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Ballyhiernan Bay surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 12 am Sunday 17 May 2026 ISTForecast update in hr min s Forecast update imminent
Ballyhiernan Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ballyhiernan Bay sea temperature is
11.1° C
(Which is normal for this time of year)How big are the waves at Ballyhiernan Bay today?
The current surf forecast for Ballyhiernan Bay at 7AM is: 2.4m 13s primary swell from a West-northwest direction and 0.1m 9s secondary swell from a North direction (forecast issued at 12:00am May 17). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 8ft (2.4m) | 13s |
| Afternoon (17 May) | 7ft (2.1m) | 13s |
| Evening (17 May) | 6ft (1.9m) | 12s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 24mm), heaviest during Sun afternoon. Very mild (max 13°C on Mon afternoon, min 8°C on Sun afternoon). Winds increasing (calm on Mon morning, strong winds from the SE by Mon night). | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | ||||||||||||||||||||||
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 | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WNW 11 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | W 9 | W 9 | |
531 | 1511 | 1935 | 1759 | 1545 | 1376 | 1030 | 889 | 819 | 698 | 540 | 469 | 404 | 304 | 286 | 223 | 183 | 135 | 78 | 66 | 46 | 31 | 39 | 162 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross-off | cross-on | on | on | cross-on | on | glassy | glassy | cross-on | cross-off | cross-off | off | cross-off | cross-off | off | off | off | cross | cross-off | off | |
High Tide | 6:56AM3.48m | 7:20PM3.48m | 7:43AM3.42m | 8:06PM3.49m | 8:32AM3.27m | 8:55PM3.42m | ||||||||||||||||||
Low Tide | 00:39AM0.03m | 1:02PM-0.01m | 1:26AM-0.02m | 1:46PM0.05m | 2:15AM0.03m | 2:33PM0.17m | ||||||||||||||||||
 |  |  | |  | | | |  | |  | |  | | |  | | | | | | | | | |
 | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:36 | — | — | — | — | — | — | — | 9:37 | — | — | — | — | — | — | — | 9:38 | — |
1 | 2 | 1 | 1 | 1 | 2 | 4 | 1 | — | — | — | — | — | — | — | — | — | 4 | 3 | 1 | 1 | 1 | — | 1 | |
Temp °C | 9 | 9 | 9 | 10 | 10 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 10 | 11 | 13 | 10 | 9 | 9 | 10 | 11 | 11 | 13 | 13 | 11 |
3 | 2 | 2 | 4 | 7 | 5 | 4 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 9 | 4 | 2 | 1 | 2 | 7 | 8 | 7 | 8 | 8 | |
Swell 1 Height (m) Direction Period (s) | NW 14 | N 9 | N 9 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | W 9 | WNW 16 |
 kJ | 390 | 2 | 2 | 1759 | 1545 | 1376 | 1030 | 889 | 819 | 698 | 540 | 469 | 404 | 304 | 286 | 223 | 183 | 135 | 78 | 66 | 46 | 31 | 39 | 147 |
Swell 2 Height (m) Direction Period (s) | N 9 | N 6 | — | — | — | — | — | — | — | — | — | — | — | N 9 | N 9 | N 6 | N 6 | N 8 | ENE 5 | ENE 6 | WNW 13 | WNW 13 | WNW 13 | WNW 12 |
| kJ | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 1 | 1 | 3 | 4 | 18 | 17 | 17 | 30 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 9 | N 9 | W 15 | NW 15 | NW 14 | ENE 6 | NE 4 | WNW 17 | N 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 4 | 8 | 8 | 4 | 1 | 28 | 1 |
Wind waves Height (m) Direction Period (s) | WNW 11 | WNW 13 | WNW 13 | — | — | — | — | — | — | — | — | — | — | — | — | E 2 | SE 2 | SE 3 | SE 3 | SSE 3 | — | WSW 4 | WSW 5 | W 9 |
| kJ | 531 | 1511 | 1935 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 4 | 1 | — | 9 | 33 | 162 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 67 | 36 | 36 | 36 | 0 | 21 | 36 | 5 | 67 | 21 | 0 | 0 | 21 | 21 | 13 | 0 | 21 | 91 | 128 | 0 | 0 | 28 | 28 | 0 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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