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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 12 pm Tuesday 19 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
11.4° C
(Which is normal for this time of year)How big are the waves at Rossnowlagh today?
The current surf forecast for Rossnowlagh at 6PM is: 0.5m 16s primary swell from a West direction and 0.7m 9s secondary swell from a West direction, 0.3m 3s secondary swell from a South-southwest direction (forecast issued at 12:00pm May 19). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 1.5ft (0.4m) | 9s |
| Afternoon (19 May) | 2ft (0.6m) | 9s |
| Evening (19 May) | 3ft (0.9m) | 16s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 19mm), heaviest on Thu afternoon. Very mild (max 16°C on Thu morning, min 10°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
W 9 | W 9 | W 9 | W 16 | W 16 | W 15 | W 14 | W 14 | W 14 | W 13 | W 13 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 10 | W 11 | W 11 | |
25 | 41 | 58 | 129 | 396 | 1051 | 932 | 1484 | 617 | 861 | 640 | 413 | 336 | 271 | 206 | 149 | 146 | 146 | 110 | 108 | 110 | 108 | 110 | 82 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 8:13AM3.43m | 8:36PM3.72m | 9:06AM3.19m | 9:29PM3.61m | 10:03AM2.93m | 10:28PM3.45m | ||||||||||||||||||
Low Tide | 2:08PM0.18m | 2:47AM0.17m | 2:55PM0.38m | 3:45AM0.37m | 3:47PM0.60m | 4:51AM0.59m | ||||||||||||||||||
 | | | |  |  |  |  |  |  |  | | |  | | | | | | | | | | | |
 | 5:20 | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — |
 | — | — | — | 9:37 | — | — | — | — | — | — | — | 9:38 | — | — | — | — | — | — | — | 9:40 | — | — | — | 9:43 |
2 | 1 | 2 | 2 | 2 | — | — | 1 | — | — | — | — | — | 1 | 2 | — | — | — | 1 | 3 | 1 | 1 | — | — | |
Temp °C | 13 | 14 | 13 | 11 | 11 | 10 | 11 | 11 | 12 | 13 | 14 | 13 | 13 | 12 | 14 | 14 | 14 | 16 | 16 | 15 | 14 | 14 | 13 | 13 |
9 | 10 | 10 | 9 | 10 | 7 | 7 | 6 | 7 | 9 | 11 | 10 | 11 | 10 | 11 | 12 | 12 | 14 | 14 | 13 | 11 | 11 | 11 | 12 | |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 10 | W 16 | W 15 | W 14 | — | W 14 | W 13 | W 13 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 10 | W 11 | W 11 |
 kJ | 25 | 41 | 58 | 88 | 396 | 1051 | 932 | — | 617 | 861 | 640 | 413 | 336 | 271 | 206 | 149 | 146 | 146 | 110 | 108 | 110 | 108 | 110 | 82 |
Swell 2 Height (m) Direction Period (s) | WNW 10 | W 13 | W 13 | W 16 | W 10 | — | — | — | — | — | — | — | — | — | NW 10 | NW 10 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | W 13 |
| kJ | 18 | 14 | 31 | 129 | 90 | — | — | — | — | — | — | — | — | — | 4 | 4 | 11 | 10 | 9 | 9 | 2 | 2 | 2 | 14 |
Swell 3 Height (m) Direction Period (s) | W 14 | W 18 | W 17 | W 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 7 |
| kJ | 16 | 6 | 22 | 55 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Wind waves Height (m) Direction Period (s) | S 3 | S 4 | SSW 3 | — | — | — | SW 4 | W 14 | W 7 | — | — | — | — | — | S 3 | S 4 | S 4 | SSW 3 | S 2 | S 3 | S 3 | S 3 | SSE 3 | SSE 3 |
| kJ | 5 | 6 | 2 | — | — | — | 15 | 1484 | 154 | — | — | — | — | — | 2 | 13 | 7 | 2 | 1 | 3 | 5 | 3 | 3 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 57 | 48 | 21 | 8 | 34 | 8 | 107 | 73 | 73 | 42 | 30 | 8 | 0 | 0 | 65 | 48 | 8 | 8 | 8 | 0 | 43 | 8 | 0 | 8 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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