October is one of the warmer months of the year in Truro, with average highs near 13.3°C and lows around 5.1°C (mean 9.2°C). It is a relatively wet time of year, averaging 95 mm of rainfall and 84% relative humidity across the period.
October is one of the warmer months of the year in Truro. Across 45 years of records, the warmest October in Truro was 2017 — when the month averaged 11.7°C — while the coldest was 2009 at 6.4°C. Typical October days reach 13.3°C with nights near 5.1°C. The long-term trend is warming, about 0.5°C per decade.
October is a relatively wet time of year in Truro, averaging 95 mm of rainfall. The wettest October on record was 2018 with 221 mm, while the driest was 1994 at 26 mm.
Relative humidity in Truro during October averages 84%. The most humid October was 2005 at 89%, and the least humid was 1993 at 76%.
October receives about 2.5 kWh/m²/day of solar energy in Truro. The sunniest October was 2001 at 3 kWh/m²/day, and the cloudiest were 1990 and 2011 at 2.1.
Average wind speed in Truro during October is 0.7 m/s. The windiest Octobers were 1985, 1993 and 1999 at 0.8 m/s, while the calmest were 2021, 2022 and 2023, among others at 0.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.2°C | 8.8°C | 9.1°C | 9.5°C | 10.9°C | +2.7°C |
| Avg High | 12.5°C | 12.8°C | 13.0°C | 13.5°C | 15.2°C | +2.7°C |
| Avg Low | 3.9°C | 4.8°C | 5.2°C | 5.5°C | 6.5°C | +2.6°C |
| Avg Rain | 78 mm | 81 mm | 121 mm | 111 mm | 73 mm | -5 mm |
October temperatures in Truro have risen by about 2.9°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -5°C (2018) to a record high of 28.7°C (2025).
Rainfall in October is a relatively wet time of year, averaging 95 mm, with a wettest year of 221 mm.
A good time to visit Truro
October is a good time to visit Truro, with days averaging 13.3°C and nights around 5.1°C (mean 9.2°C, warmer than Truro's yearly average) and higher rainfall. August and July are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 15.9°C | 11.6°C | 7.2°C | 28.7°C | 2.6°C | 71 mm | 81% | 0.7 m/s | 2.7 |
| 2024 | 14.1°C | 9.9°C | 5.7°C | 20.7°C | -1.7°C | 52 mm | 84% | 0.7 m/s | 2.6 |
| 2023 | 15.5°C | 11.3°C | 7.2°C | 23.3°C | -2.7°C | 120 mm | 87% | 0.6 m/s | 2.4 |
| 2022 | 16.2°C | 11.5°C | 6.8°C | 23.8°C | -0.3°C | 79 mm | 86% | 0.6 m/s | 2.8 |
| 2021 | 15.7°C | 11.5°C | 7.3°C | 21.4°C | 3.5°C | 51 mm | 84% | 0.6 m/s | 2.5 |
| 2020 | 13.9°C | 9.5°C | 5.0°C | 21.0°C | -4.0°C | 68 mm | 82% | 0.7 m/s | 2.5 |
| 2019 | 12.8°C | 9.0°C | 5.2°C | 17.7°C | 1.1°C | 72 mm | 86% | 0.7 m/s | 2.3 |
| 2018 🌧️ | 11.0°C | 7.1°C | 3.2°C | 21.2°C | -5.0°C | 221 mm | 88% | 0.7 m/s | 2.2 |
| 2017 🔥 | 16.4°C | 11.7°C | 7.0°C | 22.6°C | 0.8°C | 52 mm | 82% | 0.7 m/s | 2.9 |
| 2016 | 13.8°C | 9.8°C | 5.7°C | 21.4°C | -1.7°C | 143 mm | 86% | 0.7 m/s | 2.5 |
| 2015 | 12.5°C | 8.0°C | 3.6°C | 20.1°C | -2.8°C | 115 mm | 84% | 0.7 m/s | 2.6 |
| 2014 | 15.4°C | 11.4°C | 7.5°C | 21.3°C | 2.2°C | 96 mm | 86% | 0.6 m/s | 2.3 |
| 2013 | 13.5°C | 9.2°C | 4.9°C | 21.4°C | -3.2°C | 73 mm | 83% | 0.7 m/s | 2.9 |
| 2012 | 13.8°C | 10.2°C | 6.5°C | 19.3°C | -0.6°C | 73 mm | 88% | 0.7 m/s | 2.3 |
| 2011 | 13.5°C | 10.0°C | 6.4°C | 23.4°C | -0.8°C | 171 mm | 88% | 0.7 m/s | 2.1 |
| 2010 | 12.7°C | 9.0°C | 5.3°C | 25.1°C | -0.7°C | 92 mm | 84% | 0.7 m/s | 2.4 |
| 2009 ❄️ | 9.8°C | 6.4°C | 3.1°C | 17.9°C | -2.1°C | 169 mm | 87% | 0.7 m/s | 2.2 |
| 2008 | 11.9°C | 8.6°C | 5.2°C | 16.8°C | 0.4°C | 64 mm | 87% | 0.7 m/s | 2.5 |
