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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 12 pm 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 9PM is: 1.0m 9s primary swell from a West-northwest direction and 0.2m 14s secondary swell from a West direction (forecast issued at 12:00pm May 11). The wind direction is predicted to be onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 3.5ft (1.0m) | 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 NW by Wed morning). | ||||||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NW 8 | NW 8 | NW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 7 | WNW 8 | WNW 9 | 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 | WNW 10 | |
117 | 109 | 138 | 161 | 161 | 227 | 301 | 229 | 392 | 490 | 710 | 1133 | 1525 | 2383 | 2894 | 3238 | 3010 | 2929 | 2377 | 1822 | 1484 | 1051 | 800 | 612 | |
Wind (km/h) | ||||||||||||||||||||||||
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-on | cross-on | cross-on | cross-on | |
High Tide | 2:19PM2.40m | 2:30AM2.92m | 3:18PM2.63m | 3:23AM3.12m | 4:07PM2.91m | 4:12AM3.33m | ||||||||||||||||||
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 | 12 | 11 | 10 | 9 | 9 | 10 | 9 | 10 | 11 | 11 | 10 | 9 | 8 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 8 |
5 | 7 | 5 | 5 | 6 | 5 | 4 | 3 | 2 | 3 | 3 | 3 | 1 | -1 | -1 | 0 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 2 | |
Swell 1 Height (m) Direction Period (s) | W 9 | NW 8 | W 14 | WNW 9 | WNW 9 | — | — | W 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
 kJ | 6 | 109 | 4 | 161 | 161 | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | W 15 | W 9 | W 9 | W 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 6 | 2 | 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | WNW 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 8 | — | NW 8 | — | — | WNW 9 | WNW 9 | WNW 7 | WNW 8 | WNW 9 | 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 | WNW 10 |
| kJ | 117 | — | 138 | — | — | 227 | 301 | 229 | 392 | 490 | 710 | 1133 | 1525 | 2383 | 2894 | 3238 | 3010 | 2929 | 2377 | 1822 | 1484 | 1051 | 800 | 612 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 184 | 197 | 383 | 383 | 114 | 278 | 277 | 278 | 508 | 533 | 1201 | 438 | 439 | 439 | 468 | 508 | 548 | 1062 | 1269 | 1191 | 1059 | 834 | 475 | 475 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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