Surf Forecasts:
Machir Bay (Islay) surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 10AM (local time) - 3.5ft (1.0m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 1AM (local time) - 15ft (4.5m), 12s period, W swell with 5,159 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 4AM (local time) - 2.5ft (0.8m), 11s period with WSW 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 Thursday (Aug 13) at 4AM. The primary swell is predicted to be 0.8m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Machir Bay (Islay) in the next 16 days are 4.5m 12s and forecast to arrive on Wednesday (Aug 19) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Wednesday (Aug 12) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Thu 13th Aug) | 2.5ft (0.8m) 11s |
| Best Surf | 10AM (Thu 13th Aug) | 3.5ft (1.0m) 10s |
| Most Powerful | 1AM (Wed 19th Aug) | 15ft (4.5m) 12s |
Table - best surf conditions forecast for Machir Bay (Islay) over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Thu afternoon. Warm (max 21°C on Wed afternoon, min 14°C on Thu night). Winds decreasing (fresh winds from the SE on Tue night, calm by Thu afternoon). | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Sun night. Very mild (max 14°C on Fri night, min 11°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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) | WSW 10 | WSW 10 | WSW 9 | W 10 | WSW 10 | WSW 10 | W 9 | W 9 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | NW 7 | W 9 | W 8 | WSW 8 | WSW 8 | WSW 8 | W 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 104 | 98 | 66 | 216 | 167 | 123 | 127 | 74 | 48 | 229 | 221 | 213 | 117 | 70 | 23 | 25 | 111 | 300 | 437 | 893 | 5159 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | on | cross-off | cross | cross-on |
High Tide | 5:52AM2.55m | 6:19PM2.94m | 6:33AM2.68m | 7:00PM3.07m | 7:11AM2.74m | 7:38PM3.09m | 7:47AM2.74m | 8:14PM3.01m | 8:22AM2.68m | 8:49PM2.85m | 8:57AM2.57m | 9:22PM2.62m | 9:31AM2.41m | 9:55PM2.36m | |||||||
Low Tide | 11:52AM0.11m | 00:28AM0.18m | 12:34PM-0.05m | 1:09AM0.11m | 1:14PM-0.13m | 1:47AM0.11m | 1:53PM-0.11m | 2:24AM0.18m | 2:30PM0.01m | 2:59AM0.31m | 3:07PM0.20m | 3:33AM0.47m | 3:45PM0.44m | ||||||||
 | |  |  | |  |  | | | |  | | | |  |  | | | | |  | |
 | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — |
 | — | — | 9:08 | — | — | 9:07 | — | — | 9:05 | — | — | 9:02 | — | — | 9:00 | — | 8:58 | — | — | 8:55 | — |
mm | — | — | — | 2 | 4 | — | — | — | — | — | — | — | — | — | 11 | 3 | — | — | 3 | 2 | 4 |
Temp °C | 19 | 21 | 20 | 18 | 18 | 17 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 14 | 14 | 16 | 15 |
Feels °C | 15 | 18 | 18 | 17 | 19 | 18 | 12 | 12 | 10 | 10 | 9 | 11 | 12 | 11 | 12 | 10 | 11 | 11 | 8 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 10 | WSW 9 | W 10 | WSW 10 | WSW 10 | W 9 | W 9 | W 8 | — | — | WNW 8 | WNW 8 | WNW 7 | NW 7 | W 9 | W 8 | SSE 4 | SE 4 | W 16 | — |
| kJ | 104 | 98 | 66 | 216 | 167 | 123 | 127 | 74 | 48 | — | — | 213 | 117 | 70 | 23 | 25 | 111 | 2 | 1 | 5 | — |
Swell 2 Height (m) Direction Period (s) | NW 6 | — | WSW 12 | — | — | — | — | — | — | — | — | — | W 8 | WSW 7 | W 6 | NW 6 | NW 6 | W 18 | S 5 | W 16 | — |
| kJ | 2 | — | 46 | — | — | — | — | — | — | — | — | — | 1 | 10 | 7 | 6 | 2 | 6 | 1 | 5 | — |
Swell 3 Height (m) Direction Period (s) | — | — | SSE 4 | — | — | — | — | — | — | — | — | — | — | — | W 10 | W 6 | — | — | — | — | — |
| kJ | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | 8 | 2 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSE 3 | — | — | — | — | WNW 4 | WNW 4 | WNW 5 | WNW 8 | WNW 8 | — | — | — | — | S 3 | S 4 | WSW 8 | WSW 8 | WSW 8 | W 12 |
| kJ | 10 | 4 | — | — | — | — | 5 | 8 | 46 | 229 | 221 | — | — | — | — | 3 | 14 | 300 | 437 | 893 | 5159 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 93 | 71 | 16 | 0 | 14 | 14 | 478 | 478 | 333 | 368 | 878 | 65 | 65 | 71 | 71 | 71 | 187 | 71 | 61 | 14 | 65 |
Best forecast wave conditions in Inner Hebrides | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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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