March is one of the warmer months of the year in Tumby Bay, with average highs near 21.8°C and lows around 18.1°C (mean 20°C). It is one of the drier months, averaging 17 mm of rainfall and 72% relative humidity across the period.
March is one of the warmer months of the year in Tumby Bay. Across 45 years of records, the warmest March in Tumby Bay was 2008 — when the month averaged 22°C — while the coldest was 1995 at 18.1°C. Typical March days reach 21.8°C with nights near 18.1°C. The long-term trend is warming, about 0.3°C per decade.
March is one of the drier months in Tumby Bay, averaging 17 mm of rainfall. The wettest March on record was 1983 with 67 mm, while the driest were 2018 and 2019 at 0 mm.
Relative humidity in Tumby Bay during March averages 72%. The most humid March was 1992 at 81%, and the least humid was 2008 at 64%.
March receives about 5.3 kWh/m²/day of solar energy in Tumby Bay. The sunniest March was 1994 at 6.1 kWh/m²/day, and the cloudiest was 1989 at 4.7.
Average wind speed in Tumby Bay during March is 5.2 m/s. The windiest March was 2011 at 6 m/s, while the calmest was 1994 at 4.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.7°C | 19.3°C | 19.9°C | 20.3°C | 20.6°C | +0.9°C |
| Avg High | 21.7°C | 21.1°C | 21.8°C | 22.2°C | 22.3°C | +0.6°C |
| Avg Low | 17.7°C | 17.5°C | 18.0°C | 18.5°C | 18.8°C | +1.1°C |
| Avg Rain | 23 mm | 12 mm | 16 mm | 17 mm | 19 mm | -3 mm |
March temperatures in Tumby Bay have risen by about 1.1°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 14.4°C (1987) to a record high of 35.3°C (2024).
Rainfall in March is one of the drier months, averaging 17 mm, with a wettest year of 67 mm.
One of the best times to visit Tumby Bay
March is one of the best times to visit Tumby Bay. Expect days averaging 21.8°C and nights around 18.1°C (mean 20°C) — warmer than Tumby Bay's yearly average — with low rainfall (17 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 | 23.8°C | 21.9°C | 20.0°C | 32.5°C | 17.6°C | 8 mm | 72% | 5.6 m/s | 5.8 |
| 2024 | 23.4°C | 21.5°C | 19.5°C | 35.3°C | 15.9°C | 17 mm | 71% | 5.3 m/s | 5.5 |
| 2023 | 21.4°C | 19.8°C | 18.1°C | 27.8°C | 16.4°C | 3 mm | 75% | 5.1 m/s | 5.2 |
| 2022 | 22.2°C | 20.7°C | 19.1°C | 30.1°C | 16.9°C | 9 mm | 74% | 5.3 m/s | 5.3 |
| 2021 | 21.3°C | 19.8°C | 18.2°C | 27.1°C | 15.0°C | 20 mm | 74% | 4.9 m/s | 5.7 |
| 2020 | 21.6°C | 19.7°C | 17.8°C | 30.0°C | 16.2°C | 58 mm | 71% | 5.3 m/s | 5 |
| 2019 | 22.3°C | 20.5°C | 18.7°C | 33.3°C | 14.8°C | 0 mm | 70% | 5.1 m/s | 5.3 |
| 2018 | 22.5°C | 20.5°C | 18.5°C | 31.1°C | 15.8°C | 0 mm | 70% | 5.5 m/s | 5.5 |
| 2017 | 23.3°C | 21.3°C | 19.2°C | 31.2°C | 16.0°C | 1 mm | 73% | 5.5 m/s | 5.4 |
| 2016 | 22.1°C | 20.6°C | 19.1°C | 28.6°C | 16.8°C | 6 mm | 75% | 4.7 m/s | 4.9 |
| 2015 | 21.4°C | 19.5°C | 17.6°C | 27.8°C | 15.2°C | 1 mm | 70% | 4.9 m/s | 5.4 |
| 2014 | 22.1°C | 20.1°C | 18.1°C | 29.9°C | 16.1°C | 7 mm | 73% | 5 m/s | 5.4 |
| 2013 | 23.9°C | 21.7°C | 19.6°C | 31.1°C | 16.2°C | 19 mm | 69% | 5.1 m/s | 5.3 |
| 2012 | 21.7°C | 19.8°C | 17.9°C | 30.4°C | 16.0°C | 22 mm | 72% | 5.3 m/s | 5.3 |
| 2011 | 20.3°C | 18.9°C | 17.6°C | 26.3°C | 15.9°C | 64 mm | 77% | 6 m/s | 4.9 |
| 2010 | 22.3°C | 20.5°C | 18.7°C | 29.6°C | 15.6°C | 50 mm | 72% | 5.2 m/s | 5.3 |
| 2009 | 22.0°C | 20.2°C | 18.3°C | 28.7°C | 16.8°C | 15 mm | 72% | 5.1 m/s | 5.3 |
| 2008 🔥 | 24.8°C | 22.0°C | 19.3°C | 33.9°C | 16.1°C | 5 mm | 64% | 4.7 m/s | 5.7 |
