Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
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:
Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland
48hr Weather and Surf, issued 11 pm Saturday 27 Dec 2025 ISTForecast update in hr min s Forecast update imminent
Bunatrahir Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bunatrahir Bay sea temperature is
10.2° C
(Which is normal for this time of year)How big are the waves at Bunatrahir Bay today?
The current surf forecast for Bunatrahir Bay at 7AM is: 0.8m 11s primary swell from a West direction and 0.8m 10s secondary swell from a Northwest direction (forecast issued at 11:00pm December 27). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Dec) | 2ft (0.6m) | 17s |
| Afternoon (28 Dec) | 3ft (0.9m) | 15s |
| Evening (28 Dec) | 3ft (0.9m) | 14s |
Table - waves today at Bunatrahir Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 28 | Monday 29 | Tuesday 30 | ||||||||||||||||||||||
| 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 | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 11 | 11 | 17 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 16 | 16 | 15 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 243 | 232 | 205 | 160 | 200 | 330 | 362 | 339 | 329 | 315 | 289 | 280 | 280 | 212 | 196 | 146 | 144 | 141 | 134 | 127 | 178 | 208 | 264 | 253 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross- on | cross- on | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 10:58PM 2.44 | 11:10AM 2.91 | 12:06AM 2.47 | 12:18PM 2.85 | 1:17AM 2.59 | 1:31PM 2.85 | ||||||||||||||||||
Low Tide / height (m) | 4:37AM 0.99 | 5:45PM 0.72 | 5:52AM 1.05 | 6:53PM 0.69 | 7:14AM 0.98 | |||||||||||||||||||
Sunday 28 | Monday 29 | Tuesday 30 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:57 | - | - | - | - | - | - | - | 8:57 | - | - | - | - | - | - | - | 8:57 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:19 | - | - | - | - | - | - | - | 4:20 | - | - | - | - | - | - | - | 4:21 | - |
 | |  | |  | | |  | | | | |  | | | | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 3 | 3 | 5 | 4 | 5 | 4 | 5 | 5 | 5 | 4 | 3 | 3 | 4 | 4 | 5 | 4 | 4 | 4 | 5 | 6 | 6 | 6 | 5 | 5 |
| Feels °C (?) | -1 | -1 | 1 | -1 | 1 | 0 | 2 | 1 | 1 | 1 | 0 | -1 | 0 | 1 | 2 | 1 | 0 | 0 | 1 | 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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