March is one of the cooler months of the year in Perth, with average highs near 7°C and lows around 1.5°C (mean 4.3°C). It is about average for rainfall, averaging 73 mm of rainfall and 90% relative humidity across the period.
March is one of the cooler months of the year in Perth. Across 45 years of records, the warmest March in Perth was 2012 — when the month averaged 6.9°C — while the coldest was 2013 at 1.4°C. Typical March days reach 7°C with nights near 1.5°C. The long-term trend is warming, about 0.3°C per decade.
March is about average for rainfall in Perth, averaging 73 mm of rainfall. The wettest March on record was 2006 with 150 mm, while the driest was 2012 at 20 mm.
Relative humidity in Perth during March averages 90%. The most humid March was 1991 at 93%, and the least humid was 2013 at 87%.
March receives about 2 kWh/m²/day of solar energy in Perth. The sunniest Marchs were 2012 and 2022 at 2.6 kWh/m²/day, and the cloudiest was 1985 at 1.5.
Average wind speed in Perth during March is 4.2 m/s. The windiest Marchs were 1990 and 1994 at 6.4 m/s, while the calmest were 2016, 2022 and 2023, among others at 3.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 3.4°C | 4.4°C | 4.4°C | 4.3°C | 5.1°C | +1.7°C |
| Avg High | 6.1°C | 7.1°C | 7.1°C | 7.1°C | 8.0°C | +1.9°C |
| Avg Low | 0.8°C | 1.8°C | 1.7°C | 1.6°C | 2.1°C | +1.3°C |
| Avg Rain | 87 mm | 73 mm | 70 mm | 68 mm | 66 mm | -21 mm |
March temperatures in Perth have risen by about 1.6°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -8.9°C (1986) to a record high of 17°C (2012).
Rainfall in March is about average for rainfall, averaging 73 mm, with a wettest year of 150 mm.
A quieter season to visit Perth
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Perth. That said, March — with days averaging 7°C and nights around 1.5°C (mean 4.3°C) and moderate rainfall (73 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 | 9.5°C | 6.1°C | 2.7°C | 14.6°C | -0.8°C | 33 mm | 89% | 3.8 m/s | 2.5 |
| 2024 | 7.6°C | 5.3°C | 2.9°C | 11.3°C | -1.0°C | 112 mm | 91% | 4.2 m/s | 2 |
| 2023 | 6.7°C | 3.9°C | 1.2°C | 12.7°C | -3.4°C | 102 mm | 90% | 3.1 m/s | 2.2 |
| 2022 | 8.9°C | 5.6°C | 2.2°C | 14.9°C | -1.4°C | 57 mm | 90% | 3.1 m/s | 2.6 |
| 2021 | 8.3°C | 5.4°C | 2.6°C | 13.2°C | -1.9°C | 48 mm | 90% | 4.1 m/s | 2.3 |
| 2020 | 7.2°C | 4.2°C | 1.1°C | 10.8°C | -1.2°C | 42 mm | 90% | 4.3 m/s | 2.3 |
| 2019 | 7.7°C | 5.1°C | 2.6°C | 11.2°C | -2.2°C | 81 mm | 89% | 5 m/s | 2.3 |
| 2018 | 4.6°C | 2.3°C | 0.1°C | 8.6°C | -2.9°C | 115 mm | 90% | 4.3 m/s | 1.8 |
| 2017 | 8.3°C | 5.4°C | 2.5°C | 14.0°C | -1.7°C | 66 mm | 89% | 3.6 m/s | 2.3 |
| 2016 | 7.5°C | 4.5°C | 1.5°C | 10.6°C | -2.5°C | 53 mm | 91% | 3.1 m/s | 2.2 |
| 2015 | 7.1°C | 4.3°C | 1.5°C | 10.5°C | -0.7°C | 70 mm | 89% | 4.7 m/s | 2.2 |
| 2014 | 7.7°C | 5.1°C | 2.5°C | 10.2°C | -1.3°C | 66 mm | 90% | 4.8 m/s | 2.2 |
| 2013 ❄️ | 3.5°C | 1.4°C | -0.6°C | 8.6°C | -2.9°C | 56 mm | 87% | 4.2 m/s | 1.7 |
| 2012 🔥 | 10.3°C | 6.9°C | 3.5°C | 17.0°C | -0.9°C | 20 mm | 88% | 3.6 m/s | 2.6 |
| 2011 | 7.5°C | 4.5°C | 1.5°C | 12.4°C | -2.8°C | 74 mm | 91% | 3.3 m/s | 2.1 |
| 2010 | 6.6°C | 3.7°C | 0.8°C | 9.9°C | -5.0°C | 81 mm | 90% | 3.7 m/s | 2.2 |
| 2009 | 7.8°C | 4.9°C | 2.1°C | 11.8°C | -2.0°C | 52 mm | 89% | 4.7 m/s | 2.5 |
