March is one of the cooler months of the year in Saint Austell, with average highs near 9.7°C and lows around 6.6°C (mean 8.1°C). It is about average for rainfall, averaging 84 mm of rainfall and 86% relative humidity across the period.
March is one of the cooler months of the year in Saint Austell. Across 45 years of records, the warmest March in Saint Austell was 2017 — when the month averaged 9.5°C — while the coldest was 2013 at 5.6°C. Typical March days reach 9.7°C with nights near 6.6°C. The long-term trend is warming, about 0.2°C per decade.
March is about average for rainfall in Saint Austell, averaging 84 mm of rainfall. The wettest March on record was 1981 with 163 mm, while the driest was 2025 at 21 mm.
Relative humidity in Saint Austell during March averages 86%. The most humid March was 1997 at 89%, and the least humid was 1995 at 82%.
March receives about 2.8 kWh/m²/day of solar energy in Saint Austell. The sunniest March was 2009 at 3.3 kWh/m²/day, and the cloudiest were 2001, 2006 and 2023, among others at 2.4.
Average wind speed in Saint Austell during March is 6.3 m/s. The windiest March was 2008 at 7.9 m/s, while the calmest was 2011 at 4.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 7.6°C | 8.4°C | 8.2°C | 7.9°C | 8.9°C | +1.3°C |
| Avg High | 9.1°C | 9.9°C | 9.8°C | 9.5°C | 10.5°C | +1.4°C |
| Avg Low | 6.1°C | 6.9°C | 6.7°C | 6.3°C | 7.3°C | +1.2°C |
| Avg Rain | 105 mm | 69 mm | 76 mm | 85 mm | 86 mm | -19 mm |
March temperatures in Saint Austell have risen by about 1.5°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -2.6°C (2018) to a record high of 15.5°C (2012).
Rainfall in March is about average for rainfall, averaging 84 mm, with a wettest year of 163 mm.
A quieter season to visit Saint Austell
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Saint Austell. That said, March — with days averaging 9.7°C and nights around 6.6°C (mean 8.1°C) and higher rainfall (84 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 10.8°C | 9.0°C | 7.3°C | 13.3°C | 3.4°C | 21 mm | 85% | 5 m/s | 3.2 |
| 2024 | 10.6°C | 9.3°C | 8.0°C | 12.7°C | 5.7°C | 148 mm | 87% | 6.4 m/s | 2.7 |
| 2023 | 10.3°C | 8.9°C | 7.5°C | 12.8°C | 3.0°C | 159 mm | 87% | 6.9 m/s | 2.4 |
| 2022 | 11.0°C | 9.2°C | 7.4°C | 15.3°C | 4.5°C | 53 mm | 84% | 6.1 m/s | 3.2 |
| 2021 | 10.1°C | 8.6°C | 7.2°C | 15.0°C | 3.7°C | 47 mm | 84% | 6.1 m/s | 2.9 |
| 2020 | 9.9°C | 8.1°C | 6.4°C | 12.5°C | 3.6°C | 88 mm | 84% | 7.2 m/s | 3.2 |
| 2019 | 10.7°C | 9.2°C | 7.7°C | 13.0°C | 5.9°C | 127 mm | 86% | 6.9 m/s | 2.9 |
| 2018 | 8.0°C | 6.6°C | 5.2°C | 10.7°C | -2.6°C | 152 mm | 86% | 6.7 m/s | 2.5 |
| 2017 🔥 | 11.0°C | 9.5°C | 8.0°C | 13.3°C | 5.5°C | 110 mm | 87% | 6.9 m/s | 2.5 |
| 2016 | 9.1°C | 7.5°C | 5.9°C | 11.5°C | 3.7°C | 99 mm | 83% | 6.2 m/s | 3 |
| 2015 | 9.2°C | 7.6°C | 6.0°C | 11.4°C | 3.3°C | 65 mm | 85% | 6.4 m/s | 2.9 |
| 2014 | 9.9°C | 8.4°C | 7.0°C | 13.0°C | 4.7°C | 48 mm | 88% | 5.6 m/s | 2.6 |
| 2013 ❄️ | 7.2°C | 5.6°C | 4.0°C | 11.2°C | -0.3°C | 102 mm | 83% | 6.4 m/s | 2.5 |
| 2012 | 11.1°C | 9.4°C | 7.6°C | 15.5°C | 6.0°C | 29 mm | 86% | 4.9 m/s | 3.1 |
| 2011 | 10.2°C | 8.3°C | 6.3°C | 14.0°C | 1.3°C | 34 mm | 86% | 4.4 m/s | 3.1 |
| 2010 | 8.8°C | 7.1°C | 5.5°C | 11.1°C | 0.9°C | 83 mm | 86% | 6 m/s | 2.9 |
| 2009 | 9.8°C | 8.2°C | 6.6°C | 12.1°C | 4.3°C | 52 mm | 85% | 6.1 m/s | 3.3 |
| 2008 | 9.5°C | 8.1°C | 6.8°C | 12.3°C | 3.8°C | 102 mm | 82% | 7.9 m/s | 2.9 |
