Porth Dinllaen surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 12 pm Tuesday 26 May 2026 BST
Forecast update in hr  min  s Forecast update imminent
Porth Dinllaen surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Dinllaen sea temperature is
12.8° C
(Which is 1.5°C warmer than normal for this time of year)

How big are the waves at Porth Dinllaen today?

The current surf forecast for Porth Dinllaen at 8PM is: 0.4m 4s primary swell from a North-northwest direction and 0.1m 7s secondary swell from a Southwest direction, 0.1m 12s secondary swell from a West direction (forecast issued at 12:00pm May 26). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (26 May)0.5ft (0.1m)12s
Afternoon (26 May)0.5ft (0.1m)12s
Evening (26 May)1.5ft (0.4m)4s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 3mm), mostly falling on Wed night. Warm (max 24°C on Tue afternoon, min 12°C on Thu night). Wind will be generally light.

Tue
26
Wednesday
27
Thursday
28
Fri
29
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
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)
0.1
W
12
0.1
W
12
0.1
W
12
0.4
NNW
4
0.4
NNW
4
0.1
SW
7
0.1
W
13
0.1
SW
7
0.1
W
7
0.1
W
7
0.1
W
7
0.1
W
18
0.1
W
18
0.1
W
18
0.1
W
18
0.1
W
17
0.1
W
16
0.1
W
16
0.1
W
16
0.1
W
16
0.1
SW
16
0.1
W
16
0.1
W
16
0.1
SW
15
Wave Graph
Metric surfscale
Energy kJ
3
3
3
4
5
2
3
2
1
1
1
6
6
6
6
6
5
5
5
5
10
5
5
9
Wind (km/h)
10
NNW
15
NW
15
NNW
20
N
15
NNE
15
NNE
5
E
5
ESE
0
ESE
5
S
5
NE
10
E
20
ESE
15
ESE
15
ESE
15
SE
15
SSE
15
S
15
SSW
15
S
25
S
25
SSW
25
S
20
S
on
on
cross-on
cross-on
cross-on
cross
cross-off
glassy
glassy
glassy
glassy
cross-off
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
6:27PM2.90m
6:38AM3.18m
7:10PM3.07m
7:23AM3.24m
7:48PM3.23m
Low Tide
12:54PM0.66m
1:14AM0.91m
1:45PM0.63m
2:06AM0.79m
2:29PM0.61m
2:49AM0.69m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
thunderstorm
rain showers
rain showers
clear
clear
clear
cloud
clear
clear
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:03
5:03
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:24
9:25
9:28
9:29
1
1
1
Temp °C
22
22
24
22
21
20
20
18
18
19
20
23
21
19
17
16
16
19
19
18
15
12
12
12
23
23
24
21
20
19
20
19
19
20
21
23
20
17
15
14
14
17
17
16
12
8
8
8
Swell 1
Height (m)
Direction
Period (s)
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.4
NW
4
0.4
NW
5
0.3
NNW
5
0.2
NNW
5
0.1
NW
5
0.1
NW
4
0.1
W
18
0.1
W
16
0.1
W
16
0.1
W
16
0.1
W
16
0.1
SW
16
0.1
W
16
0.1
W
16
0.1
SW
15
Energy kJ
2
2
2
2
2
5
6
5
2
1
1
6
5
5
5
5
10
5
5
9
Swell 2
Height (m)
Direction
Period (s)
0.1
W
12
0.1
W
12
0.1
W
12
0.1
W
12
0.1
W
12
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
W
7
0.1
W
18
0.1
W
18
0.1
W
17
Energy kJ
3
3
3
3
3
2
2
2
1
6
6
6
Swell 3
Height (m)
Direction
Period (s)
0.1
W
13
0.1
W
7
0.1
W
7
0.1
W
18
0.1
W
6
0.1
W
6
Energy kJ
3
1
1
6
1
1
Wind waves
Height (m)
Direction
Period (s)
0.3
NNW
3
0.4
NNW
4
0.4
NNW
4
0.3
NE
2
0.4
ESE
3
0.3
ESE
3
0.1
NW
4
0.2
ESE
3
0.4
SE
3
0.4
SE
3
0.4
SE
3
0.4
SE
3
0.3
SSE
3
0.3
S
3
0.3
SSW
3
0.5
SSW
3
0.9
SSW
4
0.9
SSW
5
0.9
SSW
5
0.8
SW
5
Energy kJ
1
4
5
1
3
2
1
1
2
3
4
2
2
1
1
6
35
40
40
25
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
145
141
141
141
141
141
127
127
229
215
198
151
215
215
203
203
295
295
291
270
311
311
150
321
Best forecast wave conditions in Lleyn Peninsula
Rating
(10 max)
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
2
2
2
2
3
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
9
9
9
5
6
7
7
7
9
9
6
7
6
6
9
9
7
9
8
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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