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Surf Forecasts:
Ballyhiernan Bay surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 5 pm Tuesday 09 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
10.2° 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 7PM is: 2.4m 14s primary swell from a West direction (forecast issued at 05:00pm December 09). The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Dec) | - | - |
| Afternoon (09 Dec) | 6ft (1.8m) | 15s |
| Evening (09 Dec) | 16ft (5.0m) | 13s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| 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 | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 13 | 13 | 13 | 12 | 12 | 11 | 12 | 12 | 14 | 14 | 13 | 13 | 13 | 14 | 15 | 15 | 17 | 16 | 16 | 17 | 18 | 18 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1396 | 2407 | 8163 | 7802 | 5782 | 3904 | 3781 | 3695 | 3737 | 3928 | 5489 | 4281 | 3112 | 2709 | 2390 | 3119 | 3529 | 2347 | 5400 | 4606 | 4724 | 7355 | 9950 | 9839 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | off | off | off | off | cross- off | cross- off | off | off | off | off | off | cross- off |
High Tide / height (m) | 9:28PM 2.68 | 9:56AM 3.09 | 10:26PM 2.47 | 10:56AM 2.88 | 11:32PM 2.32 | |||||||||||||||||||
Low Tide / height (m) | 3:19PM 0.45 | 3:22AM 0.55 | 4:18PM 0.65 | 4:19AM 0.74 | 5:24PM 0.81 | 5:24AM 0.90 | ||||||||||||||||||
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:45 | - | - | - | - | - | - | - | 8:45 | - | - | - | - | - | - | - | 8:47 | - |
| Sunset | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - | - | - | - | - |
 |  | |  | |  |  | |  |  | | |  | | | | | | | | | |  | | |
Rain (mm) | 1 | 1 | 1 | - | - | 1 | - | 1 | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - |
| Temp. °C | 14 | 10 | 10 | 10 | 10 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 9 | 11 | 11 | 11 | 8 | 8 | 8 | 7 | 6 | 6 | 6 | 8 |
| Feels °C (?) | 5 | -5 | -4 | -2 | -1 | -2 | -1 | -1 | -1 | 1 | 2 | 4 | -1 | 1 | 1 | 3 | 3 | 4 | 4 | 2 | 1 | 1 | -1 | 1 |
- 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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