May is one of the warmer months of the year in Trowbridge, with average highs near 16°C and lows around 7.2°C (mean 11.6°C). It is about average for rainfall, averaging 59 mm of rainfall and 82% relative humidity across the period.
May is one of the warmer months of the year in Trowbridge. Across 45 years of records, the warmest May in Trowbridge was 1989 — when the month averaged 13.3°C — while the coldest was 1996 at 8.8°C. Typical May days reach 16°C with nights near 7.2°C. The long-term trend is warming, about 0.3°C per decade.
May is about average for rainfall in Trowbridge, averaging 59 mm of rainfall. The wettest May on record was 2021 with 123 mm, while the driest was 2020 at 8 mm.
Relative humidity in Trowbridge during May averages 82%. The most humid May was 1981 at 86%, and the least humid was 1990 at 77%.
May receives about 5 kWh/m²/day of solar energy in Trowbridge. The sunniest May was 2020 at 6.4 kWh/m²/day, and the cloudiest was 1993 at 4.2.
Average wind speed in Trowbridge during May is 3.2 m/s. The windiest May was 2011 at 4.2 m/s, while the calmest was 2004 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.9°C | 11.5°C | 11.9°C | 11.6°C | 12.3°C | +1.4°C |
| Avg High | 15.2°C | 16.1°C | 16.1°C | 16.0°C | 16.9°C | +1.7°C |
| Avg Low | 6.6°C | 6.9°C | 7.7°C | 7.2°C | 7.7°C | +1.1°C |
| Avg Rain | 60 mm | 46 mm | 67 mm | 59 mm | 63 mm | +3 mm |
May temperatures in Trowbridge have risen by about 1.8°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -0.9°C (1982) to a record high of 24.6°C (1989).
Rainfall in May is about average for rainfall, averaging 59 mm, with a wettest year of 123 mm.
A good time to visit Trowbridge
May is a good time to visit Trowbridge, with days averaging 16°C and nights around 7.2°C (mean 11.6°C, warmer than Trowbridge's yearly average) and moderate rainfall. July and August 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 | 18.2°C | 13.1°C | 8.0°C | 23.8°C | 2.1°C | 26 mm | 80% | 3 m/s | 5.8 |
| 2024 | 17.4°C | 13.2°C | 9.0°C | 22.0°C | 5.1°C | 89 mm | 84% | 2.6 m/s | 4.8 |
| 2023 | 17.4°C | 12.6°C | 7.7°C | 20.4°C | 4.2°C | 57 mm | 83% | 2.9 m/s | 5.8 |
| 2022 | 16.9°C | 12.6°C | 8.2°C | 21.0°C | 6.1°C | 73 mm | 83% | 2.8 m/s | 5 |
| 2021 🌧️ | 13.7°C | 10.1°C | 6.5°C | 21.1°C | 1.3°C | 123 mm | 83% | 3.5 m/s | 4.7 |
| 2020 | 17.5°C | 12.1°C | 6.8°C | 22.7°C | 0.4°C | 8 mm | 77% | 3 m/s | 6.4 |
| 2019 | 15.9°C | 11.2°C | 6.5°C | 19.7°C | 1.0°C | 35 mm | 81% | 2.6 m/s | 5.1 |
| 2018 | 17.7°C | 12.8°C | 7.9°C | 23.4°C | 1.0°C | 55 mm | 81% | 2.4 m/s | 5.4 |
| 2017 | 17.3°C | 12.8°C | 8.3°C | 23.9°C | 3.2°C | 59 mm | 83% | 3.1 m/s | 5 |
| 2016 | 16.7°C | 12.1°C | 7.4°C | 20.8°C | 2.3°C | 69 mm | 82% | 3 m/s | 5.2 |
| 2015 | 14.7°C | 10.8°C | 6.9°C | 18.8°C | 3.4°C | 79 mm | 82% | 3.8 m/s | 4.9 |
| 2014 | 15.8°C | 11.9°C | 8.0°C | 21.0°C | 2.4°C | 95 mm | 83% | 3.1 m/s | 4.6 |
| 2013 | 14.2°C | 9.9°C | 5.7°C | 19.6°C | 1.1°C | 64 mm | 82% | 3.5 m/s | 4.9 |
| 2012 | 16.4°C | 11.9°C | 7.5°C | 23.9°C | 1.8°C | 54 mm | 81% | 2.9 m/s | 5.1 |
| 2011 | 16.0°C | 11.8°C | 7.6°C | 19.8°C | 1.5°C | 45 mm | 79% | 4.2 m/s | 4.9 |
| 2010 | 15.3°C | 10.7°C | 6.2°C | 23.6°C | 0.9°C | 39 mm | 80% | 2.6 m/s | 5.1 |
| 2009 | 16.2°C | 11.9°C | 7.7°C | 22.7°C | 4.0°C | 38 mm | 82% | 3.7 m/s | 5.1 |
| 2008 | 17.7°C | 13.1°C | 8.5°C | 23.6°C | 2.7°C | 87 mm | 83% | 3.1 m/s | 4.6 |
