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

information circle48hr Weather and Surf, issued 12 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 4PM is: 0.4m 9s primary swell from a West-northwest direction and 0.4m 9s secondary swell from a West-southwest direction (forecast issued at 12:00pm May 19). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (BST) & DateWave HeightWave Period
Morning (19 May)2.5ft (0.7m)10s
Afternoon (19 May)1.5ft (0.4m)9s
Evening (19 May)1.5ft (0.4m)16s

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 26mm), heaviest during Wed night. Very mild (max 16°C on Thu afternoon, min 10°C on Tue night). Mainly strong winds.

Tue
19
Wednesday
20
Thursday
21
Fri
22
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
4 AM
7 AM
Rating
(10 max)
0
0
0
0
1
1
0
0
0
0
0
0
2
2
0
0
0
0
0
1
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)
0.6
W
9
0.6
W
9
0.4
WNW
9
0.6
W
9
0.4
W
16
0.8
W
16
1.1
W
15
1.5
W
14
2
WSW
14
2.3
WSW
13
1.4
WSW
13
1.7
W
13
1.5
W
12
1.4
WSW
12
1.2
W
12
1.1
W
11
1
W
11
1
W
11
1.4
WSW
10
1.2
WSW
9
1
W
9
0.9
WSW
10
0.9
WSW
10
0.9
WSW
10
Wave Graph
Metric surfscale
Energy kJ
64
58
27
56
84
314
538
931
1548
1765
690
957
672
569
397
307
242
233
363
265
180
157
160
170
Wind (km/h)
30
SE
30
SE
25
SE
20
SE
15
SSE
10
WSW
20
SSW
25
S
45
SW
30
WSW
25
WSW
15
WSW
10
S
15
SE
25
SE
25
SSE
25
S
25
S
20
S
20
SSE
30
SSE
30
SSE
30
ESE
25
SE
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross
cross-on
on
on
on
cross
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
7:47AM2.70m
8:13PM2.83m
8:34AM2.52m
9:05PM2.71m
9:24AM2.32m
10:03PM2.55m
Low Tide
1:49PM0.12m
2:24AM0.26m
2:38PM0.23m
3:21AM0.45m
3:32PM0.37m
4:25AM0.65m
light rain
light rain
light rain
rain showers
light rain
light rain
part cloud
part cloud
light rain
clear
clear
clear
part cloud
cloud
light rain
mod rain
cloud
part cloud
cloud
light rain
light rain
cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
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
1
1
3
1
2
2
1
1
6
2
4
1
1
Temp °C
11
11
11
11
10
10
10
10
10
10
11
12
12
12
11
12
14
15
16
14
15
14
13
13
5
5
6
7
7
8
6
5
1
4
6
8
10
9
6
7
10
11
13
11
10
8
7
8
Swell 1
Height (m)
Direction
Period (s)
0.6
W
9
0.6
W
9
0.4
WNW
9
0.6
W
9
0.7
WSW
9
0.8
WSW
9
1.1
W
15
1.5
W
14
1.5
W
14
1.3
W
13
1.4
WSW
13
1.7
W
13
1.5
W
12
1.4
WSW
12
1.2
W
12
1.1
W
11
1
W
11
1
W
11
1.4
WSW
10
1.2
WSW
9
1
W
9
0.9
WSW
10
0.9
WSW
10
0.9
WSW
10
Energy kJ
64
58
27
56
84
113
538
931
881
599
690
957
672
569
397
307
242
233
363
265
180
157
160
170
Swell 2
Height (m)
Direction
Period (s)
0.1
W
15
0.2
W
14
0.4
WSW
9
0.3
W
13
0.4
W
16
0.8
W
16
0.8
W
10
0.2
SSE
4
0.4
WNW
6
0.6
WNW
8
0.6
WNW
8
0.4
NW
8
0.4
NW
7
0.3
NW
7
0.3
NW
7
0.2
WNW
7
0.2
WNW
7
Energy kJ
4
16
25
31
80
314
123
1
16
44
43
15
14
7
7
4
4
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
SSE
7
Energy kJ
14
8
6
2
15
Wind waves
Height (m)
Direction
Period (s)
0.9
SSE
4
0.8
SSE
4
0.7
SSE
4
0.4
SSE
3
0.9
WSW
10
0.7
SW
4
2
WSW
14
2.3
WSW
13
1.3
WSW
7
0.4
SSE
3
0.6
SSE
4
0.8
S
4
0.5
S
4
0.3
SSE
4
0.3
SSE
3
0.5
SSE
3
0.5
SSE
3
0.6
SSE
3
0.7
SE
4
Energy kJ
25
19
12
4
163
18
1548
1765
157
3
10
18
7
3
1
5
6
8
14
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
2
4
3
1
1
3
2
1
1
1
1
1
2
2
1
2
2
Distance (km)
128
223
71
62
0
14
65
14
86
217
72
61
8
14
62
61
14
14
14
71
124
93
119
76
Best forecast wave conditions in Inner Hebrides
Rating
(10 max)
1
2
3
2
2
4
4
3
1
1
4
3
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
1
2
2
3
3
4
4
2
1
1
4
4
3
4
2
2
4
3
2
3
2
3
Header Global
Rating
(10 max)
4
4
4
4
5
5
5
5
4
4
4
5
5
4
4
5
5
4
4
5
4
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

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