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Surf Forecasts:
Ballyhiernan Bay surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 11 am Saturday 21 Mar 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
8.0° C
(Which is slightly cooler than normal)How big are the waves at Ballyhiernan Bay today?
The current surf forecast for Ballyhiernan Bay at 5PM is: 3.5m 16s primary swell from a Northwest direction (forecast issued at 11:00am March 21). The wind direction is predicted to be cross-shore and the swell rating is 11.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 10ft (3.0m) | 16s |
| Afternoon (21 Mar) | 11ft (3.5m) | 16s |
| Evening (21 Mar) | 10ft (3.0m) | 15s |
Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 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 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4760 | 5254 | 5189 | 4993 | 4081 | 3390 | 3154 | 2717 | 2734 | 3783 | 5290 | 4682 | 4356 | 4228 | 4103 | 4063 | 4563 | 4119 | 3536 | 2982 | 2067 | 2496 | 2816 | 2845 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | glass | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross |
High Tide / height (m) | 7:18AM 3.64 | 7:37PM 3.37 | 7:56AM 3.49 | 8:15PM 3.26 | 8:37AM 3.24 | 8:58PM 3.07 | ||||||||||||||||||
Low Tide / height (m) | 1:26PM -0.09 | 1:38AM -0.02 | 2:03PM 0.07 | 2:19AM 0.16 | 2:43PM 0.32 | 3:06AM 0.42 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | 6:31 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:49 | - | - | - | - |
 |  | | |  | | | |  | | | | | | | | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 1 |
| Temp. °C | 8 | 10 | 10 | 11 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 6 | 6 | 8 | 9 | 11 | 12 | 12 | 11 | 9 |
| Feels °C (?) | 5 | 8 | 7 | 9 | 6 | 4 | 4 | 4 | 4 | 1 | 0 | 1 | 1 | 2 | 2 | 1 | 1 | 2 | 1 | 4 | 3 | 2 | 1 | -1 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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