The Open 2026 Weather: What to Expect at Royal Birkdale from 16 to 19 July

In 2008, Padraig Harrington won The Open at Royal Birkdale with a score of three over par. Not three under. Three over, and it was enough to lift the Claret Jug, because the wind and squally rain off the Irish Sea spent four days shredding the best golfers in the world. That is the thing about an Open on the Southport coast: the weather is not the backdrop, it is the main character. The 154th Open returns to Royal Birkdale from Thursday 16 to Sunday 19 July 2026, with practice days from Sunday 12 July, and if you are one of the huge crowds heading for the dunes, the forecast deserves as much attention as your tee-time tickets.

This guide covers the confirmed 2026 dates, what mid July on the Merseyside coast typically serves up, what Birkdale Opens have actually done, and how to pack for a course where the sea breeze can turn a warm afternoon cold in twenty minutes.

When Is The Open 2026?

The official Open Championship site confirms the 154th Open takes place at Royal Birkdale Golf Club in Southport, the 11th time the club has hosted.

Royal Birkdale sits among the sandhills between Southport and Ainsdale on the northwest coast, around 17 miles north of Liverpool. Gates open early, play runs from dawn until into the evening, and a typical spectator day is eight to eleven hours outdoors in terrain with almost no built shelter.

St Swithin's Day Falls on Final Practice Day

Here is a quirk of the 2026 calendar: Wednesday 15 July, the final practice day, is St Swithin's Day. The old folklore says that whatever the weather does on 15 July, it will keep doing for 40 days, which would carry right through the Championship and most of the school summer holidays.

Before you panic-buy waterproofs based on a ninth-century bishop, the Met Office has checked. Since records began in 1861 there has never been a run of 40 consecutive wet or dry days following St Swithin's Day. There is a small grain of truth buried in the myth: by mid July the jet stream often settles into a pattern that holds roughly steady for several weeks. So the weather type around Open week is a decent, though far from perfect, hint at the rest of the summer. Treat it as a curiosity, not a forecast.

Why Links Weather Is Different

Royal Birkdale is a true links course: sand dunes, wiry grass and nothing between the fairways and the Irish Sea but a beach. That geography drives three effects that matter to spectators as much as players.

• The wind rarely rests. Coastal Southport is breezier than inland Lancashire on almost any day. A 15mph inland breeze is often 20 to 25mph on the links, and the exposed spectator mounds catch all of it.
• The sea breeze flips the afternoon. On sunny days the land heats faster than the sea, and by early afternoon a cool onshore breeze can knock a pleasant 22C down to a feels-like in the mid teens. Locals carry a jumper in July for exactly this reason.
• Showers arrive with little warning. Weather off the Irish Sea reaches Birkdale first, before any town on the radar app registers it. Squally showers can cross the course in fifteen minutes, soak everything, and be gone.

The upside of the coast is real too: the sea moderates extremes, so Southport is rarely as hot as inland England during a heatwave and rarely as cold on a grey day.

Typical Mid July Weather in Southport

Mid July is peak British summer, but the coast runs a couple of degrees cooler than inland. Baselines from Met Office climate averages for the northwest coast look like this.

The realistic Open day at Birkdale is 19C, a mix of sunshine and cloud, a fresh westerly breeze, and a real chance of at least one passing shower. In the sun and out of the wind that feels lovely. On an exposed grandstand with the breeze up, it feels like April.

What Birkdale Opens Have Actually Done

Royal Birkdale has hosted ten Opens, and the last two tell you everything about the range.

• 2017: Mixed, and a lesson in how fast links weather swings. Friday brought heavy rain and wind that sent scores soaring, then Saturday dawned calm and soft, and Branden Grace shot 62, the lowest single round in men's major history. Jordan Spieth lifted the jug on a bright Sunday.
• 2008: Brutal. Wind gusting off the sea all week, squally rain, temperatures well below the July norm, and Padraig Harrington winning on three over par, one of the highest winning totals of the modern era.

The wider recent record of The Open says the same thing. Hoylake 2023 finished in a soaking final round, Troon 2024 delivered a wet, wild Saturday, and Portrush 2025 mixed sunshine with passing showers all week. Open week finds rain somewhere more often than not, and the coast makes sure you feel every knot of wind.

