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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 6 am Monday 11 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
11.7° 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 10AM is: 0.9m 8s primary swell from a Northwest direction and 0.2m 9s secondary swell from a West direction (forecast issued at 06:00am May 11). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 3ft (0.9m) | 8s |
| Afternoon (11 May) | 3.5ft (1.0m) | 8s |
| Evening (11 May) | 3.5ft (1.0m) | 9s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 8mm), mostly falling on Tue night. Very mild (max 12°C on Mon morning, min 8°C on Tue night). Winds increasing (light winds from the W on Mon night, strong winds from the WNW by Tue night). | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 6 | NW 7 | NW 8 | NW 8 | NW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 7 | WNW 8 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | NW 11 | |
80 | 115 | 101 | 109 | 138 | 161 | 161 | 227 | 301 | 216 | 344 | 468 | 611 | 1024 | 1329 | 1882 | 2445 | 2643 | 2755 | 2418 | 2417 | 2128 | 1421 | 1190 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | |
High Tide | 2:19PM2.40m | 2:30AM2.92m | 3:18PM2.63m | 3:23AM3.12m | 4:07PM2.91m | |||||||||||||||||||
Low Tide | 8:14AM1.07m | 8:08PM1.20m | 9:08AM0.81m | 9:09PM1.02m | 9:54AM0.53m | 10:01PM0.78m | ||||||||||||||||||
 |  | |  | |  | | |  | | | | | |  | |  |  | | | | | | | |
 | 5:35 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | 5:30 |
 | — | — | — | — | — | 9:23 | — | — | — | — | — | — | — | 9:24 | — | — | — | — | — | — | — | 9:27 | — | 9:29 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | |
Temp °C | 10 | 9 | 10 | 12 | 11 | 10 | 9 | 9 | 10 | 9 | 10 | 11 | 11 | 10 | 10 | 8 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 9 |
6 | 5 | 5 | 7 | 5 | 6 | 6 | 4 | 5 | 4 | 3 | 4 | 3 | 2 | 2 | -1 | -1 | 0 | 1 | 1 | 1 | 1 | 2 | 3 | |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | NW 8 | W 9 | W 14 | WNW 9 | WNW 9 | — | — | W 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
 kJ | 6 | 6 | 101 | 6 | 4 | 161 | 161 | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | W 9 | WNW 10 | W 9 | W 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 6 | 11 | 2 | 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 15 | W 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 7 | — | NW 8 | NW 8 | — | — | WNW 9 | WNW 9 | WNW 7 | WNW 8 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | NW 11 |
| kJ | 80 | 115 | — | 109 | 138 | — | — | 227 | 301 | 216 | 344 | 468 | 611 | 1024 | 1329 | 1882 | 2445 | 2643 | 2755 | 2418 | 2417 | 2128 | 1421 | 1190 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 425 | 406 | 184 | 182 | 383 | 71 | 114 | 278 | 278 | 278 | 508 | 533 | 524 | 279 | 438 | 439 | 475 | 475 | 1201 | 1062 | 1269 | 1061 | 1059 | 571 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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