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Surf Forecasts:
Strandhill surf forecast from 16 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 6,365 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 0.8m 4s period and expected on Wednesday (Sep 16) at 7PM.
| 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
Right, grab a cuppa, let's have a look at what’s coming for Strandhill. It’s a bit of a mixed bag over the next couple of weeks, but there are some proper windows of clean, solid surf if you’re willing to wait out the slop.
The first few days are a write-off, to be honest. Wednesday the 16th and Thursday the 17th are blown out with strong cross-onshore winds and messy, poor surf. Swell sizes are up there – 12ft to 13ft – but the wind is trashing it. The wave energy is strong (2691) but it’s not for paddling; it’s more of a kite-surfing zoo.
Things start to look up on Friday morning the 18th. The swell drops to a still-chunky 8ft from the WNW with a long 13-second period, and the wind swings cross-offshore. The water temp is about average for this time of year. It’s clean, but the wave energy is still moderate (2323), and it’s a bit heavy for beginners.
The first true standout comes on the morning of Sunday the 20th. We’ve got a 7ft WNW groundswell with a 12-second interval, light cross-offshore winds from the SSW, and clean conditions. The combined energy is moderate (1230) but the quality is excellent. This is for experienced surfers – that size and power will be proper. The crowds at Strandhill can be there sometimes, so get in early.
Then, Tuesday the 22nd is a real gem. The morning starts with a 3ft swell from the west, but the period is a massive 17 seconds – that’s proper low-frequency groundswell. The afternoon is even better: glassy, with the wind dropping to zero. Swell picks up to 6ft from the west with a 16-second period, giving a strong energy reading (1757). The conditions are described as glassy. This will be clean, lined-up waves, best on a point or reef, but at Strandhill's beach setup, it might be a bit straight. Still, that is the best-looking window of the whole forecast.
The following week tails off. Wednesday the 23rd stays good with offshore winds and a 5ft, 13-second swell. The water temp is average for the season. After that, it drops into very small, ordinary conditions through the end of September and into October. There’s a brief pulse on the morning of Sunday the 27th: a glassy 6ft, 14-second swell with moderate energy (1033), which is worth a look, but the wind goes onshore in the afternoon.
Overall, the clear standouts are Sunday the 20th and Tuesday the 22nd. The rest is either blown out or too small. Don’t sleep on that Tuesday glass-off.
Rusty
Short Range ForecastModerate rain (total 14mm), heaviest on Wed night. Very mild (max 16°C on Fri afternoon, min 12°C on Wed night). Winds increasing (light winds from the W on Wed morning, strong winds from the W by Thu morning). | Days 4-6 Weather SummarySome drizzle, heaviest during Fri night. Warm (max 20°C on Mon afternoon, min 11°C on Sun morning). Winds decreasing (fresh winds from the W on Sat morning, light winds from the SW by Sat night). | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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 11 | W 10 | W 9 | W 11 | WNW 13 | WNW 14 | WNW 13 | W 12 | W 11 | W 10 | W 11 | WNW 12 | WNW 12 | WNW 12 | W 12 | WNW 11 | W 10 | W 10 | W 17 | W 16 | W 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 657 | 434 | 676 | 2691 | 5369 | 4822 | 2323 | 1519 | 1212 | 1087 | 1657 | 1879 | 1230 | 1054 | 723 | 438 | 270 | 361 | 610 | 1569 | 1594 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | off |
High Tide | 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 | 4:09PM2.79m | ||||||||
Low Tide | 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 | 9:48AM1.13m | 10:34PM0.91m | ||||||||
 | |  |  |  |  |  | | | | | |  | | |  | |  | | | | |
 | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — |
 | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — | — | 7:42 | — | — | 7:38 | — | — | 7:37 | — | — | 7:34 | — |
mm | — | — | 3 | 1 | 1 | — | 6 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 15 | 13 | 14 | 13 | 14 | 16 | 16 | 15 | 15 | 13 | 14 | 17 | 17 | 18 | 20 | 18 | 17 | 19 | 17 |
Feels °C | 9 | 10 | 11 | 5 | 7 | 7 | 9 | 12 | 12 | 9 | 10 | 10 | 11 | 15 | 17 | 18 | 20 | 17 | 17 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | W 11 | W 10 | — | — | — | — | WNW 13 | — | — | — | — | — | WNW 12 | WNW 12 | W 12 | WNW 11 | W 10 | W 10 | W 11 | W 16 | W 14 |
| kJ | 657 | 434 | — | — | — | — | 2323 | — | — | — | — | — | 1230 | 1054 | 723 | 438 | 270 | 361 | 372 | 1569 | 1594 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 21 | W 17 | W 10 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 610 | 188 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | W 9 | W 11 | WNW 13 | WNW 14 | — | W 12 | W 11 | W 10 | W 11 | WNW 12 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 676 | 2691 | 5369 | 4822 | — | 1519 | 1212 | 1087 | 1657 | 1879 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 286 | 164 | 466 | 470 | 708 | 243 | 148 | 148 | 703 | 243 | 243 | 243 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Sligo | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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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.
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