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Surf Forecasts:
Rossnowlagh surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 6 am Saturday 09 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
11.9° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Rossnowlagh today?
The current surf forecast for Rossnowlagh at 10AM is: 0.7m 11s primary swell from a Northwest direction and 0.4m 12s secondary swell from a West direction, 0.5m 3s secondary swell from a North direction (forecast issued at 06:00am May 09). The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 2.5ft (0.7m) | 11s |
| Afternoon (09 May) | 1.5ft (0.4m) | 11s |
| Evening (09 May) | 1.5ft (0.4m) | 11s |
Table - waves today at Rossnowlagh. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 12°C on Mon morning, min 6°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 9 | Sunday 10 | Monday 11 | Tue 12 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NW 11 | NW 11 | NW 11 | NNW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NNW 6 | NW 6 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | WNW 9 | WNW 9 | WNW 9 | |
171 | 119 | 114 | 222 | 30 | 31 | 30 | 36 | 29 | 19 | 20 | 43 | 59 | 48 | 48 | 63 | 93 | 97 | 100 | 98 | 100 | 116 | 116 | 181 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-off | glassy | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | |
High Tide | 11:44AM2.26m | 00:21AM2.70m | 1:04PM2.26m | 1:29AM2.76m | 2:19PM2.40m | |||||||||||||||||||
Low Tide | 5:36AM1.26m | 5:26PM1.24m | 7:00AM1.24m | 6:49PM1.29m | 8:14AM1.07m | 8:08PM1.20m | ||||||||||||||||||
 |  | | | | |  | | | |  |  | | |  | | | | | | | | | | |
 | 5:39 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | 5:33 |
 | — | — | — | — | — | 9:20 | — | — | — | — | — | — | — | 9:22 | — | — | — | — | — | — | — | 9:23 | — | 9:24 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 6 | 6 | 9 | 10 | 10 | 9 | 7 | 6 | 6 | 6 | 10 | 9 | 11 | 10 | 9 | 9 | 9 | 10 | 11 | 12 | 12 | 11 | 10 | 9 |
3 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 3 | 4 | 5 | 3 | 6 | 5 | 5 | 5 | 6 | 7 | 8 | 8 | 8 | 7 | 7 | 5 | |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 11 | W 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 6 | NW 8 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | NW 8 | NW 8 | NW 8 | WNW 9 | WNW 12 | WNW 12 |
 kJ | 171 | 119 | 114 | 41 | 30 | 31 | 30 | 30 | 18 | 19 | 20 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 100 | 98 | 100 | 116 | 29 | 29 |
Swell 2 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | — | NW 6 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | NNW 10 | NW 11 | N 10 | N 10 | — | — | — | W 9 | W 9 | W 9 | WNW 13 | — | — |
| kJ | 44 | 44 | 43 | — | 14 | 21 | 21 | 20 | 20 | 18 | 8 | 10 | 4 | 2 | 2 | — | — | — | 6 | 6 | 6 | 18 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 11 | — | — | — | — | NNW 11 | NNW 11 | — | — | — | — | — | — | — | W 15 | W 14 | WNW 14 | — | — | — |
| kJ | — | — | — | — | 21 | — | — | — | — | 11 | 11 | — | — | — | — | — | — | — | 4 | 4 | 18 | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 3 | NNE 3 | N 3 | NNW 11 | NNW 4 | NNW 4 | NNW 4 | NNW 6 | NNW 6 | — | N 3 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | — | — | — | — | WNW 9 | WNW 9 |
| kJ | 1 | 3 | 5 | 222 | 21 | 25 | 20 | 36 | 29 | — | 2 | 43 | 59 | 48 | 48 | 63 | 93 | 97 | — | — | — | — | 116 | 181 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 498 | 548 | 735 | 360 | 406 | 494 | 36 | 36 | 225 | 492 | 468 | 309 | 406 | 406 | 406 | 406 | 23 | 225 | 71 | 106 | 138 | 278 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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