March is one of the warmer months of the year in Port Denison, with average highs near 30.4°C and lows around 20.2°C (mean 25.3°C). It is one of the drier months, averaging 16 mm of rainfall and 56% relative humidity across the period.
March is one of the warmer months of the year in Port Denison. Across 45 years of records, the warmest March in Port Denison was 2025 — when the month averaged 27.2°C — while the coldest was 1993 at 23.3°C. Typical March days reach 30.4°C with nights near 20.2°C. The long-term trend is warming, about 0.2°C per decade.
March is one of the drier months in Port Denison, averaging 16 mm of rainfall. The wettest March on record was 1999 with 130 mm, while the driest were 1994, 2001 and 2012 at 1 mm.
Relative humidity in Port Denison during March averages 56%. The most humid March was 1992 at 68%, and the least humid was 2012 at 47%.
March receives about 6.2 kWh/m²/day of solar energy in Port Denison. The sunniest March was 2001 at 6.8 kWh/m²/day, and the cloudiest was 2005 at 5.1.
Average wind speed in Port Denison during March is 4.6 m/s. The windiest March was 1996 at 5.3 m/s, while the calmest was 2005 at 3.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.2°C | 24.8°C | 25.2°C | 25.5°C | 26.0°C | +0.8°C |
| Avg High | 30.3°C | 29.9°C | 30.3°C | 30.6°C | 31.1°C | +0.8°C |
| Avg Low | 19.9°C | 19.9°C | 20.1°C | 20.4°C | 21.0°C | +1.1°C |
| Avg Rain | 12 mm | 22 mm | 13 mm | 19 mm | 14 mm | +1 mm |
March temperatures in Port Denison have risen by about 1.2°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 12.7°C (2007) to a record high of 40.2°C (2007).
Rainfall in March is one of the drier months, averaging 16 mm, with a wettest year of 130 mm.
A good time to visit Port Denison
March is a good time to visit Port Denison, with days averaging 30.4°C and nights around 20.2°C (mean 25.3°C, warmer than Port Denison's yearly average) and low rainfall. November and April are marginally more temperate, but March still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🔥 | 32.6°C | 27.2°C | 21.8°C | 38.0°C | 19.0°C | 5 mm | 52% | 4.5 m/s | 6.4 |
| 2024 | 31.3°C | 26.1°C | 20.8°C | 35.5°C | 17.5°C | 12 mm | 53% | 4.8 m/s | 6.5 |
| 2023 | 30.6°C | 25.4°C | 20.3°C | 35.8°C | 17.9°C | 7 mm | 61% | 4.4 m/s | 6.2 |
| 2022 | 30.7°C | 25.9°C | 21.2°C | 36.3°C | 15.6°C | 38 mm | 56% | 4.5 m/s | 6.1 |
| 2021 | 31.2°C | 26.1°C | 21.0°C | 35.9°C | 16.2°C | 13 mm | 56% | 4.2 m/s | 6.5 |
| 2020 | 30.0°C | 25.4°C | 20.9°C | 35.9°C | 16.2°C | 6 mm | 58% | 4.2 m/s | 6 |
| 2019 | 30.5°C | 25.5°C | 20.6°C | 35.1°C | 16.4°C | 5 mm | 59% | 4.4 m/s | 5.5 |
| 2018 | 31.6°C | 26.4°C | 21.2°C | 37.0°C | 16.2°C | 6 mm | 56% | 5 m/s | 6.2 |
| 2017 | 29.5°C | 24.5°C | 19.4°C | 35.6°C | 14.5°C | 8 mm | 60% | 4.6 m/s | 6.3 |
| 2016 | 30.1°C | 25.2°C | 20.2°C | 35.3°C | 16.3°C | 24 mm | 62% | 4.5 m/s | 5.9 |
| 2015 | 29.3°C | 24.6°C | 19.9°C | 35.9°C | 14.7°C | 55 mm | 60% | 4.4 m/s | 5.9 |
| 2014 | 31.1°C | 25.8°C | 20.4°C | 37.2°C | 15.9°C | 6 mm | 56% | 4.3 m/s | 5.8 |
| 2013 | 29.0°C | 24.1°C | 19.1°C | 36.2°C | 13.9°C | 47 mm | 60% | 4.6 m/s | 6.2 |
| 2012 | 31.6°C | 26.2°C | 20.7°C | 38.8°C | 16.5°C | 1 mm | 47% | 5 m/s | 6.6 |
| 2011 | 32.2°C | 27.1°C | 22.0°C | 35.7°C | 19.1°C | 1 mm | 52% | 4.9 m/s | 6.7 |
| 2010 | 31.0°C | 25.8°C | 20.7°C | 37.3°C | 16.9°C | 34 mm | 56% | 4.8 m/s | 6.2 |
| 2009 | 29.6°C | 24.5°C | 19.4°C | 35.5°C | 14.8°C | 1 mm | 56% | 4.7 m/s | 6.4 |
