Machir Bay (Islay) Surf Break

Lat Long: 55.78° N 6.46° W

Machir Bay (Islay) 48 hour detailed Surf Forecast

Issued: 6 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Machir Bay (Islay) sea temperature is
14.7° C
0.3° 

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 (18 Aug):

  • Afternoon surf: Afternoon surf (18 Aug, local time) - 5.5ft (1.7m), 8s period with W swell.
  • Evening surf: Evening surf (18 Aug, local time) - 7ft (2.1m), 10s period with W swell.

The current surf forecast for Machir Bay (Islay) at 9PM is: 2.1m 10s primary swell from a West direction and 1.9m 9s secondary swell from a West direction (forecast issued at 06:00pm August 18). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (18 Aug)--
Afternoon (18 Aug)5.5ft (1.7m)8s
Evening (18 Aug)7ft (2.1m)10s

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


Short Range Forecast

Moderate rain (total 19mm), heaviest on Wed afternoon. Very mild (max 14°C on Tue afternoon, min 12°C on Thu night). Winds increasing (light winds from the E on Wed afternoon, fresh winds from the N by Thu night).

Tue
18
Wednesday
19
Thursday
20
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
1
1
3
2
2
2
1
1
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
W
8
1.9
W
9
2.1
W
10
2.1
W
11
2
W
11
2
W
10
1.9
W
10
1.8
W
10
1.7
W
10
1.6
W
10
1.5
W
10
1.4
W
10
1.3
W
10
1.1
W
10
0.9
W
10
0.8
W
10
1.7
NNW
6
1.7
NNW
6
1.8
NNW
6
Wave Graph
Metric surfscale
Energy kJ
418
561
900
992
881
848
694
610
544
482
415
354
313
219
146
116
237
213
245
Wind (km/h)
30
WSW
30
WSW
25
WSW
25
WSW
25
SW
20
SW
25
S
20
S
15
SSE
10
E
15
NNE
15
NNE
20
NE
20
NNE
15
NNE
20
N
35
N
35
N
40
N
Wind State
on
on
on
cross-on
cross-on
cross-on
cross
cross
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
High Tide
9:55PM2.36m
10:08AM2.22m
10:30PM2.10m
10:51AM2.02m
Low Tide
3:45PM0.44m
4:08AM0.66m
4:26PM0.70m
4:49AM0.85m
5:19PM0.95m
cloud
light rain
cloud
rain showers
rain showers
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:55
8:52
8:51
 mm
1
1
1
2
2
2
5
3
1
1
Temp °C
14
14
14
14
13
13
13
13
13
13
13
14
13
13
13
14
13
13
13
Feels °C
8
9
10
10
8
9
9
9
11
12
11
11
10
9
10
10
5
6
5
  • 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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