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Machir Bay (Islay) surfForecast / Scot – Inner Hebrides / UK
12 Day Weather and Surf, issued 12 pm Saturday 17 May 2025 BST
Best Forecast Surf Conditions for Machir Bay (Islay) this week:
The surf forecast for Machir Bay (Islay) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 17) at 10PM. The primary swell is predicted to be 2ft and 12s period with a secondary swell of 1ft and 10s. Another secondary swell of 1ft and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Machir Bay (Islay) in the next 12 days are 5ft 9s and forecast to arrive on Saturday (May 24) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3ft 4s period and expected on Monday (May 19) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 17th May) | 2ft (0.6m) 12s |
| Best Surf | 10PM (Sat 17th May) | 2ft (0.6m) 12s |
| Most Powerful | 7AM (Sat 24th May) | 5ft (1.6m) 9s |
Table - best surf conditions forecast for Machir Bay (Islay) over the next 12 days.
Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | |||||||||||||||||||||||||
| 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 | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 12 | 11 | 10 | 6 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 5 | 8 | 8 | 8 | 9 | 8 | 6 | 9 | 9 | 13 | 12 | 13 | 13 | 13 | 12 | 10 | 10 | 9 | 9 | 8 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 53 | 52 | 137 | 93 | 57 | 43 | 31 | 72 | 55 | 58 | 53 | 53 | 48 | 28 | 30 | 23 | 22 | 24 | 40 | 49 | 162 | 320 | 327 | 957 | 1406 | 2843 | 5256 | 4586 | 2665 | 1587 | 885 | 528 | 281 | 128 | 73 | 94 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross | off | glass | cross- on | off | off | glass | off | glass | cross- on | cross- on | cross | cross- on | cross | cross | cross- on | cross- on | on | cross- on | cross- off | on | cross- on | cross- on | cross- off | cross- off | off | cross | cross | cross- off | cross | on | cross- off | cross- off | cross- off | cross- off |
High Tide / height (ft) | 9:18PM 7.48 | 9:26AM 6.92 | 10:08PM 7.15 | 10:18AM 6.53 | 11:11PM 6.96 | 11:26AM 6.23 | 12:27AM 7.02 | 12:50PM 6.23 | 1:42AM 7.42 | 2:10PM 6.56 | 2:47AM 7.97 | 3:14PM 7.15 | 3:42AM 8.53 | 4:07PM 7.84 | 4:32AM 8.99 | 4:56PM 8.5 | 5:19AM 9.25 | 5:42PM 9.02 | 6:05AM 9.29 | 6:27PM 9.35 | 6:50AM 9.09 | 7:13PM 9.42 | ||||||||||||||
Low Tide / height (ft) | 2:47PM 1.87 | 3:17AM 2.66 | 3:33PM 2.17 | 4:13AM 3.02 | 4:31PM 2.43 | 5:27AM 3.18 | 5:42PM 2.56 | 6:49AM 3.02 | 6:58PM 2.43 | 8:01AM 2.56 | 8:06PM 2.03 | 9:01AM 1.97 | 9:06PM 1.54 | 9:52AM 1.35 | 10:01PM 0.98 | 10:39AM 0.82 | 10:53PM 0.52 | 11:23AM 0.46 | 11:43PM 0.26 | 12:07PM 0.3 | 12:32AM 0.23 | 12:52PM 0.3 | 1:22AM 0.49 | |||||||||||||
Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | |||||||||||||||||||||||||
| Sunrise | 5:11 | - | - | 5:09 | - | - | 5:07 | - | - | 5:05 | - | - | 5:03 | - | - | 5:03 | - | - | 5:01 | - | - | 5:00 | - | - | 4:58 | - | - | 4:56 | - | - | 4:56 | - | - | 4:54 | - | - |
| Sunset | - | 9:34 | - | - | 9:35 | - | - | 9:37 | - | - | 9:38 | - | - | 9:40 | - | - | 9:42 | - | - | 9:44 | - | - | 9:45 | - | - | 9:46 | - | - | 9:49 | - | - | 9:50 | - | - | 9:52 | - |
 | |  | | | |  | | | | | | | |  |  | |  | | |  |  | | |  | | | | | | | | | | | | |
Rain (in) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.6 | 0.1 | - | - | 0.0 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °F | 57 | 61 | 63 | 59 | 59 | 59 | 55 | 57 | 57 | 55 | 57 | 57 | 50 | 52 | 54 | 48 | 50 | 50 | 52 | 54 | 54 | 54 | 52 | 52 | 50 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 52 | 55 | 55 | 54 |
| Feels °F (?) | 54 | 52 | 54 | 55 | 50 | 54 | 48 | 54 | 54 | 52 | 48 | 48 | 39 | 41 | 43 | 39 | 43 | 43 | 46 | 48 | 45 | 46 | 41 | 46 | 45 | 46 | 45 | 41 | 41 | 43 | 46 | 48 | 50 | 46 | 45 | 46 |
Short Range Forecast: Mostly dry. Very mild (max 63°F on Sat night, min 48°F on Sun night). Winds increasing (calm on Sat morning, fresh winds from the ESE by Sun night). | Days 3-6 Weather Summary Mostly dry. Very mild (max 57°F on Tue afternoon, min 48°F on Wed night). Winds increasing (calm on Tue morning, fresh winds from the NW by Wed afternoon). | Days 6-9 Weather Summary Heavy rain (total 0.8in), heaviest during Fri night. Very mild (max 54°F on Fri afternoon, min 48°F on Sat night). Winds increasing (light winds from the W on Fri morning, fresh winds from the WNW by Sat morning). | Long Range Forecast: Mostly dry. Very mild (max 55°F on Wed morning, min 50°F on Mon night). Winds decreasing (fresh winds from the NNW on Mon morning, calm by Tue night). | |||||||||||||||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Machir Bay (Islay) 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 Machir Bay (Islay) Surf forecast
The above surf forecast table for Machir Bay (Islay) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Machir Bay (Islay) can be found by selecting the local surf guide option on the grey menu. Our Machir Bay (Islay) 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 (Machir Bay (Islay)) 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 Machir Bay (Islay) 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 Inner Hebrides? If you are looking for accommodation near Machir Bay (Islay), camping, hotels and holiday cottages in Inner Hebrides, consider staying in Motherwell which is 50 km (31 miles) away. Other places in and around Inner Hebrides where you can find information about places to rent, and car hire include Campbeltown which is 65 km (40 miles) away, Ballycastle, Tarbert and Ballypatrick.
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