March is one of the warmer months of the year in Perth, with average highs near 26.1°C and lows around 19.3°C (mean 22.7°C). It is one of the drier months, averaging 21 mm of rainfall and 65% relative humidity across the period.
March is one of the warmer months of the year in Perth. Across 45 years of records, the warmest March in Perth was 2011 — when the month averaged 24.6°C — while the coldest was 1993 at 20.9°C. Typical March days reach 26.1°C with nights near 19.3°C. The long-term trend is warming, about 0.2°C per decade.
March is one of the drier months in Perth, averaging 21 mm of rainfall. The wettest March on record was 1990 with 83 mm, while the driest was 2012 at 0 mm.
Relative humidity in Perth during March averages 65%. The most humid March was 1992 at 73%, and the least humid was 2012 at 59%.
March receives about 6 kWh/m²/day of solar energy in Perth. The sunniest Marchs were 2011 and 2012 at 6.6 kWh/m²/day, and the cloudiest was 2005 at 5.2.
Average wind speed in Perth during March is 5.2 m/s. The windiest March was 1996 at 6 m/s, while the calmest was 2005 at 4.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.5°C | 22.4°C | 22.6°C | 22.7°C | 23.3°C | +0.8°C |
| Avg High | 26.2°C | 25.8°C | 26.1°C | 26.1°C | 26.6°C | +0.4°C |
| Avg Low | 18.9°C | 19.1°C | 19.1°C | 19.5°C | 20.0°C | +1.1°C |
| Avg Rain | 14 mm | 28 mm | 19 mm | 20 mm | 23 mm | +10 mm |
March temperatures in Perth have risen by about 1.1°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 13.4°C (2001) to a record high of 37.3°C (2007).
Rainfall in March is one of the drier months, averaging 21 mm, with a wettest year of 83 mm.
One of the best times to visit Perth
March is one of the best times to visit Perth. Expect days averaging 26.1°C and nights around 19.3°C (mean 22.7°C) — warmer than Perth's yearly average — with low rainfall (21 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 | 27.6°C | 24.1°C | 20.7°C | 33.9°C | 17.4°C | 10 mm | 64% | 5 m/s | 6.4 |
| 2024 | 26.6°C | 23.0°C | 19.3°C | 32.8°C | 16.1°C | 7 mm | 64% | 5.3 m/s | 6.4 |
| 2023 | 26.2°C | 23.0°C | 19.7°C | 33.6°C | 17.0°C | 53 mm | 67% | 4.9 m/s | 6.1 |
| 2022 | 26.9°C | 23.6°C | 20.3°C | 33.4°C | 16.4°C | 7 mm | 67% | 5.1 m/s | 5.6 |
| 2021 | 26.1°C | 23.1°C | 20.0°C | 33.7°C | 15.7°C | 32 mm | 67% | 4.7 m/s | 5.9 |
| 2020 | 25.9°C | 22.9°C | 19.9°C | 31.8°C | 16.2°C | 31 mm | 66% | 4.8 m/s | 5.8 |
| 2019 | 26.0°C | 22.7°C | 19.4°C | 35.0°C | 14.7°C | 9 mm | 67% | 4.8 m/s | 6 |
| 2018 | 26.0°C | 22.7°C | 19.4°C | 33.0°C | 15.5°C | 8 mm | 67% | 5.5 m/s | 6 |
| 2017 | 24.8°C | 21.7°C | 18.6°C | 32.6°C | 14.9°C | 12 mm | 69% | 5.3 m/s | 5.9 |
| 2016 | 25.8°C | 22.6°C | 19.5°C | 34.1°C | 16.7°C | 41 mm | 69% | 5.2 m/s | 5.9 |
| 2015 | 25.6°C | 22.4°C | 19.2°C | 31.2°C | 14.8°C | 30 mm | 67% | 5.3 m/s | 5.9 |
| 2014 | 26.0°C | 22.8°C | 19.6°C | 32.5°C | 16.2°C | 11 mm | 66% | 5.3 m/s | 5.9 |
| 2013 | 24.8°C | 21.8°C | 18.8°C | 31.1°C | 15.6°C | 65 mm | 69% | 4.9 m/s | 5.8 |
| 2012 | 27.1°C | 23.3°C | 19.5°C | 34.5°C | 16.7°C | 0 mm | 59% | 5.3 m/s | 6.6 |
| 2011 🔥 | 28.1°C | 24.6°C | 21.1°C | 32.7°C | 17.8°C | 1 mm | 62% | 5.4 m/s | 6.6 |
| 2010 | 26.3°C | 22.9°C | 19.6°C | 33.8°C | 15.7°C | 23 mm | 66% | 5.2 m/s | 6 |
| 2009 | 25.1°C | 22.0°C | 18.8°C | 34.1°C | 15.0°C | 7 mm | 65% | 5.2 m/s | 6.1 |
| 2008 | 26.1°C | 22.8°C | 19.5°C | 31.6°C | 16.0°C | 34 mm | 66% | 5.5 m/s | 6.1 |
