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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 6 am Wednesday 15 Apr 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
8.7° C
(Which is slightly cooler than normal)How big are the waves at Rossnowlagh today?
The current surf forecast for Rossnowlagh at 12PM is: 0.9m 12s primary swell from a West direction and 0.1m 8s secondary swell from a Northwest direction, 0.5m 3s secondary swell from a South direction (forecast issued at 06:00am April 15). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Apr) | 3ft (0.9m) | 13s |
| Afternoon (15 Apr) | 3ft (0.9m) | 12s |
| Evening (15 Apr) | 2.5ft (0.8m) | 16s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 12 | 12 | 12 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 12 | 11 | 11 | 10 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 127 | 215 | 263 | 239 | 235 | 285 | 317 | 2080 | 2601 | 2175 | 1885 | 1303 | 932 | 663 | 459 | 290 | 224 | 220 | 166 | 384 | 534 | 389 | 492 | 450 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on | on |
High Tide / height (m) | ||||||||||||||||||||||||
Low Tide / height (m) | ||||||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||||||||
| Sunrise | - | 6:31 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - |
| Sunset | - | - | - | - | - | 8:35 | - | - | - | - | - | - | - | 8:37 | - | - | - | - | - | - | - | 8:38 | - | - |
 |  |  |  | | | | |  |  |  | |  | | |  | | | | |  | | | | |
Rain (mm) | 3 | 7 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | - | - | - | - | 2 | 1 | - | 2 | 1 | - | - | 1 | 1 | 1 | 1 |
| Temp. °C | 12 | 11 | 11 | 12 | 12 | 10 | 8 | 9 | 8 | 9 | 10 | 12 | 12 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 11 | 10 | 9 | 8 |
| Feels °C (?) | 9 | 9 | 8 | 7 | 6 | 3 | 1 | 1 | 1 | 4 | 5 | 8 | 7 | 6 | 5 | 4 | 5 | 4 | 4 | 5 | 5 | 3 | 3 | 1 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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