Cool
Average highs are around 12°C, so pack for cooler days.
May verdict
Lewis, United Kingdom in May
Weather score24Poor
Poor for holiday weather
Average highs are around 12°C, so pack for cooler days. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 77mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
12°C
Rain
77mm
Sun
5.9h
Sea
9°C
Weather score
24
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 77mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 9°C, so the water can feel cool.
Map
Weather map
Compare Lewis, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May12°C average high
May is close to Lewis' 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
May77mm average rain
May is one of Lewis' driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsFebruary and April to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May5.9 hours average sun
May is one of Lewis' sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to June
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May9°C average sea
May is below Lewis' yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to October
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
Weather score
May24 weather score
May is one of Lewis' best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.
