Machir Bay (Islay) Surf Break

Lat Long: 55.78° N 6.46° W

Machir Bay (Islay) 48 hour detailed Surf Forecast

Issued: 6 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Machir Bay (Islay) sea temperature is
14.9° C
0.6° 

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 Aug):

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

The current surf forecast for Machir Bay (Islay) at 11AM is: 1.3m 6s primary swell from a North-northwest direction and 0.5m 8s secondary swell from a West direction, 0.1m 15s secondary swell from a West direction (forecast issued at 06:00am August 21). The wind direction is predicted to be cross-shore.

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

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


Short Range Forecast

Mostly dry. Very mild (max 15°C on Sat afternoon, min 13°C on Fri morning). Winds decreasing (fresh winds from the N on Fri morning, calm by Sun afternoon).

Friday
21
Saturday
22
Sunday
23
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
1
1
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)
1.3
NNW
6
1.3
NNW
6
1.3
NNW
6
1.3
NNW
6
1.1
NNW
5
1.3
NNW
5
1.3
NNW
5
1.3
NNW
5
1.1
NNW
5
0.9
NNW
5
0.7
NW
5
0.5
NW
5
0.3
WSW
9
0.3
WSW
9
0.3
WSW
9
0.3
WSW
9
0.4
WNW
6
0.4
WNW
6
0.5
WNW
6
0.7
WNW
6
0.7
WNW
7
0.7
WNW
7
0.8
WNW
7
Wave Graph
Metric surfscale
Energy kJ
108
104
108
104
69
83
83
83
59
36
22
14
15
15
15
15
14
14
19
33
40
40
56
Wind (km/h)
30
N
35
N
35
N
30
N
30
NNW
30
NNW
30
NNW
30
NNW
25
N
25
NNW
25
N
15
NW
15
NW
15
NW
15
NW
10
WNW
10
W
10
W
15
WSW
15
WSW
10
W
5
WNW
5
SE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
on
glassy
glassy
High Tide
11:57AM1.83m
00:40AM1.69m
2:08PM1.77m
2:59AM1.71m
3:49PM1.91m
Low Tide
6:44PM1.13m
7:25AM1.12m
8:40PM1.15m
9:09AM1.04m
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:47
8:45
8:43
 mm
Temp °C
13
13
13
13
13
13
13
13
13
13
13
14
15
15
14
13
13
14
14
14
14
14
14
Feels °C
7
6
6
7
7
7
7
7
7
7
8
11
12
12
12
11
12
13
11
12
13
14
13
  • 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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