Llangrannog surfForecast / Wales – Mid / UK

information circle48hr Weather and Surf, issued 12 pm Thursday 21 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
12.5° C
(Which is 1.2°C warmer than normal for this time of year)

How big are the waves at Llangrannog today?

The current surf forecast for Llangrannog at 5PM is: 0.9m 8s primary swell from a West-southwest direction and 0.1m 15s secondary swell from a West direction (forecast issued at 12:00pm May 21). The wind direction is predicted to be cross-offshore.

Time (BST) & DateWave HeightWave Period
Morning (21 May)3.5ft (1.1m)7s
Afternoon (21 May)3ft (0.9m)8s
Evening (21 May)2.5ft (0.8m)9s

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 Fri morning, min 13°C on Fri night). Wind will be generally light.

Thu
21
Friday
22
Saturday
23
Sun
24
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
1
0
1
0
0
0
0
1
1
1
1
1
1
0
0
0
0
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)
1.1
SW
8
1
SW
8
0.9
WSW
8
0.8
WSW
8
0.7
WSW
9
0.7
WSW
9
0.8
WSW
10
0.9
SW
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
0.7
WSW
10
0.7
WSW
10
0.6
WSW
10
0.5
WSW
10
0.5
WSW
10
0.5
WSW
9
0.4
WSW
9
0.5
WSW
9
0.4
WSW
9
0.4
WSW
9
Wave Graph
Metric surfscale
Energy kJ
125
116
106
84
70
76
105
139
200
183
133
180
138
118
90
88
77
55
54
50
34
48
32
31
Wind (km/h)
25
SSW
20
SW
15
SSW
10
S
20
SSE
25
SSE
20
SSE
20
S
20
S
20
SSW
15
SSW
10
S
10
SSW
10
S
10
SSW
0
S
5
WSW
10
WNW
10
WNW
5
NNW
5
SSE
0
SW
0
SE
5
ESE
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
cross-on
on
glassy
glassy
glassy
glassy
glassy
High Tide
12:00PM3.54m
00:23AM3.80m
12:58PM3.19m
1:24AM3.53m
2:06PM2.92m
2:35AM3.32m
Low Tide
7:08PM0.87m
7:56AM0.64m
8:09PM1.04m
9:02AM0.78m
9:15PM1.15m
part cloud
cloud
part cloud
part cloud
part cloud
clear
cloud
cloud
part cloud
clear
cloud
cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:15
5:13
5:13
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:14
9:15
9:16
9:17
Temp °C
15
16
17
17
15
15
14
14
16
18
18
17
15
14
14
13
15
17
17
15
15
14
14
14
11
13
14
16
11
10
10
11
13
16
16
17
14
12
13
13
15
16
16
15
15
14
14
13
Swell 1
Height (m)
Direction
Period (s)
0.1
W
15
0.8
WSW
8
0.7
WSW
9
0.7
WSW
9
0.8
WSW
10
0.9
SW
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
0.7
WSW
10
0.7
WSW
10
0.6
WSW
10
0.5
WSW
10
0.5
WSW
10
0.5
WSW
9
0.4
WSW
9
0.5
WSW
9
0.4
WSW
9
0.4
WSW
9
Energy kJ
4
84
70
76
105
139
200
183
133
180
138
118
90
88
77
55
54
50
34
48
32
31
Swell 2
Height (m)
Direction
Period (s)
0.1
W
15
0.1
W
15
0.1
W
15
0.2
W
3
0.1
W
14
0.1
W
15
0.1
W
15
Energy kJ
4
4
4
1
4
4
4
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1.1
SW
8
1
SW
8
0.9
WSW
8
0.5
S
3
0.4
SSE
3
0.3
S
2
0.2
SSW
3
0.4
SW
3
0.4
SW
3
Energy kJ
125
116
106
4
3
1
1
3
3
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
113
62
64
0
57
0
62
25
62
62
0
0
0
0
0
0
57
57
57
57
55
55
55
55
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
3
3
3
3
2
3
3
3
3
3
3
3
3
2
2
2
2
2
1
2
2
1
2
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
7
7
7
6
6
7
8
6
7
8
8
7
7
6
6
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

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