March is one of the warmer months of the year in Colac, with average highs near 21.6°C and lows around 13.6°C (mean 17.6°C). It is one of the drier months, averaging 46 mm of rainfall and 71% relative humidity across the period.
March is one of the warmer months of the year in Colac. Across 45 years of records, the warmest March in Colac was 2013 — when the month averaged 19.9°C — while the coldest was 1987 at 15.4°C. Typical March days reach 21.6°C with nights near 13.6°C. The long-term trend is warming, about 0.2°C per decade.
March is one of the drier months in Colac, averaging 46 mm of rainfall. The wettest March on record was 1984 with 95 mm, while the driest was 2024 at 4 mm.
Relative humidity in Colac during March averages 71%. The most humid March was 2021 at 77%, and the least humid was 2013 at 65%.
March receives about 4.6 kWh/m²/day of solar energy in Colac. The sunniest Marchs were 2006 and 2024 at 5.2 kWh/m²/day, and the cloudiest were 1997, 2011 and 2020 at 4.2.
Average wind speed in Colac during March is 2.3 m/s. The windiest Marchs were 1987, 1995 and 2012, among others at 2.7 m/s, while the calmest were 1994, 2010 and 2025, among others at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.6°C | 17.1°C | 17.6°C | 18.1°C | 17.7°C | +0.1°C |
| Avg High | 21.8°C | 21.0°C | 21.8°C | 22.1°C | 21.5°C | -0.3°C |
| Avg Low | 13.4°C | 13.1°C | 13.5°C | 14.1°C | 13.9°C | +0.5°C |
| Avg Rain | 58 mm | 41 mm | 39 mm | 47 mm | 44 mm | -15 mm |
March temperatures in Colac have stayed relatively stable across the record.
March has ranged from a record low of 8.2°C (1987) to a record high of 36.5°C (2019).
Rainfall in March is one of the drier months, averaging 46 mm, with a wettest year of 95 mm.
One of the best times to visit Colac
March is one of the best times to visit Colac. Expect days averaging 21.6°C and nights around 13.6°C (mean 17.6°C) — warmer than Colac's yearly average — with moderate rainfall (46 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 | 23.9°C | 19.4°C | 15.0°C | 32.4°C | 12.0°C | 32 mm | 69% | 2.1 m/s | 4.9 |
| 2024 | 23.2°C | 18.7°C | 14.2°C | 35.3°C | 11.4°C | 4 mm | 67% | 2.2 m/s | 5.2 |
| 2023 | 20.3°C | 16.8°C | 13.2°C | 28.8°C | 10.5°C | 42 mm | 75% | 2.4 m/s | 4.3 |
| 2022 | 21.6°C | 18.2°C | 14.8°C | 28.4°C | 12.2°C | 65 mm | 76% | 2.3 m/s | 4.4 |
| 2021 | 20.0°C | 16.6°C | 13.1°C | 27.5°C | 10.3°C | 52 mm | 77% | 2.4 m/s | 4.4 |
| 2020 | 20.1°C | 16.7°C | 13.2°C | 27.2°C | 11.5°C | 67 mm | 75% | 2.3 m/s | 4.2 |
| 2019 | 22.7°C | 18.4°C | 14.0°C | 36.5°C | 9.0°C | 31 mm | 68% | 2.3 m/s | 4.8 |
| 2018 | 22.5°C | 18.3°C | 14.1°C | 32.5°C | 10.2°C | 31 mm | 67% | 2.6 m/s | 4.9 |
| 2017 | 23.9°C | 19.7°C | 15.4°C | 31.1°C | 9.8°C | 73 mm | 72% | 2.3 m/s | 5 |
| 2016 | 22.4°C | 18.5°C | 14.6°C | 31.7°C | 12.2°C | 36 mm | 72% | 2.2 m/s | 4.3 |
| 2015 | 19.9°C | 16.0°C | 12.2°C | 25.7°C | 9.4°C | 34 mm | 72% | 2.5 m/s | 4.6 |
| 2014 | 22.2°C | 18.0°C | 13.8°C | 31.6°C | 11.4°C | 49 mm | 72% | 2.2 m/s | 4.4 |
| 2013 🔥 | 24.4°C | 19.9°C | 15.4°C | 34.5°C | 11.2°C | 37 mm | 65% | 2.4 m/s | 4.8 |
| 2012 | 20.7°C | 17.1°C | 13.5°C | 28.8°C | 10.7°C | 64 mm | 72% | 2.7 m/s | 4.6 |
| 2011 | 20.1°C | 16.7°C | 13.2°C | 27.6°C | 10.5°C | 52 mm | 76% | 2.4 m/s | 4.2 |
| 2010 | 22.0°C | 18.2°C | 14.3°C | 29.1°C | 12.2°C | 67 mm | 74% | 2.1 m/s | 4.5 |
| 2009 | 21.0°C | 17.0°C | 13.0°C | 30.5°C | 10.9°C | 49 mm | 73% | 2.4 m/s | 4.5 |
