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Ballyhiernan Bay surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 6 pm Friday 15 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
11.2° C
(Which is slightly warmer than usual)How big are the waves at Ballyhiernan Bay today?
The current surf forecast for Ballyhiernan Bay at 1AM is: 0.5m 7s primary swell from a Northwest direction and 0.5m 6s secondary swell from a North direction (forecast issued at 06:00pm May 15). The wind direction is predicted to be glassy.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 2.5ft (0.7m) | 8s |
| Afternoon (16 May) | 4.5ft (1.3m) | 6s |
| Evening (16 May) | 4.5ft (1.4m) | 7s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Sun morning. Very mild (max 12°C on Mon morning, min 7°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the W by Sat night). | ||||||||||||||||||||||||
Fri 15 | Saturday 16 | Sunday 17 | Mon 18 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WNW 8 | WNW 7 | N 7 | NW 7 | WNW 7 | WNW 8 | WNW 8 | NW 14 | WNW 6 | WNW 7 | NW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | |
72 | 70 | 32 | 26 | 43 | 58 | 60 | 47 | 117 | 152 | 214 | 347 | 1844 | 2144 | 1958 | 1738 | 1376 | 1080 | 889 | 859 | 711 | 550 | 478 | 412 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | glassy | off | off | off | cross-off | cross-on | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-off | off | off | |
High Tide | 5:54PM3.20m | 6:11AM3.43m | 6:36PM3.37m | 6:56AM3.48m | 7:20PM3.48m | 7:43AM3.42m | ||||||||||||||||||
Low Tide | 11:53PM0.17m | 12:19PM0.01m | 00:39AM0.03m | 1:02PM-0.01m | 1:26AM-0.02m | |||||||||||||||||||
 | |  |  | |  |  | |  | |  | | | | | | | |  | | | |  | | |
 | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — |
 | — | 9:31 | — | — | — | — | — | — | — | 9:34 | — | — | — | — | — | — | — | 9:36 | — | — | — | — | — | 9:37 |
— | — | — | — | — | — | 2 | 2 | 1 | — | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 2 | 1 | — | — | — | — | — | |
Temp °C | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 8 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 8 | 7 | 9 | 12 |
3 | 4 | 5 | 6 | 3 | 3 | 2 | 4 | 4 | 3 | 1 | 1 | 1 | 2 | 3 | 3 | 6 | 7 | 6 | 7 | 5 | 4 | 6 | 9 | |
Swell 1 Height (m) Direction Period (s) | N 7 | WNW 7 | N 7 | N 6 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | WNW 13 | NW 12 | NW 12 | WNW 14 | N 9 | — | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 |
 kJ | 57 | 70 | 32 | 20 | 43 | 58 | 60 | 47 | 116 | 152 | 140 | 347 | 2 | — | 1958 | 1738 | 1376 | 1080 | 889 | 859 | 711 | 550 | 478 | 412 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | N 7 | NW 7 | NW 7 | N 6 | N 6 | N 6 | NW 14 | N 6 | NW 15 | NW 14 | WNW 11 | — | — | — | — | — | — | — | — | — | N 9 | N 9 | N 9 |
| kJ | 72 | 43 | 27 | 26 | 18 | 11 | 11 | 46 | 3 | 34 | 214 | 164 | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | W 14 | — | W 7 | WNW 7 | NW 16 | NW 15 | NW 15 | N 6 | N 10 | N 6 | N 10 | N 9 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | — | 15 | 16 | 10 | 9 | 33 | 6 | 2 | 3 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | WNW 6 | WNW 7 | WNW 7 | W 7 | WNW 13 | WNW 13 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 117 | 152 | 180 | 247 | 1844 | 2144 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 336 | 72 | 21 | 0 | 0 | 0 | 0 | 5 | 112 | 322 | 336 | 67 | 67 | 36 | 28 | 28 | 0 | 21 | 5 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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