Porth Dinllaen surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 12 am Tuesday 05 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
11.2° C
(Which is 1.3°C warmer than normal for this time of year)

Time (BST) & DateWave HeightWave Period
Morning (05 May)--
Afternoon (05 May)1.5ft (0.4m)3s
Evening (05 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

Mostly dry. Very mild (max 12°C on Thu afternoon, min 8°C on Tue night). Wind will be generally light.

Tuesday
5
Wednesday
6
Thursday
7
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
10 AM
1 PM
4 PM
7 PM
10 PM
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>
Wave
Height (m)
Direction
Period (s)
0.3
N
4
0.4
NW
2
0.4
NNW
3
0.4
NNW
3
0.3
NNW
4
0.3
NNW
5
0.1
NW
5
0.2
NNW
5
0.2
NNW
4
0.1
NW
4
0.4
SE
3
0.4
SSE
3
0.3
S
3
0.1
W
8
0.1
W
8
0.1
W
8
Wave Graph
Metric surfscale
Energy kJ
2
0
0
0
2
4
4
4
0
1
0
0
1
0
0
0
0
0
0
0
0
1
1
1
Wind (km/h)
15
NNE
15
NNE
15
NNE
15
NNW
20
NNW
25
NNW
20
N
15
N
15
NE
10
NNE
5
SE
10
S
15
S
10
SSW
5
S
10
SSE
20
SSE
20
SSE
20
SSE
20
SSE
15
SSE
15
SSW
10
SSW
10
SSE
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
glassy
cross-off
cross-off
cross-off
glassy
off
off
off
off
cross-off
off
cross-off
cross-off
cross-off
High Tide
11:04PM3.52m
11:25AM3.27m
11:38PM3.37m
11:59AM3.06m
00:15AM3.19m
12:37PM2.83m
Low Tide
6:06AM0.61m
6:17PM0.84m
6:45AM0.78m
6:55PM1.00m
7:29AM0.96m
7:39PM1.15m
clear
clear
part cloud
cloud
part cloud
part cloud
clear
clear
clear
cloud
part cloud
part cloud
part cloud
clear
clear
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:35
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:52
8:52
8:54
Temp °C
10
10
10
11
11
10
10
9
8
8
8
9
10
11
11
10
10
9
9
10
10
12
12
12
6
6
6
7
6
4
5
5
4
5
6
6
6
8
9
6
6
4
4
5
6
8
9
9
Swell 1
Height (m)
Direction
Period (s)
0.2
NNW
3
0.3
NNW
5
0.3
NNW
5
0.2
NNW
5
0.2
NNW
4
0.1
NW
4
0.1
W
8
0.1
W
8
0.1
W
8
Energy kJ
1
5
5
2
2
1
1
1
1
Swell 2
Height (m)
Direction
Period (s)
0.1
NW
5
Energy kJ
1
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
0.3
N
4
0.4
NW
2
0.4
NNW
3
0.4
NNW
3
0.3
NNW
4
0.4
SE
3
0.4
SSE
3
0.3
S
3
0.3
S
3
0.2
SSW
3
0.2
SSW
3
Energy kJ
2
2
4
4
4
2
3
2
1
1
1
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
2
2
2
Distance (km)
287
323
411
313
321
375
299
287
285
285
285
299
285
285
285
298
306
309
308
321
282
282
282
282
Best forecast wave conditions in Lleyn Peninsula
Rating
(10 max)
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
1
1
2
3
3
2
1
3
2
2
2
2
2
1
1
2
1
2
2
2
3
2
Header Global
Rating
(10 max)
4
5
5
5
5
5
5
5
5
6
8
9
6
5
8
8
5
5
6
5
5
5
7
6
  • 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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