October is one of the warmer months of the year in Plymouth, with average highs near 15.8°C and lows around 9.7°C (mean 12.8°C). It is a relatively wet time of year, averaging 116 mm of rainfall and 79% relative humidity across the period.
October is one of the warmer months of the year in Plymouth. Across 45 years of records, the warmest October in Plymouth was 2017 — when the month averaged 15.9°C — while the coldest was 1988 at 10.4°C. Typical October days reach 15.8°C with nights near 9.7°C. The long-term trend is warming, about 0.6°C per decade.
October is a relatively wet time of year in Plymouth, averaging 116 mm of rainfall. The wettest October on record was 2005 with 295 mm, while the driest was 1994 at 23 mm.
Relative humidity in Plymouth during October averages 79%. The most humid October was 2005 at 86%, and the least humid was 1997 at 73%.
October receives about 3.1 kWh/m²/day of solar energy in Plymouth. The sunniest Octobers were 2001 and 2024 at 3.5 kWh/m²/day, and the cloudiest was 2005 at 2.5.
Average wind speed in Plymouth during October is 2.8 m/s. The windiest Octobers were 2010, 2019 and 2025, among others at 3.2 m/s, while the calmest was 2013 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.8°C | 12.3°C | 12.5°C | 13.5°C | 14.2°C | +2.4°C |
| Avg High | 15.0°C | 15.5°C | 15.6°C | 16.5°C | 17.1°C | +2.1°C |
| Avg Low | 8.6°C | 9.1°C | 9.5°C | 10.6°C | 11.4°C | +2.8°C |
| Avg Rain | 101 mm | 113 mm | 109 mm | 129 mm | 131 mm | +30 mm |
October temperatures in Plymouth have risen by about 2.1°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 0.5°C (1988) to a record high of 27.4°C (2007).
Rainfall in October is a relatively wet time of year, averaging 116 mm, with a wettest year of 295 mm.
A good time to visit Plymouth
October is a good time to visit Plymouth, with days averaging 15.8°C and nights around 9.7°C (mean 12.8°C, warmer than Plymouth's yearly average) and higher rainfall. July and August 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 | 16.4°C | 13.7°C | 11.1°C | 26.3°C | 6.3°C | 193 mm | 79% | 3.2 m/s | 3.1 |
| 2024 | 17.3°C | 14.0°C | 10.7°C | 22.8°C | 5.7°C | 30 mm | 75% | 2.5 m/s | 3.5 |
| 2023 | 17.7°C | 14.8°C | 11.9°C | 23.3°C | 6.1°C | 65 mm | 84% | 2.5 m/s | 3.2 |
| 2022 | 16.6°C | 13.9°C | 11.2°C | 21.5°C | 6.9°C | 154 mm | 83% | 2.6 m/s | 2.8 |
| 2021 | 18.0°C | 15.3°C | 12.6°C | 21.8°C | 7.7°C | 184 mm | 83% | 2.8 m/s | 3.1 |
| 2020 | 16.7°C | 13.6°C | 10.6°C | 22.1°C | 2.1°C | 159 mm | 78% | 2.7 m/s | 3 |
| 2019 | 15.9°C | 13.4°C | 10.9°C | 23.4°C | 6.6°C | 167 mm | 82% | 3.2 m/s | 2.6 |
| 2018 | 15.5°C | 12.4°C | 9.2°C | 24.0°C | 1.7°C | 143 mm | 82% | 3 m/s | 2.7 |
| 2017 🔥 | 19.0°C | 15.9°C | 12.7°C | 23.6°C | 7.4°C | 140 mm | 81% | 2.7 m/s | 3.2 |
| 2016 | 16.4°C | 13.3°C | 10.3°C | 23.7°C | 4.1°C | 149 mm | 80% | 2.8 m/s | 3.1 |
| 2015 | 15.1°C | 12.3°C | 9.5°C | 20.5°C | 1.9°C | 94 mm | 77% | 3.1 m/s | 3.2 |
| 2014 | 16.7°C | 13.9°C | 11.1°C | 22.2°C | 5.2°C | 156 mm | 82% | 2.9 m/s | 2.9 |
| 2013 | 17.0°C | 13.8°C | 10.6°C | 24.4°C | 4.6°C | 27 mm | 76% | 2.4 m/s | 3.2 |
| 2012 | 16.8°C | 13.9°C | 11.1°C | 22.6°C | 4.5°C | 80 mm | 81% | 2.6 m/s | 2.9 |
| 2011 | 16.2°C | 13.4°C | 10.7°C | 24.1°C | 2.9°C | 195 mm | 80% | 2.8 m/s | 3.2 |
| 2010 | 15.9°C | 12.8°C | 9.6°C | 23.7°C | 3.9°C | 134 mm | 79% | 3.2 m/s | 3 |
| 2009 | 14.5°C | 11.6°C | 8.6°C | 19.8°C | 4.1°C | 169 mm | 81% | 3 m/s | 2.7 |
| 2008 | 14.8°C | 11.7°C | 8.6°C | 20.0°C | 2.2°C | 62 mm | 80% | 3 m/s | 3.2 |
