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Surf Forecasts:
Lighthouse surfForecast / Sligo / Ireland
12 Day Weather and Surf, issued 5 am Wednesday 17 Dec 2025 ISTForecast update in hr min s Forecast update imminent
Lighthouse surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Lighthouse sea temperature is
10.0° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Lighthouse this week:
The surf forecast for Lighthouse over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 17) at 9PM. The primary swell is predicted to be 5.5m and 17s period with a secondary swell of 1.0m and 4s. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Lighthouse in the next 12 days are 7.0m 20s and forecast to arrive on Thursday (Dec 18) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 4s period and expected on Saturday (Dec 20) at 12AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 17th Dec) | 18ft (5.5m) 17s |
| Best Surf | 9PM (Wed 17th Dec) | 18ft (5.5m) 17s |
| Most Powerful | 3AM (Thu 18th Dec) | 23ft (7.0m) 20s |
Table - best surf conditions forecast for Lighthouse over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Moderate rain (total 16mm), heaviest on Thu afternoon. Very mild (max 12°C on Wed morning, min 5°C on Thu afternoon). Winds increasing (moderate winds from the SSW on Wed afternoon, strong winds from the WSW by Thu night). | Days 3-6 Weather Summary Moderate rain (total 19mm), heaviest on Sun night. Mild temperatures (max 9°C on Sat morning, min 5°C on Sat night). Winds decreasing (fresh winds from the S on Sat morning, light winds from the ENE by Mon morning). | ||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 20 | 19 | 19 | 17 | 16 | 16 | 13 | 12 | 12 | 17 | 16 | 16 | 14 | 13 | 12 | 11 | 10 | 14 | 12 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 2172 | 2272 | 34073 | 29563 | 26672 | 18475 | 19862 | 15012 | 4119 | 1693 | 1556 | 6524 | 8280 | 6236 | 2420 | 889 | 494 | 242 | 100 | 118 | 247 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- off | on | cross- on | cross- on | cross- on | cross- off | cross | cross- off | off | off | off | cross- off | off | cross- off | off | off | off | cross- off |
High Tide / height (m) | 4:06PM 2.81 | 4:33AM 3.02 | 4:46PM 2.87 | 5:09AM 3.14 | 5:23PM 2.92 | 5:45AM 3.23 | 5:59PM 2.93 | 6:20AM 3.30 | 6:34PM 2.92 | 6:56AM 3.33 | 7:09PM 2.87 | 7:32AM 3.33 | 7:46PM 2.79 | ||||||||
Low Tide / height (m) | 9:59AM 0.83 | 10:10PM 0.64 | 10:38AM 0.70 | 10:46PM 0.56 | 11:15AM 0.60 | 11:21PM 0.50 | 11:52AM 0.55 | 11:55PM 0.45 | 12:28PM 0.53 | 12:28AM 0.44 | 1:04PM 0.55 | 1:02AM 0.45 | 1:42PM 0.59 | 1:36AM 0.51 | |||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||
| Sunrise | 8:49 | - | - | 8:49 | - | - | 8:51 | - | - | 8:52 | - | - | 8:52 | - | - | 8:52 | - | - | 8:52 | - | - |
| Sunset | - | 4:09 | - | - | 4:09 | - | - | 4:09 | - | - | 4:10 | - | - | 4:10 | - | - | 4:12 | - | - | 4:12 | - |
 |  |  |  | |  |  | | | | |  | |  | | | | | | | | |
Rain (mm) | 2 | - | 3 | 1 | 6 | 3 | - | - | 1 | 3 | - | - | 1 | 7 | 5 | - | 1 | 2 | 1 | 2 | 2 |
| Temp. °C | 12 | 10 | 8 | 8 | 6 | 8 | 8 | 9 | 10 | 9 | 7 | 6 | 7 | 8 | 7 | 6 | 7 | 8 | 7 | 8 | 8 |
| Feels °C (?) | 7 | 4 | 2 | -1 | -2 | -2 | 0 | 2 | 1 | 2 | 1 | 1 | 3 | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 4 |
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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.
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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 12 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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