Cool
Average highs are around 18°C, so pack for cooler days.
June verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 6.5h per day, enough for a balanced month. Rainfall averages 78mm, which is relatively low for holiday planning.
Monthly averages
Temp
18°C
Rain
78mm
Sun
6.5h
Sea
14°C
Weather score
38
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Drier
Rainfall averages 78mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.5h per day, enough for a balanced month.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Compare Swansea, Wales, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
June18°C average high
June sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
June78mm average rain
June sits on the drier side of Swansea'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.
June6.5 hours average sun
June is one of Swansea'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.
June14°C average sea
June is close to Swansea's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 16°C in this stretch, so swimming comfort is at its strongest.
June38 weather score
June scores above Swansea's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.