
Surf Forecasts:
Strandhill surf forecast from 15 Sep 2026:
- Best quality surf: Friday 18 Sep, 4AM (local time) - 10ft (3.0m), 13s period, WNW swell with cross-shore winds.
- Most powerful swell: Thursday 17 Sep, 7PM (local time) - 13ft (4.0m), 14s period, WNW swell with 6,452 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 4AM (local time) - 10ft (3.0m), 13s period with WNW swell.
Best Forecast Surf Conditions for Strandhill this week:
The surf forecast for Strandhill over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 4AM. The primary swell is predicted to be 3.0m and 13s period. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Strandhill in the next 16 days are 4.0m 14s and forecast to arrive on Thursday (Sep 17) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Sep 21) at 1PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 18th Sep) | 10ft (3.0m) 13s |
| Best Surf | 4AM (Fri 18th Sep) | 10ft (3.0m) 13s |
| Most Powerful | 7PM (Thu 17th Sep) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Strandhill over the next 16 days.
The Lowdown
Alright, listen up. The first few days are a bit of a washout, but there’s some proper swell coming through the back half of the window that’s got some serious potential. You just gotta be patient.
Tuesday the 15th – forget it. Fresh cross-onshore winds, lumpy, short-period swell around 6 feet, and the energy is weak. Water temp is 60.3°F, which is a touch warmer than usual for this time of year. Not worth the paddle.
Wednesday the 16th stays poor. Choppy, cross-onshore, waves around 5-6 feet but with moderate energy. Nothing to write home about.
Thursday the 17th is when it gets heavy, but it’s messy. Swell jumps to 10-13 feet with strong cross-onshore winds. Energy is strong to very strong. This is not a day for the average surfer. Only the most experienced locals should even think about it, and even then, it’s going to be a grind.
Friday the 18th gives you a bit of a break. Swell drops to 8 feet, wind swings cross-offshore in the morning, making it clean. Energy is still strong. This is a day for the experienced crew only. The morning is your window before the afternoon gets a bit cross-shore.
Saturday the 19th – back to poor. Cross-onshore, choppy, 6-foot slop. Not worth your time.
Sunday the 20th is the turnaround. Light cross-offshore winds, clean, and a solid 6-foot W-NW swell with an 11-second period. Moderate energy. This is a proper surf day. Clean lines, good shape. The crowd might be out, but it’s worth it.
Monday the 21st keeps it clean. Light cross-offshores, 4-5 foot waves, moderate energy. Smaller, but still fun.
Now, Tuesday the 22nd – this is a standout. Light offshore winds, 6-foot swell with a long 16-second period, and strong energy. This is real groundswell, with serious push. The long period might make it wall up a bit at the beach breaks, but at Strandhill, this is going to be on. This is for experienced surfers only. Clean, powerful, and the wind is slight. This is the one to circle on the calendar.
Wednesday the 23rd stays excellent. Offshore winds, 6-7 foot swell, 13-second period, strong energy. Clean, lined up, and consistent. Another standout morning.
Thursday the 24th eases off. Waves drop to 4 feet, still offshore, but smaller. Weak energy. Good for a log, but nothing exciting.
Friday the 25th is a mixed bag. Morning has clean offshore conditions with 3-4 foot waves. The afternoon, though, the swell jumps to 8 feet with a very long 16-second period and strong energy. But tide and wind are questionable, so it’s marginal. If it lines up, could be epic, but it’s a gamble.
Saturday the 26th – another standout. Gentle offshore winds in the morning, 7-8 foot swell, 14-second period, strong energy. Big, clean, powerful. Only for experienced surfers. The afternoon has light rain and onshore winds, so get out early.
Sunday the 27th drops off. 4-5 foot waves, light offshore winds, clean but weak energy. Still surfable, just not thrilling.
Monday the 28th – the big one. Swell is predicted at 11-12 feet with an 11-second period, and energy is very strong. Offshore winds in the morning, going glassy in the afternoon. But here’s the thing: the swell is too big for this break. This is expert-only, and even then, it’s risky. The break might be closing out or just too menacing. If you’re not a charger, stay on the sand. This is for the camera, not the board.
