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

information circle48hr Weather and Surf, issued 6 pm Tuesday 19 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 12AM is: 0.8m 16s primary swell from a West direction and 0.8m 9s secondary swell from a West-southwest direction (forecast issued at 06:00pm May 19). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (20 May)5.5ft (1.7m)14s
Afternoon (20 May)4.5ft (1.4m)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

Heavy rain (total 21mm), heaviest during Tue night. Very mild (max 17°C on Thu afternoon, min 10°C on Tue night). Mainly strong winds.

Tue
19
Wednesday
20
Thursday
21
Fri
22
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
0
0
0
1
0
0
0
0
1
2
2
0
0
0
1
1
0
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)
0.4
WNW
9
0.6
W
9
0.4
W
16
0.8
W
16
1.1
W
15
1.7
WSW
14
1.9
WSW
14
1.9
WSW
13
1.4
W
13
1.3
W
13
1.6
W
12
1.5
W
12
1.4
W
12
1.1
W
11
1
W
11
0.9
WSW
11
1.3
W
10
1.2
WSW
9
1.1
W
9
0.9
WSW
9
0.9
WSW
10
0.9
WSW
10
1
WSW
11
0.9
WSW
11
Wave Graph
Metric surfscale
Energy kJ
27
56
84
314
538
1240
1341
1308
673
556
746
636
520
307
242
191
306
265
212
147
157
173
249
202
Wind (km/h)
25
SE
15
SE
10
S
15
WSW
20
SSW
25
S
40
WSW
30
WSW
25
WSW
15
WSW
15
WSW
20
SE
25
SE
30
SSE
30
SSE
25
S
15
S
15
SSE
25
SSE
25
SE
30
SE
30
SE
25
SE
25
SE
cross-off
cross-off
cross
on
cross-on
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
High Tide
8:13PM2.83m
8:34AM2.52m
9:05PM2.71m
9:24AM2.32m
10:03PM2.55m
10:20AM2.12m
Low Tide
1:49PM0.12m
2:24AM0.26m
2:38PM0.23m
3:21AM0.45m
3:32PM0.37m
4:25AM0.65m
light rain
light rain
mod rain
light rain
light rain
cloud
rain showers
clear
clear
clear
cloud
cloud
cloud
light rain
part cloud
part cloud
part cloud
light rain
light rain
light rain
cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:03
5:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:37
9:38
9:40
9:42
3
2
6
1
1
1
2
1
3
1
Temp °C
11
11
11
10
10
10
10
10
11
12
12
12
12
11
14
15
17
15
14
14
12
12
13
15
6
8
10
7
6
5
2
4
5
8
9
8
7
5
9
11
14
13
10
10
6
6
8
11
Swell 1
Height (m)
Direction
Period (s)
0.4
WNW
9
0.6
W
9
0.7
WSW
9
0.8
W
16
1.1
W
15
1.7
WSW
14
1.5
W
14
1.4
W
13
1.4
W
13
1.3
W
13
1.6
W
12
1.5
W
12
1.4
W
12
1.1
W
11
1
W
11
0.9
WSW
11
1.3
W
10
1.2
WSW
9
1.1
W
9
0.9
WSW
9
0.9
WSW
10
0.9
WSW
10
1
WSW
11
0.9
WSW
11
Energy kJ
27
56
84
314
538
1240
881
694
673
556
746
636
520
307
242
191
306
265
212
147
157
173
249
202
Swell 2
Height (m)
Direction
Period (s)
0.4
WSW
9
0.3
W
13
0.4
W
16
0.8
WSW
9
0.8
WSW
10
0.3
SSE
4
1.2
W
6
1
W
7
0.9
W
7
0.8
WNW
9
0.7
WNW
8
0.6
WNW
8
0.4
NW
8
0.4
NW
7
0.3
NW
7
0.2
WNW
7
0.2
WNW
6
0.1
NW
6
0.2
WNW
6
0.1
NW
6
Energy kJ
25
31
80
113
123
2
123
92
79
88
61
42
15
13
7
4
4
2
4
1
Swell 3
Height (m)
Direction
Period (s)
0.2
W
13
0.2
WNW
9
0.3
SSE
5
0.2
SSE
5
0.4
SE
5
0.2
SSE
6
Energy kJ
14
8
6
3
6
4
Wind waves
Height (m)
Direction
Period (s)
0.7
SSE
4
0.4
SSE
6
0.4
SW
3
0.5
S
3
1.9
WSW
14
1.9
WSW
13
1.3
W
6
0.4
SSE
3
0.6
SSE
3
0.6
SSE
4
0.5
S
3
0.5
S
3
0.4
SSE
3
0.5
SSE
3
0.5
SSE
3
0.7
SE
4
0.8
SSE
4
0.6
SSE
4
0.5
SSE
3
Energy kJ
12
12
3
4
1341
1308
130
2
9
10
6
6
3
6
7
12
20
10
6
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
2
1
4
1
1
2
2
1
1
1
1
2
1
2
1
2
2
1
2
Distance (km)
71
16
14
14
61
14
236
244
72
65
14
14
63
61
61
14
8
14
88
93
124
93
93
86
Best forecast wave conditions in Inner Hebrides
Rating
(10 max)
1
2
3
2
2
4
1
2
3
2
2
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
2
3
2
4
2
2
2
2
4
4
4
3
3
2
3
3
2
3
3
3
3
3
Header Global
Rating
(10 max)
4
4
4
5
5
5
4
4
4
5
5
4
4
5
5
4
4
4
4
5
5
5
7
8
  • 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

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