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Surf Forecasts:
Lighthouse surfForecast / Sligo / Ireland
48hr Weather and Surf, issued 12 pm Monday 11 May 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
11.9° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Lighthouse today?
The current surf forecast for Lighthouse at 4PM is: 1.6m 8s primary swell from a Northwest direction and 0.2m 14s secondary swell from a West-northwest direction, 1.0m 8s secondary swell from a Northwest direction (forecast issued at 12:00pm May 11). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 5ft (1.6m) | 8s |
| Afternoon (11 May) | 5ft (1.6m) | 8s |
| Evening (11 May) | 5ft (1.6m) | 9s |
Table - waves today at Lighthouse. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Very mild (max 11°C on Tue afternoon, min 8°C on Tue night). Winds increasing (light winds from the W on Mon night, strong winds from the NW by Wed morning). | ||||||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 8 | NW 8 | NW 8 | NW 9 | NW 9 | WNW 9 | WNW 9 | NW 7 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | |
322 | 330 | 335 | 320 | 334 | 421 | 512 | 503 | 666 | 947 | 1261 | 1850 | 2585 | 4075 | 5278 | 6291 | 5971 | 5452 | 4546 | 3527 | 2863 | 2232 | 1583 | 1271 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | |
High Tide | 2:16PM2.33m | 2:27AM2.84m | 3:16PM2.56m | 3:20AM3.04m | 4:05PM2.83m | 4:09AM3.25m | ||||||||||||||||||
Low Tide | 8:11AM1.03m | 8:04PM1.17m | 9:06AM0.78m | 9:06PM1.00m | 9:51AM0.51m | 9:58PM0.77m | ||||||||||||||||||
 |  | | |  | |  | | | | | | |  | |  |  | | | | | | |  | |
 | 5:37 | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:31 | — |
 | — | — | — | 9:23 | — | — | — | — | — | — | — | 9:25 | — | — | — | — | — | — | — | 9:28 | — | — | — | 9:29 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | |
Temp °C | 10 | 10 | 9 | 9 | 9 | 9 | 10 | 9 | 10 | 10 | 11 | 10 | 10 | 9 | 8 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 9 |
4 | 4 | 3 | 4 | 6 | 4 | 4 | 2 | 2 | 2 | 3 | 2 | 1 | -1 | -2 | -1 | -2 | 0 | 0 | -1 | 0 | 1 | 2 | 2 | |
Swell 1 Height (m) Direction Period (s) | W 9 | NW 8 | NW 8 | NW 9 | NW 9 | — | W 20 | W 19 | W 13 | W 19 | W 18 | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 16 |
 kJ | 14 | 330 | 335 | 320 | 334 | — | 7 | 7 | 14 | 7 | 7 | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 9 | WNW 14 | W 14 | — | — | — | — | W 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 14 | 18 | 15 | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | WNW 14 | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 19 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 8 | — | NW 8 | — | — | WNW 9 | WNW 9 | NW 7 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 |
| kJ | 322 | — | 138 | — | — | 421 | 512 | 503 | 666 | 947 | 1261 | 1850 | 2585 | 4075 | 5278 | 6291 | 5971 | 5452 | 4546 | 3527 | 2863 | 2232 | 1583 | 1271 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 220 | 161 | 418 | 418 | 151 | 258 | 257 | 258 | 533 | 516 | 1187 | 468 | 469 | 469 | 495 | 533 | 585 | 1091 | 1254 | 1228 | 1088 | 820 | 511 | 511 |
Best forecast wave conditions in Sligo | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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