| 2008 | 6.2°C | 3.5°C | 0.8°C | 9.8°C | -2.3°C | 76 mm | 88% | 4.9 m/s | 2.3 |
| 2007 | 7.7°C | 5.0°C | 2.3°C | 10.3°C | -2.9°C | 64 mm | 90% | 4.8 m/s | 2.3 |
| 2006 🌧️ | 4.5°C | 2.3°C | 0.0°C | 11.9°C | -4.3°C | 150 mm | 91% | 3.9 m/s | 1.7 |
| 2005 | 7.7°C | 5.3°C | 2.9°C | 13.5°C | -2.4°C | 69 mm | 91% | 4.1 m/s | 1.8 |
| 2004 | 7.8°C | 4.9°C | 2.0°C | 12.8°C | -2.5°C | 49 mm | 90% | 3.9 m/s | 2.2 |
| 2003 | 8.9°C | 5.7°C | 2.4°C | 13.3°C | -0.7°C | 41 mm | 90% | 3.2 m/s | 2.5 |
| 2002 | 7.6°C | 4.7°C | 1.7°C | 11.5°C | -2.1°C | 57 mm | 90% | 4.2 m/s | 2.2 |
| 2001 | 4.9°C | 2.4°C | 0.0°C | 10.4°C | -7.0°C | 84 mm | 90% | 3.5 m/s | 2 |
| 2000 | 8.1°C | 5.2°C | 2.3°C | 11.4°C | -2.4°C | 52 mm | 90% | 4.3 m/s | 2.1 |
| 1999 | 7.5°C | 4.7°C | 2.0°C | 11.6°C | -1.6°C | 63 mm | 91% | 4.3 m/s | 2.1 |
| 1998 | 7.6°C | 4.8°C | 2.0°C | 12.5°C | -3.0°C | 87 mm | 91% | 3.9 m/s | 1.9 |
| 1997 | 8.7°C | 5.8°C | 2.9°C | 11.5°C | -1.7°C | 52 mm | 90% | 4.6 m/s | 2 |
| 1996 | 4.7°C | 2.4°C | 0.1°C | 9.5°C | -2.6°C | 80 mm | 90% | 3.9 m/s | 1.6 |
| 1995 | 5.2°C | 2.6°C | -0.1°C | 11.3°C | -2.8°C | 51 mm | 89% | 4.7 m/s | 1.9 |
| 1994 | 6.3°C | 3.8°C | 1.3°C | 9.3°C | -2.5°C | 72 mm | 89% | 6.4 m/s | 1.7 |
| 1993 | 7.1°C | 4.3°C | 1.5°C | 11.7°C | -3.3°C | 62 mm | 90% | 4.6 m/s | 1.7 |
| 1992 | 7.1°C | 4.6°C | 2.0°C | 11.2°C | -1.6°C | 114 mm | 89% | 5.1 m/s | 1.8 |
| 1991 | 7.8°C | 5.2°C | 2.5°C | 11.1°C | -1.3°C | 97 mm | 93% | 3.1 m/s | 1.6 |
| 1990 | 8.6°C | 5.9°C | 3.3°C | 13.0°C | -2.2°C | 50 mm | 89% | 6.4 m/s | 1.9 |
| 1989 | 7.1°C | 4.2°C | 1.3°C | 11.0°C | -2.8°C | 87 mm | 91% | 4.9 m/s | 1.7 |
| 1988 | 6.1°C | 3.4°C | 0.7°C | 9.9°C | -2.9°C | 88 mm | 89% | 3.9 m/s | 1.9 |
| 1987 | 4.5°C | 2.0°C | -0.6°C | 8.6°C | -3.5°C | 99 mm | 89% | 4.3 m/s | 2.1 |
| 1986 | 5.9°C | 3.1°C | 0.3°C | 9.6°C | -8.9°C | 62 mm | 90% | 4.8 m/s | 1.8 |
| 1985 | 5.3°C | 2.7°C | 0.1°C | 8.9°C | -2.4°C | 76 mm | 90% | 3.5 m/s | 1.5 |
| 1984 | 5.4°C | 2.9°C | 0.5°C | 9.7°C | -1.9°C | 109 mm | 89% | 3.4 m/s | 1.6 |
| 1983 | 7.0°C | 4.6°C | 2.1°C | 11.0°C | -1.5°C | 69 mm | 90% | 4.9 m/s | — |
| 1982 | 6.6°C | 3.8°C | 0.9°C | 11.9°C | -1.4°C | 73 mm | 90% | 4.6 m/s | — |
| 1981 | 6.9°C | 4.3°C | 1.7°C | 11.9°C | -2.9°C | 115 mm | 90% | 4 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 7°C with lows near 1.5°C (mean 4.3°C), based on 45 years of NASA POWER data.
March averages 73 mm of rainfall in Perth, about average for rainfall. The wettest on record was 150 mm in 2006.
The hottest March reached 17°C in 2012. The coldest dipped to -8.9°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.6°C. Daytime highs moved from 6.2°C to 8.2°C and overnight lows from 1.1°C to 2.3°C over the same span.
March is one of the cooler months of the year in Perth and about average for rainfall, so plan for around 7°C daytime highs and 1.5°C at night.
Not quite — March is the 4th coolest month in Perth, averaging 4.3°C.
For March in Perth, pack warm layers and a jacket for chilly mornings, with typical highs of 7°C and lows of 1.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 90% — quite humid.
Average wind speed in March is 4.2 m/s. The windiest March on record averaged 6.4 m/s (1990).
The wettest March on record was 2006 with 150 mm. On average, March sees 73 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.
