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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 5 am Wednesday 25 Mar 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
8.5° C
(Which is slightly cooler than normal)How big are the waves at Rossnowlagh today?
The current surf forecast for Rossnowlagh at 12PM is: 4.5m 13s primary swell from a West-northwest direction (forecast issued at 05:00am March 25). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Mar) | 15ft (4.5m) | 13s |
| Afternoon (25 Mar) | 13ft (4.0m) | 13s |
| Evening (25 Mar) | 11ft (3.5m) | 13s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 25 | Thursday 26 | Friday 27 | Sat 28 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 10 | 11 | 11 | 14 | 19 | 19 | 18 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 6922 | 7301 | 7411 | 6320 | 5091 | 4460 | 3948 | 3008 | 2377 | 1915 | 1392 | 1072 | 730 | 792 | 804 | 785 | 734 | 778 | 2114 | 11719 | 12549 | 10959 | 10342 | 9700 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on |
High Tide / height (m) | 10:10AM 2.75 | 10:45PM 2.87 | 11:37AM 2.47 | 12:19AM 2.77 | 1:23PM 2.42 | |||||||||||||||||||
Low Tide / height (m) | 3:43AM 0.75 | 4:04PM 0.96 | 5:06AM 1.02 | 5:30PM 1.20 | 7:05AM 1.07 | 7:22PM 1.20 | ||||||||||||||||||
Wednesday 25 | Thursday 26 | Friday 27 | Sat 28 | |||||||||||||||||||||
| Sunrise | - | - | 6:24 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:55 | - | - | - | - | - | - | - | 6:58 | - | - |
 |  |  | | |  |  | | | |  |  | | | | | | | | | | | | | |
Rain (mm) | 1 | 1 | 1 | 1 | 1 | - | - | - | 1 | - | - | 1 | 1 | 1 | 2 | 1 | - | - | - | 1 | - | - | 1 | 2 |
| Temp. °C | 5 | 5 | 5 | 6 | 7 | 7 | 7 | 6 | 7 | 6 | 5 | 5 | 8 | 10 | 10 | 8 | 8 | 7 | 8 | 7 | 7 | 7 | 7 | 6 |
| Feels °C (?) | -6 | -6 | -7 | -4 | -3 | -2 | -1 | 0 | 2 | 1 | 1 | 1 | 5 | 6 | 6 | 4 | 5 | 3 | 2 | -1 | -2 | -1 | -1 | -3 |
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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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