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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 6 am Sunday 17 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
11.2° C
(Which is normal for this time of year)How big are the waves at Rossnowlagh today?
The current surf forecast for Rossnowlagh at 11AM is: 2.2m 13s primary swell from a West direction (forecast issued at 06:00am May 17). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 7.5ft (2.3m) | 13s |
| Afternoon (17 May) | 7ft (2.1m) | 13s |
| Evening (17 May) | 6ft (1.9m) | 12s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Sun morning. Very mild (max 14°C on Mon afternoon, min 6°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
W 13 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | W 9 | WNW 9 | W 9 | W 10 | W 16 | W 15 | |
1783 | 1909 | 1686 | 1584 | 1379 | 1062 | 895 | 786 | 563 | 466 | 396 | 326 | 250 | 204 | 163 | 128 | 96 | 44 | 42 | 28 | 40 | 46 | 122 | 362 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | on | on | glassy | glassy | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross | cross-on | |
High Tide | 6:34AM3.67m | 7:01PM3.74m | 7:23AM3.60m | 7:47PM3.77m | 8:13AM3.43m | 8:36PM3.72m | ||||||||||||||||||
Low Tide | 12:40PM-0.04m | 1:06AM0.02m | 1:23PM0.03m | 1:55AM0.04m | 2:08PM0.18m | |||||||||||||||||||
 |  | | | |  |  | | |  |  | | | |  |  | | | | | | | | | |
 | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | 5:20 |
 | — | — | — | — | — | 9:34 | — | — | — | — | — | — | — | 9:36 | — | — | — | — | — | — | — | 9:37 | — | 9:38 |
1 | 1 | 4 | 2 | 3 | 1 | — | — | — | — | — | — | — | — | — | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 3 | |
Temp °C | 8 | 8 | 7 | 9 | 9 | 9 | 7 | 6 | 6 | 6 | 10 | 13 | 14 | 13 | 10 | 9 | 10 | 11 | 13 | 12 | 13 | 13 | 10 | 10 |
3 | 4 | 2 | 4 | 6 | 6 | 5 | 4 | 4 | 4 | 7 | 10 | 10 | 9 | 6 | 4 | 5 | 7 | 10 | 9 | 9 | 9 | 7 | 5 | |
Swell 1 Height (m) Direction Period (s) | — | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | W 9 | WNW 9 | W 9 | W 10 | W 10 | WSW 9 |
 kJ | — | 1909 | 1686 | 1584 | 1379 | 1062 | 895 | 786 | 563 | 466 | 396 | 326 | 250 | 204 | 163 | 128 | 96 | 44 | 42 | 28 | 40 | 45 | 65 | 185 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 15 | W 15 | W 15 | W 14 | W 9 | W 13 | W 13 | W 16 | W 15 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | 4 | 17 | 16 | 14 | 31 | 31 | 122 | 362 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 13 | W 17 | W 16 | W 12 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 14 | 6 | 46 | 47 | — |
Wind waves Height (m) Direction Period (s) | W 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 3 | SE 3 | SSE 3 | S 3 | SW 3 | WSW 4 | WSW 4 | WSW 5 | — |
| kJ | 1783 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 4 | 1 | 2 | 8 | 16 | 33 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 106 | 106 | 106 | 106 | 65 | 97 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 8 | 97 | 10 | 30 | 73 | 87 | 83 | 83 | 8 | 128 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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