May is one of the warmer months of the year in Saltash, with average highs near 14.3°C and lows around 8.4°C (mean 11.4°C). It is one of the drier months, averaging 71 mm of rainfall and 85% relative humidity across the period.
May is one of the warmer months of the year in Saltash. Across 45 years of records, the warmest May in Saltash was 2025 — when the month averaged 13.4°C — while the coldest was 1996 at 8.9°C. Typical May days reach 14.3°C with nights near 8.4°C. The long-term trend is warming, about 0.3°C per decade.
May is one of the drier months in Saltash, averaging 71 mm of rainfall. The wettest May on record was 2002 with 154 mm, while the driest was 1989 at 10 mm.
Relative humidity in Saltash during May averages 85%. The most humid May was 1981 at 89%, and the least humid was 2020 at 80%.
May receives about 5.5 kWh/m²/day of solar energy in Saltash. The sunniest May was 2020 at 6.6 kWh/m²/day, and the cloudiest were 1993 and 2006 at 4.8.
Average wind speed in Saltash during May is 4.1 m/s. The windiest Mays were 1986 and 2011 at 5.2 m/s, while the calmest was 2018 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.7°C | 11.4°C | 11.5°C | 11.3°C | 12.2°C | +1.5°C |
| Avg High | 13.5°C | 14.5°C | 14.3°C | 14.2°C | 15.3°C | +1.8°C |
| Avg Low | 7.8°C | 8.3°C | 8.7°C | 8.5°C | 9.1°C | +1.3°C |
| Avg Rain | 69 mm | 65 mm | 87 mm | 63 mm | 69 mm | +0 mm |
May temperatures in Saltash have risen by about 2°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 2.4°C (1996) to a record high of 23°C (1989).
Rainfall in May is one of the drier months, averaging 71 mm, with a wettest year of 154 mm.
A good time to visit Saltash
May is a good time to visit Saltash, with days averaging 14.3°C and nights around 8.4°C (mean 11.4°C, close to Saltash's yearly average) and moderate rainfall. August and July are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🔥 | 16.7°C | 13.4°C | 10.1°C | 19.8°C | 5.2°C | 38 mm | 82% | 3.6 m/s | 6.1 |
| 2024 | 15.8°C | 13.0°C | 10.2°C | 20.0°C | 6.7°C | 97 mm | 86% | 3.5 m/s | 5.4 |
| 2023 | 15.9°C | 12.5°C | 9.1°C | 19.4°C | 6.2°C | 64 mm | 85% | 3.8 m/s | 6.2 |
| 2022 | 15.3°C | 12.4°C | 9.4°C | 17.3°C | 7.9°C | 54 mm | 86% | 3.4 m/s | 5.5 |
| 2021 | 12.4°C | 10.0°C | 7.7°C | 17.9°C | 4.1°C | 138 mm | 83% | 4.7 m/s | 5.4 |
| 2020 | 15.7°C | 12.0°C | 8.3°C | 21.5°C | 3.4°C | 22 mm | 80% | 4 m/s | 6.6 |
| 2019 | 14.1°C | 11.2°C | 8.2°C | 17.4°C | 3.7°C | 39 mm | 83% | 3.6 m/s | 5.9 |
| 2018 | 15.9°C | 12.4°C | 8.9°C | 21.5°C | 4.8°C | 47 mm | 85% | 3 m/s | 5.5 |
| 2017 | 15.1°C | 12.2°C | 9.4°C | 19.7°C | 6.1°C | 84 mm | 87% | 3.9 m/s | 5.1 |
| 2016 | 14.9°C | 11.7°C | 8.6°C | 18.1°C | 4.7°C | 57 mm | 86% | 3.5 m/s | 5.3 |
| 2015 | 13.3°C | 10.8°C | 8.3°C | 17.6°C | 5.6°C | 97 mm | 85% | 4.7 m/s | 5.3 |
| 2014 | 14.2°C | 11.7°C | 9.2°C | 18.6°C | 6.7°C | 87 mm | 85% | 3.8 m/s | 5.5 |
| 2013 | 12.4°C | 9.7°C | 7.0°C | 15.7°C | 4.0°C | 77 mm | 84% | 4.7 m/s | 5.6 |
| 2012 | 14.4°C | 11.4°C | 8.3°C | 21.1°C | 5.0°C | 50 mm | 85% | 3.5 m/s | 5.3 |
| 2011 | 13.8°C | 11.5°C | 9.1°C | 16.6°C | 7.1°C | 51 mm | 84% | 5.2 m/s | 5.1 |
| 2010 | 13.8°C | 10.8°C | 7.7°C | 21.4°C | 3.6°C | 43 mm | 83% | 3.3 m/s | 5.4 |
| 2009 | 14.1°C | 11.3°C | 8.5°C | 19.7°C | 6.1°C | 60 mm | 84% | 4.7 m/s | 5.5 |
| 2008 | 15.6°C | 12.7°C | 9.7°C | 20.0°C | 6.6°C | 103 mm | 86% | 3.6 m/s | 4.9 |
