Surf Forecasts:
Machir Bay (Islay) surf forecast from 23 Aug 2026:
- Best quality surf: Monday 24 Aug, 4AM (local time) - 4ft (1.2m), 11s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 7AM (local time) - 4.5ft (1.3m), 12s period, WNW swell with 454 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 10PM (local time) - 2.5ft (0.7m), 7s period with WNW swell.
Best Forecast Surf Conditions for Machir Bay (Islay) this week:
The surf forecast for Machir Bay (Islay) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 10PM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.4m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Machir Bay (Islay) in the next 16 days are 1.3m 12s and forecast to arrive on Monday (Aug 24) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Aug 26) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 23rd Aug) | 2.5ft (0.7m) 7s |
| Best Surf | 4AM (Mon 24th Aug) | 4ft (1.2m) 11s |
| Most Powerful | 7AM (Mon 24th Aug) | 4.5ft (1.3m) 12s |
Table - best surf conditions forecast for Machir Bay (Islay) over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 18°C on Mon night, min 13°C on Tue night). Winds increasing (calm on Sun afternoon, fresh winds from the E by Tue night). | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Thu night. Very mild (max 19°C on Wed afternoon, min 14°C on Wed morning). Winds decreasing (strong winds from the E on Wed night, light winds from the NE by Thu night). | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WNW 6 | NW 6 | WNW 11 | WNW 11 | W 11 | W 11 | W 10 | W 9 | W 9 | WSW 8 | WSW 8 | W 10 | W 10 | W 9 | WNW 8 | WNW 8 | NW 6 | WNW 7 | WNW 7 | NW 7 | NNW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 18 | 180 | 431 | 381 | 372 | 230 | 136 | 56 | 22 | 19 | 50 | 90 | 59 | 22 | 13 | 51 | 37 | 105 | 112 | 196 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | off | cross-off | cross-off | off | off | cross-off | off | off | off | off | off | off | cross-off | cross-on | cross-on | cross-on | cross | cross-on | cross |
High Tide | 3:49PM1.91m | 4:09AM1.88m | 4:40PM2.12m | 4:50AM2.07m | 5:16PM2.33m | 5:23AM2.27m | 5:48PM2.54m | 5:54AM2.43m | 6:18PM2.71m | 6:24AM2.57m | 6:47PM2.84m | 6:55AM2.67m | 7:17PM2.91m | ||||||||
Low Tide | 10:02PM1.02m | 10:14AM0.85m | 10:51PM0.85m | 10:57AM0.64m | 11:26PM0.67m | 11:30AM0.44m | 11:56PM0.51m | 11:59AM0.27m | 00:25AM0.38m | 12:27PM0.14m | 00:52AM0.27m | 12:56PM0.05m | 1:20AM0.20m | ||||||||
 |  |  | | |  | | |  |  | | | |  |  | | | | | | | |
 | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — |
 | — | 8:43 | — | — | 8:40 | — | — | 8:38 | — | — | 8:36 | — | — | 8:34 | — | — | 8:30 | — | — | 8:28 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 10 | 4 | 3 | 1 | — | — | — |
Temp °C | 14 | 15 | 15 | 14 | 16 | 18 | 16 | 18 | 16 | 15 | 19 | 18 | 17 | 18 | 16 | 14 | 14 | 15 | 15 | 14 | 14 |
Feels °C | 13 | 13 | 13 | 10 | 12 | 15 | 12 | 15 | 10 | 10 | 17 | 13 | 14 | 16 | 15 | 11 | 10 | 12 | 13 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | WNW 6 | NW 6 | WNW 11 | WNW 11 | W 11 | W 11 | W 10 | W 9 | W 9 | WSW 8 | WSW 8 | W 10 | W 10 | W 9 | WNW 8 | WNW 8 | NW 6 | WNW 7 | — | — | — |
| kJ | 13 | 18 | 180 | 431 | 381 | 372 | 230 | 136 | 56 | 22 | 19 | 50 | 90 | 59 | 22 | 12 | 51 | 37 | — | — | — |
Swell 2 Height (m) Direction Period (s) | WSW 8 | WNW 8 | W 15 | — | — | — | — | — | WNW 8 | NW 8 | WNW 7 | WSW 7 | NW 7 | — | — | WNW 8 | ESE 5 | SSE 5 | SE 5 | — | — |
| kJ | 14 | 13 | 4 | — | — | — | — | — | 13 | 9 | 5 | 5 | 2 | — | — | 13 | 20 | 3 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | WNW 9 | WSW 9 | W 10 | — | — | — | — | — | — | — | — | NW 7 | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 8 | 2 | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SE 3 | SE 4 | SE 3 | ESE 3 | E 4 | ESE 4 | ESE 4 | ESE 3 | ESE 3 | ESE 3 | — | NW 4 | ESE 3 | N 3 | WNW 7 | NW 7 | NNW 6 |
| kJ | — | — | — | — | 3 | 4 | 5 | 4 | 17 | 27 | 11 | 10 | 3 | 3 | — | 7 | 3 | 4 | 105 | 112 | 196 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 131 | 86 | 0 | 14 | 62 | 0 | 0 | 16 | 76 | 268 | 249 | 76 | 136 | 0 | 246 | 236 | 228 | 273 | 268 | 311 | 115 |
Best forecast wave conditions in Inner Hebrides | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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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