| 2008 | 23.6°C | 18.6°C | 13.6°C | 36.2°C | 9.5°C | 46 mm | 65% | 2.2 m/s | 5.1 |
| 2007 | 22.1°C | 17.9°C | 13.6°C | 32.4°C | 10.6°C | 30 mm | 70% | 2.5 m/s | 4.9 |
| 2006 | 23.2°C | 18.8°C | 14.3°C | 32.9°C | 11.1°C | 22 mm | 71% | 2.2 m/s | 5.2 |
| 2005 | 20.4°C | 16.6°C | 12.8°C | 28.2°C | 10.6°C | 18 mm | 72% | 2.3 m/s | 4.4 |
| 2004 | 20.9°C | 16.8°C | 12.7°C | 31.6°C | 10.6°C | 50 mm | 70% | 2.2 m/s | 4.7 |
| 2003 | 20.6°C | 16.9°C | 13.3°C | 30.2°C | 10.7°C | 52 mm | 75% | 2.6 m/s | 4.4 |
| 2002 | 21.2°C | 17.2°C | 13.2°C | 30.0°C | 11.2°C | 17 mm | 72% | 2.5 m/s | 4.7 |
| 2001 | 21.6°C | 17.7°C | 13.7°C | 31.5°C | 11.5°C | 84 mm | 71% | 2.5 m/s | 4.4 |
| 2000 | 22.9°C | 18.6°C | 14.3°C | 35.0°C | 11.5°C | 22 mm | 69% | 2.4 m/s | 4.5 |
| 1999 | 20.8°C | 17.1°C | 13.4°C | 29.0°C | 9.1°C | 58 mm | 73% | 2.3 m/s | 4.4 |
| 1998 | 21.9°C | 17.6°C | 13.2°C | 34.8°C | 11.0°C | 19 mm | 70% | 2.4 m/s | 4.7 |
| 1997 | 20.1°C | 16.4°C | 12.7°C | 29.3°C | 10.6°C | 34 mm | 73% | 2.5 m/s | 4.2 |
| 1996 | 21.4°C | 17.1°C | 12.9°C | 29.3°C | 9.3°C | 58 mm | 72% | 2.4 m/s | 4.5 |
| 1995 | 19.6°C | 16.1°C | 12.6°C | 29.3°C | 8.2°C | 74 mm | 74% | 2.7 m/s | 4.9 |
| 1994 | 20.8°C | 16.8°C | 12.8°C | 27.2°C | 9.8°C | 15 mm | 73% | 2.1 m/s | 4.8 |
| 1993 | 20.5°C | 17.0°C | 13.5°C | 26.8°C | 11.0°C | 31 mm | 76% | 2.2 m/s | 4.4 |
| 1992 | 21.9°C | 17.9°C | 13.8°C | 32.6°C | 10.9°C | 42 mm | 73% | 2.1 m/s | 4.5 |
| 1991 | 20.8°C | 16.4°C | 11.9°C | 31.2°C | 8.6°C | 48 mm | 70% | 2.3 m/s | 5 |
| 1990 | 22.3°C | 18.1°C | 13.9°C | 28.9°C | 10.4°C | 33 mm | 70% | 2.2 m/s | 4.9 |
| 1989 | 22.4°C | 18.6°C | 14.9°C | 35.9°C | 10.4°C | 78 mm | 73% | 2.2 m/s | 4.3 |
| 1988 | 23.0°C | 18.5°C | 14.0°C | 31.7°C | 10.6°C | 39 mm | 70% | 2.2 m/s | 4.8 |
| 1987 ❄️ | 19.4°C | 15.4°C | 11.4°C | 29.1°C | 8.2°C | 52 mm | 70% | 2.7 m/s | 4.5 |
| 1986 | 22.7°C | 17.9°C | 13.1°C | 33.1°C | 10.8°C | 12 mm | 66% | 2.3 m/s | 5 |
| 1985 | 23.1°C | 18.8°C | 14.4°C | 32.7°C | 11.4°C | 57 mm | 71% | 2.2 m/s | 4.5 |
| 1984 🌧️ | 20.2°C | 16.2°C | 12.2°C | 29.6°C | 8.6°C | 95 mm | 71% | 2.7 m/s | 4.5 |
| 1983 | 21.5°C | 17.8°C | 14.1°C | 32.0°C | 9.2°C | 95 mm | 74% | 2.4 m/s | — |
| 1982 | 23.2°C | 18.6°C | 13.9°C | 32.1°C | 10.4°C | 46 mm | 68% | 2.2 m/s | — |
| 1981 | 20.9°C | 16.9°C | 12.9°C | 29.0°C | 10.6°C | 52 mm | 70% | 2.4 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 21.6°C with lows near 13.6°C (mean 17.6°C), based on 45 years of NASA POWER data.
March averages 46 mm of rainfall in Colac, one of the drier months. The wettest on record was 95 mm in 1984.
The hottest March reached 36.5°C in 2019. The coldest dipped to 8.2°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 0.2°C. Daytime highs moved from 21.8°C to 21.8°C and overnight lows from 13.5°C to 14.1°C over the same span.
March is one of the warmer months of the year in Colac and one of the drier months, so plan for around 21.6°C daytime highs and 13.6°C at night.
Not quite — March is the 10th coolest month in Colac, averaging 17.6°C.
For March in Colac, pack light layers you can adjust through the day, with typical highs of 21.6°C and lows of 13.6°C.
Relative humidity in March averages 71% — moderately humid.
Average wind speed in March is 2.3 m/s. The windiest March on record averaged 2.7 m/s (1984).
The wettest March on record was 1984 with 95 mm. On average, March sees 46 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 March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
