June is early summer in the UK, which can (and often does) mean sunny and pleasant weather one day and a return to wet, chilly early spring weather the next. The average temperatures in summer range between 64°F and 69°F (18°C and 21°C), but this varies from Scotland's north to England's south. London ranges between 55°F-70°F (13°C-21°C), Edinburgh 48°F-63°F (9°C-17°C), Belfast 50°F-64°F (10°C-18°C), and Cardiff 54°F-68°F (12°C-20°C).
As always in the UK, prepare for changes in the weather. Having said that, you may experience lovely weather in June, and the long days compensate for dips in the temperature. June 21 is the summer solstice or the longest day of the year, and you can expect it not to get dark until after 10 pm or even later in the north of Scotland.
Crowds & Costs
June is the start of the busy summer season in the UK, although earlier in the month will be quieter at the most popular spots, and UK schools don't break for summer until July. Many local festivals and events throughout the country draw residents rather than many international travelers, so you may experience a different kind of busyness than in other parts of Europe.
Prices of accommodation, transport, and attractions don't vary much throughout the year. However, in the busier summer season, it's good to reserve hotels and long-distance transport in advance, as it books up.
Where to Go
The long coastline of the United Kingdom means there are many lovely beach towns to explore, whatever kind of beach vacation you're seeking. While June temperatures in the UK may not rival the Mediterranean, you can enjoy a great day at the beach throughout the UK. The town of Lyme Regis is at the heart of the Jurassic Coast, a UNESCO World Heritage site on England's south coast. As well as being geologically important, the town has a sheltered beach that's good for swimming.
West Wales also has attractive beaches beside cute towns. Tenby, Milford Haven, and the Pembrokeshire Coast National Park are highlights. Further, plenty of other outdoor activities can be enjoyed in the national park.
To experience Stonehenge, one of the UK's most famous and unusual attractions, at a significant time of year, visit during the summer solstice (June 21). The large circle of free-standing stones is believed to have been built to mark time and the seasons, and the longest day of the year is a meaningful time to gather and learn about ancient British culture. There are usually organized events and gatherings at Stonehenge at this time.
Chat with a local specialist who can help organize your trip.
What to Do
June is a great time to go hiking (just don't forget your rain gear). Wales and Scotland are home to some of the largest hills and peaks in the UK, but the rolling landscapes of England are ideal for travelers—such as families—who want something a bit more gentle. The Lake District and Yorkshire Dales National Park in northern England, the coast of Cornwall in southwest England, and the Peak District in central England are all great places to enjoy walking with stops at small villages.
Hiking is a great option in Northern Ireland as well. There's the Ulster Way, a 636-mile (1,024-km) series of routes that leads through mountains, forests, and lakes as well as offers views of breathtaking coastline. Try the Lough Bradan-Gortin or the Gortin-Moneyneany sections for some of the best vistas of the whole walk. Alternatively, now that the sea is warmer and calmer, partake in a kayaking excursion of the North Coast Sea Kayak Trail between Co. Londonderry and Co. Antrim, passing the Giant's Causeway.
Events in June
Hay Festival, Hay-on-Wye, Wales. This literature-focused event is held in the small town of Hay-on-Wye in Wales. It's one of the best-known literary events in the UK, despite the town's small size, and occurs from late May to June.
Bath Fringe Festival, Bath, England. This festival in the south-western English city showcases alternative music, dance, and theater, taking place toward the end of the month or early June.
Trooping of the Colour, London, England. On June 2 in London, this huge military parade marks the Queen's official (although not actual) birthday and is a favorite with tourists.
Isle of Wight Festival, Isle of Wight, England. The small island off the coast of Portsmouth in southern England hosts a huge music festival every year in mid-June. Get your tickets early.
Glastonbury Festival, Somerset, England. This multi-day music festival is one of the best-known in the UK and runs for several days in late June.
Royal Highland Show, Edinburgh, Scotland. This agricultural show in late June showcases Scottish-flavored food, farming, and rural lifestyles.
The Royal Regatta, Henley-on-Thames, England. This highlight of the summer sporting calendar is held at Henley-on-Thames, west of London, from June to July. Watch boat races and enjoy outdoor picnics, all while appropriately dressed.
Wimbledon, London, England. The oldest and one of the most prestigious tennis championships starts in late June.
Traveling to the UK in June? Check out these great itineraries
Discover the Scottish Highlands - 9 Days. Explore the mountainscapes of the Cairngorms and Ben Nevis, and take in the history and culture of Edinburgh, Scotland's capital.
Highlights of Wales and Southern England - 18 Days. Visit many delightful little towns, coastal promenades, medieval castles and churches, and other historic sites that encapsulate many visitors' most romantic ideas of Great Britain.
Hike the South Cornwall Coast - 9 Days. Lace-up your walking shoes and hike one of the most spectacular sections of the UK's long-distance South West Coast Path on this adventurous 9-day self-guided itinerary.
Northern Ireland Road Trip - 8 Days. Independent travelers will experience the magic of Northern Ireland on their terms with this self-guided road trip itinerary. Start with an informal walking tour of Dublin, then pick up your rental car and begin your adventure north to Northern Ireland.