| 2008 | 30.4°C | 25.4°C | 20.3°C | 34.5°C | 15.9°C | 13 mm | 59% | 4.9 m/s | 6 |
| 2007 | 30.9°C | 25.5°C | 20.1°C | 40.2°C | 12.7°C | 1 mm | 49% | 5.1 m/s | 6.6 |
| 2006 | 31.2°C | 26.0°C | 20.8°C | 36.4°C | 15.0°C | 4 mm | 50% | 4.9 m/s | 6.4 |
| 2005 | 30.7°C | 26.2°C | 21.7°C | 37.0°C | 16.2°C | 36 mm | 62% | 3.6 m/s | 5.1 |
| 2004 | 30.0°C | 24.2°C | 18.5°C | 38.6°C | 13.6°C | 1 mm | 52% | 5.2 m/s | 6.5 |
| 2003 | 30.7°C | 25.9°C | 21.0°C | 37.3°C | 16.2°C | 20 mm | 57% | 4.4 m/s | 6.4 |
| 2002 | 29.9°C | 24.8°C | 19.7°C | 36.2°C | 15.8°C | 4 mm | 57% | 4.5 m/s | 6.4 |
| 2001 | 30.2°C | 24.7°C | 19.2°C | 37.5°C | 13.0°C | 1 mm | 49% | 4.9 m/s | 6.8 |
| 2000 | 29.8°C | 25.1°C | 20.5°C | 35.9°C | 15.8°C | 49 mm | 60% | 5.2 m/s | 6.1 |
| 1999 🌧️ | 28.9°C | 24.2°C | 19.6°C | 35.3°C | 16.1°C | 130 mm | 65% | 5 m/s | 5.9 |
| 1998 | 31.5°C | 26.3°C | 21.1°C | 36.6°C | 15.6°C | 11 mm | 48% | 4.1 m/s | 6.3 |
| 1997 | 29.2°C | 24.2°C | 19.3°C | 35.2°C | 16.2°C | 3 mm | 58% | 5.1 m/s | 6.4 |
| 1996 | 29.7°C | 24.5°C | 19.4°C | 37.9°C | 15.4°C | 2 mm | 56% | 5.3 m/s | 6.2 |
| 1995 | 31.7°C | 26.2°C | 20.7°C | 36.5°C | 15.3°C | 21 mm | 53% | 4.2 m/s | 6.4 |
| 1994 | 31.5°C | 25.9°C | 20.4°C | 35.7°C | 15.1°C | 1 mm | 54% | 4 m/s | 6.4 |
| 1993 ❄️ | 28.0°C | 23.3°C | 18.6°C | 36.3°C | 15.2°C | 7 mm | 61% | 4.5 m/s | 5.9 |
| 1992 | 27.9°C | 23.7°C | 19.4°C | 33.2°C | 16.7°C | 30 mm | 68% | 4.5 m/s | 5.5 |
| 1991 | 29.6°C | 24.4°C | 19.3°C | 37.9°C | 12.9°C | 2 mm | 59% | 4.4 m/s | 6.2 |
| 1990 | 30.8°C | 25.8°C | 20.7°C | 36.8°C | 13.9°C | 10 mm | 59% | 4.8 m/s | 5.6 |
| 1989 | 31.1°C | 25.8°C | 20.5°C | 35.7°C | 17.4°C | 2 mm | 53% | 4.8 m/s | 6.4 |
| 1988 | 31.9°C | 26.8°C | 21.7°C | 37.3°C | 16.6°C | 14 mm | 51% | 4.7 m/s | 5.7 |
| 1987 | 29.8°C | 25.1°C | 20.3°C | 36.0°C | 14.4°C | 25 mm | 53% | 4.3 m/s | 5.6 |
| 1986 | 29.3°C | 24.0°C | 18.6°C | 37.1°C | 14.0°C | 6 mm | 58% | 4.7 m/s | 5.7 |
| 1985 | 31.3°C | 25.9°C | 20.6°C | 38.3°C | 15.6°C | 12 mm | 54% | 4.7 m/s | 6.5 |
| 1984 | 28.7°C | 23.4°C | 18.1°C | 36.8°C | 13.7°C | 36 mm | 58% | 5.2 m/s | 6 |
| 1983 | 31.8°C | 26.7°C | 21.5°C | 36.3°C | 17.4°C | 4 mm | 49% | 4.4 m/s | — |
| 1982 | 29.0°C | 23.8°C | 18.6°C | 35.1°C | 13.7°C | 9 mm | 52% | 5.1 m/s | — |
| 1981 | 30.2°C | 24.9°C | 19.6°C | 36.1°C | 15.7°C | 3 mm | 50% | 4.3 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 30.4°C with lows near 20.2°C (mean 25.3°C), based on 45 years of NASA POWER data.
March averages 16 mm of rainfall in Port Denison, one of the drier months. The wettest on record was 130 mm in 1999.
The hottest March reached 40.2°C in 2007. The coldest dipped to 12.7°C in 2007.
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 30.2°C to 31.3°C and overnight lows from 19.7°C to 21°C over the same span.
March is one of the warmer months of the year in Port Denison and one of the drier months, so plan for around 30.4°C daytime highs and 20.2°C at night.
Not quite — March is the 10th coolest month in Port Denison, averaging 25.3°C.
For March in Port Denison, pack light, breathable clothing and sun protection, with typical highs of 30.4°C and lows of 20.2°C.
Relative humidity in March averages 56% — moderately humid.
Average wind speed in March is 4.6 m/s. The windiest March on record averaged 5.3 m/s (1996).
The wettest March on record was 1999 with 130 mm. On average, March sees 16 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 Port Denison 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.
