Truro weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Poor
Best time to visit: May – September
What is the weather like in Truro in May?
In May, Truro is cool: daytime highs average 15 °C, and nights cool down to about 9 °C. The sea averages 12.0 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 58 mm in total. All in all, May is not an ideal month for a holiday in Truro.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 15 h 24 min05:34 – 20:58
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 66 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/London
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %67 %
- Few rainy daysweight 20 %46 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in May
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Truro in May: quick answers
Is Truro hot in May?
No. In May, Truro is cool: daytime highs average 15 °C and nights drop to about 9 °C.
Can you swim in Truro in May?
Only if you don't mind cold water: in May the sea averages just 12.0 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Truro in May?
Rain is frequent, with about 12 rainy days and 58 mm in total.
Truro month by month
The whole year in TruroAll destinations: United KingdomWhere to go in MaySea temperature in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences