June is one of the cooler months of the year in Colac, with average highs near 12.7°C and lows around 8.1°C (mean 10.4°C). It is a relatively wet time of year, averaging 77 mm of rainfall and 84% relative humidity across the period.
June is one of the cooler months of the year in Colac. Across 45 years of records, the warmest June in Colac was 2008 — when the month averaged 11.8°C — while the coldest was 1985 at 9.2°C. Typical June days reach 12.7°C with nights near 8.1°C. The long-term trend is warming, about 0.2°C per decade.
June is a relatively wet time of year in Colac, averaging 77 mm of rainfall. The wettest June on record was 1991 with 173 mm, while the driest was 2024 at 14 mm.
Relative humidity in Colac during June averages 84%. The most humid June was 1987 at 89%, and the least humid was 2024 at 77%.
June receives about 1.7 kWh/m²/day of solar energy in Colac. The sunniest Junes were 2019, 2020 and 2025, among others at 1.9 kWh/m²/day, and the cloudiest was 2004 at 1.5.
Average wind speed in Colac during June is 2.5 m/s. The windiest June was 2004 at 3.2 m/s, while the calmest was 2017 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.8°C | 10.3°C | 10.8°C | 10.5°C | 10.7°C | +0.9°C |
| Avg High | 12.2°C | 12.6°C | 13.1°C | 12.9°C | 13.1°C | +0.9°C |
| Avg Low | 7.5°C | 8.1°C | 8.6°C | 8.2°C | 8.3°C | +0.8°C |
| Avg Rain | 77 mm | 91 mm | 77 mm | 78 mm | 50 mm | -27 mm |
June temperatures in Colac have risen by about 1.2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 2.5°C (1982) to a record high of 21.3°C (2005).
Rainfall in June is a relatively wet time of year, averaging 77 mm, with a wettest year of 173 mm.
A quieter season to visit Colac
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Colac. That said, June — with days averaging 12.7°C and nights around 8.1°C (mean 10.4°C) and moderate rainfall (77 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 13.2°C | 10.5°C | 7.9°C | 18.0°C | 4.5°C | 76 mm | 78% | 2.5 m/s | 1.9 |
| 2024 | 13.0°C | 10.7°C | 8.3°C | 15.9°C | 5.8°C | 14 mm | 77% | 2.3 m/s | 1.7 |
| 2023 | 13.4°C | 11.2°C | 8.9°C | 18.4°C | 5.1°C | 75 mm | 82% | 2.8 m/s | 1.7 |
| 2022 | 12.7°C | 10.5°C | 8.3°C | 16.1°C | 4.7°C | 45 mm | 83% | 2.9 m/s | 1.7 |
| 2021 | 13.4°C | 10.9°C | 8.5°C | 17.2°C | 5.1°C | 58 mm | 85% | 2.4 m/s | 1.7 |
| 2020 | 12.8°C | 10.2°C | 7.7°C | 15.9°C | 4.6°C | 32 mm | 83% | 2.2 m/s | 1.9 |
| 2019 | 13.3°C | 10.7°C | 8.1°C | 16.4°C | 4.7°C | 79 mm | 84% | 2.4 m/s | 1.9 |
| 2018 | 13.1°C | 10.6°C | 8.1°C | 17.1°C | 5.5°C | 50 mm | 82% | 2.4 m/s | 1.8 |
| 2017 | 13.0°C | 10.5°C | 8.0°C | 15.6°C | 5.6°C | 19 mm | 84% | 2 m/s | 1.7 |
| 2016 | 12.8°C | 10.4°C | 7.9°C | 15.7°C | 4.8°C | 68 mm | 86% | 2.6 m/s | 1.7 |
| 2015 | 12.7°C | 10.5°C | 8.3°C | 16.3°C | 4.2°C | 38 mm | 83% | 2.2 m/s | 1.6 |
| 2014 | 13.4°C | 11.2°C | 9.0°C | 16.4°C | 6.2°C | 122 mm | 88% | 2.6 m/s | 1.6 |
| 2013 | 13.0°C | 10.7°C | 8.4°C | 15.3°C | 4.9°C | 107 mm | 86% | 2.2 m/s | 1.9 |
| 2012 | 12.0°C | 9.9°C | 7.9°C | 15.1°C | 4.5°C | 136 mm | 85% | 2.6 m/s | 1.6 |
| 2011 | 12.9°C | 10.5°C | 8.1°C | 17.2°C | 5.4°C | 84 mm | 85% | 2.7 m/s | 1.8 |
| 2010 | 12.4°C | 10.1°C | 7.9°C | 14.5°C | 4.5°C | 77 mm | 85% | 2.4 m/s | 1.8 |
| 2009 | 13.4°C | 10.8°C | 8.2°C | 17.3°C | 5.5°C | 79 mm | 85% | 2.1 m/s | 1.8 |
| 2008 🔥 | 13.9°C | 11.8°C | 9.7°C | 16.1°C | 6.4°C | 48 mm | 82% | 2.7 m/s | 1.7 |
| 2007 | 11.7°C | 9.9°C | 8.1°C | 13.6°C | 5.2°C | 82 mm | 85% | 2.5 m/s | 1.8 |
