Surf Forecasts:
Lighthouse surf forecast from 18 Sep 2026:
- Best quality surf: Wednesday 23 Sep, 1PM (local time) - 7ft (2.2m), 13s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 25 Sep, 1PM (local time) - 10ft (3.0m), 16s period, W swell with 5,006 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 7AM (local time) - 5.5ft (1.7m), 12s period with WNW swell.
Best Forecast Surf Conditions for Lighthouse this week:
The surf forecast for Lighthouse over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 21) at 7AM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 0.4m and 8s. Another secondary swell of 0.5m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lighthouse in the next 16 days are 3.0m 16s and forecast to arrive on Friday (Sep 25) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Thursday (Sep 24) at 10AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Mon 21st Sep) | 5.5ft (1.7m) 12s |
| Best Surf | 1PM (Wed 23rd Sep) | 7ft (2.2m) 13s |
| Most Powerful | 1PM (Fri 25th Sep) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Lighthouse over the next 16 days.
Short Range ForecastModerate rain (total 13mm), heaviest on Fri morning. Very mild (max 16°C on Fri morning, min 12°C on Sat night). Winds decreasing (fresh winds from the WSW on Sat morning, light winds from the WSW by Sun morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | |||||||||||||||
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) | WNW 13 | WNW 12 | WNW 11 | W 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 10 | W 10 | W 11 | W 11 | W 14 | WNW 13 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3893 | 3201 | 2043 | 2884 | 3571 | 3737 | 2526 | 1831 | 1200 | 729 | 588 | 524 | 701 | 507 | 1190 | 1750 | 1231 | 705 | 358 | 292 | 151 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | on | on | on | on | cross | cross-off | cross | cross-on | cross | cross | glassy | cross | cross | off | cross-off | cross-off | cross | cross |
High Tide | 10:48AM2.58m | 11:17PM2.26m | 11:59AM2.39m | 00:49AM2.08m | 1:46PM2.35m | 2:41AM2.12m | 3:15PM2.52m | 3:51AM2.32m | 4:08PM2.78m | 4:35AM2.55m | 4:47PM3.04m | 5:10AM2.79m | 5:19PM3.29m | ||||||||
Low Tide | 4:59PM1.20m | 5:10AM1.29m | 6:32PM1.40m | 6:53AM1.43m | 8:42PM1.37m | 8:46AM1.33m | 9:51PM1.15m | 9:47AM1.11m | 10:33PM0.89m | 10:28AM0.87m | 11:06PM0.63m | 11:03AM0.64m | 11:36PM0.38m | ||||||||
 |  |  |  | |  |  | | |  | | | | |  | | | | | |  | |
 | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — | 7:20 | — | — | 7:22 | — | — |
 | — | 7:44 | — | — | 7:42 | — | — | 7:38 | — | — | 7:37 | — | — | 7:34 | — | — | 7:31 | — | — | 7:29 | — |
mm | 6 | 3 | 1 | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 16 | 16 | 16 | 14 | 14 | 12 | 13 | 13 | 16 | 19 | 20 | 18 | 17 | 17 | 14 | 12 | 15 | 15 | 19 | 21 | 17 |
Feels °C | 12 | 11 | 11 | 7 | 7 | 6 | 10 | 9 | 15 | 17 | 19 | 18 | 17 | 18 | 13 | 10 | 13 | 13 | 14 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | WNW 13 | — | — | — | — | — | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 10 | W 10 | W 11 | W 11 | W 14 | WNW 13 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | W 11 |
| kJ | 3893 | — | — | — | — | — | 2526 | 1831 | 1200 | 729 | 588 | 524 | 701 | 507 | 1190 | 1750 | 1231 | 705 | 358 | 292 | 151 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | N 8 | — | — | — | — | — | — | WNW 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 99 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 12 | WNW 11 | W 11 | WNW 12 | WNW 12 | — | — | S 3 | S 3 | — | — | — | — | — | — | — | — | SE 4 | SSE 4 | S 3 |
| kJ | — | 3201 | 2043 | 2884 | 3571 | 3737 | — | — | 8 | 5 | — | — | — | — | — | — | — | — | 12 | 11 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 717 | 248 | 712 | 712 | 726 | 248 | 10 | 5 | 5 | 10 | 5 | 5 | 5 | 0 | 65 | 38 | 0 | 5 | 17 | 39 | 5 |
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 Lighthouse 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 Lighthouse Surf forecast
The above surf forecast table for Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Lighthouse 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 (Lighthouse) 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 Lighthouse 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 Lighthouse, camping, hotels and holiday cottages in Sligo, consider staying in Sligo which is 10 km (6 miles) away. Other places in and around Sligo where you can find information about places to rent, and car hire include Killybegs which is 37 km (23 miles) away, Ballina, Enniskillen and Claremorris.
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