March is one of the warmer months of the year in Bunbury, with average highs near 28.5°C and lows around 15.7°C (mean 22.1°C). It is one of the drier months, averaging 20 mm of rainfall and 58% relative humidity across the period.
March is one of the warmer months of the year in Bunbury. Across 45 years of records, the warmest Marchs in Bunbury were 2011 and 2025 — when the month averaged 23.9°C — while the coldest was 1986 at 19.7°C. Typical March days reach 28.5°C with nights near 15.7°C. The long-term trend is warming, about 0.2°C per decade.
March is one of the drier months in Bunbury, averaging 20 mm of rainfall. The wettest March on record was 1998 with 82 mm, while the driest were 2011 and 2012 at 1 mm.
Relative humidity in Bunbury during March averages 58%. The most humid March was 2013 at 64%, and the least humid was 2012 at 51%.
March receives about 5.5 kWh/m²/day of solar energy in Bunbury. The sunniest March was 1995 at 6.1 kWh/m²/day, and the cloudiest were 2005 and 2013 at 5.
Average wind speed in Bunbury during March is 3.9 m/s. The windiest March was 1997 at 4.5 m/s, while the calmest was 2002 at 3.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.8°C | 21.9°C | 21.9°C | 22.2°C | 22.9°C | +1.1°C |
| Avg High | 28.5°C | 28.1°C | 28.2°C | 28.5°C | 29.3°C | +0.8°C |
| Avg Low | 15.2°C | 15.6°C | 15.5°C | 15.8°C | 16.6°C | +1.4°C |
| Avg Rain | 17 mm | 27 mm | 20 mm | 20 mm | 17 mm | +1 mm |
March temperatures in Bunbury have risen by about 1.3°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 8.6°C (2007) to a record high of 40.3°C (2007).
Rainfall in March is one of the drier months, averaging 20 mm, with a wettest year of 82 mm.
One of the best times to visit Bunbury
March is one of the best times to visit Bunbury. Expect days averaging 28.5°C and nights around 15.7°C (mean 22.1°C) — warmer than Bunbury's yearly average — with low rainfall (20 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 | 30.8°C | 23.9°C | 17.0°C | 38.0°C | 12.4°C | 14 mm | 56% | 3.8 m/s | 5.8 |
| 2024 | 29.8°C | 22.9°C | 15.9°C | 35.4°C | 12.2°C | 2 mm | 55% | 4.2 m/s | 5.8 |
| 2023 | 28.9°C | 22.6°C | 16.3°C | 35.7°C | 12.1°C | 29 mm | 60% | 3.9 m/s | 5.4 |
| 2022 | 29.1°C | 22.9°C | 16.8°C | 37.5°C | 12.3°C | 13 mm | 59% | 3.9 m/s | 5.3 |
| 2021 | 28.6°C | 22.6°C | 16.6°C | 35.8°C | 11.9°C | 15 mm | 62% | 3.5 m/s | 5.1 |
| 2020 | 28.4°C | 22.5°C | 16.7°C | 34.7°C | 13.3°C | 30 mm | 60% | 3.8 m/s | 5.2 |
| 2019 | 28.7°C | 22.1°C | 15.5°C | 35.6°C | 10.0°C | 21 mm | 59% | 4 m/s | 5.4 |
| 2018 | 28.4°C | 22.1°C | 15.8°C | 35.7°C | 10.8°C | 8 mm | 61% | 4 m/s | 5.4 |
| 2017 | 27.2°C | 21.1°C | 15.0°C | 35.7°C | 10.0°C | 30 mm | 63% | 4.2 m/s | 5.4 |
| 2016 | 28.5°C | 22.2°C | 16.0°C | 36.3°C | 13.0°C | 27 mm | 62% | 4 m/s | 5.5 |
| 2015 | 28.1°C | 21.7°C | 15.3°C | 35.0°C | 10.3°C | 36 mm | 61% | 3.9 m/s | 5.5 |
| 2014 | 28.6°C | 22.3°C | 16.0°C | 35.8°C | 12.7°C | 16 mm | 60% | 3.9 m/s | 5.4 |
| 2013 | 26.9°C | 21.0°C | 15.2°C | 33.6°C | 11.0°C | 41 mm | 64% | 3.7 m/s | 5 |
| 2012 | 29.5°C | 22.7°C | 15.9°C | 35.5°C | 12.6°C | 1 mm | 51% | 3.8 m/s | 5.9 |
| 2011 🔥 | 30.6°C | 23.9°C | 17.2°C | 34.8°C | 13.4°C | 1 mm | 55% | 4 m/s | 5.9 |
| 2010 | 29.0°C | 22.7°C | 16.5°C | 36.0°C | 12.5°C | 18 mm | 59% | 3.8 m/s | 5.4 |
| 2009 | 27.0°C | 21.1°C | 15.2°C | 34.4°C | 11.1°C | 11 mm | 58% | 3.9 m/s | 5.3 |
| 2008 | 28.6°C | 22.1°C | 15.5°C | 35.9°C | 12.0°C | 52 mm | 59% | 4.3 m/s | 5.5 |
