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Surf Forecasts:
Lighthouse surfForecast / Sligo / Ireland
48hr Weather and Surf, issued 6 am Saturday 18 Apr 2026 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
9.3° C
(Which is normal for this time of year)How big are the waves at Lighthouse today?
The current surf forecast for Lighthouse at 12PM is: 1.8m 10s primary swell from a West direction and 1.5m 9s secondary swell from a Northwest direction, 1.8m 9s secondary swell from a Northwest direction (forecast issued at 06:00am April 18). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 5.5ft (1.7m) | 10s |
| Afternoon (18 Apr) | 5.5ft (1.7m) | 10s |
| Evening (18 Apr) | 4.5ft (1.4m) | 9s |
Table - waves today at Lighthouse. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 10 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 10 | 15 | 14 | 13 | 12 | 12 | 12 | 11 | 14 | 13 | 13 | 14 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 635 | 918 | 569 | 798 | 502 | 426 | 287 | 249 | 206 | 162 | 190 | 148 | 191 | 222 | 314 | 443 | 392 | 319 | 268 | 492 | 455 | 790 | 599 | 461 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross | cross | cross- off | glass | cross | cross | off | cross- off | cross- off | off | off | off | off | off | off | off |
High Tide / height (m) | 6:52AM 3.77 | 7:18PM 3.63 | 7:34AM 3.69 | 7:58PM 3.63 | 8:19AM 3.51 | 8:42PM 3.54 | ||||||||||||||||||
Low Tide / height (m) | 1:01PM -0.17 | 1:17AM -0.02 | 1:39PM -0.08 | 2:01AM 0.02 | 2:19PM 0.10 | |||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| Sunrise | - | 6:26 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - |
| Sunset | - | - | - | - | - | 8:40 | - | - | - | - | - | - | - | 8:43 | - | - | - | - | - | - | - | 8:45 | - | - |
 |  |  | | | |  | | |  |  | | | |  | | | | | | | |  | | |
Rain (mm) | 2 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 7 | 6 | 7 | 9 | 11 | 11 | 11 | 8 | 7 | 6 | 7 | 10 | 13 | 11 | 9 | 8 |
| Feels °C (?) | 1 | 2 | 2 | 3 | 3 | 4 | 5 | 5 | 4 | 3 | 4 | 7 | 8 | 8 | 8 | 4 | 3 | 2 | 3 | 6 | 9 | 6 | 5 | 3 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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