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Surf Forecasts:
Lighthouse surfForecast / Sligo / Ireland
48hr Weather and Surf, issued 6 pm Sunday 31 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
13.6° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Lighthouse today (31 May):
- Afternoon surf: Afternoon surf (31 May, local time) - 4.5ft (1.3m), 12s period with W swell.
- Evening surf: Evening surf (31 May, local time) - 3.5ft (1.1m), 11s period with W swell.
The current surf forecast for Lighthouse at 10PM is: 1.1m 11s primary swell from a West direction and 0.2m 10s secondary swell from a North direction (forecast issued at 06:00pm May 31). The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | - | - |
| Afternoon (31 May) | 4.5ft (1.3m) | 12s |
| Evening (31 May) | 3.5ft (1.1m) | 11s |
Table - waves today at Lighthouse. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Mon morning. Very mild (max 16°C on Mon afternoon, min 11°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
W 12 | W 11 | W 11 | W 11 | W 11 | WSW 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | W 10 | W 16 | W 14 | W 14 | W 13 | W 13 | W 13 | |
396 | 369 | 305 | 253 | 195 | 194 | 184 | 177 | 164 | 200 | 122 | 186 | 148 | 113 | 85 | 83 | 61 | 67 | 77 | 206 | 569 | 495 | 404 | 319 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross-off | cross | cross | cross-on | cross-off | cross-off | cross-on | cross-on | on | on | on | glassy | on | cross-on | cross-on | on | cross-on | cross | cross-off | cross-off | cross | cross-on | |
High Tide | 6:48PM3.23m | 7:03AM2.96m | 7:23PM3.24m | 7:39AM2.89m | 8:00PM3.22m | 8:15AM2.80m | ||||||||||||||||||
Low Tide | 00:54AM0.52m | 12:59PM0.48m | 1:30AM0.54m | 1:33PM0.52m | 2:08AM0.61m | |||||||||||||||||||
 |  |  | |  | |  | |  | | | | | | |  | | |  |  | | | | | |
 | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — |
 | — | 9:55 | — | — | — | — | — | — | — | 9:57 | — | — | — | — | — | — | — | 9:58 | — | — | — | — | — | 9:59 |
— | — | 1 | 1 | — | — | 1 | 5 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 3 | |
Temp °C | 15 | 15 | 13 | 13 | 14 | 14 | 14 | 14 | 16 | 15 | 14 | 13 | 12 | 12 | 14 | 14 | 14 | 14 | 13 | 11 | 11 | 11 | 13 | 14 |
13 | 13 | 10 | 10 | 12 | 12 | 13 | 13 | 14 | 13 | 11 | 11 | 10 | 11 | 12 | 12 | 11 | 12 | 11 | 8 | 7 | 6 | 10 | 9 | |
Swell 1 Height (m) Direction Period (s) | W 12 | W 11 | W 11 | W 11 | W 11 | WSW 11 | W 11 | W 10 | W 10 | N 9 | W 10 | W 10 | W 10 | W 9 | W 9 | N 7 | W 9 | W 10 | W 10 | WSW 10 | W 14 | W 13 | W 13 | W 13 |
 kJ | 396 | 369 | 305 | 253 | 195 | 194 | 184 | 177 | 164 | 6 | 122 | 186 | 148 | 113 | 85 | 1 | 61 | 67 | 77 | 160 | 569 | 495 | 404 | 319 |
Swell 2 Height (m) Direction Period (s) | N 10 | N 10 | N 10 | N 10 | N 10 | N 10 | N 10 | N 9 | N 9 | — | N 9 | N 9 | N 8 | N 8 | N 8 | W 18 | W 17 | W 16 | W 16 | W 14 | — | — | — | — |
| kJ | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | — | 2 | 1 | 1 | 1 | 1 | 6 | 6 | 20 | 76 | 206 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 7 | N 7 | N 7 | N 7 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 3 | S 3 | — | S 3 | — | — | W 10 | W 4 | — | — | — | — | W 9 | W 4 | W 4 | W 4 | W 5 | — | SSE 3 | SSW 4 | WSW 7 |
| kJ | — | — | — | 2 | 3 | — | 1 | — | — | 200 | 19 | — | — | — | — | 83 | 17 | 19 | 26 | 22 | — | 12 | 12 | 105 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 10 | 5 | 10 | 10 | 5 | 5 | 0 | 0 | 6 | 41 | 10 | 10 | 41 | 0 | 41 | 144 | 144 | 278 | 10 | 5 | 6 | 25 | 10 | 165 |
Best forecast wave conditions in Sligo | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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