| 2007 | 14.6°C | 11.8°C | 9.1°C | 19.7°C | 6.0°C | 127 mm | 85% | 4.7 m/s | 5.3 |
| 2006 | 13.8°C | 11.3°C | 8.8°C | 17.8°C | 5.4°C | 120 mm | 87% | 4.6 m/s | 4.8 |
| 2005 | 13.1°C | 10.5°C | 8.0°C | 18.0°C | 4.6°C | 53 mm | 85% | 4.5 m/s | 5.4 |
| 2004 | 15.1°C | 11.9°C | 8.7°C | 19.8°C | 5.0°C | 42 mm | 84% | 3.2 m/s | 6 |
| 2003 | 13.6°C | 11.1°C | 8.6°C | 20.5°C | 5.4°C | 86 mm | 85% | 4.5 m/s | 5.1 |
| 2002 🌧️ | 13.5°C | 11.0°C | 8.4°C | 17.6°C | 5.1°C | 154 mm | 86% | 4.8 m/s | 5.2 |
| 2001 | 15.2°C | 11.8°C | 8.4°C | 19.9°C | 4.6°C | 26 mm | 84% | 3.5 m/s | 5.9 |
| 2000 | 14.2°C | 11.4°C | 8.6°C | 18.8°C | 6.8°C | 103 mm | 87% | 4.2 m/s | 5 |
| 1999 | 15.0°C | 12.3°C | 9.6°C | 17.6°C | 7.4°C | 58 mm | 87% | 4.3 m/s | 4.9 |
| 1998 | 15.9°C | 12.8°C | 9.8°C | 21.2°C | 5.5°C | 38 mm | 85% | 3.7 m/s | 6.1 |
| 1997 | 14.5°C | 11.4°C | 8.4°C | 18.7°C | 3.6°C | 79 mm | 84% | 4.5 m/s | 6 |
| 1996 ❄️ | 12.1°C | 8.9°C | 5.8°C | 16.4°C | 2.4°C | 113 mm | 82% | 4.7 m/s | 5.2 |
| 1995 | 14.0°C | 10.9°C | 7.9°C | 21.6°C | 3.9°C | 46 mm | 82% | 3.9 m/s | 5.3 |
| 1994 | 13.1°C | 10.5°C | 7.8°C | 16.6°C | 4.5°C | 112 mm | 85% | 3.8 m/s | 5.2 |
| 1993 | 13.9°C | 10.9°C | 8.0°C | 19.3°C | 3.5°C | 134 mm | 85% | 4.6 m/s | 4.8 |
| 1992 | 15.6°C | 12.2°C | 8.7°C | 21.0°C | 4.1°C | 30 mm | 84% | 4 m/s | 5.6 |
| 1991 | 14.4°C | 11.0°C | 7.7°C | 19.1°C | 3.9°C | 13 mm | 84% | 3.8 m/s | 5.3 |
| 1990 | 16.2°C | 12.6°C | 9.1°C | 21.3°C | 6.1°C | 24 mm | 81% | 3.3 m/s | 5.8 |
| 1989 | 16.6°C | 13.1°C | 9.5°C | 23.0°C | 6.6°C | 10 mm | 83% | 3.3 m/s | 5.9 |
| 1988 | 14.2°C | 11.3°C | 8.3°C | 19.2°C | 5.3°C | 64 mm | 84% | 4.2 m/s | 5.7 |
| 1987 | 13.2°C | 10.1°C | 7.1°C | 18.7°C | 3.5°C | 38 mm | 83% | 4.3 m/s | 5.2 |
| 1986 | 12.5°C | 10.1°C | 7.7°C | 15.5°C | 5.4°C | 85 mm | 86% | 5.2 m/s | 5.1 |
| 1985 | 13.7°C | 10.7°C | 7.7°C | 18.4°C | 4.8°C | 52 mm | 84% | 3.9 m/s | 5.5 |
| 1984 | 13.0°C | 9.9°C | 6.9°C | 16.7°C | 3.1°C | 65 mm | 83% | 4.1 m/s | 5.3 |
| 1983 | 12.1°C | 9.7°C | 7.4°C | 15.2°C | 5.3°C | 111 mm | 86% | 4.2 m/s | — |
| 1982 | 13.5°C | 10.7°C | 7.8°C | 19.0°C | 2.5°C | 45 mm | 83% | 3.8 m/s | — |
| 1981 | 12.7°C | 10.4°C | 8.1°C | 15.7°C | 3.8°C | 148 mm | 89% | 4.6 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 14.3°C with lows near 8.4°C (mean 11.4°C), based on 45 years of NASA POWER data.
May averages 71 mm of rainfall in Saltash, one of the drier months. The wettest on record was 154 mm in 2002.
The hottest May reached 23°C in 1989. The coldest dipped to 2.4°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 2°C. Daytime highs moved from 13°C to 15.2°C and overnight lows from 7.6°C to 9.3°C over the same span.
May is one of the warmer months of the year in Saltash and one of the drier months, so plan for around 14.3°C daytime highs and 8.4°C at night.
Not quite — May is the 7th coolest month in Saltash, averaging 11.4°C.
For May in Saltash, pack light layers you can adjust through the day, with typical highs of 14.3°C and lows of 8.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 85% — quite humid.
Average wind speed in May is 4.1 m/s. The windiest May on record averaged 5.2 m/s (1986).
The wettest May on record was 2002 with 154 mm. On average, May sees 71 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 Saltash behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
