May is one of the warmer months of the year in Plympton, with average highs near 14.5°C and lows around 8.3°C (mean 11.4°C). It is one of the drier months, averaging 67 mm of rainfall and 84% relative humidity across the period.
May is one of the warmer months of the year in Plympton. Across 45 years of records, the warmest May in Plympton was 2025 — when the month averaged 13.3°C — while the coldest was 1996 at 9°C. Typical May days reach 14.5°C with nights near 8.3°C. The long-term trend is warming, about 0.3°C per decade.
May is one of the drier months in Plympton, averaging 67 mm of rainfall. The wettest May on record was 2002 with 139 mm, while the driest was 1989 at 8 mm.
Relative humidity in Plympton during May averages 84%. 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 Plympton. 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 Plympton during May is 3.8 m/s. The windiest Mays were 1986 and 2011 at 4.8 m/s, while the calmest was 2018 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.8°C | 11.5°C | 11.6°C | 11.4°C | 12.2°C | +1.4°C |
| Avg High | 13.8°C | 14.6°C | 14.6°C | 14.5°C | 15.5°C | +1.7°C |
| Avg Low | 7.7°C | 8.2°C | 8.6°C | 8.3°C | 9.0°C | +1.3°C |
| Avg Rain | 65 mm | 61 mm | 82 mm | 59 mm | 69 mm | +4 mm |
May temperatures in Plympton have risen by about 1.9°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 2.5°C (1996) to a record high of 22.4°C (1989).
Rainfall in May is one of the drier months, averaging 67 mm, with a wettest year of 139 mm.
A good time to visit Plympton
May is a good time to visit Plympton, with days averaging 14.5°C and nights around 8.3°C (mean 11.4°C, close to Plympton'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 | 13.3°C | 9.9°C | 19.9°C | 5.0°C | 34 mm | 82% | 3.4 m/s | 6.1 |
| 2024 | 16.0°C | 13.0°C | 10.0°C | 20.1°C | 6.8°C | 109 mm | 86% | 3.2 m/s | 5.4 |
| 2023 | 16.2°C | 12.6°C | 9.1°C | 19.3°C | 6.2°C | 63 mm | 84% | 3.6 m/s | 6.2 |
| 2022 | 15.6°C | 12.4°C | 9.2°C | 17.5°C | 7.5°C | 53 mm | 85% | 3.2 m/s | 5.5 |
| 2021 | 12.7°C | 10.1°C | 7.5°C | 17.6°C | 3.8°C | 135 mm | 83% | 4.5 m/s | 5.4 |
| 2020 | 15.8°C | 12.0°C | 8.2°C | 20.8°C | 3.6°C | 23 mm | 80% | 3.7 m/s | 6.6 |
| 2019 | 14.5°C | 11.3°C | 8.1°C | 18.1°C | 3.5°C | 42 mm | 83% | 3.3 m/s | 5.9 |
| 2018 | 15.9°C | 12.4°C | 8.8°C | 21.4°C | 4.4°C | 44 mm | 84% | 2.8 m/s | 5.5 |
| 2017 | 15.2°C | 12.3°C | 9.3°C | 19.0°C | 6.3°C | 84 mm | 87% | 3.7 m/s | 5.1 |
| 2016 | 15.1°C | 11.8°C | 8.5°C | 18.6°C | 4.8°C | 56 mm | 86% | 3.3 m/s | 5.3 |
| 2015 | 13.8°C | 11.0°C | 8.3°C | 18.6°C | 6.1°C | 88 mm | 84% | 4.4 m/s | 5.3 |
| 2014 | 14.5°C | 11.8°C | 9.1°C | 19.2°C | 6.7°C | 87 mm | 85% | 3.6 m/s | 5.5 |
| 2013 | 13.0°C | 9.9°C | 6.7°C | 17.0°C | 3.7°C | 59 mm | 84% | 4.4 m/s | 5.6 |
| 2012 | 14.7°C | 11.5°C | 8.3°C | 21.2°C | 4.9°C | 50 mm | 85% | 3.4 m/s | 5.3 |
| 2011 | 14.3°C | 11.6°C | 8.9°C | 16.2°C | 6.9°C | 45 mm | 84% | 4.8 m/s | 5.1 |
| 2010 | 14.0°C | 10.7°C | 7.5°C | 22.2°C | 3.5°C | 36 mm | 83% | 3 m/s | 5.4 |
| 2009 | 14.5°C | 11.5°C | 8.5°C | 19.7°C | 5.9°C | 51 mm | 84% | 4.4 m/s | 5.5 |
| 2008 | 15.6°C | 12.7°C | 9.7°C | 21.2°C | 6.6°C | 114 mm | 86% | 3.4 m/s | 4.9 |
| 2007 | 15.1°C | 12.0°C | 9.0°C | 20.6°C | 5.5°C | 122 mm | 84% | 4.5 m/s | 5.3 |
