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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 12 am 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
11.3° C
(Which is normal for this time of year)How big are the waves at Rossnowlagh today?
The current surf forecast for Rossnowlagh at 5AM is: 0.6m 10s primary swell from a West direction and 0.2m 15s secondary swell from a West direction (forecast issued at 12:00am May 19). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| 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) | 4.5ft (1.3m) | 16s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 24mm), heaviest during Thu afternoon. Very mild (max 17°C on Thu afternoon, min 10°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | ||||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WNW 10 | W 10 | W 9 | 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 | WSW 11 | W 11 | W 10 | |
100 | 67 | 44 | 25 | 41 | 58 | 129 | 832 | 916 | 932 | 906 | 1052 | 760 | 551 | 413 | 336 | 271 | 206 | 149 | 146 | 146 | 153 | 110 | 80 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-off | off | cross | cross | cross | cross | cross | cross-off | cross-off | |
High Tide | 8:13AM3.43m | 8:36PM3.72m | 9:06AM3.19m | 9:29PM3.61m | 10:03AM2.93m | |||||||||||||||||||
Low Tide | 1:55AM0.04m | 2:08PM0.18m | 2:47AM0.17m | 2:55PM0.38m | 3:45AM0.37m | 3:47PM0.60m | ||||||||||||||||||
 | |  |  |  | | |  |  |  | | | |  | | | | | | | | | | | |
 | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:37 | — | — | — | — | — | — | — | 9:38 | — | — | — | — | — | — | — | 9:40 | — |
2 | 1 | — | 2 | 1 | 2 | 2 | 1 | — | — | 2 | 1 | — | — | — | — | 1 | 2 | — | — | — | 2 | 3 | 1 | |
Temp °C | 10 | 11 | 12 | 12 | 14 | 12 | 11 | 11 | 10 | 11 | 11 | 12 | 13 | 14 | 13 | 13 | 12 | 14 | 14 | 14 | 16 | 17 | 15 | 14 |
6 | 9 | 10 | 8 | 9 | 8 | 9 | 7 | 6 | 7 | 7 | 9 | 10 | 11 | 11 | 12 | 10 | 11 | 12 | 12 | 14 | 16 | 14 | 10 | |
Swell 1 Height (m) Direction Period (s) | WNW 10 | W 10 | W 9 | W 9 | W 9 | W 9 | W 10 | — | 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 | WSW 11 | W 11 | W 10 |
 kJ | 100 | 67 | 44 | 25 | 41 | 58 | 87 | — | 916 | 932 | 906 | 1052 | 760 | 551 | 413 | 336 | 271 | 206 | 149 | 146 | 146 | 153 | 110 | 80 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 15 | W 15 | WNW 10 | W 13 | W 13 | W 16 | — | — | — | — | — | — | — | — | — | NW 6 | NW 6 | NW 6 | NW 6 | NW 8 | NW 8 | NW 8 | NW 7 |
| kJ | 5 | 4 | 17 | 18 | 14 | 31 | 129 | — | — | — | — | — | — | — | — | — | 6 | 6 | 6 | 7 | 10 | 9 | 9 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 14 | W 18 | W 17 | W 13 | — | — | — | — | — | — | — | — | — | — | W 10 | NW 10 | — | — | — | — | W 16 |
| kJ | — | — | — | 16 | 6 | 22 | 55 | — | — | — | — | — | — | — | — | — | — | 2 | 4 | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | SE 3 | SSE 3 | SSE 3 | S 3 | SSW 3 | S 3 | SSW 3 | W 16 | WSW 5 | WSW 5 | WSW 6 | — | — | — | — | — | — | S 3 | S 3 | S 3 | SSW 3 | — | S 3 | S 3 |
| kJ | 5 | 4 | 3 | 5 | 3 | 5 | 3 | 832 | 41 | 37 | 77 | — | — | — | — | — | — | 2 | 8 | 6 | 4 | — | 1 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 8 | 9 | 9 | 57 | 48 | 48 | 8 | 73 | 107 | 123 | 81 | 48 | 48 | 73 | 19 | 0 | 0 | 69 | 48 | 48 | 8 | 8 | 0 | 66 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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