March is one of the warmer months of the year in Port Lincoln, with average highs near 24°C and lows around 16.3°C (mean 20.2°C). It is one of the drier months, averaging 19 mm of rainfall and 64% relative humidity across the period.
March is one of the warmer months of the year in Port Lincoln. Across 45 years of records, the warmest March in Port Lincoln was 2008 — when the month averaged 22.7°C — while the coldest was 1981 at 18.4°C. Typical March days reach 24°C with nights near 16.3°C. The long-term trend is warming, about 0.2°C per decade.
March is one of the drier months in Port Lincoln, averaging 19 mm of rainfall. The wettest March on record was 1983 with 57 mm, while the driest was 1994 at 1 mm.
Relative humidity in Port Lincoln during March averages 64%. The most humid Marchs were 1983 and 1992 at 73%, and the least humid was 2008 at 53%.
March receives about 5.3 kWh/m²/day of solar energy in Port Lincoln. The sunniest Marchs were 1994 and 2025 at 6 kWh/m²/day, and the cloudiest was 1989 at 4.7.
Average wind speed in Port Lincoln during March is 5 m/s. The windiest March was 2011 at 5.7 m/s, while the calmest was 1994 at 4.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.0°C | 19.7°C | 20.2°C | 20.3°C | 20.7°C | +0.7°C |
| Avg High | 24.0°C | 23.5°C | 24.2°C | 23.9°C | 24.5°C | +0.5°C |
| Avg Low | 16.0°C | 15.9°C | 16.2°C | 16.6°C | 16.9°C | +0.9°C |
| Avg Rain | 23 mm | 13 mm | 22 mm | 17 mm | 20 mm | -3 mm |
March temperatures in Port Lincoln have risen by about 1.3°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 12.1°C (1987) to a record high of 39.4°C (1986).
Rainfall in March is one of the drier months, averaging 19 mm, with a wettest year of 57 mm.
One of the best times to visit Port Lincoln
March is one of the best times to visit Port Lincoln. Expect days averaging 24°C and nights around 16.3°C (mean 20.2°C) — warmer than Port Lincoln's yearly average — with low rainfall (19 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 | 26.4°C | 22.2°C | 18.0°C | 35.3°C | 15.8°C | 16 mm | 63% | 5.5 m/s | 6 |
| 2024 | 25.4°C | 21.3°C | 17.2°C | 36.2°C | 13.0°C | 22 mm | 64% | 5 m/s | 5.6 |
| 2023 | 23.4°C | 20.0°C | 16.5°C | 34.7°C | 14.8°C | 5 mm | 68% | 4.9 m/s | 5.4 |
| 2022 | 24.8°C | 21.0°C | 17.2°C | 33.4°C | 14.5°C | 5 mm | 65% | 5.1 m/s | 5.4 |
| 2021 | 23.7°C | 20.0°C | 16.2°C | 28.8°C | 12.4°C | 15 mm | 66% | 4.6 m/s | 5.8 |
| 2020 | 23.2°C | 19.6°C | 16.0°C | 33.2°C | 13.6°C | 55 mm | 65% | 5.1 m/s | 5.1 |
| 2019 | 23.7°C | 20.1°C | 16.6°C | 38.1°C | 12.6°C | 1 mm | 64% | 4.8 m/s | 5.4 |
| 2018 | 24.1°C | 20.4°C | 16.7°C | 32.0°C | 13.5°C | 1 mm | 63% | 5.4 m/s | 5.6 |
| 2017 | 25.9°C | 21.7°C | 17.4°C | 35.8°C | 13.9°C | 1 mm | 65% | 5.5 m/s | 5.4 |
| 2016 | 24.2°C | 20.7°C | 17.3°C | 31.2°C | 13.5°C | 16 mm | 68% | 4.4 m/s | 4.9 |
| 2015 | 22.8°C | 19.2°C | 15.6°C | 31.4°C | 13.3°C | 5 mm | 64% | 4.7 m/s | 5.2 |
| 2014 | 23.8°C | 19.9°C | 16.0°C | 30.9°C | 14.6°C | 11 mm | 67% | 4.7 m/s | 5.3 |
| 2013 | 25.4°C | 21.6°C | 17.8°C | 34.7°C | 14.8°C | 35 mm | 62% | 5.1 m/s | 5.1 |
| 2012 | 23.5°C | 19.8°C | 16.1°C | 31.7°C | 14.1°C | 14 mm | 65% | 5 m/s | 5.2 |
| 2011 | 22.0°C | 18.8°C | 15.7°C | 31.5°C | 13.9°C | 38 mm | 71% | 5.7 m/s | 4.9 |
| 2010 | 24.1°C | 20.3°C | 16.5°C | 31.4°C | 13.7°C | 51 mm | 65% | 4.8 m/s | 5.3 |
| 2009 | 23.6°C | 19.9°C | 16.2°C | 30.9°C | 14.0°C | 31 mm | 66% | 4.9 m/s | 5.2 |
