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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 pm Thursday 21 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
11.5° 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 3PM is: 1.5m 10s primary swell from a West-southwest direction and 0.5m 7s secondary swell from a Northwest direction (forecast issued at 12:00pm May 21). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 5ft (1.6m) | 11s |
| Afternoon (21 May) | 5ft (1.5m) | 10s |
| Evening (21 May) | 5ft (1.5m) | 10s |
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 5mm), mostly falling on Thu afternoon. Very mild (max 17°C on Thu morning, min 11°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 9 | |
575 | 522 | 425 | 380 | 442 | 469 | 531 | 531 | 560 | 478 | 469 | 452 | 367 | 353 | 331 | 272 | 319 | 370 | 333 | 359 | 409 | 502 | 492 | 433 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | off | off | off | off | |
High Tide | 9:57AM2.76m | 10:20PM3.30m | 11:01AM2.53m | 11:24PM3.15m | 12:13PM2.39m | 00:33AM3.03m | ||||||||||||||||||
Low Tide | 3:41PM0.60m | 4:48AM0.55m | 4:41PM0.81m | 6:03AM0.69m | 5:53PM0.98m | |||||||||||||||||||
 |  |  | |  |  | | | | | | | |  | | | | | | | | | | | |
 | 5:24 | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — |
 | — | — | — | 9:44 | — | — | — | — | — | — | — | 9:45 | — | — | — | — | — | — | — | 9:46 | — | — | — | 9:49 |
— | — | 2 | 2 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 17 | 15 | 15 | 14 | 13 | 12 | 13 | 15 | 17 | 14 | 13 | 13 | 11 | 11 | 11 | 14 | 16 | 16 | 15 | 13 | 12 | 12 | 12 |
11 | 14 | 13 | 11 | 11 | 9 | 9 | 10 | 12 | 13 | 10 | 10 | 10 | 8 | 8 | 8 | 10 | 10 | 11 | 11 | 10 | 10 | 10 | 9 | |
Swell 1 Height (m) Direction Period (s) | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | N 6 | WSW 11 | N 6 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | N 6 | W 16 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 9 |
 kJ | 575 | 522 | 425 | 380 | 442 | 469 | 531 | 531 | 560 | 478 | 1 | 452 | 1 | 353 | 331 | 272 | 319 | 1 | 5 | 359 | 409 | 502 | 492 | 433 |
Swell 2 Height (m) Direction Period (s) | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 8 | NNW 7 | NNW 8 | NNW 7 | NNW 7 | N 8 | N 6 | N 7 | N 6 | W 16 | W 12 | W 16 | W 16 | — | — | SW 15 | SW 14 | SW 14 | SW 14 |
| kJ | 48 | 28 | 19 | 14 | 14 | 18 | 5 | 6 | 5 | 5 | 1 | 1 | 1 | 1 | 5 | 67 | 5 | 5 | — | — | 8 | 8 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | NNW 10 | NW 10 | NW 9 | NNW 9 | NNW 9 | NNW 9 | N 8 | N 8 | — | N 8 | W 18 | — | — | — | N 6 | SW 16 | — | — | — | — | — | — | — | — |
| kJ | 10 | 24 | 22 | 8 | 8 | 8 | 6 | 1 | — | 1 | 6 | — | — | — | 1 | 10 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 3 | SE 4 | SE 4 | SE 4 | SSE 4 | ESE 4 | S 3 | WSW 11 | — | WSW 10 | — | — | S 3 | S 3 | WSW 10 | WSW 9 | — | — | — | — | S 3 |
| kJ | — | — | — | 3 | 6 | 18 | 17 | 7 | 1 | 1 | 469 | — | 367 | — | — | 5 | 5 | 370 | 333 | — | — | — | — | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 9 | 0 | 0 | 0 | 0 | 9 | 9 | 9 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mayo and Achill Island | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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