Surf Forecasts:
Back Strands surf forecast from 16 Sep 2026:
- Best quality surf: Sunday 20 Sep, 4PM (local time) - 7ft (2.1m), 12s period, WNW swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 7PM (local time) - 13ft (4.0m), 15s period, WNW swell with 6,541 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 4PM (local time) - 7ft (2.1m), 12s period with WNW swell.
Best Forecast Surf Conditions for Back Strands this week:
The surf forecast for Back Strands over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 4PM. The primary swell is predicted to be 2.1m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Back Strands in the next 16 days are 4.0m 15s 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 1AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Sun 20th Sep) | 7ft (2.1m) 12s |
| Best Surf | 4PM (Sun 20th Sep) | 7ft (2.1m) 12s |
| Most Powerful | 7PM (Thu 17th Sep) | 13ft (4.0m) 15s |
Table - best surf conditions forecast for Back Strands over the next 16 days.
Short Range ForecastModerate rain (total 19mm), heaviest on Fri morning. Very mild (max 16°C on Fri afternoon, min 12°C on Fri morning). Winds decreasing (strong winds from the W on Wed night, moderate winds from the S by Fri morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Mon morning, min 12°C on Sun morning). Winds decreasing (fresh winds from the W on Sat afternoon, calm by Tue morning). | |||||||||||||||||||
Wed 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||
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 10 | W 9 | W 11 | WNW 14 | WNW 14 | W 13 | W 12 | W 11 | W 11 | W 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | W 10 | W 12 | W 15 | W 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 434 | 699 | 2984 | 5682 | 4561 | 2287 | 1610 | 1235 | 1386 | 1768 | 2089 | 1569 | 1180 | 680 | 462 | 292 | 239 | 454 | 662 | 1036 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | cross-on | cross-off | cross | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | off |
High Tide | 9:44PM2.87m | 10:03AM2.85m | 10:23PM2.55m | 10:49AM2.61m | 11:18PM2.28m | 12:00PM2.41m | 00:50AM2.11m | 1:47PM2.37m | 2:42AM2.15m | 3:16PM2.54m | 3:52AM2.34m | 4:09PM2.80m | ||||||||
Low Tide | 3:40AM0.79m | 4:07PM0.93m | 4:17AM1.07m | 5:00PM1.22m | 5:11AM1.31m | 6:32PM1.42m | 6:54AM1.45m | 8:43PM1.39m | 8:47AM1.35m | 9:52PM1.17m | 9:48AM1.13m | 10:34PM0.91m | ||||||||
 |  |  |  |  |  |  | |  | | | | | | | |  | | |  | |
 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:16 | — | — | 7:18 | — | — |
 | 7:49 | — | — | 7:45 | — | — | 7:44 | — | — | 7:40 | — | — | 7:38 | — | — | 7:36 | — | — | 7:34 | — |
mm | — | 5 | 2 | — | — | 8 | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 13 | 14 | 14 | 15 | 16 | 16 | 14 | 14 | 13 | 12 | 13 | 17 | 19 | 19 | 19 | 16 | 18 | 18 |
Feels °C | 8 | 7 | 3 | 5 | 6 | 11 | 10 | 10 | 7 | 7 | 5 | 9 | 10 | 16 | 19 | 19 | 18 | 16 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | W 10 | — | — | — | — | W 13 | — | — | — | — | — | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | W 10 | W 12 | W 15 | W 14 |
| kJ | 434 | — | — | — | — | 2287 | — | — | — | — | — | 1569 | 1180 | 680 | 462 | 292 | 239 | 454 | 662 | 1036 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 18 | W 11 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 158 | 267 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | W 9 | W 11 | WNW 14 | WNW 14 | — | W 12 | W 11 | W 11 | W 11 | WNW 12 | — | — | SSW 3 | — | — | — | — | — | — |
| kJ | — | 699 | 2984 | 5682 | 4561 | — | 1610 | 1235 | 1386 | 1768 | 2089 | — | — | 3 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 396 | 145 | 456 | 457 | 722 | 265 | 127 | 145 | 721 | 292 | 265 | 265 | 27 | 0 | 3 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Sligo | ||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Back Strands surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Back Strands Surf forecast
The above surf forecast table for Back Strands provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Back Strands can be found by selecting the local surf guide option on the grey menu. Our Back Strands 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 (Back Strands) 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 Back Strands 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 Back Strands, camping, hotels and holiday cottages in Sligo, consider staying in Sligo which is 19 km (12 miles) away. Other places in and around Sligo where you can find information about places to rent, and car hire include Killybegs which is 21 km (13 miles) away, Enniskillen, Ballina and Letterkenny.
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