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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 12 pm Monday 25 May 2026 ISTForecast update in hr min s Forecast update imminent
Rossnowlagh surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rossnowlagh sea temperature is
12.5° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Rossnowlagh today?
The current surf forecast for Rossnowlagh at 9PM is: 1.3m 12s primary swell from a West direction (forecast issued at 12:00pm May 25). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 4.5ft (1.4m) | 13s |
| Afternoon (25 May) | 4.5ft (1.4m) | 12s |
| Evening (25 May) | 4.5ft (1.3m) | 12s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 22°C on Wed afternoon, min 12°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
W 13 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | |
643 | 604 | 566 | 472 | 488 | 565 | 555 | 537 | 418 | 338 | 279 | 227 | 181 | 177 | 138 | 100 | 96 | 71 | 70 | 47 | 44 | 26 | 25 | 14 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | on | on | cross-on | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off | off | cross-off | |
High Tide | 2:42PM2.60m | 2:52AM3.07m | 3:39PM2.75m | 3:47AM3.06m | 4:26PM2.91m | 4:34AM3.07m | ||||||||||||||||||
Low Tide | 8:33AM0.76m | 8:33PM1.04m | 9:26AM0.69m | 9:33PM0.95m | 10:09AM0.62m | 10:23PM0.84m | ||||||||||||||||||
 |  | | |  |  |  | | |  | | | | | | | | | | | | | | | |
 | 5:11 | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — |
 | — | — | — | 9:46 | — | — | — | — | — | — | — | 9:49 | — | — | — | — | — | — | — | 9:50 | — | — | — | 9:52 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 17 | 18 | 17 | 15 | 14 | 13 | 14 | 17 | 21 | 21 | 19 | 14 | 13 | 12 | 12 | 16 | 21 | 22 | 21 | 17 | 14 | 14 | 15 |
14 | 15 | 17 | 16 | 14 | 13 | 12 | 13 | 16 | 21 | 20 | 16 | 11 | 10 | 9 | 9 | 13 | 19 | 20 | 19 | 15 | 12 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | W 13 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 |
 kJ | 643 | 604 | 566 | 472 | 488 | 565 | 555 | 537 | 418 | 338 | 279 | 227 | 181 | 177 | 138 | 100 | 96 | 71 | 70 | 47 | 44 | 26 | 25 | 14 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 18 | NW 6 | NW 6 | NW 6 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 18 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | NE 2 | ENE 2 | ENE 2 | ENE 2 | ENE 2 | — | — | — | — | E 2 | ESE 2 | ESE 2 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | — | — | — | — | 1 | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 65 | 176 | 182 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 23 | 21 | 30 | 30 | 38 | 34 | 63 | 65 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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