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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 6 am 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 11AM is: 1.8m 8s primary swell from a West-northwest direction (forecast issued at 06:00am May 12). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 5.5ft (1.7m) | 8s |
| Afternoon (12 May) | 6.5ft (2.0m) | 9s |
| Evening (12 May) | 10ft (3.0m) | 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 13mm), heaviest on Tue night. Very mild (max 11°C on Tue morning, min 7°C on Wed night). Winds decreasing (strong winds from the NW on Wed afternoon, light winds from the N by Thu night). | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WNW 9 | WNW 7 | WNW 8 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 8 | |
301 | 248 | 392 | 479 | 724 | 1129 | 1701 | 2719 | 3001 | 3124 | 3060 | 2802 | 2686 | 2046 | 1652 | 1190 | 918 | 754 | 517 | 415 | 396 | 343 | 249 | 180 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | cross-on | cross-on | cross | cross | cross | cross | cross | cross | |
High Tide | 3:18PM2.63m | 3:23AM3.12m | 4:07PM2.91m | 4:12AM3.33m | 4:52PM3.18m | |||||||||||||||||||
Low Tide | 9:08AM0.81m | 9:09PM1.02m | 9:54AM0.53m | 10:01PM0.78m | 10:36AM0.28m | 10:48PM0.52m | ||||||||||||||||||
 |  |  |  | | | |  | |  | | | | |  | | |  | | | | |  | | |
 | 5:33 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | 5:28 |
 | — | — | — | — | — | 9:24 | — | — | — | — | — | — | — | 9:27 | — | — | — | — | — | — | — | 9:29 | — | 9:30 |
1 | — | — | — | — | — | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 | 1 | 1 | — | — | — | |
Temp °C | 10 | 9 | 10 | 11 | 11 | 10 | 9 | 8 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 9 | 8 | 7 | 8 | 10 | 11 | 10 | 8 | 7 |
4 | 3 | 3 | 3 | 3 | 2 | 0 | -1 | -1 | 0 | 1 | 2 | 1 | 1 | 2 | 3 | 1 | 1 | 3 | 4 | 3 | 4 | 3 | 3 | |
Swell 1 Height (m) Direction Period (s) | — | W 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 9 | NW 8 |
 kJ | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 249 | 180 |
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 7 | WNW 8 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | — | — |
| kJ | 301 | 248 | 392 | 479 | 724 | 1129 | 1701 | 2719 | 3001 | 3124 | 3060 | 2802 | 2686 | 2046 | 1652 | 1190 | 918 | 754 | 517 | 415 | 396 | 343 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 277 | 278 | 487 | 571 | 439 | 438 | 439 | 439 | 475 | 508 | 548 | 548 | 1007 | 992 | 514 | 548 | 548 | 571 | 327 | 327 | 720 | 439 | 348 | 325 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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