Tuesday the 29th settles down to 7 feet with offshore winds, moderate-to-strong energy. Clean and good for experienced surfers.
Wednesday the 30th fades out. 4-5 foot waves with fresh offshore winds, but the period drops and energy is back to moderate. Clean, but the swell is fading. A mellow end to the window.
So, the standouts are Tuesday the 22nd, Wednesday the 23rd, and Saturday the 26th. That’s where the magic is. Monday the 28th is huge but dangerous, so give it a wide berth unless you
Short Range ForecastLight rain (total 8mm), mostly falling on Wed night. Very mild (max 15°C on Tue afternoon, min 11°C on Thu night). Winds decreasing (strong winds from the W on Thu morning, light winds from the SSW by Thu night). | Days 4-6 Weather SummarySome drizzle, heaviest during Fri night. Very mild (max 17°C on Fri afternoon, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | W 7 | W 9 | WNW 12 | W 11 | W 10 | W 9 | W 11 | WNW 13 | WNW 14 | WNW 13 | W 12 | W 11 | W 10 | W 10 | WNW 11 | WNW 11 | W 12 | W 12 | W 11 | W 10 | W 12 |
Wave Graph | |||||||||||||||||||||
351 | 397 | 928 | 657 | 434 | 627 | 2234 | 5131 | 4382 | 2157 | 1290 | 776 | 643 | 740 | 878 | 866 | 773 | 711 | 441 | 426 | 526 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 9:09PM3.18m | 9:26AM3.07m | 9:44PM2.87m | 10:03AM2.85m | 10:24PM2.56m | 10:49AM2.62m | 11:18PM2.29m | 12:00PM2.43m | 00:50AM2.12m | 1:47PM2.38m | 2:42AM2.15m | 3:16PM2.54m | 3:52AM2.33m | ||||||||
Low Tide | 2:50PM0.40m | 3:08AM0.53m | 3:27PM0.66m | 3:40AM0.81m | 4:07PM0.95m | 4:17AM1.09m | 5:00PM1.24m | 5:11AM1.33m | 6:33PM1.44m | 6:54AM1.46m | 8:43PM1.40m | 8:47AM1.36m | 9:53PM1.18m | ||||||||
7:05 | — | — | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | |
— | 7:52 | — | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — | — | 7:42 | — | — | 7:38 | — | — | 7:37 | — | |
mm | 3 | — | — | — | — | 3 | 1 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 13 | 14 | 15 | 15 | 13 | 13 | 12 | 14 | 17 | 16 | 15 | 15 | 12 | 15 | 17 | 17 | 19 | 20 | 18 |
Feels °C | 9 | 10 | 7 | 10 | 10 | 10 | 5 | 5 | 7 | 10 | 15 | 13 | 9 | 10 | 8 | 13 | 15 | 17 | 19 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | — | NW 11 | — | — | W 10 | — | — | — | — | WNW 13 | — | W 11 | — | — | WNW 11 | WNW 11 | W 12 | W 12 | W 11 | W 10 | W 12 |
— | 5 | — | — | 434 | — | — | — | — | 2157 | — | 776 | — | — | 878 | 866 | 773 | 711 | 441 | 426 | 526 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 19 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 30 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | W 7 | W 9 | WNW 12 | W 11 | — | W 9 | W 11 | WNW 13 | WNW 14 | — | W 12 | — | W 10 | W 10 | — | — | — | — | — | — | — |
351 | 397 | 928 | 657 | — | 627 | 2234 | 5131 | 4382 | — | 1290 | — | 643 | 740 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 534 | 782 | 391 | 243 | 164 | 466 | 469 | 712 | 391 | 8 | 148 | 41 | 243 | 243 | 39 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Sligo | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Strandhill Surf forecast
The above surf forecast table for Strandhill provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Strandhill can be found by selecting the local surf guide option on the grey menu. Our Strandhill surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Strandhill) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Strandhill may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Sligo? If you are looking for accommodation near Strandhill, camping, hotels and holiday cottages in Sligo, consider staying in Sligo which is 9 km (6 miles) away. Other places in and around Sligo where you can find information about places to rent, and car hire include Ballina which is 40 km (25 miles) away, Killybegs, Enniskillen and Claremorris.