A Day-by-Day Weather Read

Practice days, 12 to 15 July

Practice days are long, relaxed and the best value for weather flexibility: if a wet day is forecast, crowds thin and you can pick your moment. Expect 18 to 21C with a moderate sea breeze. And keep half an eye on St Swithin's Day on the Wednesday, purely for the pub conversation.

Thursday 16 and Friday 17 July

The first groups are out shortly after 6.30am, when coastal air is at its coolest, often 13 or 14C. Early spectators need a warm layer they can shed by late morning. Afternoon highs of 18 to 21C are typical, with the sea breeze freshening after lunch.

Saturday 18 July

Moving day means bigger crowds and longer stays in one spot, usually a grandstand. Sitting still in a sea breeze is much colder than walking the dunes, so this is the day the windproof earns its place, whatever the headline temperature says.

Sunday 19 July

The final round runs into early evening, and by 7pm the coastal air cools quickly even after a warm afternoon. If you are staying for the presentation on the 18th green, pack for a 15C evening breeze, not the 3pm sunshine.

How the Weather Changes the Day

Wind

Wind is the defining Birkdale variable. Above about 20mph, umbrellas become a liability on the dunes, caps need a tight fit, and the feels-like drops several degrees. For the golf, wind is a feature, not a bug: scoring gets harder and the leaderboard livelier. Play only stops in the rare case that balls will not stay still on the greens.

Rain

Showers off the Irish Sea are usually brief but intense. Play continues in ordinary rain; it stops only for lightning or standing water on the greens. A hooded waterproof beats an umbrella here, both for the wind and for the sightlines of everyone stood behind you.

Sunshine

A hot spell is entirely possible in mid July, and a sunny links is a sun-trap with zero shade. The dunes block the breeze in places, the sand reflects light, and spectators burn faster than they expect at 19C. Sun cream is not optional at a links Open, even under broken cloud.

What to Pack for Royal Birkdale

Links weather punishes anyone who packs for a single scenario, so cover both tails.

• A windproof, hooded waterproof jacket. The single most important item, whatever the forecast says.
• Layers, not one thick coat. A 6.30am start, a warm noon and a breezy evening can span 10 degrees.
• Sun cream and a cap. Coastal light plus reflective sand burns quickly, even on cloudy-bright days.
• Comfortable waterproof footwear. A spectator day at Birkdale is several miles of walking on sandy paths and grass that holds the morning dew.
• A refillable water bottle and a portable charger. The charger doubles as insurance for the live radar checks that matter more on the coast than anywhere.

Frequently Asked Questions

Does The Open stop for rain?

Not for ordinary rain. Play is suspended only for lightning, standing water on greens, or wind strong enough that balls will not stay at rest. Expect play to continue through the kind of passing showers that mid July on the coast routinely produces.

How cold does it get at Royal Birkdale in July?

Early mornings on the coast are often 13 to 14C, and a fresh onshore breeze can make a 19C afternoon feel like the mid teens, especially sitting still in a grandstand. Evening sessions cool quickly after 6pm. A warm layer is essential even in a settled week.

Is there any shade or shelter on the course?

Very little. A links course has no trees, and shelter comes down to grandstands, hospitality structures and the lee of the dunes. On a hot day sun protection is essential, and in rain a hooded waterproof is worth far more than an umbrella in the wind.

What is the St Swithin's Day legend?

Folklore says the weather on 15 July, St Swithin's Day, sets the pattern for the next 40 days. Met Office records going back to 1861 show it has never actually happened, though mid July jet stream patterns do often persist for a few weeks, which is the grain of truth behind the myth.

What other big events share the same weather window?

Wimbledon finishes on 12 July, the same day Open practice begins, and the school summer holidays start across England and Wales the following week. The Open sits right in the warmest stretch of the British year, which is also peak season for thundery breakdowns; our how accurate are weather forecasts guide covers how far out you can trust the Open week outlook.

The Bottom Line

Mid July on the Southport coast tilts pleasant: 18 to 20C, decent sunshine and sea air. But Royal Birkdale's Open history runs from Harrington's three-over slugfest in the 2008 gales to a record 62 in the 2017 calm, sometimes with both extremes inside one week. Pack a windproof waterproof whatever the forecast, layer for a 10-degree daily swing, respect the sun on a shadeless links, and check the radar before the walk from the park-and-ride. Heading for the dunes between 16 and 19 July and wondering about that one question that decides the whole kit bag? Do I need a brolly? Get an instant plain-English answer for Southport or any UK town at doineedabrolly.co.uk.