Machir Bay (Islay) surfForecast / Scot – Inner Hebrides / UK

information circle48hr Weather and Surf, issued 6 pm Wednesday 20 May 2026 BST
Forecast 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 9PM is: 1.5m 12s primary swell from a West direction and 1.0m 6s secondary swell from a West direction (forecast issued at 06:00pm May 20). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (20 May)--
Afternoon (20 May)5.5ft (1.7m)13s
Evening (20 May)5ft (1.5m)12s

Table - waves today at Machir Bay (Islay). (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 11mm), heaviest on Wed night. Very mild (max 16°C on Fri afternoon, min 10°C on Wed night). Winds decreasing (fresh winds from the SE on Thu night, calm by Fri afternoon).

Wed
20
Thursday
21
Friday
22
Sat
23
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
4 AM
7 AM
10 AM
1 PM
Rating
(10 max)
0
0
1
2
1
0
0
0
1
1
0
0
0
0
1
1
1
1
2
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.7
W
13
1.3
W
13
1.6
W
12
1.5
W
12
1.2
W
12
1.1
W
11
1
W
11
1
W
11
1.3
W
9
1.2
W
9
1
W
10
1
W
10
1
W
10
1
W
10
1
WSW
11
0.9
WSW
11
1
WSW
11
0.9
WSW
10
0.9
WSW
11
0.9
WSW
11
0.9
WSW
10
0.9
WSW
10
0.9
WSW
10
0.9
WSW
9
Wave Graph
Metric surfscale
Energy kJ
1003
556
746
636
390
307
242
233
300
256
184
200
200
204
240
202
218
191
202
198
177
176
173
147
Wind (km/h)
25
WSW
20
WSW
15
SW
15
SE
20
SE
30
SSE
25
S
20
S
20
SE
20
S
25
SSE
35
SE
30
SE
30
SSE
25
SSE
20
SSE
25
SE
5
SSW
10
SE
15
S
10
SSW
15
S
15
S
15
S
cross-on
on
cross-on
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-off
glassy
cross-off
cross
cross-on
cross
cross
cross
High Tide
9:05PM2.71m
9:24AM2.32m
10:03PM2.55m
10:20AM2.12m
11:11PM2.40m
11:28AM1.96m
Low Tide
2:38PM0.23m
3:21AM0.45m
3:32PM0.37m
4:25AM0.65m
4:34PM0.51m
5:38AM0.80m
clear
clear
part cloud
part cloud
cloud
light rain
part cloud
part cloud
cloud
light rain
light rain
cloud
light rain
cloud
part cloud
cloud
cloud
light rain
light rain
rain showers
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
5:03
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:38
9:40
9:42
9:44
2
2
1
1
2
2
1
Temp °C
11
12
12
12
12
10
13
15
15
15
14
13
12
12
13
15
16
14
13
13
13
12
13
14
6
8
8
8
8
4
9
12
12
12
10
7
6
6
9
12
12
13
12
11
11
9
10
11
Swell 1
Height (m)
Direction
Period (s)
1.7
W
13
1.3
W
13
1.6
W
12
1.5
W
12
1.2
W
12
1.1
W
11
1
W
11
1
W
11
1.3
W
9
1.2
W
9
1
W
10
1
W
10
1
W
10
1
W
10
1
WSW
11
0.9
WSW
11
1
WSW
11
0.9
WSW
10
0.9
WSW
11
0.9
WSW
11
0.9
WSW
10
0.9
WSW
10
0.9
WSW
10
0.9
WSW
9
Energy kJ
1003
556
746
636
390
307
242
233
300
256
184
200
200
204
240
202
218
191
202
198
177
176
173
147
Swell 2
Height (m)
Direction
Period (s)
0.8
W
7
0.7
WNW
9
0.8
WNW
8
0.7
WNW
8
0.5
NW
7
0.3
NW
7
0.3
NW
7
0.2
WNW
6
0.1
NW
6
0.1
NW
6
0.5
SE
4
0.2
SSE
4
0.2
SSE
5
0.2
SSE
5
0.1
SE
5
0.1
SE
4
0.1
S
5
0.1
W
16
Energy kJ
66
67
78
55
27
7
7
4
2
1
9
2
2
2
1
1
1
5
Swell 3
Height (m)
Direction
Period (s)
0.1
S
7
0.1
N
8
0.1
NW
6
Energy kJ
1
1
2
Wind waves
Height (m)
Direction
Period (s)
1
W
6
0.4
SSE
2
0.6
SSE
3
0.6
S
4
0.4
SSE
3
0.3
SSE
3
0.5
S
3
0.6
SSE
3
0.7
SE
4
0.8
SSE
4
0.8
SSE
4
0.6
SSE
4
0.5
S
3
0.3
SSE
5
0.2
SSE
3
Energy kJ
79
2
9
9
4
2
5
9
14
21
20
11
6
6
1
Nearest Offshore or Glassy
Rating
(10 max)
2
4
1
2
2
2
1
1
1
1
2
1
2
1
1
1
1
2
2
2
1
1
1
1
Distance (km)
61
244
72
59
52
14
61
61
14
14
0
79
282
124
106
93
14
71
71
0
14
14
14
14
Best forecast wave conditions in Inner Hebrides
Rating
(10 max)
3
3
1
2
4
3
1
3
3
3
1
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
2
2
4
4
3
4
4
3
3
4
3
3
2
3
3
3
3
3
3
2
3
2
2
Header Global
Rating
(10 max)
4
4
4
5
5
5
5
5
5
5
5
5
4
5
5
7
7
7
6
5
5
5
5
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Machir Bay (Islay) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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