Cool
Average highs are around 16°C, so pack for cooler days.
May verdict
Portsmouth, England, United Kingdom in May
Weather score33Poor
Poor for holiday weather
Average highs are around 16°C, so pack for cooler days. Sunshine averages 6.7h per day, enough for a balanced month. Rainfall averages 58mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
16°C
Rain
58mm
Sun
6.7h
Sea
12°C
Weather score
33
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 58mm, 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
Weather map
Compare Portsmouth, England, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May16°C average high
May is close to Portsmouth'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.
Rain
May58mm average rain
May sits near Portsmouth's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsFebruary to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May6.7 hours average sun
May is one of Portsmouth's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May12°C average sea
May is below Portsmouth's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to October
Sea temperatures are usually near 17°C in this stretch, so swimming comfort is at its strongest.
Weather score
May33 weather score
May sits close to Portsmouth'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.
