When to Go

The short answer

For a first trip that mixes London with the countryside or Scotland, aim for the second half of May, June, or September. You get long days, gardens at their best or the first autumn color, and prices below the late-July-to-August peak, when British schools are out and everyone heads for the coast and the hills.

June has a special advantage for Americans: most US schools are already out, while schools in England and Wales stay in session until late July. That gives US families a window of near-summer weather before British families hit the road. Scotland's schools break earlier, in late June.

London itself has no bad season. Its museums, theaters and pubs work in any weather, and January to March brings the lowest hotel rates of the year. The Highlands and islands are different: they are best from May to September, and in midwinter you get only about six or seven hours of daylight there.

Weather by region

The UK has a maritime climate. The Atlantic keeps winters mild and summers cool, and the prevailing westerly winds bring most of the rain to the west side of the country. As a rule, the farther north and west you go, the cooler, wetter and windier it gets; the south and east are warmer, sunnier and drier.

London and the South East

The warmest and driest part of the UK. Summer highs average the mid-70s°F (around 24°C), and most summers now bring a few days above 86°F (30°C); the national record of about 104°F (40°C) was set in July 2022. That matters because many hotels, older homes and most of the deep Tube lines lack air conditioning. Winters average highs around 47°F (8°C), with frost on some nights and snow on only a few days, if any. See London and the South East.

The Southwest: Bath, Cornwall and Devon

The mildest winters in Britain, especially on the Cornish coast, where palms grow outdoors. It is wetter and windier than London, and Atlantic storms hit the coast hardest from October to March. Cornwall's beaches and lanes are jammed in August. See Cornwall and Devon and Bath.

The Midlands and the North of England

A couple of degrees cooler than London. The west side, from Manchester to the Lake District, is notably wet; the Lake District's fells are among the rainiest places in England, which is why the lakes are so full and green. York and the east are drier. The Yorkshire Dales and the Peak District can be raw and windy on the tops in any season. See York and the North and the Lake District.

Scotland

Edinburgh and the east coast are surprisingly dry, with rainfall closer to London's than to Glasgow's, though the wind off the North Sea can be sharp. Glasgow, the west Highlands and the islands get much more rain. Summer highs in Edinburgh average the mid-60s°F (about 19°C); a warm Highland day is 70°F (21°C). Weather in the mountains is a separate matter: Ben Nevis can have snow on the summit in June, and conditions change within an hour. See Edinburgh and the Highlands.

Wales

Cardiff and the south coast are mild. The mountains of Eryri (Snowdonia) catch a lot of rain and cloud, so the summit of Yr Wyddfa (Snowdon) is often in mist; have a backup plan for a clear-view day. Pembrokeshire is sunnier than inland. See Wales.

Northern Ireland

Mild, damp and often breezy, with weather much like the rest of Ireland. Summer highs are in the mid-60s°F (about 18–19°C). The Causeway Coast is spectacular in storms and bracing in any month. See Northern Ireland.

Daylight: short winter days, long June evenings

Britain sits far north. London is at about the same latitude as Calgary, and Edinburgh is at about the same latitude as Moscow. Daylight swings much more over the year than Americans are used to, and it shapes what you can do in a day more than temperature does.

In late June, it is still light enough to walk at 10:30 pm in Edinburgh, and in the far north of Scotland the sky never gets fully dark. In late December, Edinburgh's sun sets before 4 pm, and in Shetland the day lasts less than six hours.

The clocks change on different dates from the US

The UK moves to British Summer Time (BST, one hour ahead of GMT) on the last Sunday in March and back on the last Sunday in October. The US switches earlier in spring and later in autumn, so for a few weeks a year London is only four hours ahead of New York instead of five. In 2027, the US springs forward on March 14 and the UK on March 28; the UK falls back on October 31 and the US on November 7. Right now, in late October 2026, the UK has already changed (October 25) and the US changes on November 1. Double-check meeting and flight times in those weeks.

Rain: what to really expect

Britain's reputation for rain is half earned. London gets roughly 24 inches (about 600 mm) a year, about half of New York City's total and less than Seattle's. Edinburgh is only a little wetter. What London has is frequency: grey skies and light rain on many days, rather than big storms followed by clear spells.

