Llangrannog surfForecast / Wales – Mid / UK

information circle48hr Weather and Surf, issued 6 am Sunday 17 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
12.1° C
(Which is 1.0°C warmer than normal for this time of year)

How big are the waves at Llangrannog today?

The current surf forecast for Llangrannog at 2PM is: 0.9m 5s primary swell from a West-southwest direction and 0.1m 12s secondary swell from a West direction (forecast issued at 06:00am May 17). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (17 May)3.5ft (1.0m)4s
Afternoon (17 May)3ft (0.9m)5s
Evening (17 May)3.5ft (1.0m)6s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 15mm), heaviest on Mon night. Very mild (max 14°C on Tue morning, min 9°C on Sun night). Winds increasing (light winds from the WSW on Sun night, strong winds from the WSW by Tue afternoon).

Sunday
17
Monday
18
Tuesday
19
Wed
20
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
0
0
0
0
0
0
0
0
0
0
0
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
W
4
1
W
4
0.9
W
5
0.7
WSW
5
1.1
WSW
5
1.2
WSW
5
1
WSW
6
0.9
WSW
6
0.9
WSW
6
0.8
WSW
6
0.7
WSW
6
0.6
WSW
6
0.4
WSW
6
0.4
WSW
6
0.5
SW
6
0.5
SW
6
0.5
SW
6
0.9
SSW
7
0.9
SW
7
1.4
SW
5
1.7
WSW
6
1.8
WSW
7
1.5
WSW
8
1.6
SW
8
Wave Graph
Metric surfscale
Energy kJ
40
40
34
29
50
75
69
64
70
56
35
32
16
16
19
15
17
68
79
80
202
307
240
283
Wind (km/h)
20
W
20
W
25
W
25
WSW
30
WSW
20
SW
20
WSW
15
SW
10
WSW
5
WSW
10
WSW
10
WSW
5
SW
15
S
25
SSE
30
SSE
35
SSE
20
S
25
SW
35
WSW
40
WSW
35
SW
35
SSW
35
SW
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross-off
off
off
off
cross-off
cross-off
cross
cross
cross
cross-off
cross
High Tide
8:47AM4.35m
9:09PM4.36m
9:33AM4.33m
9:54PM4.37m
10:20AM4.16m
10:40PM4.27m
Low Tide
3:42PM0.23m
4:07AM0.17m
4:29PM0.33m
4:59AM0.20m
5:19PM0.48m
cloud
cloud
rain showers
part cloud
light rain
light rain
rain showers
light rain
light rain
clear
cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
light rain
cloud
rain showers
part cloud
clear
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:18
5:18
5:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:07
9:08
9:10
9:12
1
1
2
1
1
1
1
4
1
1
1
Temp °C
9
9
10
11
10
10
9
9
9
9
10
11
12
12
10
11
11
12
13
14
13
13
12
13
4
4
4
5
3
5
5
5
6
7
7
8
10
8
5
5
4
8
8
8
5
6
6
7
Swell 1
Height (m)
Direction
Period (s)
0.1
W
13
0.1
W
13
0.1
W
14
0.4
NNW
4
0.2
NNW
4
0.1
W
12
0.1
W
11
0.1
W
11
0.9
WSW
6
0.8
WSW
6
0.7
WSW
6
0.6
WSW
6
0.4
WSW
6
0.4
WSW
6
0.5
SW
6
0.5
SW
6
0.5
SW
6
0.4
SW
7
0.1
W
17
0.2
W
16
Energy kJ
3
3
4
8
2
3
3
2
70
56
35
32
16
16
19
15
17
12
6
20
Swell 2
Height (m)
Direction
Period (s)
0.1
W
12
0.1
W
12
0.1
W
15
0.1
W
11
0.1
W
11
0.2
NNW
3
0.1
W
10
Energy kJ
3
3
4
2
2
1
2
Swell 3
Height (m)
Direction
Period (s)
0.1
W
8
0.1
W
10
0.1
W
10
0.1
W
10
Energy kJ
1
2
2
2
Wind waves
Height (m)
Direction
Period (s)
1
W
4
1
W
4
0.9
W
5
0.7
WSW
5
1.1
WSW
5
1.2
WSW
5
1
WSW
6
0.9
WSW
6
0.3
SSE
2
0.6
SSE
3
1
SSE
4
0.9
SSW
7
0.9
SW
7
1.4
SW
5
1.7
WSW
6
1.8
WSW
7
1.5
WSW
8
1.6
SW
8
Energy kJ
40
40
34
29
50
75
69
64
1
8
27
68
79
80
202
307
240
283
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
1
2
2
1
2
1
1
2
1
1
1
2
1
1
Distance (km)
222
73
345
345
348
348
245
349
74
57
57
184
184
131
345
367
362
382
395
399
390
349
349
356
Best forecast wave conditions in Mid Wales
Rating
(10 max)
Best forecast wave conditions in United Kingdom
Rating
(10 max)
3
3
3
4
4
4
4
4
3
3
3
3
2
2
2
2
2
2
2
1
2
2
2
Header Global
Rating
(10 max)
4
5
4
4
8
6
4
4
5
7
4
4
5
4
5
5
4
4
4
4
5
5
5
4
  • 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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