Cool
Average highs are around 18°C, so pack for cooler days.
Weather Guide
Bardsey Island, United Kingdom Average Monthly Weather
Weather score23Poor annual avg
Best months: July, June, August
Across the year, average daytime temperatures are around 13°C, sunshine averages 4.1h per day, and rainfall totals about 1198mm. Sea temperatures average 12°C across the year.
Annual weather
Annual averages
Temp
13°C
Rain
1198mm
Annual total
Sun
4.1h
Sea
12°C
Weather score
23
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 76mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Weather map
Compare Bardsey Island, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July18°C average high
July is one of Bardsey Island's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
July76mm average rain
July sits on the drier side of Bardsey Island's year, which helps with sightseeing and transfers.
Driest monthsFebruary to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July6 hours average sun
July is brighter than Bardsey Island's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July14°C average sea
July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to October
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
Weather score
July39 weather score
July is one of Bardsey Island's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
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