| 2007 | 26.3°C | 22.6°C | 18.9°C | 37.3°C | 13.6°C | 7 mm | 62% | 5.5 m/s | 6.4 |
| 2006 | 26.8°C | 23.0°C | 19.2°C | 34.1°C | 15.5°C | 11 mm | 63% | 5.2 m/s | 6.2 |
| 2005 | 26.9°C | 23.8°C | 20.7°C | 33.2°C | 14.8°C | 51 mm | 70% | 4.5 m/s | 5.2 |
| 2004 | 25.6°C | 21.8°C | 17.9°C | 35.8°C | 14.0°C | 3 mm | 63% | 5.5 m/s | 6.5 |
| 2003 | 26.4°C | 23.2°C | 20.0°C | 34.5°C | 15.8°C | 47 mm | 67% | 5 m/s | 6.1 |
| 2002 | 25.2°C | 22.0°C | 18.8°C | 32.4°C | 16.4°C | 4 mm | 66% | 4.8 m/s | 6.2 |
| 2001 | 26.1°C | 22.4°C | 18.6°C | 34.6°C | 13.4°C | 2 mm | 60% | 5.4 m/s | 6.4 |
| 2000 | 26.0°C | 22.4°C | 18.7°C | 33.8°C | 15.5°C | 21 mm | 64% | 5.5 m/s | 6.1 |
| 1999 | 25.6°C | 22.7°C | 19.8°C | 29.9°C | 16.2°C | 31 mm | 69% | 5.2 m/s | 5.9 |
| 1998 | 27.0°C | 23.3°C | 19.5°C | 31.8°C | 16.0°C | 53 mm | 63% | 4.6 m/s | 6 |
| 1997 | 25.2°C | 21.8°C | 18.3°C | 30.7°C | 15.7°C | 37 mm | 66% | 5.8 m/s | 6.2 |
| 1996 | 25.4°C | 21.9°C | 18.3°C | 34.8°C | 15.7°C | 7 mm | 64% | 6 m/s | 6.1 |
| 1995 | 28.1°C | 24.0°C | 20.0°C | 33.9°C | 15.4°C | 7 mm | 61% | 4.9 m/s | 6 |
| 1994 | 27.0°C | 23.3°C | 19.6°C | 34.5°C | 16.1°C | 4 mm | 65% | 4.7 m/s | 6.2 |
| 1993 ❄️ | 23.9°C | 20.9°C | 18.0°C | 32.3°C | 14.4°C | 24 mm | 67% | 5.2 m/s | 5.9 |
| 1992 | 24.1°C | 21.5°C | 18.8°C | 27.6°C | 16.0°C | 29 mm | 73% | 5.5 m/s | 5.5 |
| 1991 | 25.1°C | 21.8°C | 18.6°C | 36.5°C | 13.9°C | 3 mm | 67% | 5 m/s | 6 |
| 1990 🌧️ | 26.1°C | 22.9°C | 19.7°C | 36.0°C | 15.4°C | 83 mm | 69% | 5.1 m/s | 5.5 |
| 1989 | 27.1°C | 23.3°C | 19.4°C | 30.4°C | 16.5°C | 1 mm | 61% | 5.4 m/s | 6.5 |
| 1988 | 27.9°C | 24.2°C | 20.5°C | 35.9°C | 16.5°C | 14 mm | 59% | 5.2 m/s | 5.5 |
| 1987 | 26.1°C | 22.8°C | 19.5°C | 32.2°C | 15.6°C | 31 mm | 62% | 4.7 m/s | 5.7 |
| 1986 | 24.4°C | 21.0°C | 17.6°C | 31.2°C | 13.6°C | 19 mm | 66% | 5.1 m/s | 5.6 |
| 1985 | 27.3°C | 23.6°C | 19.8°C | 34.5°C | 16.1°C | 7 mm | 61% | 5 m/s | 6.3 |
| 1984 | 24.4°C | 21.0°C | 17.7°C | 34.9°C | 14.4°C | 24 mm | 65% | 5.1 m/s | 5.7 |
| 1983 | 27.3°C | 23.5°C | 19.8°C | 32.6°C | 17.1°C | 10 mm | 61% | 4.9 m/s | — |
| 1982 | 24.7°C | 21.0°C | 17.3°C | 31.2°C | 14.5°C | 10 mm | 62% | 5.7 m/s | — |
| 1981 | 26.5°C | 22.5°C | 18.5°C | 32.2°C | 15.4°C | 6 mm | 60% | 5 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 26.1°C with lows near 19.3°C (mean 22.7°C), based on 45 years of NASA POWER data.
March averages 21 mm of rainfall in Perth, one of the drier months. The wettest on record was 83 mm in 1990.
The hottest March reached 37.3°C in 2007. The coldest dipped to 13.4°C in 2001.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.1°C. Daytime highs moved from 26°C to 26.7°C and overnight lows from 18.6°C to 20°C over the same span.
March is one of the warmer months of the year in Perth and one of the drier months, so plan for around 26.1°C daytime highs and 19.3°C at night.
Not quite — March is the 10th coolest month in Perth, averaging 22.7°C.
For March in Perth, pack light layers you can adjust through the day, with typical highs of 26.1°C and lows of 19.3°C.
Relative humidity in March averages 65% — moderately humid.
Average wind speed in March is 5.2 m/s. The windiest March on record averaged 6 m/s (1996).
The wettest March on record was 1990 with 83 mm. On average, March sees 21 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 Perth 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.
