June typically marks the meteorological start of summer in Wales. Characteristically, this period offers a blend of sunshine and showers, with temperatures generally milder than later summer months. Average daily highs range from 15C to 19C (59F to 66F), while nighttime lows average between 9C and 12C (48F to 54F). Coastal regions often experience slightly cooler temperatures and higher winds than inland areas. Rainfall amounts vary across the country, but June is typically not the wettest month in Wales.
Understanding typical conditions for this time of year is valuable for planning various activities, from outdoor adventures like hiking and cycling in Snowdonia National Park and the Brecon Beacons to exploring the Welsh coastline or visiting historical sites like Caernarfon Castle. Favorable weather conditions coupled with lengthening daylight hours make June an attractive period for tourism and outdoor pursuits. Historically, June has been an important month for agriculture in Wales, with the weather playing a crucial role in the growth of crops and livestock.