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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 6 pm Tuesday 12 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 9PM is: 2.5m 10s primary swell from a West-northwest direction (forecast issued at 06:00pm May 12). The wind direction is predicted to be onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | - | - |
| Afternoon (12 May) | 6.5ft (2.0m) | 9s |
| Evening (12 May) | 8ft (2.5m) | 10s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 14mm), heaviest on Thu morning. Very mild (max 11°C on Tue afternoon, min 7°C on Thu morning). Winds decreasing (strong winds from the NW on Tue night, light winds from the N by Thu night). | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WNW 9 | WNW 10 | WNW 10 | 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 | WNW 9 | WNW 9 | NW 8 | WNW 8 | NW 8 | WNW 8 | WNW 8 | |
695 | 1042 | 1494 | 2430 | 3104 | 3379 | 3202 | 2612 | 2204 | 1888 | 1552 | 1227 | 1026 | 784 | 597 | 450 | 393 | 194 | 157 | 222 | 103 | 145 | 109 | 103 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | |
High Tide | 3:18PM2.63m | 3:23AM3.12m | 4:07PM2.91m | 4:12AM3.33m | 4:52PM3.18m | 4:59AM3.52m | ||||||||||||||||||
Low Tide | 9:09PM1.02m | 9:54AM0.53m | 10:01PM0.78m | 10:36AM0.28m | 10:48PM0.52m | 11:17AM0.08m | ||||||||||||||||||
 |  |  |  | | |  | | | |  | | | | | | | |  |  | |  | |  | |
 | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:28 | — | — | — |
 | — | 9:24 | — | — | — | — | — | — | — | 9:27 | — | — | — | — | — | — | — | 9:29 | — | — | — | — | — | 9:30 |
— | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | |
Temp °C | 11 | 10 | 8 | 8 | 8 | 8 | 9 | 10 | 10 | 9 | 8 | 8 | 8 | 8 | 7 | 10 | 11 | 10 | 8 | 7 | 7 | 8 | 9 | 10 |
3 | 2 | -1 | -1 | -1 | 0 | 1 | 2 | 2 | 1 | 1 | 2 | 2 | 2 | 1 | 4 | 4 | 3 | 3 | 2 | 2 | 3 | 4 | 5 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 9 | WNW 9 | — | WNW 8 | — | — | — |
 kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 194 | 157 | — | 103 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 9 | WNW 10 | WNW 10 | 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 | N 5 | N 4 | NW 8 | NNW 4 | NW 8 | WNW 8 | WNW 8 |
| kJ | 695 | 1042 | 1494 | 2430 | 3104 | 3379 | 3202 | 2612 | 2204 | 1888 | 1552 | 1227 | 1026 | 784 | 597 | 450 | 393 | 43 | 33 | 222 | 18 | 145 | 109 | 103 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 678 | 438 | 439 | 439 | 487 | 475 | 538 | 1075 | 1269 | 548 | 548 | 834 | 571 | 571 | 628 | 629 | 647 | 648 | 348 | 421 | 327 | 327 | 327 | 327 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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