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Bunatrahir Bay Surf Forecast
/ Mayo and Achill Island (14 surf breaks) /
Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland
12 Day Weather and Surf, issued 12 am Saturday 19 Jul 2025 IST
Best Forecast Surf Conditions for Bunatrahir Bay this week:
The surf forecast for Bunatrahir Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 19) at 4AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.1m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Bunatrahir Bay in the next 12 days are 3.5m 13s and forecast to arrive on Saturday (Jul 26) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 24) at 10AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 19th Jul) | 3ft (0.9m) 7s |
| Best Surf | 10PM (Fri 25th Jul) | 11ft (3.5m) 13s |
| Most Powerful | 1AM (Sat 26th Jul) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Bunatrahir Bay over the next 12 days.
Short Range Forecast Light rain (total 2mm), mostly falling on Sat afternoon. Very mild (max 17°C on Sat morning, min 14°C on Fri night). Winds increasing (light winds from the SW on Fri night, fresh winds from the NW by Mon morning). | Days 3-6 Weather Summary Some drizzle, heaviest during Tue afternoon. Very mild (max 17°C on Wed afternoon, min 13°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Fri 25 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 11 | 10 | 10 | 6 | 7 | 7 | 6 | 6 | 6 | 11 | 10 | 10 | 9 | 8 | 9 | 8 | 9 | |
Wave (?)Graph  | ||||||||||||||||||||||
| Energy (?) | 92 | 75 | 57 | 84 | 282 | 311 | 249 | 316 | 382 | 355 | 125 | 96 | 404 | 804 | 495 | 283 | 209 | 235 | 337 | 538 | 1184 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- on | cross | cross- on | on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross | cross | off | cross- off | cross- off | cross- off | cross- off | cross- off | |
High Tide / height (m) | 12:22AM 2.93 | 1:13PM 2.61 | 1:35AM 2.78 | 2:27PM 2.68 | 2:54AM 2.73 | 3:39PM 2.83 | 4:09AM 2.78 | 4:42PM 3.05 | 5:12AM 2.88 | 5:36PM 3.28 | 6:05AM 2.97 | 6:25PM 3.48 | 6:51AM 3.03 | |||||||||
Low Tide / height (m) | 6:49AM 0.70 | 7:11PM 0.95 | 8:00AM 0.76 | 8:36PM 0.91 | 9:13AM 0.74 | 9:54PM 0.75 | 10:16AM 0.64 | 10:58PM 0.55 | 11:11AM 0.51 | 11:53PM 0.36 | 11:59AM 0.38 | 12:41AM 0.23 | 12:42PM 0.29 | |||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Fri 25 | ||||||||||||||||
| Sunrise | - | 5:26 | - | - | 5:28 | - | - | 5:30 | - | - | 5:31 | - | - | 5:33 | - | - | 5:35 | - | - | 5:37 | - | |
| Sunset | - | - | 9:58 | - | - | 9:57 | - | - | 9:55 | - | - | 9:53 | - | - | 9:52 | - | - | 9:51 | - | - | 9:50 | |
 | |  |  |  | | | | |  | | | | | | | | | | | | ||
Rain (mm) | - | - | 2 | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 15 | 17 | 17 | 16 | 17 | 17 | 15 | 16 | 16 | 14 | 16 | 16 | 14 | 16 | 17 | 15 | 16 | 16 | 14 | 15 | 15 | |
| Feels °C (?) | 14 | 15 | 15 | 15 | 14 | 14 | 13 | 11 | 11 | 11 | 13 | 12 | 11 | 14 | 15 | 14 | 13 | 12 | 10 | 9 | 10 | |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Mayo and Achill Island
Continuing clean conditions at Bunatrahir Bay (calm at Ballina 28 km from Bunatrahir Bay). 0.9m 7s swell from the W
28 km away, 1 h 9 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Bunatrahir Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Bunatrahir Bay Surf forecast
The above surf forecast table for Bunatrahir Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Bunatrahir Bay can be found by selecting the local surf guide option on the grey menu. Our Bunatrahir Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Bunatrahir Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Bunatrahir Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Mayo and Achill Island? If you are looking for accommodation near Bunatrahir Bay, camping, hotels and holiday cottages in Mayo and Achill Island, consider staying in Ballina which is 24 km (15 miles) away. Other places in and around Mayo and Achill Island where you can find information about places to rent, and car hire include Belmullet which is 41 km (25 miles) away, Westport, Sligo and Claremorris.
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