March is one of the warmer months of the year in Sunbury, with average highs near 24.9°C and lows around 11.6°C (mean 18.3°C). It is one of the drier months, averaging 45 mm of rainfall and 65% relative humidity across the period.
March is one of the warmer months of the year in Sunbury. Across 45 years of records, the warmest March in Sunbury was 2017 — when the month averaged 21.1°C — while the coldest was 1987 at 15.4°C. Typical March days reach 24.9°C with nights near 11.6°C. The long-term trend is warming, about 0.2°C per decade.
March is one of the drier months in Sunbury, averaging 45 mm of rainfall. The wettest March on record was 2020 with 118 mm, while the driest was 2024 at 9 mm.
Relative humidity in Sunbury during March averages 65%. The most humid March was 2012 at 77%, and the least humid was 2008 at 55%.
March receives about 5 kWh/m²/day of solar energy in Sunbury. The sunniest March was 2006 at 5.7 kWh/m²/day, and the cloudiest was 1989 at 4.5.
Average wind speed in Sunbury during March is 2.3 m/s. The windiest Marchs were 1984, 2002 and 2007 at 2.6 m/s, while the calmest were 1989 and 1994 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.4°C | 17.6°C | 18.3°C | 18.6°C | 18.4°C | 0°C |
| Avg High | 25.2°C | 24.2°C | 25.2°C | 25.2°C | 24.8°C | -0.4°C |
| Avg Low | 11.6°C | 11.0°C | 11.4°C | 12.1°C | 12.0°C | +0.4°C |
| Avg Rain | 55 mm | 36 mm | 34 mm | 46 mm | 64 mm | +9 mm |
March temperatures in Sunbury have risen by about 0.5°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 4.5°C (1987) to a record high of 39.8°C (1991).
Rainfall in March is one of the drier months, averaging 45 mm, with a wettest year of 118 mm.
One of the best times to visit Sunbury
March is one of the best times to visit Sunbury. Expect days averaging 24.9°C and nights around 11.6°C (mean 18.3°C) — warmer than Sunbury's yearly average — with moderate rainfall (45 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 | 20.5°C | 13.5°C | 36.5°C | 8.7°C | 61 mm | 64% | 2.2 m/s | 5.2 |
| 2024 | 27.5°C | 19.9°C | 12.3°C | 37.5°C | 7.2°C | 9 mm | 58% | 2.3 m/s | 5.5 |
| 2023 | 24.4°C | 18.1°C | 11.8°C | 36.5°C | 8.6°C | 68 mm | 69% | 2.3 m/s | 4.6 |
| 2022 | 25.0°C | 19.0°C | 12.9°C | 31.6°C | 8.7°C | 69 mm | 73% | 2.2 m/s | 4.7 |
| 2021 | 22.8°C | 17.0°C | 11.1°C | 29.1°C | 7.2°C | 61 mm | 73% | 2 m/s | 4.6 |
| 2020 🌧️ | 21.6°C | 16.1°C | 10.7°C | 29.8°C | 6.9°C | 118 mm | 76% | 2.2 m/s | 4.8 |
| 2019 | 26.9°C | 19.8°C | 12.8°C | 37.4°C | 7.1°C | 29 mm | 58% | 2.3 m/s | 5.2 |
| 2018 | 26.0°C | 19.0°C | 12.0°C | 35.1°C | 7.1°C | 34 mm | 58% | 2.5 m/s | 5.5 |
| 2017 🔥 | 28.5°C | 21.1°C | 13.8°C | 33.7°C | 6.9°C | 37 mm | 62% | 2.1 m/s | 5.4 |
| 2016 | 26.5°C | 19.8°C | 13.0°C | 38.1°C | 6.6°C | 45 mm | 66% | 2.2 m/s | 4.8 |
| 2015 | 23.4°C | 16.8°C | 10.2°C | 31.7°C | 5.9°C | 18 mm | 65% | 2.4 m/s | 5.1 |
| 2014 | 25.7°C | 18.8°C | 11.9°C | 33.2°C | 7.7°C | 39 mm | 66% | 2.1 m/s | 4.7 |
| 2013 | 26.3°C | 19.6°C | 12.9°C | 34.7°C | 6.9°C | 42 mm | 63% | 2.2 m/s | 5.1 |
| 2012 | 21.2°C | 16.1°C | 11.0°C | 27.8°C | 7.8°C | 75 mm | 77% | 2.4 m/s | 4.7 |
| 2011 | 22.2°C | 16.4°C | 10.7°C | 30.0°C | 5.0°C | 46 mm | 75% | 2.2 m/s | 4.7 |
| 2010 | 25.0°C | 18.7°C | 12.3°C | 31.2°C | 8.0°C | 92 mm | 70% | 2 m/s | 4.9 |
| 2009 | 24.6°C | 17.9°C | 11.3°C | 32.3°C | 8.2°C | 43 mm | 66% | 2.2 m/s | 4.8 |
| 2008 | 27.5°C | 19.8°C | 12.1°C | 38.4°C | 4.8°C | 31 mm | 55% | 2.2 m/s | 5.3 |