| 2006 | 12.2°C | 9.9°C | 7.6°C | 14.5°C | 4.8°C | 30 mm | 84% | 2.1 m/s | 1.9 |
| 2005 | 14.4°C | 11.6°C | 8.8°C | 21.3°C | 5.4°C | 76 mm | 81% | 2.2 m/s | 1.8 |
| 2004 | 12.3°C | 10.3°C | 8.3°C | 18.0°C | 5.7°C | 143 mm | 83% | 3.2 m/s | 1.5 |
| 2003 | 13.1°C | 10.8°C | 8.6°C | 18.0°C | 4.4°C | 83 mm | 84% | 2.8 m/s | 1.8 |
| 2002 | 13.2°C | 10.9°C | 8.6°C | 16.0°C | 4.3°C | 99 mm | 81% | 3.1 m/s | 1.8 |
| 2001 | 13.7°C | 11.6°C | 9.5°C | 17.0°C | 6.0°C | 72 mm | 84% | 2.6 m/s | 1.6 |
| 2000 | 12.8°C | 10.6°C | 8.5°C | 15.7°C | 5.4°C | 59 mm | 85% | 2.6 m/s | 1.7 |
| 1999 | 13.1°C | 10.6°C | 8.1°C | 16.4°C | 5.5°C | 68 mm | 84% | 2.5 m/s | 1.8 |
| 1998 | 12.2°C | 9.9°C | 7.6°C | 18.3°C | 3.5°C | 92 mm | 83% | 2.7 m/s | 1.6 |
| 1997 | 13.2°C | 10.8°C | 8.4°C | 18.0°C | 5.0°C | 41 mm | 82% | 2.5 m/s | 1.6 |
| 1996 | 12.8°C | 10.4°C | 7.9°C | 16.5°C | 4.7°C | 97 mm | 86% | 2.4 m/s | 1.7 |
| 1995 | 11.9°C | 9.9°C | 7.9°C | 16.1°C | 2.7°C | 114 mm | 87% | 2.7 m/s | 1.7 |
| 1994 | 12.5°C | 10.3°C | 8.0°C | 15.5°C | 3.9°C | 70 mm | 84% | 2.5 m/s | 1.9 |
| 1993 | 12.3°C | 10.1°C | 8.0°C | 15.9°C | 5.1°C | 83 mm | 85% | 2.8 m/s | 1.7 |
| 1992 | 11.7°C | 9.7°C | 7.7°C | 15.5°C | 4.1°C | 86 mm | 87% | 2.4 m/s | 1.7 |
| 1991 🌧️ | 13.5°C | 11.5°C | 9.4°C | 16.3°C | 4.8°C | 173 mm | 88% | 2.7 m/s | 1.6 |
| 1990 | 12.6°C | 10.1°C | 7.6°C | 16.3°C | 4.4°C | 87 mm | 85% | 2.7 m/s | 1.8 |
| 1989 | 11.7°C | 9.6°C | 7.5°C | 14.0°C | 3.2°C | 91 mm | 87% | 2.5 m/s | 1.8 |
| 1988 | 13.4°C | 10.9°C | 8.3°C | 18.2°C | 6.4°C | 89 mm | 86% | 2.6 m/s | 1.8 |
| 1987 | 12.9°C | 10.6°C | 8.4°C | 17.5°C | 6.2°C | 81 mm | 89% | 2.2 m/s | 1.8 |
| 1986 | 11.6°C | 9.6°C | 7.6°C | 14.4°C | 3.0°C | 84 mm | 87% | 2.5 m/s | 1.8 |
| 1985 ❄️ | 11.6°C | 9.2°C | 6.8°C | 14.7°C | 3.7°C | 80 mm | 85% | 2.5 m/s | 1.7 |
| 1984 | 13.0°C | 10.4°C | 7.8°C | 18.2°C | 4.1°C | 39 mm | 84% | 2.4 m/s | 1.9 |
| 1983 | 11.6°C | 9.4°C | 7.2°C | 15.1°C | 4.7°C | 92 mm | 88% | 2.4 m/s | — |
| 1982 | 11.9°C | 9.3°C | 6.7°C | 13.7°C | 2.5°C | 59 mm | 83% | 2.3 m/s | — |
| 1981 | 12.0°C | 9.5°C | 7.0°C | 15.5°C | 3.7°C | 77 mm | 84% | 2.7 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 12.7°C with lows near 8.1°C (mean 10.4°C), based on 45 years of NASA POWER data.
June averages 77 mm of rainfall in Colac, a relatively wet time of year. The wettest on record was 173 mm in 1991.
The hottest June reached 21.3°C in 2005. The coldest dipped to 2.5°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.2°C. Daytime highs moved from 12°C to 13.1°C and overnight lows from 7.1°C to 8.4°C over the same span.
June is one of the cooler months of the year in Colac and a relatively wet time of year, so plan for around 12.7°C daytime highs and 8.1°C at night.
Not quite — June is the 3rd coolest month in Colac, averaging 10.4°C.
For June in Colac, pack light layers you can adjust through the day, with typical highs of 12.7°C and lows of 8.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 84% — quite humid.
Average wind speed in June is 2.5 m/s. The windiest June on record averaged 3.2 m/s (2004).
The wettest June on record was 1991 with 173 mm. On average, June sees 77 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 Colac behaves each June, 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 June specifically, along with year-by-year records and how the month has changed over the decades.
