.1 m/s | 6.7 |
| 1995 | 27.2°C | 24.8°C | 22.5°C | 31.2°C | 21.1°C | 103 mm | 74% | 3.7 m/s | 6.8 |
| 1994 | 27.8°C | 25.6°C | 23.4°C | 33.3°C | 21.8°C | 196 mm | 77% | 3.5 m/s | 6.9 |
| 1993 | 26.9°C | 24.7°C | 22.5°C | 28.9°C | 20.4°C | 108 mm | 76% | 2.7 m/s | 7.3 |
| 1992 | 27.6°C | 25.3°C | 23.0°C | 29.9°C | 21.1°C | 78 mm | 76% | 3.2 m/s | 7.2 |
| 1991 | 27.7°C | 25.6°C | 23.4°C | 30.2°C | 21.2°C | 104 mm | 76% | 3.4 m/s | 6.5 |
| 1990 | 26.9°C | 24.4°C | 22.0°C | 30.0°C | 19.7°C | 86 mm | 75% | 3.2 m/s | 6.9 |
| 1989 | 26.4°C | 24.3°C | 22.3°C | 30.3°C | 21.1°C | 155 mm | 76% | 3.4 m/s | 7 |
| 1988 | 27.1°C | 24.9°C | 22.6°C | 30.6°C | 20.1°C | 117 mm | 74% | 3.6 m/s | 6.9 |
| 1987 | 28.6°C | 26.1°C | 23.7°C | 32.6°C | 21.1°C | 124 mm | 76% | 2.9 m/s | 7 |
| 1986 | 27.2°C | 24.9°C | 22.5°C | 29.8°C | 20.6°C | 69 mm | 72% | 3.4 m/s | 6.9 |
| 1985 | 28.0°C | 25.4°C | 22.9°C | 32.7°C | 21.1°C | 112 mm | 72% | 3.2 m/s | 7.6 |
| 1984 | 25.9°C | 24.0°C | 22.1°C | 28.3°C | 19.7°C | 143 mm | 78% | 3 m/s | 6.4 |
| 1983 | 26.7°C | 24.4°C | 22.1°C | 32.9°C | 19.6°C | 96 mm | 74% | 3.3 m/s | — |
| 1982 | 27.2°C | 25.3°C | 23.3°C | 32.4°C | 21.5°C | 314 mm | 80% | 3.4 m/s | — |
| 1981 | 26.3°C | 24.3°C | 22.3°C | 28.8°C | 21.0°C | 71 mm | 75% | 3.2 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 27.3°C with lows near 23°C (mean 25.2°C), based on 45 years of NASA POWER data.
January averages 146 mm of rainfall in Coolum Beach, a relatively wet time of year. The wettest on record was 529 mm in 2011.
The hottest January reached 34.6°C in 2002. The coldest dipped to 19.6°C in 1983.
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 26.8°C to 27.3°C and overnight lows from 22.5°C to 23.4°C over the same span.
January is one of the warmer months of the year in Coolum Beach and a relatively wet time of year, so plan for around 27.3°C daytime highs and 23°C at night.
Not quite — January is the 12th coolest month in Coolum Beach, averaging 25.2°C.
For January in Coolum Beach, pack light layers you can adjust through the day, with typical highs of 27.3°C and lows of 23°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 76% — quite humid.
Average wind speed in January is 3.3 m/s. The windiest January on record averaged 3.9 m/s (1997).
The wettest January on record was 2011 with 529 mm. On average, January sees 146 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 Coolum Beach 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.
