Llangrannog surfForecast / Wales – Mid / UK

information circle48hr Weather and Surf, issued 6 am Wednesday 20 May 2026 BST
Forecast update in hr  min  s Forecast update imminent
Llangrannog surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llangrannog sea temperature is
12.4° C
(Which is 1.1°C warmer than normal for this time of year)

How big are the waves at Llangrannog today?

The current surf forecast for Llangrannog at 1PM is: 1.7m 13s primary swell from a West-southwest direction (forecast issued at 06:00am May 20). The wind direction is predicted to be cross-shore.

Time (BST) & DateWave HeightWave Period
Morning (20 May)6ft (1.8m)12s
Afternoon (20 May)5ft (1.5m)13s
Evening (20 May)4.5ft (1.3m)12s

Table - waves today at Llangrannog. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 18°C on Thu afternoon, min 12°C on Wed morning). Winds decreasing (fresh winds from the WSW on Wed morning, calm by Fri night).

Wednesday
20
Thursday
21
Friday
22
Sat
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
1 AM
Rating
(10 max)
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
1
1
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)
2.1
WSW
9
1.8
WSW
12
1.8
WSW
13
1.7
WSW
13
1.5
WSW
13
1.3
WSW
12
1.1
WSW
12
0.9
WSW
11
0.8
WSW
11
0.9
SW
7
0.8
SW
7
0.9
SW
8
0.9
SW
8
0.7
SW
8
0.7
WSW
9
0.7
WSW
10
0.8
WSW
10
0.8
WSW
10
0.9
WSW
11
0.9
WSW
11
0.8
WSW
11
0.9
WSW
11
0.8
WSW
10
0.8
WSW
10
Wave Graph
Metric surfscale
Energy kJ
721
876
1069
980
734
525
336
183
133
89
75
82
88
69
75
81
117
115
196
183
133
180
125
118
Wind (km/h)
30
WSW
30
WSW
30
SW
35
WSW
30
WSW
25
SW
15
S
20
S
25
S
25
SSW
20
S
25
SSW
20
SSW
15
S
20
SE
25
SSE
25
SSE
20
S
20
S
15
SSW
15
SW
5
SW
5
SSE
5
SE
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross
cross
glassy
off
High Tide
11:08AM3.88m
11:29PM4.07m
12:00PM3.54m
00:23AM3.80m
12:58PM3.19m
Low Tide
5:55AM0.31m
6:12PM0.68m
6:54AM0.47m
7:08PM0.87m
7:56AM0.64m
8:09PM1.04m
part cloud
part cloud
clear
clear
part cloud
clear
clear
cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:15
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:12
9:14
9:15
9:16
Temp °C
12
12
12
14
14
14
12
12
13
14
14
17
18
17
15
15
15
15
16
18
18
17
16
15
6
6
6
8
9
10
9
8
9
10
10
13
15
15
11
11
11
12
13
16
17
17
17
15
Swell 1
Height (m)
Direction
Period (s)
0.7
WSW
12
1.1
WSW
12
0.9
WSW
11
0.8
WSW
11
0.3
WSW
10
0.3
WSW
10
0.5
WSW
8
0.1
W
15
0.7
SW
8
0.7
WSW
9
0.7
WSW
10
0.8
WSW
10
0.8
WSW
10
0.9
WSW
11
0.9
WSW
11
0.8
WSW
11
0.9
WSW
11
0.8
WSW
10
0.8
WSW
10
Energy kJ
160
336
183
133
22
21
35
4
69
75
81
117
115
196
183
133
180
125
118
Swell 2
Height (m)
Direction
Period (s)
0.6
WSW
12
0.2
W
10
0.1
W
15
0.1
W
15
0.1
W
15
0.2
WSW
13
0.2
WSW
3
Energy kJ
111
8
4
4
4
16
1
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
2.1
WSW
9
1.8
WSW
12
1.8
WSW
13
1.7
WSW
13
1.5
WSW
13
1.3
WSW
12
0.5
S
3
0.5
S
3
0.9
SW
7
0.8
SW
7
0.9
SW
8
0.9
SW
8
0.3
SSE
2
0.5
S
3
0.4
SSE
3
0.4
S
3
0.3
SSW
3
0.4
SW
3
0.3
WSW
3
Energy kJ
721
876
1069
980
734
525
5
6
89
75
82
88
1
4
3
3
1
4
2
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
2
4
4
1
1
1
2
2
1
2
2
2
1
1
1
1
1
2
1
1
1
Distance (km)
362
364
202
373
184
184
25
25
25
89
89
62
64
63
57
0
62
25
62
0
68
53
0
0
Best forecast wave conditions in Mid Wales
Rating
(10 max)
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
1
3
2
4
4
3
3
4
3
2
3
3
3
3
2
3
3
3
3
3
3
3
3
Header Global
Rating
(10 max)
5
5
4
4
4
5
5
5
4
5
5
5
5
4
4
4
5
7
7
8
6
5
5
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

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 Llangrannog 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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest