March is one of the warmer months of the year in Sydney, with average highs near 24°C and lows around 19.6°C (mean 21.8°C). It is a relatively wet time of year, averaging 110 mm of rainfall and 75% relative humidity across the period.
March is one of the warmer months of the year in Sydney. Across 45 years of records, the warmest March in Sydney was 2025 — when the month averaged 23.6°C — while the coldest was 1984 at 19.6°C. Typical March days reach 24°C with nights near 19.6°C. The long-term trend is warming, about 0.3°C per decade.
March is a relatively wet time of year in Sydney, averaging 110 mm of rainfall. The wettest March on record was 2022 with 423 mm, while the driest was 1991 at 18 mm.
Relative humidity in Sydney during March averages 75%. The most humid March was 2000 at 83%, and the least humid was 1981 at 69%.
March receives about 4.8 kWh/m²/day of solar energy in Sydney. The sunniest March was 2008 at 5.6 kWh/m²/day, and the cloudiest was 2022 at 3.9.
Average wind speed in Sydney during March is 3.2 m/s. The windiest Marchs were 2005 and 2017 at 3.8 m/s, while the calmest were 1985 and 2008 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.4°C | 21.4°C | 21.8°C | 22.3°C | 22.4°C | +1°C |
| Avg High | 23.7°C | 23.5°C | 24.0°C | 24.5°C | 24.4°C | +0.7°C |
| Avg Low | 19.1°C | 19.2°C | 19.6°C | 20.2°C | 20.4°C | +1.3°C |
| Avg Rain | 110 mm | 72 mm | 92 mm | 120 mm | 185 mm | +75 mm |
March temperatures in Sydney have risen by about 1.2°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 13.5°C (1984) to a record high of 34.8°C (1983).
Rainfall in March is a relatively wet time of year, averaging 110 mm, with a wettest year of 423 mm.
One of the best times to visit Sydney
March is one of the best times to visit Sydney. Expect days averaging 24°C and nights around 19.6°C (mean 21.8°C) — warmer than Sydney's yearly average — with higher rainfall (110 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 🔥 | 25.7°C | 23.6°C | 21.6°C | 31.7°C | 19.1°C | 112 mm | 77% | 3.3 m/s | 4.3 |
| 2024 | 25.6°C | 23.1°C | 20.6°C | 30.9°C | 18.0°C | 34 mm | 74% | 2.9 m/s | 5 |
| 2023 | 26.1°C | 23.5°C | 20.9°C | 32.7°C | 16.7°C | 67 mm | 71% | 2.9 m/s | 5 |
| 2022 🌧️ | 22.8°C | 21.6°C | 20.5°C | 25.0°C | 18.3°C | 423 mm | 82% | 3.5 m/s | 3.9 |
| 2021 | 23.4°C | 21.5°C | 19.6°C | 28.9°C | 17.4°C | 295 mm | 76% | 3.7 m/s | 4.2 |
| 2020 | 22.8°C | 21.0°C | 19.2°C | 29.1°C | 17.5°C | 176 mm | 78% | 3.2 m/s | 4.5 |
| 2019 | 25.2°C | 22.8°C | 20.5°C | 31.5°C | 13.5°C | 149 mm | 75% | 3.2 m/s | 4.7 |
| 2018 | 25.2°C | 22.8°C | 20.4°C | 32.6°C | 16.6°C | 59 mm | 73% | 3.3 m/s | 5 |
| 2017 | 23.8°C | 22.3°C | 20.9°C | 27.4°C | 18.1°C | 273 mm | 82% | 3.8 m/s | 4 |
| 2016 | 25.5°C | 23.2°C | 20.9°C | 28.8°C | 17.7°C | 61 mm | 75% | 3.2 m/s | 5.1 |
| 2015 | 24.9°C | 22.2°C | 19.6°C | 33.0°C | 15.8°C | 51 mm | 71% | 3.1 m/s | 5 |
| 2014 | 24.6°C | 22.4°C | 20.3°C | 27.1°C | 17.7°C | 162 mm | 79% | 2.8 m/s | 4.6 |
| 2013 | 24.3°C | 22.2°C | 20.2°C | 28.7°C | 17.1°C | 50 mm | 75% | 3.3 m/s | 5 |
| 2012 | 22.4°C | 20.6°C | 18.8°C | 26.6°C | 14.9°C | 175 mm | 80% | 3.2 m/s | 4.6 |
| 2011 | 24.3°C | 22.2°C | 20.0°C | 29.8°C | 18.3°C | 147 mm | 76% | 3.2 m/s | 4.5 |
| 2010 | 24.9°C | 22.6°C | 20.4°C | 31.4°C | 18.6°C | 77 mm | 73% | 3.1 m/s | 4.6 |
| 2009 | 24.7°C | 22.3°C | 19.9°C | 29.1°C | 17.4°C | 89 mm | 72% | 3 m/s | 5.2 |
| 2008 | 23.6°C | 21.2°C | 18.8°C | 27.2°C | 14.9°C | 52 mm | 75% | 2.7 m/s | 5.6 |