| 2006 | 14.3°C | 11.5°C | 8.7°C | 17.4°C | 5.6°C | 114 mm | 87% | 4.3 m/s | 4.8 |
| 2005 | 13.5°C | 10.7°C | 7.9°C | 18.1°C | 4.4°C | 47 mm | 85% | 4.2 m/s | 5.4 |
| 2004 | 15.5°C | 12.1°C | 8.8°C | 20.5°C | 4.7°C | 39 mm | 83% | 2.9 m/s | 6 |
| 2003 | 14.0°C | 11.2°C | 8.4°C | 20.0°C | 5.6°C | 74 mm | 85% | 4.2 m/s | 5.1 |
| 2002 🌧️ | 13.9°C | 11.2°C | 8.4°C | 17.4°C | 4.8°C | 139 mm | 85% | 4.5 m/s | 5.2 |
| 2001 | 15.2°C | 11.7°C | 8.2°C | 19.2°C | 4.4°C | 26 mm | 84% | 3.3 m/s | 5.9 |
| 2000 | 14.4°C | 11.5°C | 8.6°C | 18.8°C | 6.5°C | 95 mm | 87% | 4 m/s | 5 |
| 1999 | 15.2°C | 12.4°C | 9.5°C | 17.9°C | 7.1°C | 61 mm | 86% | 4 m/s | 4.9 |
| 1998 | 16.1°C | 13.0°C | 9.8°C | 21.8°C | 5.1°C | 36 mm | 85% | 3.4 m/s | 6.1 |
| 1997 | 14.5°C | 11.4°C | 8.3°C | 18.3°C | 3.4°C | 69 mm | 84% | 4.2 m/s | 6 |
| 1996 ❄️ | 12.2°C | 9.0°C | 5.8°C | 16.2°C | 2.5°C | 108 mm | 83% | 4.5 m/s | 5.2 |
| 1995 | 14.3°C | 11.1°C | 7.8°C | 21.8°C | 3.4°C | 48 mm | 82% | 3.6 m/s | 5.3 |
| 1994 | 13.1°C | 10.4°C | 7.8°C | 15.8°C | 4.8°C | 118 mm | 86% | 3.7 m/s | 5.2 |
| 1993 | 14.1°C | 11.1°C | 8.0°C | 19.2°C | 3.9°C | 114 mm | 85% | 4.4 m/s | 4.8 |
| 1992 | 15.8°C | 12.2°C | 8.7°C | 20.8°C | 4.1°C | 26 mm | 83% | 3.6 m/s | 5.6 |
| 1991 | 14.8°C | 11.3°C | 7.7°C | 19.8°C | 3.7°C | 12 mm | 83% | 3.4 m/s | 5.3 |
| 1990 | 16.3°C | 12.6°C | 8.9°C | 20.7°C | 6.0°C | 21 mm | 81% | 3.1 m/s | 5.8 |
| 1989 | 16.6°C | 13.0°C | 9.3°C | 22.4°C | 6.6°C | 8 mm | 83% | 3.1 m/s | 5.9 |
| 1988 | 14.5°C | 11.5°C | 8.5°C | 19.1°C | 5.5°C | 60 mm | 84% | 3.8 m/s | 5.7 |
| 1987 | 13.6°C | 10.2°C | 6.8°C | 19.6°C | 3.5°C | 35 mm | 83% | 4 m/s | 5.2 |
| 1986 | 12.9°C | 10.3°C | 7.6°C | 15.2°C | 5.0°C | 83 mm | 86% | 4.8 m/s | 5.1 |
| 1985 | 14.0°C | 10.9°C | 7.7°C | 18.7°C | 4.2°C | 50 mm | 83% | 3.6 m/s | 5.5 |
| 1984 | 13.3°C | 10.1°C | 6.9°C | 18.4°C | 3.3°C | 65 mm | 82% | 3.8 m/s | 5.3 |
| 1983 | 12.4°C | 9.8°C | 7.2°C | 15.8°C | 5.6°C | 111 mm | 86% | 3.9 m/s | — |
| 1982 | 13.7°C | 10.7°C | 7.7°C | 19.5°C | 2.8°C | 39 mm | 83% | 3.5 m/s | — |
| 1981 | 13.0°C | 10.5°C | 8.0°C | 16.8°C | 3.9°C | 136 mm | 89% | 4.3 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 14.5°C with lows near 8.3°C (mean 11.4°C), based on 45 years of NASA POWER data.
May averages 67 mm of rainfall in Plympton, one of the drier months. The wettest on record was 139 mm in 2002.
The hottest May reached 22.4°C in 1989. The coldest dipped to 2.5°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.9°C. Daytime highs moved from 13.3°C to 15.4°C and overnight lows from 7.5°C to 9.1°C over the same span.
May is one of the warmer months of the year in Plympton and one of the drier months, so plan for around 14.5°C daytime highs and 8.3°C at night.
Not quite — May is the 7th coolest month in Plympton, averaging 11.4°C.
For May in Plympton, pack light layers you can adjust through the day, with typical highs of 14.5°C and lows of 8.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 84% — quite humid.
Average wind speed in May is 3.8 m/s. The windiest May on record averaged 4.8 m/s (1986).
The wettest May on record was 2002 with 139 mm. On average, May sees 67 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 Plympton 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.