The west is a different story. Glasgow gets roughly twice London's rainfall, and Fort William and the western Highlands, the Lake District fells and the mountains of Eryri get several times as much. In those places, plan on getting wet at some point and pick accommodation with a drying room or radiator for boots.

• Showers, not washouts. On most days, rain comes in bursts with dry spells between. A forecast of "light rain" in the morning often means a fine afternoon. Use the Met Office app or BBC Weather and check the hourly view.
• Spring is often driest. April to June tend to be drier and sunnier than late summer and autumn, especially in Scotland.
• Autumn and winter storms. From October to March, Atlantic storms (the Met Office names the big ones) bring gales and flooding, mostly in the west and north. Ferries to the islands are cancelled when seas are high, and trains on exposed lines can be suspended.
• Mountain forecasts are separate. For hikes on Ben Nevis, in Glencoe, the Lake District or on Yr Wyddfa, use a mountain forecast such as the Met Office's mountain pages or the Mountain Weather Information Service. See hiking safety.

Season by season

Spring (March to May)

Daffodils in March, bluebell woods and blossom in late April and May, lambs in every field. Days lengthen fast, and by late May it is light until after 9 pm. March can still be cold and gray; May is one of the best months in the whole year for both England and Scotland. Easter and the two-week school holidays around it bring crowds to the Cotswolds, the Lake District and Cornwall. Gardens open for the season, and the Chelsea Flower Show takes over part of London in late May.

Summer (June to August)

The longest days, the warmest weather, outdoor theater, festivals, county shows, Highland games and pub gardens. It is also peak season: hotels cost the most, popular sights need timed tickets, and roads in Cornwall, the Lake District and on Skye clog in August. June is the sweet spot. August belongs to Edinburgh's festivals and to British families on holiday, so book everything early. Heat waves are now regular, so if heat bothers you, ask hotels about air conditioning or fans.

Autumn (September to November)

September is the best-kept secret for Americans: the schools go back, crowds thin, the weather is often settled and warm, and the Highlands are past the worst of the midges. October brings autumn color in the woods of the Lake District, Perthshire, the Cotswolds and the Welsh valleys, though more rain and wind. Some seasonal attractions, boat trips and island ferries cut back from late October. November is quiet and cheap, with Bonfire Night fireworks on November 5 and Christmas markets opening by mid-month.

Winter (December to February)

Short days, mild-to-cold temperatures, and the lowest prices of the year from early January through February. London and Edinburgh are excellent winter cities: Christmas lights and markets, pantomime season, theater, museums and pubs with open fires. Edinburgh's Hogmanay is one of the world's big New Year parties. Snow is rare in London but regular in the Highlands, where roads such as the A9 and A82 can be affected and the Cairngorm, Glencoe and Nevis Range ski areas open when there is cover. Many stately homes and gardens close or open only on certain days from November to February.

Peak events that fill hotels

These are the dates when rooms sell out or prices jump in specific places. If your trip overlaps, book accommodation as early as you can, or stay a short train ride away. Full details on all of these are in festivals and events.

Other dates that fill specific places: Glastonbury Festival in Somerset, June 23–27, 2027 (2026 was a fallow year); Oxford and Cambridge graduations in summer; the Twelfth of July in Northern Ireland, when parades take over many towns and some businesses close; the National Eisteddfod of Wales in early August; and any bank holiday weekend on the coast or in the national parks.

UK school holidays 2026–2027

School holidays drive British travel demand, and with it prices for cottages, family hotels, flights to the regions and attractions such as the Harry Potter studio tour. Each local council or school sets its own dates, so they vary by a few days, but the pattern is predictable. The dates below are typical examples for the 2026–2027 school year.

• Northern Ireland schools usually finish at the end of June and go back at the start of September, with a short break around Halloween and a longer one at Easter.
• Private (independent) schools often break earlier and longer, especially at Christmas and Easter.
• Half-term weeks in October, February and late May are mini-peaks for London museums, family attractions and the countryside.
• Ireland, if you are combining trips, has its own calendar; secondary schools there finish in late May or early June.