| 2007 | 18.4°C | 15.1°C | 11.9°C | 27.4°C | 4.1°C | 68 mm | 79% | 2.5 m/s | 2.9 |
| 2006 | 15.7°C | 12.4°C | 9.0°C | 22.6°C | 4.3°C | 115 mm | 77% | 3.2 m/s | 3.2 |
| 2005 🌧️ | 15.5°C | 12.9°C | 10.3°C | 23.4°C | 2.4°C | 295 mm | 86% | 3 m/s | 2.5 |
| 2004 | 14.7°C | 12.3°C | 9.9°C | 19.8°C | 5.8°C | 59 mm | 82% | 2.9 m/s | 2.8 |
| 2003 | 14.8°C | 11.8°C | 8.7°C | 20.3°C | 2.6°C | 133 mm | 79% | 2.8 m/s | 2.8 |
| 2002 | 14.7°C | 11.9°C | 9.2°C | 25.7°C | 3.3°C | 83 mm | 75% | 2.9 m/s | 3.1 |
| 2001 | 17.1°C | 13.4°C | 9.7°C | 23.0°C | 4.3°C | 35 mm | 74% | 2.7 m/s | 3.5 |
| 2000 | 15.6°C | 12.3°C | 8.9°C | 23.6°C | 2.3°C | 71 mm | 78% | 2.7 m/s | 3.1 |
| 1999 | 15.2°C | 11.9°C | 8.6°C | 20.3°C | 4.4°C | 140 mm | 79% | 2.8 m/s | 3.3 |
| 1998 | 15.0°C | 12.0°C | 9.0°C | 22.6°C | 5.4°C | 125 mm | 77% | 3 m/s | 3.3 |
| 1997 | 15.4°C | 12.1°C | 8.9°C | 24.2°C | 2.3°C | 70 mm | 73% | 2.6 m/s | 3.1 |
| 1996 | 14.4°C | 11.2°C | 8.1°C | 18.4°C | 3.7°C | 219 mm | 81% | 3 m/s | 3.1 |
| 1995 | 17.6°C | 14.1°C | 10.5°C | 22.8°C | 4.6°C | 141 mm | 80% | 2.7 m/s | 3.3 |
| 1994 | 15.4°C | 12.2°C | 9.0°C | 19.8°C | 5.4°C | 23 mm | 76% | 2.6 m/s | 3.4 |
| 1993 | 14.4°C | 11.4°C | 8.4°C | 22.0°C | 4.6°C | 120 mm | 77% | 2.9 m/s | 3 |
| 1992 | 14.2°C | 10.9°C | 7.5°C | 20.6°C | 2.6°C | 53 mm | 76% | 2.7 m/s | 3 |
| 1991 | 15.7°C | 12.8°C | 9.9°C | 20.9°C | 4.4°C | 112 mm | 83% | 3.1 m/s | 2.9 |
| 1990 | 17.5°C | 14.1°C | 10.7°C | 24.3°C | 2.6°C | 126 mm | 79% | 3 m/s | 3.1 |
| 1989 | 15.5°C | 12.1°C | 8.7°C | 19.8°C | 4.2°C | 165 mm | 82% | 2.7 m/s | 3.1 |
| 1988 ❄️ | 13.7°C | 10.4°C | 7.2°C | 22.8°C | 0.5°C | 92 mm | 75% | 3.1 m/s | 3 |
| 1987 | 14.2°C | 10.9°C | 7.5°C | 19.6°C | 3.5°C | 66 mm | 81% | 2.7 m/s | 3.2 |
| 1986 | 14.9°C | 11.7°C | 8.4°C | 22.1°C | 3.7°C | 90 mm | 76% | 2.7 m/s | 3.1 |
| 1985 | 16.0°C | 12.6°C | 9.3°C | 22.7°C | 2.7°C | 52 mm | 75% | 2.7 m/s | 3.2 |
| 1984 | 15.7°C | 12.7°C | 9.8°C | 22.1°C | 3.3°C | 125 mm | 82% | 2.5 m/s | 3 |
| 1983 | 15.5°C | 12.6°C | 9.8°C | 24.9°C | 1.9°C | 116 mm | 76% | 2.8 m/s | — |
| 1982 | 15.3°C | 12.1°C | 8.8°C | 23.2°C | 3.6°C | 101 mm | 78% | 2.7 m/s | — |
| 1981 | 13.9°C | 10.9°C | 7.9°C | 17.4°C | 3.8°C | 102 mm | 78% | 2.9 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 15.8°C with lows near 9.7°C (mean 12.8°C), based on 45 years of NASA POWER data.
October averages 116 mm of rainfall in Plymouth, a relatively wet time of year. The wettest on record was 295 mm in 2005.
The hottest October reached 27.4°C in 2007. The coldest dipped to 0.5°C in 1988.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.1°C. Daytime highs moved from 15.3°C to 17.2°C and overnight lows from 9.1°C to 11.5°C over the same span.
October is one of the warmer months of the year in Plymouth and a relatively wet time of year, so plan for around 15.8°C daytime highs and 9.7°C at night.
Not quite — October is the 8th coolest month in Plymouth, averaging 12.8°C.
For October in Plymouth, pack light layers you can adjust through the day, with typical highs of 15.8°C and lows of 9.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 79% — quite humid.
Average wind speed in October is 2.8 m/s. The windiest October on record averaged 3.2 m/s (2006).
The wettest October on record was 2005 with 295 mm. On average, October sees 116 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 Plymouth 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.
