Porth Dinllaen surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 11 pm Tuesday 17 Feb 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
7.7° 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 6AM is: 0.2m 11s primary swell from a West-southwest direction and 0.2m 10s secondary swell from a West-southwest direction (forecast issued at 11:00pm February 17). An open ocean swell of 1.4m 5s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (GMT) & DateWave HeightWave Period
Morning (18 Feb)3ft (0.9m)6s
Afternoon (18 Feb)2.5ft (0.7m)9s
Evening (18 Feb)2ft (0.6m)10s

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

Updates in  hr  min  s Forecast update imminent
Wednesday
18
Thursday
19
Friday
20
9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM
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
Wave Height (m) & direction (?)
0.5
SW
0.4
SW
0.4
SW
0.2
WSW
0.9
SSW
0.9
SW
0.7
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.7
SW
0.8
WSW
0.9
WSW
0.8
WSW
0.7
SW
0.5
SW
1.2
WSW
1.3
WSW
2.1
SW
2.3
SW
1.9
SW
2.1
SW
3
SW
Period(s) (?)88711669101012121414141312105568878
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3223141164617473791081081972362902151374478903396004344471019
Wind
(km/h)
35
ESE
40
ESE
45
SE
50
SE
55
SE
50
SE
45
SE
40
ESE
30
E
15
NE
20
NNE
15
NNE
20
N
20
NNW
20
WNW
30
WNW
30
W
25
WSW
35
SSW
50
SW
35
SW
40
SW
50
SW
50
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffoffoffcross-
off
cross-
off
crosscrosscross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
crosscross-
off
crosscrosscross-
off
crosscross
High Tide
/ height (m)
8:51PM
3.46
9:04AM
3.94
9:23PM
3.60
9:37AM
4.08
9:56PM
3.69
10:11AM
4.12
Low Tide
/ height (m)
3:42AM
0.19
4:09PM
-0.03
4:16AM
0.12
4:45PM
-0.08
4:52AM
0.13
5:20PM
-0.02
Wednesday
18
Thursday
19
Friday
20
Sunrise----7:30-------7:28-------7:26---
Sunset------5:34-------5:36-------5:37-
cloud
cloud
cloud
cloud
light rain
cloud
cloud
cloud
light rain
light rain
light rain
cloud
cloud
part cloud
cloud
clear
part cloud
cloud
cloud
light rain
cloud
cloud
cloud
cloud
Rain (mm)
----1---152--------2----
Temp. °C4444445543333558779910101010
Feels °C (?)-5-7-7-8-8-8-6-5-4-2-2-2-2-1-10-111-132-10
  • 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

Latest Updates

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