March is one of the warmer months of the year in Mount Gambier, with average highs near 21°C and lows around 13.8°C (mean 17.4°C). It is one of the drier months, averaging 39 mm of rainfall and 72% relative humidity across the period.
March is one of the warmer months of the year in Mount Gambier. Across 45 years of records, the warmest March in Mount Gambier was 2013 — when the month averaged 19.7°C — while the coldest was 1987 at 15.8°C. Typical March days reach 21°C with nights near 13.8°C. The long-term March temperature trend is broadly flat.
March is one of the drier months in Mount Gambier, averaging 39 mm of rainfall. The wettest March on record was 1983 with 155 mm, while the driest was 1994 at 4 mm.
Relative humidity in Mount Gambier during March averages 72%. The most humid March was 2023 at 78%, and the least humid was 1986 at 67%.
March receives about 5 kWh/m²/day of solar energy in Mount Gambier. The sunniest Marchs were 2024 and 2025 at 5.5 kWh/m²/day, and the cloudiest was 2023 at 4.5.
Average wind speed in Mount Gambier during March is 3.6 m/s. The windiest March was 1987 at 4.2 m/s, while the calmest was 1994 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.4°C | 17.1°C | 17.3°C | 17.7°C | 17.6°C | +0.2°C |
| Avg High | 21.1°C | 20.6°C | 20.9°C | 21.2°C | 21.0°C | -0.1°C |
| Avg Low | 13.6°C | 13.5°C | 13.6°C | 14.2°C | 14.1°C | +0.5°C |
| Avg Rain | 52 mm | 28 mm | 36 mm | 35 mm | 46 mm | -6 mm |
March temperatures in Mount Gambier have risen by about 0.4°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 8.8°C (1987) to a record high of 34.8°C (1986).
Rainfall in March is one of the drier months, averaging 39 mm, with a wettest year of 155 mm.
One of the best times to visit Mount Gambier
March is one of the best times to visit Mount Gambier. Expect days averaging 21°C and nights around 13.8°C (mean 17.4°C) — warmer than Mount Gambier's yearly average — with moderate rainfall (39 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 | 23.2°C | 19.1°C | 15.0°C | 33.3°C | 11.8°C | 19 mm | 69% | 3.5 m/s | 5.5 |
| 2024 | 22.4°C | 18.4°C | 14.4°C | 33.0°C | 11.9°C | 8 mm | 69% | 3.4 m/s | 5.5 |
| 2023 | 19.2°C | 16.4°C | 13.6°C | 24.2°C | 11.4°C | 69 mm | 78% | 3.7 m/s | 4.5 |
| 2022 | 21.2°C | 17.8°C | 14.4°C | 29.4°C | 11.7°C | 51 mm | 76% | 3.3 m/s | 5 |
| 2021 | 20.2°C | 17.0°C | 13.7°C | 25.6°C | 10.9°C | 54 mm | 78% | 3.3 m/s | 5 |
| 2020 | 19.9°C | 16.6°C | 13.3°C | 27.1°C | 10.6°C | 76 mm | 74% | 3.6 m/s | 4.8 |
| 2019 | 20.8°C | 17.4°C | 14.0°C | 34.0°C | 11.4°C | 22 mm | 73% | 3.7 m/s | 5 |
| 2018 | 21.8°C | 18.3°C | 14.7°C | 31.0°C | 12.0°C | 21 mm | 68% | 4 m/s | 5.1 |
| 2017 | 23.0°C | 19.1°C | 15.2°C | 33.4°C | 11.1°C | 21 mm | 73% | 3.8 m/s | 5.1 |
| 2016 | 21.4°C | 17.9°C | 14.4°C | 32.3°C | 11.5°C | 29 mm | 75% | 3.5 m/s | 4.7 |
| 2015 | 19.1°C | 16.0°C | 13.0°C | 24.7°C | 10.4°C | 44 mm | 72% | 3.9 m/s | 5 |
| 2014 | 20.8°C | 17.3°C | 13.8°C | 30.2°C | 11.4°C | 44 mm | 72% | 3.3 m/s | 5 |
| 2013 🔥 | 23.5°C | 19.7°C | 15.8°C | 33.0°C | 12.5°C | 31 mm | 67% | 3.9 m/s | 4.7 |
| 2012 | 21.0°C | 17.4°C | 13.9°C | 28.2°C | 10.9°C | 55 mm | 70% | 3.7 m/s | 5.1 |
| 2011 | 19.0°C | 16.1°C | 13.2°C | 28.3°C | 10.4°C | 53 mm | 77% | 3.7 m/s | 4.7 |
| 2010 | 21.6°C | 17.9°C | 14.2°C | 28.3°C | 11.5°C | 28 mm | 73% | 3.1 m/s | 5 |
| 2009 | 20.2°C | 16.8°C | 13.3°C | 27.4°C | 9.8°C | 47 mm | 74% | 3.6 m/s | 5.1 |
| 2008 | 22.9°C | 18.5°C | 14.1°C | 33.2°C | 10.9°C | 29 mm | 67% | 3.5 m/s | 5.3 |