| 2007 | 10.3°C | 8.7°C | 7.1°C | 13.1°C | 3.7°C | 79 mm | 84% | 6.6 m/s | 3 |
| 2006 | 8.3°C | 6.9°C | 5.6°C | 11.8°C | 2.3°C | 98 mm | 86% | 7.6 m/s | 2.4 |
| 2005 | 9.6°C | 8.1°C | 6.5°C | 13.8°C | 1.3°C | 55 mm | 87% | 5.7 m/s | 2.5 |
| 2004 | 9.2°C | 7.8°C | 6.4°C | 12.6°C | 2.0°C | 78 mm | 85% | 6.3 m/s | 2.9 |
| 2003 | 10.8°C | 9.1°C | 7.3°C | 13.6°C | 4.7°C | 47 mm | 86% | 6.2 m/s | 3 |
| 2002 | 10.6°C | 9.1°C | 7.6°C | 12.8°C | 3.6°C | 80 mm | 87% | 6 m/s | 2.5 |
| 2001 | 9.4°C | 8.0°C | 6.6°C | 12.3°C | 1.3°C | 138 mm | 87% | 6.6 m/s | 2.4 |
| 2000 | 10.1°C | 8.4°C | 6.7°C | 13.4°C | 3.8°C | 30 mm | 85% | 5.4 m/s | 3 |
| 1999 | 9.6°C | 8.2°C | 6.8°C | 13.3°C | 3.4°C | 60 mm | 86% | 5.9 m/s | 2.9 |
| 1998 | 10.7°C | 9.3°C | 7.8°C | 13.0°C | 5.9°C | 103 mm | 87% | 6.2 m/s | 2.5 |
| 1997 | 10.9°C | 9.2°C | 7.6°C | 13.0°C | 5.9°C | 46 mm | 89% | 5.3 m/s | 2.9 |
| 1996 | 8.7°C | 7.1°C | 5.6°C | 13.1°C | 2.5°C | 70 mm | 85% | 5.9 m/s | 2.4 |
| 1995 | 9.1°C | 7.5°C | 5.9°C | 12.1°C | 3.7°C | 79 mm | 82% | 7.3 m/s | 2.7 |
| 1994 | 10.0°C | 8.7°C | 7.3°C | 11.5°C | 4.6°C | 105 mm | 87% | 7.6 m/s | 2.4 |
| 1993 | 9.6°C | 7.9°C | 6.3°C | 12.6°C | 1.6°C | 33 mm | 85% | 5.5 m/s | 2.4 |
| 1992 | 9.6°C | 8.2°C | 6.8°C | 11.4°C | 3.4°C | 61 mm | 87% | 7.2 m/s | 2.5 |
| 1991 | 10.3°C | 8.7°C | 7.0°C | 14.2°C | 4.3°C | 109 mm | 88% | 5.8 m/s | 2.5 |
| 1990 | 10.5°C | 9.0°C | 7.4°C | 13.5°C | 3.9°C | 26 mm | 84% | 5.9 m/s | 2.7 |
| 1989 | 10.6°C | 9.0°C | 7.3°C | 13.1°C | 4.0°C | 109 mm | 85% | 7.1 m/s | 2.4 |
| 1988 | 9.3°C | 8.1°C | 6.9°C | 11.0°C | 3.1°C | 136 mm | 87% | 7.1 m/s | 2.7 |
| 1987 | 8.4°C | 6.9°C | 5.4°C | 11.2°C | 1.8°C | 78 mm | 84% | 7 m/s | 2.7 |
| 1986 | 8.5°C | 6.8°C | 5.1°C | 10.7°C | -0.2°C | 93 mm | 87% | 6.9 m/s | 2.9 |
| 1985 | 8.1°C | 6.7°C | 5.3°C | 11.4°C | 2.1°C | 101 mm | 84% | 6 m/s | 2.7 |
| 1984 | 8.0°C | 6.4°C | 4.8°C | 11.4°C | 1.8°C | 61 mm | 83% | 5.2 m/s | 2.7 |
| 1983 | 9.1°C | 7.8°C | 6.4°C | 10.9°C | 4.5°C | 70 mm | 87% | 5.9 m/s | — |
| 1982 | 9.5°C | 7.7°C | 6.0°C | 12.3°C | 3.6°C | 132 mm | 83% | 7 m/s | — |
| 1981 🌧️ | 10.3°C | 9.1°C | 7.9°C | 12.3°C | 2.8°C | 163 mm | 88% | 7.8 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 9.7°C with lows near 6.6°C (mean 8.1°C), based on 45 years of NASA POWER data.
March averages 84 mm of rainfall in Saint Austell, about average for rainfall. The wettest on record was 163 mm in 1981.
The hottest March reached 15.5°C in 2012. The coldest dipped to -2.6°C in 2018.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.5°C. Daytime highs moved from 9°C to 10.6°C and overnight lows from 6.1°C to 7.5°C over the same span.
March is one of the cooler months of the year in Saint Austell and about average for rainfall, so plan for around 9.7°C daytime highs and 6.6°C at night.
Not quite — March is the 3rd coolest month in Saint Austell, averaging 8.1°C.
For March in Saint Austell, pack warm layers and a jacket for chilly mornings, with typical highs of 9.7°C and lows of 6.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 86% — quite humid.
Average wind speed in March is 6.3 m/s. The windiest March on record averaged 7.9 m/s (2008).
The wettest March on record was 1981 with 163 mm. On average, March sees 84 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 Saint Austell 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.
