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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 12 pm Saturday 16 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 8PM is: 1.5m 12s primary swell from a West direction (forecast issued at 12:00pm May 16). The wind direction is predicted to be onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 2ft (0.6m) | 8s |
| Afternoon (16 May) | 4.5ft (1.3m) | 13s |
| Evening (16 May) | 6.5ft (2.0m) | 14s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 20mm), heaviest during Mon night. Very mild (max 14°C on Mon afternoon, min 6°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 8 | W 7 | W 13 | W 12 | W 14 | W 14 | 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 | |
42 | 112 | 573 | 668 | 1620 | 1770 | 2101 | 2069 | 1701 | 1584 | 1379 | 1174 | 909 | 786 | 652 | 466 | 396 | 326 | 250 | 204 | 163 | 128 | 98 | 64 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | glassy | glassy | glassy | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 6:17PM3.62m | 6:34AM3.67m | 7:01PM3.74m | 7:23AM3.60m | 7:47PM3.77m | |||||||||||||||||||
Low Tide | 11:58AM-0.03m | 00:19AM0.10m | 12:40PM-0.04m | 1:06AM0.02m | 1:23PM0.03m | 1:55AM0.04m | ||||||||||||||||||
 |  |  | |  | |  | | | | | | |  | |  | |  | | |  | | | | |
 | 5:26 | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — |
 | — | — | — | 9:32 | — | — | — | — | — | — | — | 9:34 | — | — | — | — | — | — | — | 9:36 | — | — | — | 9:37 |
1 | 1 | — | 1 | 1 | 1 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | 3 | 2 | — | |
Temp °C | 10 | 10 | 11 | 10 | 8 | 8 | 8 | 8 | 8 | 7 | 9 | 9 | 8 | 7 | 6 | 6 | 10 | 12 | 14 | 13 | 10 | 9 | 10 | 10 |
8 | 6 | 5 | 4 | 2 | 2 | 2 | 4 | 3 | 2 | 6 | 5 | 6 | 5 | 5 | 4 | 8 | 9 | 10 | 9 | 5 | 4 | 5 | 7 | |
Swell 1 Height (m) Direction Period (s) | W 8 | 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 |
 kJ | 42 | 92 | — | — | — | — | — | — | 1701 | 1584 | 1379 | 1174 | 909 | 786 | 652 | 466 | 396 | 326 | 250 | 204 | 163 | 128 | 98 | 64 |
Swell 2 Height (m) Direction Period (s) | WNW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 16 | W 15 | W 15 |
| kJ | 41 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | 4 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 3 | W 7 | W 13 | W 12 | W 14 | W 14 | W 13 | W 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 2 | SE 3 | SSE 3 |
| kJ | 1 | 112 | 573 | 668 | 1620 | 1770 | 2101 | 2069 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 65 | 101 | 123 | 383 | 123 | 106 | 106 | 43 | 123 | 48 | 31 | 66 | 66 | 0 | 0 | 0 | 0 | 8 | 0 | 28 | 8 | 130 | 8 | 8 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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