| 2007 | 22.6°C | 20.5°C | 18.5°C | 31.0°C | 16.6°C | 20 mm | 70% | 5.7 m/s | 5.3 |
| 2006 | 22.3°C | 20.4°C | 18.5°C | 32.1°C | 16.5°C | 26 mm | 73% | 5.1 m/s | 5.4 |
| 2005 | 20.4°C | 19.0°C | 17.6°C | 29.3°C | 15.8°C | 7 mm | 73% | 5.3 m/s | 5.4 |
| 2004 | 21.5°C | 19.7°C | 17.8°C | 29.3°C | 15.8°C | 22 mm | 70% | 5.3 m/s | 5.5 |
| 2003 | 20.1°C | 18.5°C | 17.0°C | 29.7°C | 15.1°C | 5 mm | 73% | 5 m/s | 5.4 |
| 2002 | 21.0°C | 19.1°C | 17.2°C | 31.4°C | 16.0°C | 8 mm | 73% | 5.1 m/s | 5.7 |
| 2001 | 21.5°C | 19.7°C | 17.8°C | 31.8°C | 14.7°C | 30 mm | 70% | 5.6 m/s | 5.4 |
| 2000 | 22.1°C | 20.2°C | 18.3°C | 31.6°C | 15.7°C | 23 mm | 73% | 5.2 m/s | 5 |
| 1999 | 21.3°C | 19.5°C | 17.7°C | 29.5°C | 15.2°C | 28 mm | 74% | 5.6 m/s | 5 |
| 1998 | 22.4°C | 20.3°C | 18.2°C | 31.4°C | 15.8°C | 9 mm | 71% | 4.8 m/s | 5.5 |
| 1997 | 20.4°C | 18.7°C | 17.0°C | 26.2°C | 14.7°C | 6 mm | 71% | 5.5 m/s | 5.3 |
| 1996 | 22.2°C | 20.1°C | 18.0°C | 33.5°C | 15.3°C | 14 mm | 70% | 5.4 m/s | 5.5 |
| 1995 ❄️ | 19.6°C | 18.1°C | 16.6°C | 27.7°C | 14.7°C | 21 mm | 76% | 4.9 m/s | 5.3 |
| 1994 | 21.2°C | 19.4°C | 17.6°C | 27.0°C | 15.2°C | 1 mm | 69% | 4.4 m/s | 6.1 |
| 1993 | 20.4°C | 18.8°C | 17.2°C | 27.3°C | 15.2°C | 8 mm | 76% | 5 m/s | 5.1 |
| 1992 | 20.5°C | 18.9°C | 17.3°C | 26.9°C | 15.6°C | 18 mm | 81% | 4.8 m/s | 5.1 |
| 1991 | 20.4°C | 18.6°C | 16.8°C | 29.5°C | 15.0°C | 9 mm | 70% | 5.3 m/s | 5.4 |
| 1990 | 22.2°C | 20.2°C | 18.3°C | 28.8°C | 16.3°C | 3 mm | 71% | 5.1 m/s | 5.6 |
| 1989 | 22.1°C | 20.2°C | 18.4°C | 34.2°C | 15.9°C | 25 mm | 74% | 5.3 m/s | 4.7 |
| 1988 | 22.3°C | 20.3°C | 18.3°C | 31.8°C | 15.2°C | 18 mm | 71% | 5.2 m/s | 5.5 |
| 1987 | 20.3°C | 18.3°C | 16.3°C | 30.2°C | 14.4°C | 9 mm | 70% | 5.4 m/s | 5.2 |
| 1986 | 23.0°C | 20.5°C | 18.0°C | 32.6°C | 16.0°C | 1 mm | 69% | 5.2 m/s | 5.3 |
| 1985 | 21.9°C | 19.8°C | 17.8°C | 29.0°C | 15.6°C | 25 mm | 72% | 5 m/s | 5.4 |
| 1984 | 21.6°C | 19.5°C | 17.3°C | 33.1°C | 14.9°C | 18 mm | 68% | 5.4 m/s | 5.3 |
| 1983 🌧️ | 21.0°C | 19.6°C | 18.2°C | 25.7°C | 15.5°C | 67 mm | 77% | 5.5 m/s | — |
| 1982 | 22.9°C | 20.6°C | 18.3°C | 33.0°C | 15.6°C | 16 mm | 70% | 5.2 m/s | — |
| 1981 | 20.2°C | 18.6°C | 17.1°C | 26.7°C | 15.2°C | 22 mm | 70% | 5.3 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 21.8°C with lows near 18.1°C (mean 20°C), based on 45 years of NASA POWER data.
March averages 17 mm of rainfall in Tumby Bay, one of the drier months. The wettest on record was 67 mm in 1983.
The hottest March reached 35.3°C in 2024. The coldest dipped to 14.4°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.1°C. Daytime highs moved from 21.5°C to 22.4°C and overnight lows from 17.7°C to 19°C over the same span.
March is one of the warmer months of the year in Tumby Bay and one of the drier months, so plan for around 21.8°C daytime highs and 18.1°C at night.
Not quite — March is the 10th coolest month in Tumby Bay, averaging 20°C.
For March in Tumby Bay, pack light layers you can adjust through the day, with typical highs of 21.8°C and lows of 18.1°C.
Relative humidity in March averages 72% — moderately humid.
Average wind speed in March is 5.2 m/s. The windiest March on record averaged 6 m/s (2011).
The wettest March on record was 1983 with 67 mm. On average, March sees 17 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 Tumby Bay 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.
