Cool
Average highs are around 15°C, so pack for cooler days.
May verdict
Poor for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 6.7h per day, enough for a balanced month. Rainfall averages 79mm, which is relatively low for holiday planning.

Monthly averages
Temp
15°C
Rain
79mm
Sun
6.7h
Sea
12°C
Weather score
29
Poor
Cool
Average highs are around 15°C, so pack for cooler days.
Drier
Rainfall averages 79mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.7h per day, enough for a balanced month.
Cool sea
Sea temperatures average 12°C, so the water can feel cool.
Map
Compare Plymouth, England, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
May15°C average high
May is close to Plymouth's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
May79mm average rain
May is one of Plymouth's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsApril to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May6.7 hours average sun
May is one of Plymouth's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
May12°C average sea
May is close to Plymouth's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to October
Sea temperatures are usually near 16°C in this stretch, so swimming comfort is at its strongest.
May29 weather score
May sits close to Plymouth's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.