March is one of the warmer months of the year in Mount Barker, with average highs near 26.9°C and lows around 13.2°C (mean 20°C). It is one of the drier months, averaging 33 mm of rainfall and 65% relative humidity across the period.
March is one of the warmer months of the year in Mount Barker. Across 45 years of records, the warmest March in Mount Barker was 2025 — when the month averaged 22.3°C — while the coldest was 1982 at 17.5°C. Typical March days reach 26.9°C with nights near 13.2°C. The long-term trend is warming, about 0.3°C per decade.
March is one of the drier months in Mount Barker, averaging 33 mm of rainfall. The wettest March on record was 1998 with 93 mm, while the driest was 1994 at 4 mm.
Relative humidity in Mount Barker during March averages 65%. The most humid March was 2016 at 71%, and the least humid was 2012 at 57%.
March receives about 5.1 kWh/m²/day of solar energy in Mount Barker. The sunniest March was 2007 at 5.8 kWh/m²/day, and the cloudiest was 2013 at 4.3.
Average wind speed in Mount Barker during March is 3.6 m/s. The windiest March was 1999 at 4.1 m/s, while the calmest were 1982 and 2013 at 3.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.7°C | 19.7°C | 20.0°C | 20.1°C | 21.1°C | +1.4°C |
| Avg High | 26.9°C | 26.4°C | 26.9°C | 26.8°C | 27.8°C | +0.9°C |
| Avg Low | 12.6°C | 13.1°C | 13.1°C | 13.4°C | 14.3°C | +1.7°C |
| Avg Rain | 24 mm | 37 mm | 38 mm | 35 mm | 28 mm | +5 mm |
March temperatures in Mount Barker have risen by about 1.7°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 6°C (1982) to a record high of 40.8°C (1998).
Rainfall in March is one of the drier months, averaging 33 mm, with a wettest year of 93 mm.
One of the best times to visit Mount Barker
March is one of the best times to visit Mount Barker. Expect days averaging 26.9°C and nights around 13.2°C (mean 20°C) — warmer than Mount Barker's yearly average — with moderate rainfall (33 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 🔥 | 29.6°C | 22.3°C | 14.9°C | 39.5°C | 10.4°C | 61 mm | 64% | 3.7 m/s | 5.6 |
| 2024 | 27.9°C | 20.7°C | 13.5°C | 34.7°C | 9.1°C | 6 mm | 62% | 4 m/s | 5.3 |
| 2023 | 27.0°C | 20.5°C | 13.9°C | 34.5°C | 9.1°C | 30 mm | 67% | 3.6 m/s | 5.1 |
| 2022 | 26.9°C | 20.7°C | 14.4°C | 36.3°C | 10.6°C | 17 mm | 64% | 3.9 m/s | 4.7 |
| 2021 | 28.8°C | 21.8°C | 14.8°C | 38.7°C | 9.2°C | 13 mm | 62% | 3.4 m/s | 4.9 |
| 2020 | 26.8°C | 20.4°C | 14.0°C | 35.1°C | 11.1°C | 43 mm | 67% | 3.8 m/s | 5 |
| 2019 | 25.7°C | 19.4°C | 13.2°C | 32.8°C | 9.4°C | 42 mm | 68% | 3.4 m/s | 5 |
| 2018 | 27.3°C | 20.4°C | 13.6°C | 35.0°C | 9.1°C | 13 mm | 64% | 3.8 m/s | 5.1 |
| 2017 | 25.6°C | 19.1°C | 12.5°C | 36.4°C | 6.0°C | 45 mm | 69% | 3.8 m/s | 5 |
| 2016 | 26.3°C | 20.0°C | 13.7°C | 35.2°C | 10.6°C | 53 mm | 71% | 3.6 m/s | 4.7 |
| 2015 | 26.5°C | 19.8°C | 13.0°C | 38.7°C | 6.8°C | 40 mm | 68% | 3.3 m/s | 5.1 |
| 2014 | 27.7°C | 20.6°C | 13.4°C | 37.1°C | 10.3°C | 16 mm | 65% | 3.5 m/s | 5.2 |
| 2013 | 25.0°C | 19.0°C | 13.0°C | 31.5°C | 10.0°C | 80 mm | 71% | 3.2 m/s | 4.3 |
| 2012 | 28.3°C | 20.9°C | 13.5°C | 38.2°C | 9.5°C | 10 mm | 57% | 3.6 m/s | 5.7 |
| 2011 | 28.2°C | 20.9°C | 13.7°C | 35.7°C | 9.7°C | 15 mm | 66% | 3.5 m/s | 5.5 |
| 2010 | 27.0°C | 20.6°C | 14.3°C | 37.5°C | 8.7°C | 38 mm | 65% | 3.6 m/s | 4.7 |
| 2009 | 25.2°C | 18.8°C | 12.3°C | 37.2°C | 8.5°C | 54 mm | 65% | 3.6 m/s | 5.2 |
| 2008 | 27.3°C | 20.3°C | 13.3°C | 37.3°C | 8.4°C | 36 mm | 66% | 3.8 m/s | 5.3 |
| 2007 | 27.3°C | 20.1°C | 13.0°C | 40.7°C | 8.2°C | 29 mm | 60% | 3.8 m/s | 5.8 |
| 2006 | 27.1°C | 20.0°C | 13.0°C | 35.6°C | 8.2°C | 27 mm | 64% | 3.5 m/s | 5.7 |
| 2005 | 28.9°C | 22.0°C | 15.0°C | 39.2°C | 10.7°C | 80 mm | 63% | 3.8 m/s | 5 |
| 2004 | 26.4°C | 19.5°C | 12.6°C | 37.6°C | 8.4°C | 19 mm | 63% | 3.4 m/s | 5.3 |
| 2003 | 28.3°C | 21.4°C | 14.5°C | 39.8°C | 9.0°C | 41 mm | 64% | 3.9 m/s | 5.3 |
| 2002 | 27.9°C | 20.4°C | 12.9°C | 36.1°C | 9.3°C | 13 mm | 62% | 3.3 m/s | 5.2 |
| 2001 | 25.9°C | 19.3°C | 12.6°C | 37.1°C | 9.5°C | 22 mm | 63% | 3.5 m/s | 5.1 |
| 2000 | 24.6°C | 18.3°C | 12.0°C | 35.4°C | 7.7°C | 61 mm | 69% | 3.4 m/s | 5.4 |
| 1999 | 26.0°C | 19.9°C | 13.8°C | 36.0°C | 10.3°C | 38 mm | 69% | 4.1 m/s | 4.8 |
| 1998 🌧️ | 27.1°C | 20.3°C | 13.4°C | 40.8°C | 8.0°C | 93 mm | 68% | 3.5 m/s | 5.1 |
| 1997 | 24.2°C | 18.4°C | 12.7°C | 30.8°C | 10.8°C | 33 mm | 69% | 3.9 m/s | 4.9 |
| 1996 | 25.1°C | 18.6°C | 12.1°C | 40.0°C | 7.8°C | 16 mm | 64% | 3.9 m/s | 5.2 |
| 1995 | 27.9°C | 20.7°C | 13.6°C | 38.3°C | 9.0°C | 17 mm | 64% | 3.8 m/s | 5.7 |
| 1994 | 29.8°C | 21.7°C | 13.7°C | 38.4°C | 8.5°C | 4 mm | 61% | 3.5 m/s | 5.6 |
| 1993 | 24.2°C | 18.2°C | 12.3°C | 34.4°C | 8.7°C | 88 mm | 69% | 3.7 m/s | 4.7 |
| 1992 | 26.4°C | 19.9°C | 13.4°C | 39.1°C | 9.1°C | 27 mm | 67% | 3.6 m/s | 5 |
| 1991 | 26.1°C | 19.4°C | 12.7°C | 40.2°C | 8.0°C | 16 mm | 66% | 3.8 m/s | 5.1 |
| 1990 | 27.0°C | 20.3°C | 13.6°C | 36.2°C | 7.6°C | 35 mm | 66% | 3.4 m/s | 4.7 |
| 1989 | 26.7°C | 20.1°C | 13.5°C | 33.6°C | 9.9°C | 13 mm | 64% | 3.8 m/s | 5.3 |
| 1988 | 28.2°C | 21.2°C | 14.3°C | 38.1°C | 10.1°C | 28 mm | 60% | 3.9 m/s | 4.7 |
| 1987 | 27.6°C | 20.4°C | 13.1°C | 34.7°C | 7.8°C | 23 mm | 57% | 3.4 m/s | 5.2 |
| 1986 | 25.8°C | 18.4°C | 11.1°C | 36.1°C | 7.0°C | 22 mm | 65% | 3.6 m/s | 5.4 |
| 1985 | 28.2°C | 21.0°C | 13.8°C | 39.1°C | 8.2°C | 30 mm | 62% | 3.5 m/s | 5.3 |
| 1984 | 26.0°C | 18.9°C | 11.7°C | 37.6°C | 7.9°C | 24 mm | 60% | 3.3 m/s | 4.9 |
| 1983 | 27.6°C | 20.5°C | 13.3°C | 33.4°C | 10.8°C | 18 mm | 63% | 3.8 m/s | — |
| 1982 ❄️ | 24.5°C | 17.5°C | 10.5°C | 33.8°C | 6.0°C | 44 mm | 66% | 3.2 m/s | — |
| 1981 | 27.2°C | 19.6°C | 12.1°C | 33.4°C | 7.7°C | 11 mm | 61% | 3.3 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 26.9°C with lows near 13.2°C (mean 20°C), based on 45 years of NASA POWER data.
March averages 33 mm of rainfall in Mount Barker, one of the drier months. The wettest on record was 93 mm in 1998.
The hottest March reached 40.8°C in 1998. The coldest dipped to 6°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.7°C. Daytime highs moved from 26.7°C to 28°C and overnight lows from 12.3°C to 14.3°C over the same span.
March is one of the warmer months of the year in Mount Barker and one of the drier months, so plan for around 26.9°C daytime highs and 13.2°C at night.
Not quite — March is the 10th coolest month in Mount Barker, averaging 20°C.
For March in Mount Barker, pack light layers you can adjust through the day, with typical highs of 26.9°C and lows of 13.2°C.
Relative humidity in March averages 65% — moderately humid.
Average wind speed in March is 3.6 m/s. The windiest March on record averaged 4.1 m/s (1999).
The wettest March on record was 1998 with 93 mm. On average, March sees 33 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 Mount Barker 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.