Bank holidays 2026–2027 in the four nations

Bank holidays are the UK's public holidays. Each nation has its own list: England and Wales share one, while Scotland and Northern Ireland differ. When a holiday falls on a weekend, a "substitute day" is given on the next weekday. Banks and many offices close; most shops, pubs, restaurants and major attractions stay open in towns and cities, except on Christmas Day. Roads, trains and coast resorts are busiest over bank holiday weekends, and rail engineering works are often scheduled for them.

Earlier in 2026, the holidays were New Year's Day (January 1), Good Friday (April 3), Easter Monday (April 6, except Scotland), the early May and spring bank holidays (May 4 and May 25) and the summer bank holiday (August 3 in Scotland, August 31 elsewhere), plus January 2 in Scotland and March 17 and July 13 in Northern Ireland.

Midges and ticks in Scotland

The Highland midge is a tiny biting fly, smaller than a mosquito, that turns up in clouds on still, damp, overcast days. It is the single biggest summer nuisance in the west Highlands and islands, and Americans who have never met one tend to underestimate it. Bites itch for a day or two but carry no disease.

• Season: roughly late May to September, with the worst from June to August.
• Where: the west Highlands and islands are worst, especially near water, bracken and woodland: Skye, Glencoe, Fort William, the Great Glen, the west coast. Edinburgh, the east coast and windy hilltops are much better.
• When: dawn and dusk, and any time on calm, cloudy, humid days. A breeze of more than a few miles an hour or bright sunshine keeps them down.
• What works: a repellent sold in Scotland for midges (Smidge is the local favorite, and DEET or picaridin products work too), long sleeves, light-colored clothes, and a fine-mesh head net, sold in every outdoor shop in the Highlands for a few pounds. Choose a campsite with wind exposure and keep tent and car doors closed at dusk.
• Forecast: the Scottish midge forecast, published online from spring to autumn, uses traps and weather stations to predict levels by area. Plan your evening walks around it.

Ticks are the more serious issue. They live in long grass, bracken and heather across the Highlands, the Lake District, Exmoor, the New Forest and other rural areas, and some carry Lyme disease. Wear long pants tucked into socks on hikes, check yourself at the end of every day, and remove any tick promptly with a tick remover or fine tweezers. See a doctor if you develop a spreading rash or flu-like symptoms after you get home. See health and the outdoors.

What closes off-season

Cities run year-round. In the countryside and islands, plenty shuts or shrinks from November to March, so check before you plan a winter route.

• Stately homes and gardens: many National Trust, English Heritage and private houses close for winter or open only on weekends and special Christmas events. See heritage sites.
• The Jacobite steam train: the Fort William to Mallaig steam service is seasonal; in 2026 it ran from June 1 to October 23. Check the operator's 2027 dates and book as soon as they are released.
• Island ferries and boat trips: timetables thin out in winter and sailings are cancelled in bad weather. Wildlife boat trips (puffins, whales, seals) are mostly April to September.
• Mountain railways: the Snowdon Mountain Railway runs seasonally and may not go to the summit early or late in the year.
• Rural B&Bs, cafes and some Highland hotels: many close from November to Easter, especially on the North Coast 500 and the islands. Book ahead and phone if in doubt.
• Historic sites: Historic Environment Scotland, Cadw and English Heritage keep most major castles open year-round with shorter winter hours, while smaller sites may close. Check each one.

Month by month

Temperatures are typical average daily highs and lows. Daylight is for the middle of the month. Crowds and prices are for the country as a whole; London and Edinburgh have their own peaks.

Inland temperatures run a few degrees colder at night than these city figures, and the Highlands and the hills are colder still. Add a fleece for any trip outside the cities, even in July.

Picking your month by trip type

• First trip, London plus countryside: late May, June or September.
• Scottish Highlands and Skye: May, June or September. July and August are fine with bookings made early and a head net.
• London on a budget: January to early March, avoiding half-term week.
• Gardens: May and June; for bluebells, late April to mid-May.
• Hiking: May to September; September for clearer, cooler days. See the outdoors.
• Families: June, before English schools break, gives you summer without peak prices. See family travel.
• Festivals: August for Edinburgh, late June for the big music weekends, December for markets and Hogmanay. See festivals.
• Football: mid-August to late May. See sports.

Once you have picked dates, go to planning your trip for what to book first, and to where to stay for booking windows.