Cool
Average highs are around 13°C, so pack for cooler days.
May verdict
Poor for holiday weather
Average highs are around 13°C, so pack for cooler days. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 89mm, so some wet days are possible.
Monthly averages
Temp
13°C
Rain
89mm
Sun
5.9h
Sea
10°C
Weather score
24
Poor
Cool
Average highs are around 13°C, so pack for cooler days.
Showers
Rainfall averages 89mm, so some wet days are possible.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 10°C, so the water can feel cool.
Map
Compare Isle of Arran, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
May13°C average high
May is close to Isle of Arran'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.
May89mm average rain
May is one of Isle of Arran's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsFebruary and April to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May5.9 hours average sun
May is one of Isle of Arran's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
May10°C average sea
May is close to Isle of Arran's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJune to September
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
May24 weather score
May scores above Isle of Arran's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.