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Birsay Bay Surf Forecast
/ Scot – Orkney (6 surf breaks) /
Birsay Bay surfForecast / Scot – Orkney / UK
12 Day Weather and Surf, issued 12 am Wednesday 30 Apr 2025 BST
Best Forecast Surf Conditions for Birsay Bay this week:
The surf forecast for Birsay Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Apr 30) at 7AM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.1m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Birsay Bay in the next 12 days are 4.5m 14s and forecast to arrive on Thursday (May 01) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Wednesday (Apr 30) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 30th Apr) | 3.5ft (1.1m) 11s |
| Best Surf | 7AM (Wed 30th Apr) | 3.5ft (1.1m) 11s |
| Most Powerful | 7PM (Thu 1st May) | 15ft (4.5m) 14s |
Table - best surf conditions forecast for Birsay Bay over the next 12 days.
Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sun 11 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | 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) (?) | 12 | 10 | 10 | 9 | 16 | 15 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 7 | 8 | 9 | 8 | 8 | 7 | 7 | 8 | 9 | 10 | 11 | 12 | 11 | 11 | 10 | 11 | 10 | 10 | 10 | 14 | 12 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 383 | 259 | 230 | 264 | 891 | 6303 | 5691 | 2799 | 1692 | 1117 | 949 | 507 | 379 | 439 | 669 | 703 | 367 | 161 | 377 | 349 | 282 | 1080 | 1249 | 2409 | 2200 | 1479 | 867 | 463 | 467 | 356 | 240 | 186 | 665 | 565 | 287 | 231 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | on | cross- on | on | cross | cross- on | cross- on | on | on | on | on | cross- on | cross- on | cross- on | cross | cross | cross | cross- on | cross- on |
High Tide / height (m) | 10:34PM 3.29 | 11:01AM 3.24 | 11:18PM 3.18 | 11:52AM 2.99 | 12:07AM 3.01 | 12:51PM 2.71 | 1:03AM 2.80 | 2:01PM 2.44 | 2:12AM 2.62 | 3:25PM 2.26 | 3:33AM 2.51 | 4:49PM 2.23 | 4:50AM 2.51 | 5:57PM 2.30 | 5:54AM 2.56 | 6:48PM 2.43 | 6:44AM 2.64 | 7:28PM 2.56 | 7:26AM 2.73 | 8:01PM 2.69 | 8:03AM 2.80 | 8:32PM 2.80 | 8:38AM 2.86 | |||||||||||||
Low Tide / height (m) | 4:52AM -0.04 | 5:14PM 0.18 | 5:40AM 0.10 | 6:00PM 0.46 | 6:32AM 0.31 | 6:50PM 0.75 | 7:33AM 0.55 | 7:49PM 1.00 | 8:47AM 0.75 | 9:04PM 1.17 | 10:16AM 0.82 | 10:34PM 1.20 | 11:36AM 0.75 | 11:51PM 1.10 | 12:33PM 0.64 | 12:45AM 0.95 | 1:15PM 0.53 | 1:28AM 0.80 | 1:50PM 0.44 | 2:04AM 0.67 | 2:22PM 0.39 | 2:37AM 0.55 | 2:53PM 0.37 | |||||||||||||
Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sun 11 | |||||||||||||||||||||||||
| Sunrise | - | 5:18 | - | - | 5:16 | - | - | 5:13 | - | - | 5:11 | - | - | 5:09 | - | - | 5:05 | - | - | 5:03 | - | - | 5:01 | - | - | 4:58 | - | - | 4:56 | - | - | 4:54 | - | - | 4:52 | - |
| Sunset | - | - | 9:02 | - | - | 9:05 | - | - | 9:07 | - | - | 9:09 | - | - | 9:12 | - | - | 9:14 | - | - | 9:16 | - | - | 9:19 | - | - | 9:21 | - | - | 9:23 | - | - | 9:25 | - | - | 9:28 |
 |  | |  |  |  | |  | | | | | | | | | | | | | | | | | | | | | | | | | |  | | | |
Rain (mm) | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | 1 | - | 4 | - | - |
| Temp. °C | 13 | 16 | 15 | 12 | 9 | 9 | 9 | 9 | 9 | 9 | 7 | 6 | 5 | 6 | 7 | 8 | 9 | 9 | 8 | 8 | 8 | 9 | 9 | 9 | 8 | 9 | 8 | 8 | 9 | 9 | 9 | 8 | 9 | 8 | 8 | 8 |
| Feels °C (?) | 9 | 12 | 12 | 8 | 0 | -1 | -1 | 0 | 0 | 0 | -2 | -2 | -4 | -3 | -1 | -1 | 2 | 2 | 1 | 2 | 3 | 1 | 0 | 1 | -1 | 2 | 0 | 0 | 3 | 5 | 5 | 4 | 6 | 4 | 4 | 4 |
Short Range Forecast: Some drizzle, heaviest during Thu morning. Very mild (max 16°C on Wed morning, min 8°C on Thu morning). Winds increasing (light winds from the S on Tue night, strong winds from the W by Thu afternoon). | Days 3-6 Weather Summary Mostly dry. Mild temperatures (max 9°C on Fri night, min 5°C on Sat night). Mainly strong winds. | Days 6-9 Weather Summary Some drizzle, heaviest during Wed morning. Mild temperatures (max 9°C on Tue night, min 7°C on Mon night). Mainly strong winds. | Long Range Forecast: Light rain (total 5mm), mostly falling on Sat night. Mild temperatures (max 9°C on Fri morning, min 7°C on Sat night). Winds decreasing (fresh winds from the NW on Thu night, light winds from the NNE by Sun afternoon). | |||||||||||||||||||||||||||||||||
- 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)
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 Birsay 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 Birsay Bay Surf forecast
The above surf forecast table for Birsay Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Birsay Bay can be found by selecting the local surf guide option on the grey menu. Our Birsay 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 (Birsay 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 Birsay 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 Orkney Islands? If you are looking for accommodation near Birsay Bay, camping, hotels and holiday cottages in Orkney Islands, consider staying in Kirkwall which is 26 km (16 miles) away. Other places in and around Orkney Islands where you can find information about places to rent, and car hire include Scrabster which is 58 km (36 miles) away and Wick, 79 km (49 miles) away.
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