| 2007 | 25.3°C | 18.7°C | 12.0°C | 36.3°C | 6.9°C | 53 mm | 63% | 2.6 m/s | 5.3 |
| 2006 | 26.7°C | 19.4°C | 12.0°C | 36.3°C | 9.1°C | 25 mm | 64% | 2.1 m/s | 5.7 |
| 2005 | 23.5°C | 16.7°C | 9.9°C | 33.9°C | 4.6°C | 12 mm | 67% | 2.2 m/s | 5.1 |
| 2004 | 24.8°C | 17.9°C | 11.0°C | 33.2°C | 8.1°C | 20 mm | 61% | 2.5 m/s | 5.5 |
| 2003 | 24.1°C | 17.7°C | 11.2°C | 31.8°C | 7.7°C | 30 mm | 68% | 2.5 m/s | 4.9 |
| 2002 | 24.9°C | 18.2°C | 11.4°C | 35.1°C | 6.9°C | 29 mm | 63% | 2.6 m/s | 4.9 |
| 2001 | 24.6°C | 17.9°C | 11.2°C | 33.1°C | 7.7°C | 78 mm | 64% | 2.4 m/s | 4.7 |
| 2000 | 26.1°C | 19.2°C | 12.3°C | 35.2°C | 7.4°C | 21 mm | 64% | 2.2 m/s | 4.9 |
| 1999 | 24.2°C | 17.9°C | 11.6°C | 31.8°C | 7.4°C | 66 mm | 69% | 2.3 m/s | 4.8 |
| 1998 | 25.9°C | 18.5°C | 11.1°C | 38.3°C | 6.0°C | 14 mm | 61% | 2.2 m/s | 5.1 |
| 1997 | 23.9°C | 17.2°C | 10.6°C | 30.6°C | 6.7°C | 19 mm | 63% | 2.4 m/s | 4.7 |
| 1996 | 24.0°C | 17.3°C | 10.5°C | 31.5°C | 4.5°C | 57 mm | 68% | 2.3 m/s | 5.1 |
| 1995 | 23.0°C | 16.7°C | 10.3°C | 32.5°C | 4.8°C | 46 mm | 66% | 2.2 m/s | 5.3 |
| 1994 | 22.5°C | 16.3°C | 10.2°C | 27.9°C | 5.6°C | 26 mm | 70% | 1.9 m/s | 5.3 |
| 1993 | 22.7°C | 16.9°C | 11.1°C | 28.9°C | 6.7°C | 48 mm | 74% | 2.1 m/s | 4.7 |
| 1992 | 25.3°C | 18.9°C | 12.4°C | 32.8°C | 6.1°C | 34 mm | 68% | 2.2 m/s | 4.8 |
| 1991 | 24.9°C | 17.6°C | 10.4°C | 39.8°C | 6.3°C | 31 mm | 60% | 2.3 m/s | 5.1 |
| 1990 | 25.5°C | 18.6°C | 11.6°C | 33.4°C | 6.0°C | 25 mm | 64% | 2.2 m/s | 5.4 |
| 1989 | 25.1°C | 19.0°C | 13.0°C | 37.8°C | 6.6°C | 109 mm | 69% | 1.9 m/s | 4.5 |
| 1988 | 26.2°C | 19.1°C | 12.0°C | 35.2°C | 8.1°C | 35 mm | 61% | 2.2 m/s | 5 |
| 1987 ❄️ | 22.1°C | 15.4°C | 8.7°C | 31.1°C | 4.5°C | 35 mm | 67% | 2.4 m/s | 5 |
| 1986 | 27.7°C | 19.7°C | 11.8°C | 38.2°C | 6.9°C | 9 mm | 56% | 2.4 m/s | 5.4 |
| 1985 | 27.1°C | 20.2°C | 13.3°C | 36.1°C | 8.0°C | 40 mm | 62% | 2.2 m/s | 4.7 |
| 1984 | 23.0°C | 16.4°C | 9.7°C | 33.5°C | 4.7°C | 74 mm | 64% | 2.6 m/s | 4.8 |
| 1983 | 26.3°C | 19.8°C | 13.3°C | 36.8°C | 6.2°C | 66 mm | 64% | 2.2 m/s | — |
| 1982 | 25.5°C | 18.6°C | 11.8°C | 34.7°C | 7.4°C | 61 mm | 64% | 2.1 m/s | — |
| 1981 | 23.9°C | 17.1°C | 10.4°C | 33.5°C | 5.8°C | 65 mm | 64% | 2.1 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 24.9°C with lows near 11.6°C (mean 18.3°C), based on 45 years of NASA POWER data.
March averages 45 mm of rainfall in Sunbury, one of the drier months. The wettest on record was 118 mm in 2020.
The hottest March reached 39.8°C in 1991. The coldest dipped to 4.5°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 0.5°C. Daytime highs moved from 25.2°C to 25.5°C and overnight lows from 11.7°C to 12.3°C over the same span.
March is one of the warmer months of the year in Sunbury and one of the drier months, so plan for around 24.9°C daytime highs and 11.6°C at night.
Not quite — March is the 10th coolest month in Sunbury, averaging 18.3°C.
For March in Sunbury, pack light layers you can adjust through the day, with typical highs of 24.9°C and lows of 11.6°C.
Relative humidity in March averages 65% — moderately humid.
Average wind speed in March is 2.3 m/s. The windiest March on record averaged 2.6 m/s (1984).
The wettest March on record was 2020 with 118 mm. On average, March sees 45 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 Sunbury 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.
