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Surf Forecasts:

Porth Dinllaen surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 11 am Wednesday 18 Mar 2026 GMT
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
8.6° C
 (Which is slightly warmer than usual)

How big are the waves at Porth Dinllaen today?

The current surf forecast for Porth Dinllaen at 6PM is: 0.5m 7s primary swell from a Southwest direction and 0.2m 15s secondary swell from a West-southwest direction (forecast issued at 11:00am March 18). The wind direction is predicted to be cross-shore.

Time (GMT) & DateWave HeightWave Period
Morning (18 Mar)2.5ft (0.8m)8s
Afternoon (18 Mar)1ft (0.3m)16s
Evening (18 Mar)0.5ft (0.2m)15s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
Saturday
21
9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 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
See all maps
Wave Height (m) & direction (?)
0.8
SW
0.3
WSW
0.3
WSW
0.5
SW
0.2
WSW
0.4
SW
0.4
SW
0.3
SW
0.3
SW
0.3
SW
0.2
WSW
0.2
WSW
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
SW
0.1
SW
0.1
SW
0.1
SW
0.1
W
Period(s) (?)8171671577777771313161568158881014
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7154502521201288855435411433244
Wind
(km/h)
10
E
10
NNE
5
N
15
NNE
10
NE
5
SE
5
NNW
5
ENE
5
S
5
WSW
5
W
5
N
5
ESE
5
SE
5
SE
10
SE
5
SSE
5
SSW
5
W
5
NNW
5
NNE
5
NNE
5
ENE
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		crossglasscrosscross-
off		glassglassglasscross-
off		crosscross-
on		glassglassoffoffoffoffglassglasscross-
on		crossglassglasscross-
on
High Tide
/ height (m)
8:02AM
3.82
8:23PM
3.61
8:35AM
4.06
8:56PM
3.80
9:10AM
4.20
9:31PM
3.92
Low Tide
/ height (m)
3:04PM
-0.01
3:14AM
0.12
3:40PM
-0.16
3:50AM
0.01
4:16PM
-0.18
4:28AM
0.00
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunrise6:26-------6:24-------6:22-------
Sunset---6:25-------6:28-------6:30----
cloud
clear
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
clear
part cloud
Rain (mm)
------------------------
Temp. °C10121515161513131212131313121111101111111111109
Feels °C (?)8101412141412121010111111108879989986
  • 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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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Porth Dinllaen surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Porth Dinllaen at:
surf-forecast.com

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