| 2007 | 21.5°C | 17.7°C | 13.8°C | 29.6°C | 9.7°C | 28 mm | 70% | 3.8 m/s | 5.4 |
| 2006 | 22.5°C | 18.4°C | 14.4°C | 31.5°C | 12.1°C | 17 mm | 71% | 3.3 m/s | 5.4 |
| 2005 | 19.8°C | 16.5°C | 13.2°C | 29.5°C | 9.9°C | 18 mm | 74% | 3.4 m/s | 4.8 |
| 2004 | 20.1°C | 16.5°C | 12.9°C | 31.0°C | 10.5°C | 51 mm | 71% | 3.4 m/s | 5 |
| 2003 | 19.4°C | 16.3°C | 13.2°C | 28.6°C | 10.8°C | 42 mm | 77% | 3.6 m/s | 4.8 |
| 2002 | 20.5°C | 16.9°C | 13.3°C | 29.0°C | 10.4°C | 17 mm | 75% | 3.5 m/s | 4.9 |
| 2001 | 21.0°C | 17.5°C | 13.9°C | 31.7°C | 11.9°C | 78 mm | 70% | 3.7 m/s | 4.7 |
| 2000 | 21.6°C | 17.9°C | 14.1°C | 31.5°C | 11.4°C | 36 mm | 71% | 3.6 m/s | 5 |
| 1999 | 20.0°C | 16.7°C | 13.4°C | 29.0°C | 10.5°C | 43 mm | 73% | 3.6 m/s | 4.8 |
| 1998 | 21.0°C | 17.3°C | 13.7°C | 33.7°C | 10.7°C | 19 mm | 73% | 3.6 m/s | 5.2 |
| 1997 | 19.1°C | 16.2°C | 13.3°C | 26.1°C | 10.7°C | 33 mm | 75% | 4 m/s | 4.9 |
| 1996 | 21.1°C | 17.2°C | 13.2°C | 30.5°C | 9.8°C | 29 mm | 71% | 3.7 m/s | 5.1 |
| 1995 | 19.6°C | 16.7°C | 13.7°C | 29.9°C | 10.5°C | 29 mm | 72% | 3.9 m/s | 5 |
| 1994 | 21.6°C | 17.4°C | 13.3°C | 29.1°C | 10.0°C | 4 mm | 67% | 3 m/s | 5.4 |
| 1993 | 20.6°C | 17.1°C | 13.7°C | 28.7°C | 11.5°C | 11 mm | 75% | 3.5 m/s | 5 |
| 1992 | 21.0°C | 17.5°C | 14.1°C | 30.8°C | 10.7°C | 42 mm | 78% | 3.1 m/s | 4.9 |
| 1991 | 19.8°C | 16.3°C | 12.8°C | 27.7°C | 10.4°C | 45 mm | 71% | 3.7 m/s | 5.3 |
| 1990 | 22.3°C | 18.2°C | 14.2°C | 31.2°C | 11.2°C | 22 mm | 68% | 3.4 m/s | 5.3 |
| 1989 | 21.1°C | 18.0°C | 15.0°C | 32.9°C | 11.0°C | 40 mm | 74% | 3.6 m/s | 4.6 |
| 1988 | 22.6°C | 18.4°C | 14.2°C | 30.2°C | 11.1°C | 27 mm | 70% | 3.4 m/s | 5.1 |
| 1987 ❄️ | 19.4°C | 15.8°C | 12.2°C | 30.1°C | 8.8°C | 30 mm | 70% | 4.2 m/s | 5.1 |
| 1986 | 22.4°C | 17.8°C | 13.3°C | 34.8°C | 10.8°C | 7 mm | 67% | 3.5 m/s | 5.2 |
| 1985 | 22.1°C | 18.1°C | 14.0°C | 30.2°C | 11.1°C | 38 mm | 72% | 3.6 m/s | 4.8 |
| 1984 | 20.6°C | 16.8°C | 13.0°C | 31.4°C | 9.3°C | 88 mm | 70% | 4.1 m/s | 5.1 |
| 1983 🌧️ | 20.3°C | 17.1°C | 13.9°C | 31.4°C | 9.5°C | 155 mm | 75% | 3.7 m/s | — |
| 1982 | 22.0°C | 17.9°C | 13.7°C | 29.9°C | 11.4°C | 43 mm | 70% | 3.6 m/s | — |
| 1981 | 19.5°C | 16.4°C | 13.4°C | 27.2°C | 11.2°C | 44 mm | 72% | 3.9 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 21°C with lows near 13.8°C (mean 17.4°C), based on 45 years of NASA POWER data.
March averages 39 mm of rainfall in Mount Gambier, one of the drier months. The wettest on record was 155 mm in 1983.
The hottest March reached 34.8°C in 1986. The coldest dipped to 8.8°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 0.4°C. Daytime highs moved from 20.9°C to 21.2°C and overnight lows from 13.6°C to 14.2°C over the same span.
March is one of the warmer months of the year in Mount Gambier and one of the drier months, so plan for around 21°C daytime highs and 13.8°C at night.
Not quite — March is the 10th coolest month in Mount Gambier, averaging 17.4°C.
For March in Mount Gambier, pack light layers you can adjust through the day, with typical highs of 21°C and lows of 13.8°C.
Relative humidity in March averages 72% — moderately humid.
Average wind speed in March is 3.6 m/s. The windiest March on record averaged 4.2 m/s (1987).
The wettest March on record was 1983 with 155 mm. On average, March sees 39 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 Mount Gambier 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.
