Porth Dinllaen surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 6 am Thursday 23 Apr 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
10.6° 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 12PM is: 0.1m 11s primary swell from a Southwest direction and 0.2m 4s secondary swell from a South-southeast direction (forecast issued at 06:00am April 23). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (BST) & DateWave HeightWave Period
Morning (23 Apr)0.5ft (0.1m)12s
Afternoon (23 Apr)1.5ft (0.4m)11s
Evening (23 Apr)1.5ft (0.5m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 16°C on Thu afternoon, min 10°C on Thu morning). Wind will be generally light.

Thursday
23
Friday
24
Saturday
25
Sun
26
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
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.2
SSE
4
0.3
ESE
4
0.1
SW
11
0.1
SW
10
0.4
SW
11
0.5
SW
10
0.6
SW
10
0.5
SW
10
0.5
SW
10
0.6
SW
10
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
10
0.6
SW
10
0.6
WSW
10
0.6
WSW
10
0.5
SW
10
0.5
SW
10
0.5
SW
10
Wave Graph
Metric surfscale
Energy kJ
1
0
5
4
29
50
60
46
46
84
104
97
96
94
94
94
90
87
87
72
69
48
47
45
Wind (km/h)
15
E
15
E
15
E
10
SE
5
ENE
10
E
15
ESE
10
ESE
10
E
10
SE
5
ESE
5
SW
5
NNW
5
NNE
10
E
10
ESE
5
ESE
5
ESE
5
SSE
5
W
5
WNW
5
NNW
5
ENE
5
E
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
glassy
cross-on
cross-on
cross-off
cross-off
cross-off
off
glassy
cross-on
glassy
glassy
glassy
glassy
High Tide
1:50PM2.95m
2:17AM3.13m
3:13PM2.66m
3:45AM2.98m
4:57PM2.61m
Low Tide
8:43AM0.66m
9:09PM1.06m
9:59AM0.81m
10:25PM1.17m
11:20AM0.80m
11:45PM1.12m
part cloud
cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:01
5:58
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:30
8:31
8:34
8:36
Temp °C
9
10
10
13
16
16
15
13
12
12
13
14
15
15
14
14
13
12
12
13
13
13
13
13
4
5
6
10
14
13
12
10
9
9
10
11
12
12
11
11
10
9
10
10
11
11
11
12
Swell 1
Height (m)
Direction
Period (s)
0.2
SSE
4
0.2
SSE
4
0.2
SSE
4
0.4
SW
11
0.5
SW
10
0.6
SW
10
0.5
SW
10
0.5
SW
10
0.6
SW
10
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
11
0.6
SW
10
0.6
SW
10
0.6
WSW
10
0.6
WSW
10
0.5
SW
10
0.5
SW
10
0.5
SW
10
Energy kJ
1
2
1
29
50
60
46
46
84
104
97
96
94
94
94
90
87
87
72
69
48
47
45
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
11
0.1
SW
10
Energy kJ
5
4
Swell 3
Height (m)
Direction
Period (s)
0.1
S
6
0.1
S
6
0.1
W
14
Energy kJ
1
1
4
Wind waves
Height (m)
Direction
Period (s)
0.3
ESE
4
0.4
SE
4
0.4
ESE
3
0.2
ESE
3
0.2
ESE
3
0.3
ESE
3
0.3
ESE
3
Energy kJ
2
3
5
1
1
1
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
377
377
379
499
14
14
28
31
31
14
13
28
13
13
13
13
13
14
13
13
13
13
13
13
Best forecast wave conditions in Lleyn Peninsula
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
1
1
1
1
2
1
1
2
2
2
2
2
2
2
2
2
2
1
2
1
Header Global
Rating
(10 max)
6
6
5
5
5
5
5
5
5
5
6
5
5
5
4
5
5
4
4
5
4
4
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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