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Machir Bay (Islay) surfForecast / Scot – Inner Hebrides / UK
48hr Weather and Surf, issued 12 am Wednesday 20 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
10.0° C
(Which is normal for this time of year)How big are the waves at Machir Bay (Islay) today?
The current surf forecast for Machir Bay (Islay) at 6AM is: 1.5m 15s primary swell from a West direction and 0.7m 10s secondary swell from a West direction, 0.9m 10s secondary swell from a West-southwest direction (forecast issued at 12:00am May 20). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 5ft (1.6m) | 14s |
| Afternoon (20 May) | 5.5ft (1.7m) | 13s |
| Evening (20 May) | 5ft (1.6m) | 12s |
Table - waves today at Machir Bay (Islay). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 19mm), heaviest on Tue night. Very mild (max 17°C on Fri afternoon, min 10°C on Tue night). Winds decreasing (fresh winds from the SE on Thu night, light winds from the S by Fri afternoon). | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | ||||||||||||||||||||||
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 | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
W 16 | W 15 | WSW 14 | W 14 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | W 11 | W 11 | WSW 11 | W 9 | W 9 | W 10 | W 10 | WSW 10 | W 10 | WSW 10 | WSW 10 | WSW 11 | WSW 12 | WSW 12 | |
314 | 538 | 1240 | 1018 | 1034 | 1003 | 851 | 657 | 636 | 520 | 307 | 242 | 191 | 300 | 256 | 221 | 184 | 163 | 221 | 236 | 236 | 202 | 232 | 228 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | cross-on | on | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | on | |
High Tide | 8:34AM2.52m | 9:05PM2.71m | 9:24AM2.32m | 10:03PM2.55m | 10:20AM2.12m | |||||||||||||||||||
Low Tide | 2:24AM0.26m | 2:38PM0.23m | 3:21AM0.45m | 3:32PM0.37m | 4:25AM0.65m | 4:34PM0.51m | ||||||||||||||||||
 |  |  |  |  | | | |  | |  | | | | | | | | | | | | | | |
 | — | 5:05 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:38 | — | — | — | — | — | — | — | 9:40 | — | — | — | — | — | — | — | 9:42 | — |
2 | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — | 3 | 4 | — | 2 | — | — | — | — | — | — | |
Temp °C | 10 | 10 | 10 | 10 | 10 | 11 | 12 | 12 | 12 | 11 | 11 | 14 | 15 | 16 | 15 | 14 | 14 | 12 | 12 | 13 | 15 | 17 | 16 | 14 |
6 | 6 | 5 | 5 | 5 | 5 | 7 | 9 | 7 | 6 | 5 | 10 | 11 | 12 | 13 | 9 | 8 | 6 | 7 | 9 | 12 | 13 | 15 | 12 | |
Swell 1 Height (m) Direction Period (s) | WSW 9 | W 15 | WSW 14 | W 14 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | W 11 | W 11 | WSW 11 | W 9 | W 9 | W 10 | W 10 | WSW 10 | W 10 | WSW 10 | WSW 10 | WSW 11 | WSW 12 | WSW 12 |
 kJ | 113 | 538 | 1240 | 1018 | 1034 | 865 | 851 | 657 | 636 | 520 | 307 | 242 | 191 | 300 | 256 | 221 | 184 | 163 | 221 | 236 | 236 | 202 | 232 | 228 |
Swell 2 Height (m) Direction Period (s) | W 16 | W 10 | — | — | — | — | — | — | W 7 | — | WNW 8 | WNW 8 | WNW 7 | — | NW 7 | NW 7 | NW 7 | WNW 6 | NW 6 | NW 6 | NW 6 | NW 6 | SSE 4 | SSE 5 |
| kJ | 314 | 94 | — | — | — | — | — | — | 83 | — | 80 | 58 | 33 | — | 8 | 7 | 7 | 4 | 2 | 2 | 2 | 1 | 4 | 2 |
Swell 3 Height (m) Direction Period (s) | SSE 5 | SE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 3 | NW 6 |
| kJ | 3 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 |
Wind waves Height (m) Direction Period (s) | WSW 2 | WSW 10 | SSW 3 | SW 5 | — | W 13 | — | — | — | S 3 | SSE 4 | S 4 | S 3 | SSE 3 | S 3 | SSE 4 | SSE 4 | SE 4 | SSE 4 | SSE 3 | SSE 3 | SSE 3 | — | — |
| kJ | 1 | 163 | 5 | 26 | — | 1003 | — | — | — | 5 | 10 | 9 | 5 | 3 | 5 | 11 | 9 | 10 | 11 | 6 | 5 | 4 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 61 | 14 | 258 | 307 | 72 | 65 | 14 | 16 | 62 | 61 | 14 | 14 | 14 | 71 | 93 | 119 | 93 | 93 | 14 | 14 | 71 | 8 | 14 |
Best forecast wave conditions in Inner Hebrides | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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