Obsessing over the weather forecast for the British Open typically lands somewhere between absolutely necessary and completely useless. The 2025 tournament at Royal Portrush is no different.
No tournament, especially among the four majors, is more affected by weather than The Open Championship. That’s just a fact of life when you’re island hoping in the United Kingdom in the middle of summer every year. The elements are going to play a role.
So, if you’re betting or playing DFS or just want to figure out the best times to watch the most entertaining golf, it’s important to know what’s in store from a weather perspective.
The only problem? The forecast can change at the drop of a Tam o’Shanter.
But when you have to make bets or lineup decisions before balls go in the air, you do what you can.
Looking ahead to the first and second rounds of the British Open at Royal Portrush, the forecast is on-brand. Sunshine is going to be hard to come by, there will almost certainly be some precipitation on one if not both days, and the wind will be ever-present.
Here’s the WindFinder.com forecast:

WindFinder
The draw advantage, as slight or unpredictable as it may be, is clear: Players who tee off Thursday morning and Friday afternoon should be on the better side of things. Granted, the impact of rain on Thursday afternoon is slightly overstated, going off around lunchtime will be playing into the worst of it. Then, on Friday, the wind will have almost completely died down with even the sun perhaps making an appearance in the afternoon.
DFS players looking to build lineups leaning heavy into the splits undoubtedly will have this group of proven players circled.
(All tee times local.)
8:25 a.m.: Patrick Cantlay, Cameron Young, Mackenzie Hughes
9:25 a.m.: Hideki Matsuyama, Ryan Fox, Matt Fitzpatrick
9:36 a.m.: Sepp Straka, Ben Griffin, Akshay Bhatia
9:47 a.m.: Sam Burns, Aldrich Potgieter, Brooks Koepka
9:58 a.m.: Xander Schauffele, J.J. Spaun, Jon Rahm
10:09 a.m.: Shane Lowry, Collin Morikawa, Scottie Scheffler
Those final two groups, presumably the morning’s top featured groups for broadcast purposes, might be right on the line of the split. If the forecast holds, their front nine should be calm, and it could pick up as the day progresses. They’ll also likely have a chance to do some scoring in Round 2 with their tee times corralling the 3 p.m. slot.
Assuming the weather takes a turn for the worst around 1 p.m. local in Round 1, that will present challenges for the second wave. Team USA Ryder Cup captain Keegan Bradley is part of a group that goes off at 1:26 p.m. on top of a Friday morning 8:25 a.m. tee time.
The afternoon starpower gets to the first tee at 2:26 p.m. with the group of Brian Harman, Maverick McNealy and Joaquin Niemann. From there, these groups might have to deal with the elements.
2:37 p.m.: Russell Henley, Tyrrell Hatton, Min Woo Lee
2:48 p.m.: Robert MacIntyre, Bryson DeChambeau, Justin Rose
2:59 p.m.: Jordan Spieth, Ludvig Aberg, Viktor Hovland
3:10 p.m.: Rory McIlroy, Justin Thomas, Tommy Fleetwood
Those groups will be hoping the weather has settled some by the time they take their mid-morning tee times in Round 2.
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