March is one of the warmer months of the year in Port Augusta, with average highs near 30.5°C and lows around 16.6°C (mean 23.6°C). It is about average for rainfall, averaging 15 mm of rainfall and 46% relative humidity across the period.
March is one of the warmer months of the year in Port Augusta. Across 45 years of records, the warmest March in Port Augusta was 2025 — when the month averaged 27.2°C — while the coldest was 1987 at 20.6°C. Typical March days reach 30.5°C with nights near 16.6°C. The long-term trend is warming, about 0.5°C per decade.
March is about average for rainfall in Port Augusta, averaging 15 mm of rainfall. The wettest March on record was 1989 with 111 mm, while the driest were 2017, 2018 and 2019, among others at 0 mm.
Relative humidity in Port Augusta during March averages 46%. The most humid March was 2011 at 61%, and the least humid was 2008 at 32%.
March receives about 6.1 kWh/m²/day of solar energy in Port Augusta. The sunniest March was 1994 at 6.8 kWh/m²/day, and the cloudiest was 2011 at 5.2.
Average wind speed in Port Augusta during March is 3.5 m/s. The windiest March was 1997 at 4.1 m/s, while the calmest was 2016 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.1°C | 23.0°C | 23.4°C | 24.0°C | 24.8°C | +1.7°C |
| Avg High | 30.1°C | 30.1°C | 30.5°C | 30.8°C | 31.6°C | +1.5°C |
| Avg Low | 16.1°C | 16.0°C | 16.3°C | 17.2°C | 18.1°C | +2°C |
| Avg Rain | 27 mm | 9 mm | 13 mm | 14 mm | 15 mm | -12 mm |
March temperatures in Port Augusta have risen by about 2.3°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 9.2°C (1987) to a record high of 42.9°C (1986).
Rainfall in March is about average for rainfall, averaging 15 mm, with a wettest year of 111 mm.
One of the best times to visit Port Augusta
March is one of the best times to visit Port Augusta. Expect days averaging 30.5°C and nights around 16.6°C (mean 23.6°C) — warmer than Port Augusta's yearly average — with low rainfall (15 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 🔥 | 34.3°C | 27.2°C | 20.1°C | 42.3°C | 12.9°C | 16 mm | 43% | 3.7 m/s | 6 |
| 2024 | 34.0°C | 27.1°C | 20.2°C | 40.5°C | 12.1°C | 15 mm | 39% | 3.4 m/s | 6 |
| 2023 | 31.3°C | 24.2°C | 17.2°C | 39.6°C | 13.7°C | 6 mm | 48% | 3.4 m/s | 5.8 |
| 2022 | 31.0°C | 24.4°C | 17.9°C | 37.4°C | 13.4°C | 16 mm | 47% | 3.5 m/s | 6.2 |
| 2021 | 29.6°C | 23.1°C | 16.5°C | 36.9°C | 11.4°C | 18 mm | 49% | 3.1 m/s | 5.8 |
| 2020 | 29.4°C | 22.9°C | 16.4°C | 37.1°C | 12.0°C | 21 mm | 47% | 3.4 m/s | 5.9 |
| 2019 | 32.1°C | 25.1°C | 18.1°C | 41.5°C | 12.4°C | 0 mm | 42% | 3.4 m/s | 6.1 |
| 2018 | 31.5°C | 24.4°C | 17.3°C | 40.0°C | 13.2°C | 0 mm | 43% | 3.9 m/s | 6.4 |
| 2017 | 33.4°C | 26.1°C | 18.9°C | 41.2°C | 11.1°C | 0 mm | 41% | 3.6 m/s | 6.5 |
| 2016 | 32.8°C | 26.1°C | 19.4°C | 40.8°C | 12.1°C | 15 mm | 44% | 2.9 m/s | 5.5 |
| 2015 | 29.3°C | 22.5°C | 15.7°C | 35.6°C | 10.5°C | 2 mm | 46% | 3.6 m/s | 6.2 |
| 2014 | 30.4°C | 23.6°C | 16.8°C | 37.6°C | 12.4°C | 3 mm | 50% | 3.3 m/s | 6.2 |
| 2013 | 30.4°C | 23.9°C | 17.4°C | 38.3°C | 12.2°C | 14 mm | 46% | 3.5 m/s | 5.8 |
| 2012 | 28.6°C | 22.0°C | 15.4°C | 34.1°C | 11.3°C | 31 mm | 55% | 3.4 m/s | 6 |
| 2011 | 27.9°C | 22.0°C | 16.1°C | 34.8°C | 10.7°C | 57 mm | 61% | 3.7 m/s | 5.2 |
| 2010 | 31.1°C | 24.2°C | 17.3°C | 36.0°C | 11.9°C | 19 mm | 43% | 3.3 m/s | 6 |
| 2009 | 30.4°C | 23.5°C | 16.6°C | 37.9°C | 12.7°C | 18 mm | 46% | 3.4 m/s | 5.7 |
| 2008 | 32.9°C | 25.6°C | 18.3°C | 40.7°C | 9.9°C | 3 mm | 32% | 3 m/s | 6.4 |
