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Machir Bay (Islay) surfForecast / Scot – Inner Hebrides / UK
12 Day Weather and Surf, issued 6 am Saturday 18 Oct 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 Monday (Oct 20) at 4AM. The primary swell is predicted to be 0.9m and 11s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Machir Bay (Islay) in the next 12 days are 3.0m 8s and forecast to arrive on Friday (Oct 24) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Sunday (Oct 19) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 20th Oct) | 3ft (0.9m) 11s |
| Best Surf | 4AM (Mon 20th Oct) | 3ft (0.9m) 11s |
| Most Powerful | 7AM (Fri 24th Oct) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Machir Bay (Islay) over the next 12 days.
Short Range Forecast Heavy rain (total 44mm), heaviest during Sun morning. Very mild (max 13°C on Sat morning, min 11°C on Sun morning). Winds decreasing (near gales from the SE on Sun morning, calm by Mon night). | Days 3-6 Weather Summary Heavy rain (total 47mm), heaviest during Thu morning. Very mild (max 12°C on Tue morning, min 9°C on Wed night). Winds increasing (light winds from the SW on Wed morning, severe gales from the WNW by Thu night). | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
| 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 (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 11 | 10 | 11 | 11 | 11 | 10 | 10 | 9 | 6 | 6 | 6 | 10 | 5 | 7 | 8 | 8 | 8 | 7 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 3 | 13 | 47 | 40 | 35 | 180 | 130 | 176 | 62 | 33 | 132 | 200 | 118 | 56 | 20 | 133 | 729 | 956 | 1396 | 1097 | 352 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross | glass | cross | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 4:49PM 2.59 | 5:02AM 2.38 | 5:20PM 2.69 | 5:32AM 2.51 | 5:48PM 2.74 | 6:00AM 2.61 | 6:15PM 2.75 | 6:28AM 2.67 | 6:42PM 2.71 | 6:56AM 2.68 | 7:10PM 2.63 | 7:25AM 2.64 | 7:38PM 2.51 | ||||||||
Low Tide / height (m) | 10:22AM 0.44 | 10:58PM 0.46 | 10:59AM 0.32 | 11:27PM 0.34 | 11:32AM 0.23 | 11:55PM 0.26 | 12:02PM 0.19 | 12:21AM 0.22 | 12:32PM 0.20 | 12:47AM 0.23 | 1:01PM 0.25 | 1:13AM 0.28 | 1:30PM 0.35 | 1:39AM 0.37 | |||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
| Sunrise | 8:00 | - | - | 8:03 | - | - | 8:04 | - | - | 8:07 | - | - | 8:08 | - | - | 8:11 | - | - | 8:14 | - | - |
| Sunset | - | 6:19 | - | - | 6:16 | - | - | 6:14 | - | - | 6:12 | - | - | 6:08 | - | - | 6:07 | - | - | 6:05 | - |
 |  |  |  |  |  |  | | | | |  | | | | | | |  |  |  | |
Rain (mm) | - | - | 14 | 21 | 7 | 1 | - | - | 1 | - | - | - | - | - | 12 | 14 | 8 | 13 | 3 | 3 | 5 |
| Temp. °C | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 11 | 11 | 11 | 12 | 11 | 12 |
| Feels °C (?) | 5 | 5 | 3 | 2 | 6 | 9 | 11 | 12 | 11 | 4 | 4 | 4 | 9 | 9 | 1 | 1 | -1 | -2 | 1 | 0 | 5 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Scot - Inner Hebrides
The wind is still cross-off at Machir Bay (Islay) (moderate winds from the SE at Islay:portEllen 17 km from Machir Bay (Islay)). 0.1m 11s groundswell from the WSW to make surfable waves.
17 km away, 59 min ago
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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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