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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 Sunday 17 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
11.6° 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: 3.5m 12s primary swell from a West direction and 0.4m 10s secondary swell from a North-northeast direction (forecast issued at 12:00am May 17). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 11ft (3.5m) | 13s |
| Afternoon (17 May) | 10ft (3.0m) | 12s |
| Evening (17 May) | 10ft (3.0m) | 12s |
Table - waves today at Bunatrahir Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Sun morning. Very mild (max 14°C on Tue afternoon, min 7°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the SW by Tue afternoon). | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
W 13 | W 13 | W 12 | W 13 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WSW 9 | WSW 8 | WSW 8 | W 16 | |
3530 | 4051 | 3863 | 3502 | 3214 | 2655 | 2340 | 1966 | 1633 | 1270 | 1045 | 934 | 721 | 533 | 463 | 356 | 240 | 150 | 113 | 48 | 197 | 321 | 439 | 697 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | glassy | glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | cross-off | |
High Tide | 6:28AM3.48m | 6:54PM3.57m | 7:16AM3.41m | 7:40PM3.60m | 8:07AM3.25m | 8:29PM3.56m | ||||||||||||||||||
Low Tide | 00:13AM0.12m | 12:34PM-0.02m | 1:01AM0.03m | 1:17PM0.05m | 1:50AM0.05m | 2:02PM0.20m | ||||||||||||||||||
 |  |  | | |  |  |  | | |  |  | | | |  | | | | | | | | | |
 | — | 5:31 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:37 | — | — | — | — | — | — | — | 9:38 | — | — | — | — | — | — | — | 9:40 | — |
— | — | 1 | 4 | 2 | 1 | 1 | 1 | — | — | — | — | — | — | — | 1 | 4 | 4 | — | 1 | 1 | — | 1 | 1 | |
Temp °C | 8 | 8 | 8 | 8 | 8 | 9 | 10 | 8 | 7 | 7 | 7 | 9 | 12 | 13 | 13 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 11 | 12 |
2 | 3 | 4 | 2 | 2 | 3 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 8 | 9 | 5 | 3 | 5 | 8 | 8 | 6 | 7 | 9 | 8 | |
Swell 1 Height (m) Direction Period (s) | N 10 | NNE 10 | W 12 | W 13 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | W 13 | W 13 | W 16 | W 16 |
 kJ | 50 | 32 | 3863 | 3502 | 3214 | 2655 | 2340 | 1966 | 1633 | 1270 | 1045 | 934 | 721 | 533 | 463 | 356 | 240 | 150 | 113 | 48 | 55 | 55 | 254 | 697 |
Swell 2 Height (m) Direction Period (s) | — | — | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 8 | WSW 9 | NW 9 | NNE 8 | W 13 | W 12 |
| kJ | — | — | 31 | 31 | 31 | 30 | 28 | 28 | 28 | 27 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 44 | 21 | 14 | 78 | 72 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 16 | W 15 | W 15 | W 14 | NNE 8 | NNE 8 | W 17 | NNE 8 | NNE 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | 17 | 17 | 16 | 14 | 13 | 52 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | W 13 | W 13 | — | — | — | — | — | — | — | — | — | — | — | — | ESE 3 | SE 3 | SE 4 | SE 4 | SE 4 | S 3 | WSW 9 | WSW 8 | WSW 8 | WSW 9 |
| kJ | 3530 | 4051 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 25 | 41 | 12 | 6 | 197 | 321 | 439 | 576 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 203 | 182 | 11 | 182 | 139 | 170 | 182 | 63 | 0 | 0 | 0 | 0 | 20 | 20 | 20 | 20 | 81 | 71 | 0 | 9 | 144 | 179 | 0 | 105 |
Best forecast wave conditions in Mayo and Achill Island | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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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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