May is one of the warmer months of the year in Worcester, with average highs near 19°C and lows around 7.4°C (mean 13.2°C). It is about average for rainfall, averaging 100 mm of rainfall and 78% relative humidity across the period.
May is one of the warmer months of the year in Worcester. Across 45 years of records, the warmest May in Worcester was 2015 — when the month averaged 16°C — while the coldest was 2005 at 10.3°C. Typical May days reach 19°C with nights near 7.4°C. The long-term trend is warming, about 0.3°C per decade.
May is about average for rainfall in Worcester, averaging 100 mm of rainfall. The wettest May on record was 1984 with 268 mm, while the driest was 2015 at 35 mm.
Relative humidity in Worcester during May averages 78%. The most humid May was 2011 at 83%, and the least humid was 2023 at 71%.
May receives about 5.3 kWh/m²/day of solar energy in Worcester. The sunniest May was 2023 at 6.7 kWh/m²/day, and the cloudiest was 1984 at 4.3.
Average wind speed in Worcester during May is 0.1 m/s. The windiest Mays were 2022, 2023 and 2024, among others at 0.1 m/s, while the calmest were 2015, 2018 and 2025, among others at 0 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.9°C | 12.7°C | 12.7°C | 14.2°C | 13.7°C | +0.8°C |
| Avg High | 18.8°C | 18.6°C | 18.5°C | 20.0°C | 19.5°C | +0.7°C |
| Avg Low | 7.1°C | 6.8°C | 7.0°C | 8.4°C | 7.8°C | +0.7°C |
| Avg Rain | 112 mm | 96 mm | 104 mm | 85 mm | 105 mm | -7 mm |
May temperatures in Worcester have risen by about 1.2°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -3.1°C (1992) to a record high of 31.3°C (2016).
Rainfall in May is about average for rainfall, averaging 100 mm, with a wettest year of 268 mm.
A good time to visit Worcester
May is a good time to visit Worcester, with days averaging 19°C and nights around 7.4°C (mean 13.2°C, warmer than Worcester's yearly average) and higher 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 | 19.0°C | 13.7°C | 8.5°C | 26.5°C | 2.7°C | 220 mm | 82% | 0 m/s | 4.5 |
| 2024 | 20.4°C | 15.0°C | 9.5°C | 27.7°C | 2.9°C | 110 mm | 81% | 0.1 m/s | 5.2 |
| 2023 | 19.4°C | 12.8°C | 6.3°C | 26.9°C | -1.2°C | 76 mm | 71% | 0.1 m/s | 6.7 |
| 2022 | 20.7°C | 14.7°C | 8.7°C | 29.1°C | 0.8°C | 55 mm | 75% | 0.1 m/s | 6 |
| 2021 | 19.3°C | 13.6°C | 7.9°C | 29.1°C | 1.6°C | 118 mm | 74% | 0.1 m/s | 5.6 |
| 2020 | 18.3°C | 12.2°C | 6.1°C | 27.3°C | -0.8°C | 53 mm | 74% | 0.1 m/s | 6.4 |
| 2019 | 17.8°C | 12.3°C | 6.9°C | 26.4°C | 1.4°C | 83 mm | 80% | 0.1 m/s | 4.8 |
| 2018 | 21.4°C | 15.4°C | 9.4°C | 28.4°C | 3.4°C | 42 mm | 79% | 0 m/s | 5.6 |
| 2017 | 17.6°C | 12.3°C | 7.1°C | 29.4°C | -0.1°C | 148 mm | 80% | 0.1 m/s | 4.5 |
| 2016 | 18.9°C | 13.2°C | 7.5°C | 31.3°C | 1.1°C | 61 mm | 77% | 0.1 m/s | 5.2 |
| 2015 🔥 | 22.8°C | 16.0°C | 9.3°C | 28.1°C | 3.5°C | 35 mm | 72% | 0 m/s | 6.1 |
| 2014 | 19.0°C | 13.3°C | 7.7°C | 25.9°C | 2.9°C | 89 mm | 78% | 0.1 m/s | 5.1 |
| 2013 | 20.1°C | 13.7°C | 7.2°C | 30.2°C | 1.0°C | 128 mm | 77% | 0.1 m/s | 5.8 |
| 2012 | 21.0°C | 15.8°C | 10.6°C | 28.6°C | 4.8°C | 112 mm | 81% | 0.1 m/s | 4.7 |
| 2011 | 19.5°C | 14.2°C | 9.0°C | 28.3°C | 2.3°C | 80 mm | 83% | 0.1 m/s | 4.8 |
| 2010 | 21.4°C | 15.3°C | 9.2°C | 30.8°C | -0.5°C | 69 mm | 75% | 0 m/s | 6.2 |
| 2009 | 18.9°C | 13.4°C | 7.9°C | 27.4°C | 2.5°C | 101 mm | 77% | 0.1 m/s | 5.1 |
| 2008 | 17.6°C | 11.9°C | 6.2°C | 25.8°C | -2.3°C | 45 mm | 75% | 0.1 m/s | 5.6 |
