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Surf Forecasts:

Porth Dinllaen surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 5 pm Sunday 18 Jan 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
8.1° C
 (Which is normal for this time of year)

How big are the waves at Porth Dinllaen today?

The current surf forecast for Porth Dinllaen at 9PM is: 0.4m 7s primary swell from a Southwest direction and 0.1m 9s secondary swell from a West direction (forecast issued at 05:00pm January 18). An open ocean swell of 0.6m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (18 Jan)--
Afternoon (18 Jan)1.5ft (0.5m)7s
Evening (18 Jan)1.5ft (0.4m)7s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 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
See all maps
Wave Height (m) & direction (?)
0.5
SW
0.3
SW
0.4
SW
0.1
W
0.1
W
0.5
SW
0.6
SW
0.1
W
1
SW
1.1
SW
0.2
WSW
0.2
WSW
0.7
SW
0.2
WSW
0.6
SW
0.1
SW
2.4
S
1
SW
1
SW
2
SSW
2.1
SSW
1.7
SW
1.4
SW
1.1
SW
Period(s) (?)777131345206717166166166810109999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2481743913875114282638272910435129184701629450314168
Wind
(km/h)
15
S
15
S
20
S
25
S
25
SSE
20
SE
20
SE
25
SSE
25
SSE
25
SE
35
S
25
SSW
30
SSE
40
SE
55
SE
60
SE
60
SE
55
SSE
40
SE
50
SSE
45
S
35
SSE
25
SE
30
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		offoffoffoffoffoffcross-
off		cross-
off		offoffoffoffoffoffoffoffcross-
off		cross-
off		offoff
High Tide
/ height (m)
8:39PM
3.25
8:55AM
3.62
9:11PM
3.33
9:27AM
3.75
9:44PM
3.38
10:00AM
3.84
Low Tide
/ height (m)
3:23PM
0.47
3:31AM
0.47
3:59PM
0.32
4:06AM
0.37
4:35PM
0.23
4:41AM
0.33
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Sunrise------8:19-------8:18-------8:17-
Sunset4:36-------4:37-------4:38-------
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
part cloud
light rain
rain showers
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
cloud
rain showers
rain showers
cloud
cloud
Rain (mm)
----------11---2122-11--
Temp. °C788876688876777899888777
Feels °C (?)3432111222-1-1-1-2-5-5-4-20-3-2-10-1
  • 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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