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Bunatrahir Bay Surf Forecast
/ Mayo and Achill Island (14 surf breaks) /
Surf Forecasts:
Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland
48hr Weather and Surf, issued 6 am Wednesday 13 May 2026 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
11.8° C
(Which is slightly warmer than usual)How big are the waves at Bunatrahir Bay today?
The current surf forecast for Bunatrahir Bay at 9AM is: 5.5m 12s primary swell from a Northwest direction (forecast issued at 06:00am May 13). An open ocean swell of 0.1m 18s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 18ft (5.5m) | 12s |
| Afternoon (13 May) | 15ft (4.5m) | 12s |
| Evening (13 May) | 15ft (4.5m) | 11s |
Table - waves today at Bunatrahir Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 8mm), mostly falling on Wed morning. Very mild (max 10°C on Wed morning, min 7°C on Fri night). Winds decreasing (strong winds from the NW on Wed morning, light winds from the W by Fri night). | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NNW 10 | WNW 9 | NNW 9 | NNW 9 | N 8 | N 8 | N 8 | N 8 | N 7 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | |
7704 | 9048 | 8210 | 6803 | 5923 | 4878 | 3935 | 3260 | 2464 | 1983 | 1625 | 695 | 1080 | 1058 | 507 | 447 | 388 | 283 | 178 | 155 | 135 | 155 | 120 | 120 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross | off | |
High Tide | 4:02PM2.76m | 4:05AM3.16m | 4:46PM3.03m | 4:52AM3.33m | 5:28PM3.27m | |||||||||||||||||||
Low Tide | 9:47AM0.49m | 9:54PM0.78m | 10:29AM0.26m | 10:41PM0.53m | 11:10AM0.08m | 11:27PM0.30m | ||||||||||||||||||
 |  |  | | | | |  | |  | | | |  | | | |  | | | | |  | | |
 | 5:37 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | 5:31 |
 | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:31 | — | — | — | — | — | — | — | 9:34 | — | 9:36 |
— | — | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 8 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 10 | 9 | 9 | 8 | 9 | 9 | 10 | 10 | 10 | 8 | 7 |
-1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 3 | 4 | 3 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 5 | 4 | |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | — | — | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 9 | SW 15 | W 10 | NW 9 | NW 8 | WNW 8 | WNW 8 | N 7 | N 7 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
 kJ | 12 | 12 | — | — | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 695 | 9 | 2 | 371 | 274 | 188 | 157 | 178 | 155 | 135 | 155 | 120 | 120 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 15 | — | SW 15 | SW 15 | W 9 | W 10 | W 9 | WNW 8 | WNW 8 | N 7 | N 7 | N 7 | N 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 9 | — | 8 | 8 | 15 | 8 | 15 | 145 | 145 | 124 | 103 | 86 | 70 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 15 | SW 15 | SW 15 | W 9 | W 9 | W 9 | SW 14 | W 14 | W 16 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 8 | 8 | 15 | 27 | 26 | 8 | 4 | 5 |
Wind waves Height (m) Direction Period (s) | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NNW 10 | N 9 | NNW 9 | NNW 9 | N 8 | N 8 | N 8 | N 8 | — | — | — | — | — | — |
| kJ | 7704 | 9048 | 8210 | 6803 | 5923 | 4878 | 3935 | 3260 | 2464 | 1983 | 1625 | 538 | 1080 | 1058 | 507 | 447 | 388 | 283 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 514 | 515 | 560 | 583 | 606 | 1156 | 1078 | 1050 | 616 | 616 | 593 | 535 | 1206 | 670 | 739 | 519 | 346 | 510 | 151 | 151 | 300 | 300 | 286 | 453 |
Best forecast wave conditions in Mayo and Achill Island | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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