| 2008 🔥 | 27.6°C | 22.7°C | 17.9°C | 37.1°C | 14.4°C | 9 mm | 53% | 4.6 m/s | 5.7 |
| 2007 | 24.2°C | 20.3°C | 16.5°C | 33.6°C | 13.7°C | 34 mm | 64% | 5.5 m/s | 5.1 |
| 2006 | 25.1°C | 20.9°C | 16.6°C | 36.2°C | 13.9°C | 52 mm | 64% | 4.8 m/s | 5.4 |
| 2005 | 23.3°C | 19.6°C | 15.9°C | 34.3°C | 14.1°C | 13 mm | 65% | 5 m/s | 5.3 |
| 2004 | 23.9°C | 19.8°C | 15.7°C | 35.2°C | 13.7°C | 21 mm | 62% | 4.9 m/s | 5.5 |
| 2003 | 22.5°C | 18.8°C | 15.1°C | 31.0°C | 13.2°C | 3 mm | 66% | 4.6 m/s | 5.5 |
| 2002 | 23.6°C | 19.6°C | 15.5°C | 33.5°C | 14.0°C | 7 mm | 64% | 4.9 m/s | 5.7 |
| 2001 | 23.8°C | 19.8°C | 15.9°C | 34.4°C | 13.0°C | 34 mm | 63% | 5.3 m/s | 5.4 |
| 2000 | 24.2°C | 20.4°C | 16.6°C | 36.1°C | 13.2°C | 16 mm | 65% | 5.1 m/s | 4.9 |
| 1999 | 22.8°C | 19.4°C | 16.0°C | 32.9°C | 13.1°C | 38 mm | 68% | 5.5 m/s | 5.1 |
| 1998 | 24.8°C | 20.6°C | 16.4°C | 35.6°C | 14.0°C | 7 mm | 63% | 4.6 m/s | 5.5 |
| 1997 | 21.7°C | 18.5°C | 15.3°C | 28.1°C | 13.4°C | 6 mm | 64% | 5.3 m/s | 5.5 |
| 1996 | 24.7°C | 20.6°C | 16.4°C | 34.0°C | 12.5°C | 17 mm | 60% | 5.3 m/s | 5.5 |
| 1995 | 21.8°C | 18.5°C | 15.2°C | 29.8°C | 12.6°C | 17 mm | 69% | 4.7 m/s | 5.2 |
| 1994 | 25.2°C | 20.6°C | 16.0°C | 31.9°C | 13.3°C | 1 mm | 57% | 4.2 m/s | 6 |
| 1993 | 23.0°C | 19.3°C | 15.6°C | 31.0°C | 13.7°C | 11 mm | 68% | 4.8 m/s | 4.9 |
| 1992 | 23.2°C | 19.5°C | 15.9°C | 33.8°C | 13.1°C | 19 mm | 73% | 4.6 m/s | 5.1 |
| 1991 | 22.4°C | 18.8°C | 15.3°C | 31.9°C | 13.1°C | 12 mm | 63% | 5.1 m/s | 5.3 |
| 1990 | 25.3°C | 21.1°C | 16.8°C | 34.1°C | 13.8°C | 4 mm | 61% | 5.1 m/s | 5.6 |
| 1989 | 24.2°C | 20.6°C | 17.1°C | 35.5°C | 13.8°C | 19 mm | 65% | 5.4 m/s | 4.7 |
| 1988 | 25.8°C | 21.4°C | 16.9°C | 33.8°C | 13.2°C | 12 mm | 60% | 5.2 m/s | 5.2 |
| 1987 | 22.9°C | 18.8°C | 14.6°C | 34.8°C | 12.1°C | 5 mm | 61% | 5.1 m/s | 5.2 |
| 1986 | 26.1°C | 21.2°C | 16.3°C | 39.4°C | 14.0°C | 2 mm | 59% | 5.2 m/s | 5.3 |
| 1985 | 25.2°C | 20.7°C | 16.1°C | 33.4°C | 13.7°C | 16 mm | 63% | 4.8 m/s | 5.3 |
| 1984 | 23.3°C | 19.3°C | 15.3°C | 34.4°C | 12.6°C | 23 mm | 61% | 5.1 m/s | 5.2 |
| 1983 🌧️ | 22.0°C | 19.1°C | 16.2°C | 28.3°C | 12.9°C | 57 mm | 73% | 5 m/s | — |
| 1982 | 24.7°C | 20.6°C | 16.5°C | 35.1°C | 13.5°C | 38 mm | 63% | 5 m/s | — |
| 1981 ❄️ | 21.7°C | 18.4°C | 15.0°C | 29.4°C | 13.5°C | 32 mm | 65% | 4.8 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 16.3°C (mean 20.2°C), based on 45 years of NASA POWER data.
March averages 19 mm of rainfall in Port Lincoln, one of the drier months. The wettest on record was 57 mm in 1983.
The hottest March reached 39.4°C in 1986. The coldest dipped to 12.1°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.3°C. Daytime highs moved from 23.4°C to 24.7°C and overnight lows from 15.8°C to 17°C over the same span.
March is one of the warmer months of the year in Port Lincoln and one of the drier months, so plan for around 24°C daytime highs and 16.3°C at night.
Not quite — March is the 10th coolest month in Port Lincoln, averaging 20.2°C.
For March in Port Lincoln, pack light layers you can adjust through the day, with typical highs of 24°C and lows of 16.3°C.
Relative humidity in March averages 64% — moderately humid.
Average wind speed in March is 5 m/s. The windiest March on record averaged 5.7 m/s (2011).
The wettest March on record was 1983 with 57 mm. On average, March sees 19 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 Lincoln 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.
