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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 12 am Wednesday 13 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
11.6° C
(Which is slightly warmer than usual)How big are the waves at Rossnowlagh today?
The current surf forecast for Rossnowlagh at 7AM is: 3.5m 12s primary swell from a West-northwest direction (forecast issued at 12:00am May 13). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 11ft (3.5m) | 12s |
| Afternoon (13 May) | 10ft (3.0m) | 12s |
| Evening (13 May) | 8ft (2.5m) | 11s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Tue night. Very mild (max 11°C on Fri afternoon, min 7°C on Thu night). Winds decreasing (strong winds from the NW on Tue night, light winds from the NNW by Thu night). | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | ||||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WNW 10 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | WNW 8 | WNW 8 | NW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 8 | |
2299 | 2894 | 3323 | 2986 | 2421 | 2072 | 1888 | 1484 | 1168 | 1026 | 725 | 557 | 452 | 396 | 367 | 269 | 147 | 117 | 145 | 109 | 93 | 72 | 48 | 50 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | |
High Tide | 3:23AM3.12m | 4:07PM2.91m | 4:12AM3.33m | 4:52PM3.18m | 4:59AM3.52m | 5:34PM3.43m | ||||||||||||||||||
Low Tide | 9:54AM0.53m | 10:01PM0.78m | 10:36AM0.28m | 10:48PM0.52m | 11:17AM0.08m | |||||||||||||||||||
 | |  |  | | | |  |  |  | | | | |  |  | | | |  | | | | | |
 | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:27 | — | — | — | — | — | — | — | 9:29 | — | — | — | — | — | — | — | 9:30 | — |
1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 8 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 9 | 10 | 10 | 8 | 7 | 7 | 8 | 9 | 10 | 11 | 10 | 8 |
-1 | -1 | 0 | 1 | 2 | 2 | 1 | 2 | 1 | 2 | 2 | 3 | 4 | 3 | 3 | 3 | 2 | 2 | 3 | 4 | 5 | 6 | 5 | 5 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 8 | WNW 8 | — | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 8 |
 kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 147 | 117 | — | 109 | 93 | 72 | 48 | 50 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 9 | W 9 | W 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 15 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 10 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | N 4 | N 4 | NW 8 | — | — | — | — | — |
| kJ | 2299 | 2894 | 3323 | 2986 | 2421 | 2072 | 1888 | 1484 | 1168 | 1026 | 725 | 557 | 452 | 396 | 367 | 269 | 16 | 15 | 145 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 434 | 483 | 508 | 538 | 1075 | 998 | 975 | 548 | 548 | 571 | 475 | 1227 | 629 | 691 | 439 | 291 | 474 | 197 | 197 | 327 | 327 | 225 | 378 | 23 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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