Porth Dinllaen Surf Break

Porth Dinllaen Surf Forecast and Surf Report

Lat Long: 52.94° N 4.56° W

Issued: 12 pm 28 Jun 2026 (local time)

Forecast update in  hr  min

Today's Porth Dinllaen sea temperature is
17.2° C

3.3°C warmer than normal for this time of year

Porth Dinllaen surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Porth Dinllaen surf forecast from 28 Jun 2026:

  • Most powerful swell: Thursday 2 Jul, 4AM (local time) - 6ft (1.9m), 6s period, SW swell with 275 kJ wave energy.

Best Forecast Surf Conditions for Porth Dinllaen this week:

The most powerful waves expected at Porth Dinllaen in the next 16 days are 1.9m 6s and forecast to arrive on Thursday (Jul 02) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Thursday (Jul 02) at 1AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Thu 2nd Jul)6ft (1.9m) 6s

Table - best surf conditions forecast for Porth Dinllaen over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 16°C on Tue afternoon, min 13°C on Sun night). Winds decreasing (strong winds from the SW on Sun afternoon, calm by Tue night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Very mild (max 16°C on Wed night, min 12°C on Thu night). Winds decreasing (strong winds from the SW on Wed night, light winds from the SSW by Fri morning).

Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
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 Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
7
1.4
SW
5
1.3
SW
6
0.8
SW
7
0.6
SW
7
0.7
SW
5
0.1
SW
13
0.1
SW
12
0.8
SW
6
0.6
SW
6
0.5
SW
6
1.4
SW
5
1.2
SW
6
0.7
SW
7
0.4
SW
6
0.4
WSW
6
0.4
WSW
4
0.6
SW
4
0.7
WSW
6
0.7
SW
4
1
WSW
5
Wave Graph
Metric surfscale
Energy kJ
118
0
132
55
36
23
7
6
36
21
18
0
116
47
15
12
5
11
30
14
46
Wind (km/h)
25
WSW
40
SW
15
WSW
15
SW
20
S
15
S
25
S
20
SSW
5
SW
10
NNW
10
W
35
SSW
40
NW
20
NNW
20
NW
10
SSW
25
SSW
35
SW
20
WNW
5
WNW
5
WSW
Wind State
cross
cross-off
cross-on
cross
cross-off
cross-off
cross-off
cross-off
glassy
on
cross-on
cross-off
on
on
on
cross-off
cross-off
cross
cross-on
on
cross-on
High Tide
8:43PM3.29m
9:04AM3.17m
9:22PM3.41m
9:42AM3.22m
9:58PM3.49m
10:17AM3.22m
10:34PM3.55m
10:51AM3.20m
11:08PM3.57m
11:25AM3.15m
11:42PM3.55m
12:00PM3.09m
00:18AM3.51m
Low Tide
3:25PM0.82m
3:50AM0.70m
4:02PM0.73m
4:28AM0.59m
4:38PM0.65m
5:05AM0.52m
5:13PM0.60m
5:42AM0.48m
5:48PM0.58m
6:19AM0.48m
6:24PM0.61m
6:57AM0.51m
7:00PM0.68m
clear
clear
clear
cloud
part cloud
cloud
part cloud
clear
part cloud
part cloud
clear
light rain
clear
part cloud
clear
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:54
4:56
4:56
4:56
4:58
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:46
9:46
9:46
9:45
9:45
9:45
9:45
 mm
2
Temp °C
14
15
15
14
15
15
15
16
16
14
15
16
14
16
16
12
15
16
15
17
17
Feels °C
9
7
11
11
12
13
11
13
15
13
12
10
7
12
13
11
10
11
13
16
16
Swell 1
Height (m)
Direction
Period (s)
0.1
SW
15
1.3
SW
6
0.2
WNW
4
0.2
WNW
4
0.1
SW
13
0.1
SW
13
0.1
SW
12
0.8
SW
6
0.6
SW
6
0.4
NW
4
1.2
SW
6
0.7
SW
7
0.4
SW
6
0.2
NNW
4
0.1
SW
5
0.1
W
11
0.6
SW
6
0.1
W
10
Energy kJ
8
132
1
1
7
7
6
36
21
4
116
47
15
2
1
2
25
2
Swell 2
Height (m)
Direction
Period (s)
0.2
WSW
14
0.1
SW
13
0.1
SW
13
0.1
SW
13
0.1
SW
13
0.2
WSW
12
0.2
WSW
11
0.1
SW
10
0.1
W
11
0.1
W
11
Energy kJ
19
7
7
7
7
15
12
4
2
2
Swell 3
Height (m)
Direction
Period (s)
0.2
WSW
13
0.1
W
13
0.1
W
13
0.2
WSW
12
0.1
W
10
Energy kJ
17
3
3
15
2
Wind waves
Height (m)
Direction
Period (s)
1.1
SW
7
1.4
SW
5
0.8
SW
7
0.6
SW
7
0.7
SW
5
1
SSW
5
1.1
SW
6
0.6
WNW
4
0.5
SW
6
1.4
SW
5
0.9
NW
5
0.7
NW
5
0.5
NW
4
0.4
WSW
6
0.4
WSW
4
0.6
SW
4
0.7
WSW
6
0.7
SW
4
1
WSW
5
Energy kJ
118
107
55
36
23
46
86
12
18
102
37
28
9
12
5
11
30
14
46
Nearest Offshore or Glassy
Rating
(10 max)
1
3
1
2
2
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
510
465
13
142
268
148
282
98
13
13
285
268
510
142
141
154
307
415
277
523
142
Best forecast wave conditions in Lleyn Peninsula
Rating
(10 max)
1
2
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
2
4
4
3
2
3
2
2
2
2
1
2
2
4
1
1
1
Header Global
Rating
(10 max)
5
9
7
5
5
5
5
5
5
5
4
8
5
5
4
7
4
4
5
9
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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Information about the Porth Dinllaen Surf forecast

The above surf forecast table for Porth Dinllaen provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porth Dinllaen can be found by selecting the local surf guide option on the grey menu. Our Porth Dinllaen surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Porth Dinllaen) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Porth Dinllaen may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Lleyn Peninsula? If you are looking for accommodation near Porth Dinllaen, camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 29 km (18 miles) away. Other places in and around Lleyn Peninsula where you can find information about places to rent, and car hire include Anglesey which is 35 km (22 miles) away, Holyhead, Bangor and Llandudno.

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