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Machir Bay (Islay) surfForecast / Scot – Inner Hebrides / UK
48hr Weather and Surf, issued 6 am Monday 18 May 2026 BSTForecast update in hr min s Forecast update imminent
Machir Bay (Islay) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Machir Bay (Islay) sea temperature is
9.8° C
(Which is slightly cooler than normal)How big are the waves at Machir Bay (Islay) today?
The current surf forecast for Machir Bay (Islay) at 1PM is: 1.5m 11s primary swell from a West direction (forecast issued at 06:00am May 18). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.6m) | 11s |
| Afternoon (18 May) | 4.5ft (1.4m) | 11s |
| Evening (18 May) | 4ft (1.2m) | 10s |
Table - waves today at Machir Bay (Islay). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 24mm), heaviest during Mon night. Very mild (max 12°C on Wed night, min 9°C on Mon morning). Winds increasing (light winds from the SE on Mon morning, near gales from the SE by Mon night). | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
W 12 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | WNW 9 | W 9 | W 16 | W 16 | W 15 | W 14 | W 14 | WSW 13 | WSW 13 | W 13 | W 12 | W 12 | |
857 | 701 | 599 | 517 | 434 | 290 | 239 | 194 | 122 | 92 | 64 | 58 | 27 | 39 | 80 | 314 | 538 | 931 | 1298 | 1474 | 1249 | 1070 | 425 | 710 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross | cross | on | on | cross-on | cross-on | cross-off | |
High Tide | 7:02AM2.82m | 7:26PM2.88m | 7:47AM2.70m | 8:13PM2.83m | 8:34AM2.52m | 9:05PM2.71m | ||||||||||||||||||
Low Tide | 1:04PM0.06m | 1:32AM0.11m | 1:49PM0.12m | 2:24AM0.26m | 2:38PM0.23m | |||||||||||||||||||
 |  |  | | | |  |  | |  | | | | | | | | | |  |  | | | | |
 | 5:09 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | 5:03 |
 | — | — | — | — | — | 9:35 | — | — | — | — | — | — | — | 9:37 | — | — | — | — | — | — | — | 9:38 | — | 9:40 |
— | — | — | — | — | — | — | 2 | 4 | 2 | 1 | 2 | 1 | 4 | 1 | — | — | — | 2 | 1 | — | — | — | — | |
Temp °C | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 10 | 10 | 10 | 9 | 11 | 11 | 11 | 11 | 12 | 12 |
5 | 6 | 6 | 6 | 4 | 1 | 0 | -1 | -2 | 0 | 4 | 4 | 6 | 7 | 8 | 6 | 5 | 3 | 5 | 5 | 5 | 5 | 8 | 9 | |
Swell 1 Height (m) Direction Period (s) | W 12 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | WNW 9 | W 9 | WSW 9 | W 16 | W 15 | W 14 | W 14 | W 13 | W 13 | W 13 | W 12 | W 12 |
 kJ | 857 | 701 | 599 | 517 | 434 | 290 | 239 | 194 | 122 | 92 | 64 | 58 | 27 | 39 | 64 | 314 | 538 | 931 | 1298 | 1127 | 1094 | 1070 | 425 | 710 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 16 | W 15 | W 15 | W 15 | W 14 | WSW 9 | W 13 | W 16 | W 9 | WSW 10 | — | — | SSE 4 | SSE 4 | SSE 5 | W 7 | — |
| kJ | — | — | — | — | — | — | — | 5 | 4 | 4 | 4 | 16 | 15 | 14 | 80 | 83 | 96 | — | — | 5 | 4 | 2 | 147 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 13 | WNW 9 | SSE 5 | SSE 5 | — | — | — | — | — | — | SSE 5 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 14 | 8 | 9 | 3 | — | — | — | — | — | — | 3 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SE 2 | SE 4 | SE 4 | SE 5 | SE 6 | SSE 6 | SSE 5 | SSE 4 | SSE 4 | SSE 4 | — | SW 3 | SW 4 | SW 4 | S 4 | WSW 13 | WSW 13 | — | — | SSE 6 |
| kJ | — | — | — | — | 1 | 13 | 36 | 99 | 178 | 196 | 69 | 25 | 16 | 7 | — | 3 | 23 | 34 | 14 | 1474 | 1249 | — | — | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 14 | 62 | 62 | 62 | 246 | 119 | 62 | 93 | 79 | 93 | 71 | 52 | 65 | 14 | 14 | 61 | 299 | 72 | 61 | 54 | 0 |
Best forecast wave conditions in Inner Hebrides | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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