| 2007 | 28.4°C | 21.9°C | 15.4°C | 40.3°C | 8.6°C | 16 mm | 56% | 3.9 m/s | 5.8 |
| 2006 | 28.6°C | 22.1°C | 15.6°C | 36.6°C | 10.8°C | 12 mm | 57% | 3.8 m/s | 5.7 |
| 2005 | 29.3°C | 23.5°C | 17.7°C | 37.6°C | 11.8°C | 39 mm | 60% | 3.6 m/s | 5 |
| 2004 | 27.9°C | 21.2°C | 14.5°C | 38.8°C | 9.9°C | 4 mm | 56% | 3.7 m/s | 5.8 |
| 2003 | 29.1°C | 22.9°C | 16.8°C | 37.2°C | 11.1°C | 22 mm | 59% | 4.1 m/s | 5.6 |
| 2002 | 27.8°C | 21.4°C | 14.9°C | 32.9°C | 11.7°C | 9 mm | 59% | 3.3 m/s | 5.7 |
| 2001 | 28.0°C | 21.5°C | 15.1°C | 37.9°C | 8.9°C | 3 mm | 56% | 4 m/s | 6 |
| 2000 | 27.4°C | 20.9°C | 14.4°C | 36.0°C | 11.1°C | 34 mm | 60% | 4 m/s | 5.6 |
| 1999 | 28.0°C | 22.2°C | 16.3°C | 33.2°C | 12.4°C | 22 mm | 61% | 4.2 m/s | 5.2 |
| 1998 🌧️ | 29.2°C | 22.6°C | 16.1°C | 37.3°C | 11.5°C | 82 mm | 60% | 3.8 m/s | 5.3 |
| 1997 | 27.1°C | 20.9°C | 14.6°C | 32.0°C | 11.9°C | 13 mm | 62% | 4.5 m/s | 5.5 |
| 1996 | 27.4°C | 21.0°C | 14.6°C | 36.1°C | 10.9°C | 9 mm | 57% | 4.3 m/s | 5.5 |
| 1995 | 30.6°C | 23.3°C | 15.9°C | 35.3°C | 11.5°C | 4 mm | 53% | 4.1 m/s | 6.1 |
| 1994 | 29.8°C | 23.0°C | 16.3°C | 36.6°C | 12.0°C | 5 mm | 57% | 3.7 m/s | 5.7 |
| 1993 | 26.0°C | 20.3°C | 14.5°C | 34.2°C | 10.5°C | 65 mm | 61% | 4 m/s | 5.5 |
| 1992 | 27.0°C | 21.3°C | 15.5°C | 33.6°C | 11.9°C | 25 mm | 63% | 4.1 m/s | 5.4 |
| 1991 | 27.7°C | 21.6°C | 15.4°C | 37.8°C | 11.0°C | 7 mm | 59% | 3.8 m/s | 5.5 |
| 1990 | 28.3°C | 22.3°C | 16.3°C | 34.2°C | 10.7°C | 33 mm | 60% | 3.8 m/s | 5.1 |
| 1989 | 29.3°C | 22.6°C | 15.8°C | 33.0°C | 11.5°C | 4 mm | 54% | 4.1 m/s | 5.9 |
| 1988 | 30.2°C | 23.7°C | 17.2°C | 38.5°C | 13.7°C | 19 mm | 52% | 4.3 m/s | 5.2 |
| 1987 | 28.0°C | 22.1°C | 16.2°C | 33.5°C | 11.2°C | 41 mm | 56% | 3.8 m/s | 5.2 |
| 1986 ❄️ | 26.3°C | 19.7°C | 13.2°C | 33.5°C | 9.5°C | 31 mm | 61% | 3.7 m/s | 5.4 |
| 1985 | 29.9°C | 22.9°C | 16.0°C | 36.0°C | 10.7°C | 12 mm | 55% | 3.8 m/s | 5.7 |
| 1984 | 27.0°C | 20.5°C | 14.0°C | 37.7°C | 10.2°C | 10 mm | 57% | 3.5 m/s | 5.4 |
| 1983 | 30.0°C | 23.1°C | 16.1°C | 35.2°C | 13.3°C | 10 mm | 54% | 3.7 m/s | — |
| 1982 | 26.6°C | 20.1°C | 13.6°C | 31.8°C | 9.8°C | 7 mm | 56% | 3.9 m/s | — |
| 1981 | 28.9°C | 21.9°C | 14.9°C | 34.5°C | 11.3°C | 15 mm | 54% | 3.7 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 28.5°C with lows near 15.7°C (mean 22.1°C), based on 45 years of NASA POWER data.
March averages 20 mm of rainfall in Bunbury, one of the drier months. The wettest on record was 82 mm in 1998.
The hottest March reached 40.3°C in 2007. The coldest dipped to 8.6°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.3°C. Daytime highs moved from 28.5°C to 29.4°C and overnight lows from 14.9°C to 16.5°C over the same span.
March is one of the warmer months of the year in Bunbury and one of the drier months, so plan for around 28.5°C daytime highs and 15.7°C at night.
Not quite — March is the 10th coolest month in Bunbury, averaging 22.1°C.
For March in Bunbury, pack light layers you can adjust through the day, with typical highs of 28.5°C and lows of 15.7°C.
Relative humidity in March averages 58% — moderately humid.
Average wind speed in March is 3.9 m/s. The windiest March on record averaged 4.5 m/s (1997).
The wettest March on record was 1998 with 82 mm. On average, March sees 20 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 Bunbury 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.
