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Surf Forecasts:
Lighthouse surfForecast / Sligo / Ireland
12 Day Weather and Surf, issued 5 am Monday 15 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
9.9° C
(Which is slightly cooler than normal)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 5.0m and 21s period with a secondary swell of 2.5m and 20s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Lighthouse in the next 12 days are 7.0m 21s and forecast to arrive on Thursday (Dec 18) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Wednesday (Dec 17) at 6AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 17th Dec) | 16ft (5.0m) 21s |
| Best Surf | 9PM (Wed 17th Dec) | 16ft (5.0m) 21s |
| Most Powerful | 3AM (Thu 18th Dec) | 23ft (7.0m) 21s |
Table - best surf conditions forecast for Lighthouse over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 5mm), mostly falling on Tue morning. Very mild (max 10°C on Wed morning, min 4°C on Tue morning). Winds increasing (light winds from the S on Mon afternoon, strong winds from the S by Tue night). | Days 3-6 Weather Summary Heavy rain (total 26mm), heaviest during Thu afternoon. Very mild (max 10°C on Fri night, min 5°C on Sat night). Winds increasing (moderate winds from the WSW on Thu afternoon, strong winds from the S by Fri night). | ||||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||
| 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) (?) | 14 | 15 | 15 | 14 | 14 | 14 | 13 | 12 | 21 | 19 | 19 | 18 | 16 | 15 | 14 | 12 | 12 | 11 | 14 | 14 | 13 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 4511 | 6340 | 6090 | 4529 | 3606 | 2662 | 2039 | 1621 | 39307 | 31588 | 26626 | 22945 | 16243 | 12076 | 4989 | 1757 | 1323 | 1465 | 5019 | 5964 | 2293 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross | cross | cross- off | cross | cross- on | cross- on | cross- off | on | cross- on | cross- on | cross- on | cross | cross- on | cross | cross- off | cross- off | off | off |
High Tide / height (m) | 2:33PM 2.72 | 3:14AM 2.73 | 3:23PM 2.75 | 3:55AM 2.88 | 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 | ||||||||
Low Tide / height (m) | 8:53PM 0.80 | 9:15AM 0.96 | 9:33PM 0.72 | 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 | ||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||
| Sunrise | 8:48 | - | - | 8:48 | - | - | 8:49 | - | - | 8:49 | - | - | 8:51 | - | - | 8:52 | - | - | 8:52 | - | - |
| Sunset | - | 4:09 | - | - | 4:09 | - | - | 4:09 | - | - | 4:09 | - | - | 4:09 | - | - | 4:10 | - | - | 4:10 | - |
 |  |  |  |  |  |  | | | |  | | | |  | | | | | | | |
Rain (mm) | - | - | - | 1 | - | 1 | 2 | - | 1 | - | 9 | 3 | 1 | 1 | 5 | 2 | - | 5 | 6 | - | - |
| Temp. °C | 8 | 8 | 6 | 6 | 7 | 8 | 10 | 10 | 8 | 9 | 7 | 7 | 8 | 9 | 10 | 8 | 8 | 7 | 7 | 7 | 7 |
| Feels °C (?) | 5 | 5 | 2 | 1 | 2 | -2 | 5 | 6 | 2 | 2 | 2 | 0 | 0 | 2 | 5 | 1 | 2 | 2 | 3 | 3 | 3 |
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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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