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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 12 am Tuesday 12 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 5AM is: 2.3m 8s primary swell from a Northwest direction and 0.6m 9s secondary swell from a North direction (forecast issued at 12:00am May 12). An open ocean swell of 0.1m 19s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 8ft (2.5m) | 8s |
| Afternoon (12 May) | 10ft (3.0m) | 10s |
| Evening (12 May) | 13ft (4.0m) | 10s |
Table - waves today at Bunatrahir Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Very mild (max 11°C on Tue afternoon, min 7°C on Wed night). Winds decreasing (strong winds from the NW on Wed morning, moderate winds from the NW by Wed night). | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | ||||||||||||||||||||||
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 | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
NW 9 | NW 8 | NW 8 | NW 8 | NW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 10 | NNW 10 | N 10 | NNW 9 | NNW 9 | NNW 8 | |
493 | 602 | 746 | 964 | 1328 | 1817 | 2469 | 4010 | 6469 | 9067 | 10160 | 9499 | 8095 | 7063 | 5305 | 4081 | 3323 | 2564 | 2129 | 1797 | 780 | 1144 | 1026 | 800 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | 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 | |
High Tide | 2:22AM2.77m | 3:13PM2.49m | 3:16AM2.96m | 4:02PM2.76m | 4:05AM3.16m | 4:46PM3.03m | ||||||||||||||||||
Low Tide | 9:02AM0.76m | 9:02PM1.00m | 9:47AM0.49m | 9:54PM0.78m | 10:29AM0.26m | |||||||||||||||||||
 |  |  |  | | | |  |  | | |  | | | | |  | |  | | | |  | | |
 | — | 5:39 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:29 | — | — | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:31 | — |
— | — | — | — | — | — | — | — | 1 | — | — | 1 | 1 | 1 | — | — | 1 | 1 | 1 | 1 | 1 | 1 | — | — | |
Temp °C | 9 | 10 | 9 | 10 | 10 | 11 | 10 | 9 | 9 | 8 | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 7 | 9 | 10 | 10 | 10 | 9 |
4 | 4 | 2 | 2 | 2 | 3 | 2 | 0 | -1 | -2 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 2 | 2 | 3 | 3 | 3 | 3 | |
Swell 1 Height (m) Direction Period (s) | N 9 | N 9 | N 9 | NNE 9 | NNE 9 | NNE 9 | N 9 | N 9 | SW 18 | SW 18 | SW 18 | — | — | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 9 | SW 15 | SW 15 | SW 15 |
 kJ | 79 | 57 | 40 | 26 | 28 | 28 | 26 | 14 | 12 | 12 | 12 | — | — | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 710 | 9 | 8 | 8 |
Swell 2 Height (m) Direction Period (s) | W 20 | SW 19 | WNW 14 | W 13 | SW 19 | SW 18 | SW 18 | SW 18 | — | — | — | — | — | — | — | — | — | — | — | — | SW 15 | — | — | — |
| kJ | 7 | 15 | 38 | 14 | 14 | 13 | 12 | 12 | — | — | — | — | — | — | — | — | — | — | — | — | 9 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | SW 19 | SW 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 15 | 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 9 | NW 8 | NW 8 | NW 8 | NW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 10 | NNW 10 | N 10 | NNW 9 | NNW 9 | NNW 8 |
| kJ | 493 | 602 | 746 | 964 | 1328 | 1817 | 2469 | 4010 | 6469 | 9067 | 10160 | 9499 | 8095 | 7063 | 5305 | 4081 | 3323 | 2564 | 2129 | 1797 | 780 | 1144 | 1026 | 800 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 278 | 277 | 278 | 537 | 645 | 519 | 519 | 518 | 518 | 535 | 583 | 535 | 1260 | 627 | 615 | 615 | 535 | 844 | 535 | 690 | 686 | 262 | 519 | 469 |
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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