| 2007 | 15.8°C | 11.9°C | 7.9°C | 21.4°C | 3.7°C | 107 mm | 83% | 3.6 m/s | 4.9 |
| 2006 | 16.0°C | 12.0°C | 8.0°C | 21.7°C | 4.4°C | 101 mm | 84% | 3.5 m/s | 4.6 |
| 2005 | 15.2°C | 10.9°C | 6.5°C | 23.2°C | 0.8°C | 34 mm | 80% | 3.6 m/s | 5.3 |
| 2004 | 16.5°C | 12.2°C | 8.0°C | 21.3°C | 3.6°C | 39 mm | 82% | 2.3 m/s | 5 |
| 2003 | 15.4°C | 11.5°C | 7.5°C | 23.7°C | 3.5°C | 59 mm | 83% | 3.5 m/s | 4.6 |
| 2002 | 15.4°C | 11.6°C | 7.8°C | 22.0°C | 2.9°C | 92 mm | 83% | 3.8 m/s | 4.5 |
| 2001 | 16.9°C | 12.0°C | 7.1°C | 22.1°C | 1.6°C | 35 mm | 83% | 2.9 m/s | 5.1 |
| 2000 | 16.0°C | 11.7°C | 7.5°C | 21.4°C | 4.5°C | 80 mm | 85% | 3.2 m/s | 4.8 |
| 1999 | 16.7°C | 12.7°C | 8.7°C | 21.5°C | 5.4°C | 49 mm | 83% | 3.3 m/s | 4.3 |
| 1998 | 17.4°C | 12.9°C | 8.4°C | 22.4°C | 2.0°C | 29 mm | 82% | 3 m/s | 6.2 |
| 1997 | 16.0°C | 11.2°C | 6.4°C | 22.7°C | 1.6°C | 67 mm | 81% | 3.1 m/s | 5 |
| 1996 ❄️ | 13.1°C | 8.8°C | 4.4°C | 18.8°C | 0.2°C | 54 mm | 80% | 3.8 m/s | 4.5 |
| 1995 | 15.8°C | 11.1°C | 6.4°C | 23.0°C | 1.0°C | 39 mm | 79% | 3 m/s | 5 |
| 1994 | 14.4°C | 10.4°C | 6.3°C | 17.9°C | 2.7°C | 85 mm | 83% | 3 m/s | 4.6 |
| 1993 | 15.6°C | 11.3°C | 6.9°C | 21.3°C | 1.3°C | 66 mm | 82% | 3.9 m/s | 4.2 |
| 1992 | 18.3°C | 13.1°C | 7.8°C | 24.4°C | 2.0°C | 39 mm | 78% | 3 m/s | 5.8 |
| 1991 | 15.9°C | 11.1°C | 6.3°C | 20.7°C | 1.3°C | 13 mm | 79% | 2.8 m/s | 4.6 |
| 1990 | 18.1°C | 12.7°C | 7.3°C | 24.1°C | 4.7°C | 16 mm | 77% | 2.5 m/s | 5.5 |
| 1989 🔥 | 18.5°C | 13.3°C | 8.1°C | 24.6°C | 3.8°C | 17 mm | 79% | 2.6 m/s | 5.6 |
| 1988 | 16.1°C | 11.7°C | 7.4°C | 21.5°C | 3.2°C | 52 mm | 82% | 3.1 m/s | 5 |
| 1987 | 14.5°C | 10.0°C | 5.6°C | 18.9°C | 1.0°C | 34 mm | 81% | 3.3 m/s | 4.5 |
| 1986 | 14.2°C | 10.4°C | 6.5°C | 18.0°C | 3.7°C | 84 mm | 84% | 4.1 m/s | 4.5 |
| 1985 | 15.3°C | 10.8°C | 6.4°C | 19.3°C | 2.2°C | 61 mm | 82% | 3 m/s | 4.6 |
| 1984 | 14.5°C | 10.0°C | 5.5°C | 20.6°C | 1.7°C | 69 mm | 79% | 3 m/s | 4.7 |
| 1983 | 13.5°C | 9.9°C | 6.4°C | 18.0°C | 3.9°C | 95 mm | 85% | 3.1 m/s | — |
| 1982 | 15.6°C | 10.9°C | 6.2°C | 21.6°C | -0.9°C | 30 mm | 80% | 2.8 m/s | — |
| 1981 | 14.5°C | 10.8°C | 7.2°C | 20.4°C | 1.6°C | 97 mm | 86% | 3.4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 16°C with lows near 7.2°C (mean 11.6°C), based on 45 years of NASA POWER data.
May averages 59 mm of rainfall in Trowbridge, about average for rainfall. The wettest on record was 123 mm in 2021.
The hottest May reached 24.6°C in 1989. The coldest dipped to -0.9°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.8°C. Daytime highs moved from 14.7°C to 16.7°C and overnight lows from 6.3°C to 7.9°C over the same span.
May is one of the warmer months of the year in Trowbridge and about average for rainfall, so plan for around 16°C daytime highs and 7.2°C at night.
Not quite — May is the 8th coolest month in Trowbridge, averaging 11.6°C.
For May in Trowbridge, pack warm layers and a jacket for chilly mornings, with typical highs of 16°C and lows of 7.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 82% — quite humid.
Average wind speed in May is 3.2 m/s. The windiest May on record averaged 4.2 m/s (2011).
The wettest May on record was 2021 with 123 mm. On average, May sees 59 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 Trowbridge 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.