| 2007 | 24.5°C | 22.0°C | 19.5°C | 30.1°C | 16.4°C | 87 mm | 76% | 3.1 m/s | 4.9 |
| 2006 | 25.0°C | 22.8°C | 20.5°C | 31.3°C | 18.1°C | 36 mm | 74% | 3 m/s | 4.8 |
| 2005 | 23.0°C | 21.0°C | 19.0°C | 26.7°C | 15.4°C | 84 mm | 73% | 3.8 m/s | 4.8 |
| 2004 | 24.2°C | 22.0°C | 19.7°C | 32.1°C | 18.1°C | 55 mm | 73% | 3 m/s | 4.9 |
| 2003 | 23.3°C | 21.3°C | 19.2°C | 27.1°C | 15.7°C | 94 mm | 73% | 2.9 m/s | 5 |
| 2002 | 24.1°C | 21.9°C | 19.7°C | 31.0°C | 17.4°C | 105 mm | 73% | 3 m/s | 4.9 |
| 2001 | 23.9°C | 21.9°C | 19.8°C | 26.7°C | 16.7°C | 108 mm | 73% | 3.4 m/s | 4.5 |
| 2000 | 23.9°C | 22.0°C | 20.1°C | 28.8°C | 17.4°C | 209 mm | 83% | 3.2 m/s | 4 |
| 1999 | 25.0°C | 22.7°C | 20.4°C | 28.5°C | 15.8°C | 60 mm | 75% | 3.1 m/s | 4.5 |
| 1998 | 25.7°C | 23.0°C | 20.3°C | 32.5°C | 17.7°C | 23 mm | 72% | 3.2 m/s | 5.2 |
| 1997 | 24.1°C | 21.8°C | 19.5°C | 28.9°C | 15.9°C | 48 mm | 74% | 3.2 m/s | 5.1 |
| 1996 | 23.3°C | 21.0°C | 18.6°C | 28.1°C | 16.0°C | 36 mm | 73% | 3.1 m/s | 5 |
| 1995 | 22.6°C | 20.4°C | 18.1°C | 28.0°C | 15.0°C | 140 mm | 75% | 3.6 m/s | 4.7 |
| 1994 | 21.7°C | 20.0°C | 18.2°C | 25.7°C | 13.6°C | 114 mm | 75% | 3.3 m/s | 4.7 |
| 1993 | 22.7°C | 20.6°C | 18.5°C | 25.6°C | 16.6°C | 106 mm | 75% | 3.1 m/s | 4.9 |
| 1992 | 22.9°C | 21.2°C | 19.4°C | 25.1°C | 17.7°C | 69 mm | 81% | 2.9 m/s | 4.8 |
| 1991 | 24.2°C | 21.5°C | 18.9°C | 28.2°C | 16.5°C | 18 mm | 72% | 3.2 m/s | 5.4 |
| 1990 | 23.1°C | 21.4°C | 19.7°C | 26.8°C | 17.2°C | 108 mm | 78% | 3.3 m/s | 4.5 |
| 1989 | 23.9°C | 21.9°C | 19.9°C | 31.0°C | 17.1°C | 183 mm | 79% | 3 m/s | 4.1 |
| 1988 | 23.8°C | 21.5°C | 19.3°C | 32.1°C | 15.7°C | 66 mm | 70% | 3.1 m/s | 4.9 |
| 1987 | 22.3°C | 20.1°C | 17.9°C | 27.5°C | 14.6°C | 149 mm | 73% | 3.2 m/s | 4.9 |
| 1986 | 24.5°C | 21.8°C | 19.2°C | 31.8°C | 15.5°C | 21 mm | 72% | 3.2 m/s | 5.1 |
| 1985 | 24.0°C | 21.6°C | 19.1°C | 31.7°C | 16.8°C | 81 mm | 76% | 2.7 m/s | 5 |
| 1984 ❄️ | 22.0°C | 19.6°C | 17.2°C | 27.1°C | 13.5°C | 125 mm | 72% | 3.3 m/s | 4.8 |
| 1983 | 25.1°C | 22.6°C | 20.1°C | 34.8°C | 15.4°C | 204 mm | 76% | 3 m/s | — |
| 1982 | 23.9°C | 21.8°C | 19.7°C | 29.3°C | 17.2°C | 136 mm | 78% | 3.1 m/s | — |
| 1981 | 24.2°C | 21.7°C | 19.1°C | 30.4°C | 15.5°C | 22 mm | 69% | 2.9 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 24°C with lows near 19.6°C (mean 21.8°C), based on 45 years of NASA POWER data.
March averages 110 mm of rainfall in Sydney, a relatively wet time of year. The wettest on record was 423 mm in 2022.
The hottest March reached 34.8°C in 1983. The coldest dipped to 13.5°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.2°C. Daytime highs moved from 23.8°C to 24.7°C and overnight lows from 19°C to 20.6°C over the same span.
March is one of the warmer months of the year in Sydney and a relatively wet time of year, so plan for around 24°C daytime highs and 19.6°C at night.
Not quite — March is the 10th coolest month in Sydney, averaging 21.8°C.
For March in Sydney, pack light layers you can adjust through the day, with typical highs of 24°C and lows of 19.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 75% — quite humid.
Average wind speed in March is 3.2 m/s. The windiest March on record averaged 3.8 m/s (2005).
The wettest March on record was 2022 with 423 mm. On average, March sees 110 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 Sydney 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.
