Machir Bay (Islay) Surf Break

Lat Long: 55.78° N 6.46° W

Machir Bay (Islay) 48 hour detailed Surf Forecast

Issued: 12 am 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Machir Bay (Islay) sea temperature is
13.9° C
0.2° 

Machir Bay (Islay) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Machir Bay (Islay) today (21 Jul):

  • Morning surf: Morning surf (21 Jul, local time) - 4.5ft (1.3m), 6s period with NNW swell.
  • Afternoon surf: Afternoon surf (21 Jul, local time) - 4ft (1.2m), 5s period with NW swell.
  • Evening surf: Evening surf (21 Jul, local time) - 4ft (1.2m), 5s period with NW swell.

The current surf forecast for Machir Bay (Islay) at 8AM is: 1.3m 6s primary swell from a North-northwest direction and 0.5m 10s secondary swell from a West direction, 0.1m 18s secondary swell from a West direction (forecast issued at 12:00am July 21). The wind direction is predicted to be cross-shore.

Time (BST) & DateWave HeightWave Period
Morning (21 Jul)4.5ft (1.3m)6s
Afternoon (21 Jul)4ft (1.2m)5s
Evening (21 Jul)4ft (1.2m)5s

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


Short Range Forecast

Mostly dry. Very mild (max 14°C on Wed morning, min 11°C on Tue morning). Winds decreasing (fresh winds from the NNW on Tue morning, light winds from the WNW by Thu morning).

Tuesday
21
Wednesday
22
Thursday
23
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
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
NW
5
1.2
NNW
5
1.3
NNW
5
1.4
NNW
6
1.3
NNW
5
1.2
NW
5
1.2
NW
5
1.2
NW
5
1.2
NW
5
1.2
NW
5
1.1
NW
5
1
NW
5
0.8
NW
7
0.8
NW
7
0.8
NW
7
0.8
NW
7
0.7
NW
7
0.7
NW
7
0.6
NW
7
0.5
NW
7
0.5
NW
6
0.6
WNW
6
0.6
WNW
6
0.8
WNW
6
Wave Graph
Metric surfscale
Energy kJ
50
69
97
114
94
76
76
76
79
76
60
49
69
67
65
63
44
43
35
21
20
26
26
40
Wind (km/h)
25
NNW
25
NNW
30
NNW
35
NNW
30
NNW
30
NNW
30
NNW
30
NNW
30
NNW
30
NNW
20
NNW
20
NNW
25
NNW
25
NW
20
NNW
20
NNW
15
NNW
15
NW
15
NW
10
WNW
15
W
15
W
20
W
20
W
Wind State
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
High Tide
10:48PM2.39m
10:58AM2.12m
11:34PM2.16m
11:53AM1.98m
00:32AM1.96m
1:10PM1.88m
Low Tide
5:07AM0.72m
5:20PM0.66m
5:58AM0.86m
6:20PM0.86m
7:00AM0.96m
7:35PM0.99m
clear
clear
part cloud
cloud
part cloud
part cloud
clear
cloud
part cloud
part cloud
clear
cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:11
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:52
9:51
9:49
 mm
Temp °C
12
13
12
11
11
12
11
11
12
12
12
13
14
14
14
14
14
14
13
13
14
14
14
14
Feels °C
8
9
7
5
5
6
5
5
7
7
9
10
10
10
11
12
12
12
11
12
12
12
12
12
  • 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
How to use the Wavefinder 

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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