| 2007 | 13.7°C | 9.8°C | 5.8°C | 21.2°C | -2.4°C | 48 mm | 85% | 0.7 m/s | 2.5 |
| 2006 | 12.7°C | 8.9°C | 5.1°C | 19.9°C | 0.1°C | 154 mm | 86% | 0.7 m/s | 2.4 |
| 2005 | 13.8°C | 10.5°C | 7.1°C | 23.8°C | 0.9°C | 219 mm | 89% | 0.7 m/s | 2.2 |
| 2004 | 13.8°C | 10.0°C | 6.2°C | 19.6°C | -1.5°C | 87 mm | 85% | 0.7 m/s | 2.2 |
| 2003 | 14.1°C | 9.7°C | 5.4°C | 22.6°C | -0.8°C | 142 mm | 84% | 0.7 m/s | 2.6 |
| 2002 | 11.4°C | 7.1°C | 2.9°C | 23.9°C | -2.3°C | 103 mm | 83% | 0.7 m/s | 2.6 |
| 2001 | 15.5°C | 10.8°C | 6.2°C | 23.2°C | -0.4°C | 34 mm | 79% | 0.7 m/s | 3 |
| 2000 | 12.8°C | 8.8°C | 4.7°C | 19.5°C | -0.5°C | 185 mm | 86% | 0.7 m/s | 2.5 |
| 1999 | 11.8°C | 7.5°C | 3.2°C | 19.7°C | -2.9°C | 109 mm | 82% | 0.8 m/s | 2.4 |
| 1998 | 11.9°C | 8.6°C | 5.2°C | 20.0°C | -1.5°C | 93 mm | 82% | 0.7 m/s | 2.5 |
| 1997 | 11.8°C | 7.8°C | 3.8°C | 18.6°C | -2.3°C | 27 mm | 78% | 0.7 m/s | 2.5 |
| 1996 | 11.0°C | 7.1°C | 3.2°C | 17.6°C | -1.9°C | 102 mm | 85% | 0.7 m/s | 2.4 |
| 1995 | 15.8°C | 11.6°C | 7.5°C | 23.6°C | -0.7°C | 74 mm | 82% | 0.6 m/s | 2.2 |
| 1994 | 13.7°C | 9.7°C | 5.6°C | 22.9°C | 0.4°C | 26 mm | 79% | 0.7 m/s | 2.4 |
| 1993 | 12.0°C | 7.1°C | 2.2°C | 19.6°C | -2.4°C | 89 mm | 76% | 0.8 m/s | 2.2 |
| 1992 | 12.2°C | 8.2°C | 4.2°C | 19.6°C | -1.9°C | 73 mm | 80% | 0.7 m/s | 2.3 |
| 1991 | 13.5°C | 9.8°C | 6.1°C | 20.5°C | 0.2°C | 98 mm | 87% | 0.7 m/s | 2.2 |
| 1990 | 14.7°C | 10.6°C | 6.6°C | 22.9°C | -2.3°C | 119 mm | 82% | 0.7 m/s | 2.1 |
| 1989 | 13.5°C | 8.6°C | 3.8°C | 20.1°C | -1.7°C | 43 mm | 80% | 0.7 m/s | 2.7 |
| 1988 | 11.5°C | 7.4°C | 3.2°C | 23.4°C | -3.3°C | 176 mm | 85% | 0.7 m/s | 2.4 |
| 1987 | 13.4°C | 9.0°C | 4.6°C | 20.3°C | -0.9°C | 107 mm | 86% | 0.6 m/s | 2.6 |
| 1986 | 11.3°C | 7.0°C | 2.7°C | 17.1°C | -2.8°C | 58 mm | 84% | 0.7 m/s | 2.4 |
| 1985 | 12.2°C | 8.0°C | 3.8°C | 21.6°C | -3.4°C | 62 mm | 78% | 0.8 m/s | 2.4 |
| 1984 | 12.4°C | 8.0°C | 3.7°C | 20.6°C | -2.3°C | 48 mm | 82% | 0.7 m/s | 2.6 |
| 1983 | 13.2°C | 9.2°C | 5.1°C | 23.5°C | -1.6°C | 43 mm | 80% | 0.7 m/s | — |
| 1982 | 12.5°C | 8.3°C | 4.2°C | 20.6°C | -1.8°C | 40 mm | 83% | 0.7 m/s | — |
| 1981 | 12.4°C | 8.2°C | 4.1°C | 17.9°C | -2.1°C | 128 mm | 86% | 0.7 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 13.3°C with lows near 5.1°C (mean 9.2°C), based on 45 years of NASA POWER data.
October averages 95 mm of rainfall in Truro, a relatively wet time of year. The wettest on record was 221 mm in 2018.
The hottest October reached 28.7°C in 2025. The coldest dipped to -5°C in 2018.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.9°C. Daytime highs moved from 12.5°C to 15.5°C and overnight lows from 4.2°C to 6.8°C over the same span.
October is one of the warmer months of the year in Truro and a relatively wet time of year, so plan for around 13.3°C daytime highs and 5.1°C at night.
Not quite — October is the 8th coolest month in Truro, averaging 9.2°C.
For October in Truro, pack warm layers and a jacket for chilly mornings, with typical highs of 13.3°C and lows of 5.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 84% — quite humid.
Average wind speed in October is 0.7 m/s. The windiest October on record averaged 0.8 m/s (1985).
The wettest October on record was 2018 with 221 mm. On average, October sees 95 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 Truro behaves each October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