| 2007 | 30.0°C | 23.4°C | 16.8°C | 41.0°C | 9.5°C | 48 mm | 49% | 3.7 m/s | 5.6 |
| 2006 | 31.0°C | 24.1°C | 17.2°C | 39.8°C | 13.3°C | 19 mm | 47% | 3.6 m/s | 6.2 |
| 2005 | 30.9°C | 23.2°C | 15.5°C | 39.8°C | 10.6°C | 3 mm | 41% | 3.5 m/s | 6.2 |
| 2004 | 31.5°C | 23.5°C | 15.5°C | 40.1°C | 10.8°C | 3 mm | 40% | 3.7 m/s | 6.4 |
| 2003 | 27.9°C | 21.0°C | 14.1°C | 35.6°C | 10.6°C | 2 mm | 49% | 3.3 m/s | 6.3 |
| 2002 | 30.2°C | 22.9°C | 15.5°C | 37.8°C | 11.7°C | 2 mm | 44% | 3.8 m/s | 6.5 |
| 2001 | 30.0°C | 22.7°C | 15.4°C | 38.2°C | 9.8°C | 10 mm | 42% | 3.6 m/s | 6.2 |
| 2000 | 30.5°C | 24.1°C | 17.6°C | 41.1°C | 10.4°C | 18 mm | 47% | 3.5 m/s | 5.6 |
| 1999 | 30.6°C | 24.1°C | 17.7°C | 41.6°C | 9.3°C | 21 mm | 47% | 3.7 m/s | 5.7 |
| 1998 | 30.5°C | 23.5°C | 16.5°C | 39.8°C | 12.1°C | 13 mm | 45% | 3.5 m/s | 6.2 |
| 1997 | 27.3°C | 20.7°C | 14.1°C | 33.3°C | 10.7°C | 1 mm | 52% | 4.1 m/s | 6.6 |
| 1996 | 31.2°C | 24.0°C | 16.8°C | 38.5°C | 11.8°C | 7 mm | 40% | 3.3 m/s | 6.3 |
| 1995 | 28.3°C | 21.4°C | 14.4°C | 37.4°C | 10.3°C | 18 mm | 52% | 3.9 m/s | 6.5 |
| 1994 | 30.1°C | 22.6°C | 15.1°C | 34.9°C | 10.4°C | 0 mm | 41% | 3.2 m/s | 6.8 |
| 1993 | 30.0°C | 23.0°C | 16.0°C | 38.1°C | 10.4°C | 6 mm | 47% | 3.2 m/s | 5.9 |
| 1992 | 30.4°C | 23.2°C | 16.0°C | 37.4°C | 11.1°C | 13 mm | 55% | 3.4 m/s | 6.1 |
| 1991 | 30.0°C | 22.6°C | 15.3°C | 42.8°C | 11.1°C | 7 mm | 43% | 3.7 m/s | 6.4 |
| 1990 | 32.2°C | 24.9°C | 17.6°C | 41.2°C | 11.9°C | 5 mm | 40% | 3.9 m/s | 6.5 |
| 1989 🌧️ | 28.9°C | 22.9°C | 16.9°C | 40.7°C | 10.0°C | 111 mm | 55% | 3.5 m/s | 5.5 |
| 1988 | 31.3°C | 24.2°C | 17.1°C | 40.2°C | 11.0°C | 23 mm | 41% | 3.7 m/s | 6 |
| 1987 ❄️ | 27.7°C | 20.6°C | 13.6°C | 36.6°C | 9.2°C | 2 mm | 49% | 3.6 m/s | 6.3 |
| 1986 | 33.3°C | 25.3°C | 17.3°C | 42.9°C | 12.2°C | 1 mm | 38% | 3.9 m/s | 6.7 |
| 1985 | 31.6°C | 24.2°C | 16.9°C | 37.7°C | 12.0°C | 22 mm | 44% | 3.8 m/s | 6.3 |
| 1984 | 29.6°C | 22.2°C | 14.8°C | 38.5°C | 9.4°C | 2 mm | 41% | 3.7 m/s | 6.1 |
| 1983 | 30.5°C | 23.9°C | 17.3°C | 39.9°C | 11.8°C | 36 mm | 51% | 3.5 m/s | — |
| 1982 | 30.3°C | 23.3°C | 16.3°C | 40.6°C | 10.9°C | 36 mm | 47% | 3.6 m/s | — |
| 1981 | 27.6°C | 21.0°C | 14.5°C | 35.6°C | 11.5°C | 10 mm | 48% | 3.4 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 30.5°C with lows near 16.6°C (mean 23.6°C), based on 45 years of NASA POWER data.
March averages 15 mm of rainfall in Port Augusta, about average for rainfall. The wettest on record was 111 mm in 1989.
The hottest March reached 42.9°C in 1986. The coldest dipped to 9.2°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 2.3°C. Daytime highs moved from 29.9°C to 32°C and overnight lows from 16°C to 18.4°C over the same span.
March is one of the warmer months of the year in Port Augusta and about average for rainfall, so plan for around 30.5°C daytime highs and 16.6°C at night.
Not quite — March is the 9th coolest month in Port Augusta, averaging 23.6°C.
For March in Port Augusta, pack light, breathable clothing and sun protection, with typical highs of 30.5°C and lows of 16.6°C.
Relative humidity in March averages 46% — relatively dry.
Average wind speed in March is 3.5 m/s. The windiest March on record averaged 4.1 m/s (1997).
The wettest March on record was 1989 with 111 mm. On average, March sees 15 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 Augusta 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.