| 2007 | 20.3°C | 13.9°C | 7.5°C | 29.9°C | 0.9°C | 87 mm | 76% | 0 m/s | 6.1 |
| 2006 | 17.7°C | 12.7°C | 7.7°C | 26.9°C | 2.9°C | 207 mm | 81% | 0.1 m/s | 4.7 |
| 2005 ❄️ | 15.2°C | 10.3°C | 5.4°C | 24.0°C | -0.1°C | 103 mm | 80% | 0.1 m/s | 4.4 |
| 2004 | 20.4°C | 14.1°C | 7.9°C | 27.9°C | 0.0°C | 112 mm | 80% | 0.1 m/s | 5.2 |
| 2003 | 17.4°C | 11.9°C | 6.4°C | 26.9°C | 0.0°C | 111 mm | 81% | 0.1 m/s | 4.5 |
| 2002 | 18.2°C | 12.2°C | 6.3°C | 25.9°C | -0.2°C | 126 mm | 72% | 0.1 m/s | 5.6 |
| 2001 | 20.0°C | 13.8°C | 7.5°C | 28.2°C | -0.4°C | 56 mm | 73% | 0.1 m/s | 5.6 |
| 2000 | 18.8°C | 12.8°C | 6.8°C | 28.1°C | -0.4°C | 87 mm | 79% | 0.1 m/s | 5 |
| 1999 | 20.9°C | 14.3°C | 7.8°C | 30.9°C | 1.4°C | 80 mm | 72% | 0.1 m/s | 5.7 |
| 1998 | 20.3°C | 14.6°C | 8.9°C | 27.2°C | 0.7°C | 135 mm | 80% | 0.1 m/s | 5.6 |
| 1997 | 16.0°C | 10.6°C | 5.2°C | 24.6°C | -0.7°C | 81 mm | 77% | 0.1 m/s | 5.3 |
| 1996 | 17.5°C | 11.7°C | 5.8°C | 27.1°C | -1.0°C | 104 mm | 79% | 0.1 m/s | 5.3 |
| 1995 | 17.7°C | 12.1°C | 6.5°C | 24.3°C | 0.5°C | 66 mm | 76% | 0.1 m/s | 5 |
| 1994 | 17.7°C | 11.8°C | 5.9°C | 26.8°C | 0.4°C | 120 mm | 79% | 0.1 m/s | 5.4 |
| 1993 | 19.6°C | 13.7°C | 7.8°C | 26.6°C | 3.9°C | 38 mm | 77% | 0.1 m/s | 5.3 |
| 1992 | 18.7°C | 11.9°C | 5.1°C | 28.4°C | -3.1°C | 72 mm | 75% | 0.1 m/s | 6.1 |
| 1991 | 21.6°C | 15.4°C | 9.2°C | 27.7°C | 2.8°C | 87 mm | 78% | 0.1 m/s | 5.9 |
| 1990 | 16.1°C | 10.8°C | 5.4°C | 22.7°C | 1.7°C | 176 mm | 80% | 0.1 m/s | 4.8 |
| 1989 | 19.0°C | 13.4°C | 7.8°C | 27.5°C | 2.6°C | 167 mm | 82% | 0.1 m/s | 5 |
| 1988 | 18.8°C | 13.1°C | 7.5°C | 25.5°C | 2.1°C | 97 mm | 81% | 0.1 m/s | 4.9 |
| 1987 | 18.6°C | 12.5°C | 6.5°C | 28.6°C | -0.7°C | 38 mm | 80% | 0 m/s | 5.6 |
| 1986 | 19.7°C | 13.7°C | 7.7°C | 27.9°C | -1.9°C | 56 mm | 78% | 0.1 m/s | 5.7 |
| 1985 | 19.0°C | 13.0°C | 6.9°C | 27.2°C | -1.1°C | 96 mm | 75% | 0.1 m/s | 5.7 |
| 1984 🌧️ | 17.1°C | 11.7°C | 6.2°C | 25.2°C | 0.0°C | 268 mm | 82% | 0.1 m/s | 4.3 |
| 1983 | 17.2°C | 11.8°C | 6.3°C | 23.2°C | -0.5°C | 138 mm | 83% | 0.1 m/s | — |
| 1982 | 19.9°C | 13.9°C | 7.8°C | 26.5°C | 3.9°C | 66 mm | 79% | 0.1 m/s | — |
| 1981 | 19.9°C | 13.4°C | 6.9°C | 26.7°C | -0.1°C | 84 mm | 75% | 0.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 19°C with lows near 7.4°C (mean 13.2°C), based on 45 years of NASA POWER data.
May averages 100 mm of rainfall in Worcester, about average for rainfall. The wettest on record was 268 mm in 1984.
The hottest May reached 31.3°C in 2016. The coldest dipped to -3.1°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.2°C. Daytime highs moved from 18.6°C to 19.8°C and overnight lows from 6.8°C to 8.2°C over the same span.
May is one of the warmer months of the year in Worcester and about average for rainfall, so plan for around 19°C daytime highs and 7.4°C at night.
Not quite — May is the 8th coolest month in Worcester, averaging 13.2°C.
For May in Worcester, pack warm layers and a jacket for chilly mornings, with typical highs of 19°C and lows of 7.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 78% — quite humid.
Average wind speed in May is 0.1 m/s. The windiest May on record averaged 0.1 m/s (1981).
The wettest May on record was 1984 with 268 mm. On average, May sees 100 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 Worcester 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.
