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Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Ballyhiernan Bay surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 11 am Tuesday 30 Dec 2025 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
8.6° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Ballyhiernan Bay today?
The current surf forecast for Ballyhiernan Bay at 6PM is: 0.5m 14s primary swell from a West-northwest direction and 0.3m 6s secondary swell from a North-northwest direction (forecast issued at 11:00am December 30). The wind direction is predicted to be offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Dec) | 1.5ft (0.4m) | 16s |
| Afternoon (30 Dec) | 1.5ft (0.4m) | 15s |
| Evening (30 Dec) | 1.5ft (0.5m) | 14s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 30 | Wednesday 31 | Thursday 01 | Friday 02 | |||||||||||||||||||||
| 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 | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 5 | 6 | 8 | 9 | 10 | 10 | 10 | 14 | 13 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 66 | 64 | 85 | 120 | 115 | 141 | 137 | 135 | 95 | 87 | 83 | 274 | 106 | 280 | 664 | 1159 | 1461 | 1501 | 2124 | 4463 | 3521 | 2975 | 2470 | 1899 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross | cross- off | cross | cross | cross | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | cross- on | cross- on |
High Tide / height (m) | 2:09PM 2.77 | 2:53AM 2.70 | 3:19PM 2.89 | 3:54AM 2.94 | 4:21PM 3.05 | 4:49AM 3.20 | ||||||||||||||||||
Low Tide / height (m) | 7:42AM 0.86 | 8:29PM 0.66 | 8:56AM 0.70 | 9:31PM 0.52 | 10:00AM 0.48 | 10:26PM 0.37 | ||||||||||||||||||
Tuesday 30 | Wednesday 31 | Thursday 01 | Friday 02 | |||||||||||||||||||||
| Sunrise | 8:56 | - | - | - | - | - | - | - | 8:56 | - | - | - | - | - | - | - | 8:56 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:07 | - | - | - | - | - | - | - | 4:08 | - | - | - | - | - | - | - | 4:10 | - | - | - | - | - |
 |  | |  | | | | | |  | |  | |  | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | - | - | 1 | - | - | - | 1 | 2 |
| Temp. °C | 5 | 5 | 4 | 4 | 4 | 5 | 4 | 4 | 4 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 4 |
| Feels °C (?) | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | -1 | -1 | -1 | -1 | -1 | -2 | -2 | -4 | -4 | -5 | -5 | -5 | -3 | -5 | -5 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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