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Surf Forecasts:

Porth Ceriad surf break

Porth Ceriad surfForecast / Wales – Lleyn / UK

information circle12 Day Weather and Surf, issued 5 pm Thursday 20 Nov 2025 GMT
Forecast update in hr  min  s Forecast update imminent
Porth Ceriad surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Ceriad sea temperature is
12.3° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Porth Ceriad this week:

The most powerful waves expected at Porth Ceriad in the next 12 days are 4.0m 9s and forecast to arrive on Sunday (Nov 23) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 8s period and expected on Monday (Nov 24) at 12PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 3PM (Sun 23rd Nov)13ft (4.0m) 9s

Table - best surf conditions forecast for Porth Ceriad over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 18mm), heaviest on Fri night. Very mild (max 12°C on Sat night, min 6°C on Thu afternoon). Winds increasing (calm on Fri morning, strong winds from the SSW by Fri night).

Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Sun night. Very mild (max 10°C on Sun afternoon, min 8°C on Sun night). Winds decreasing (near gales from the W on Sun night, light winds from the NW by Wed morning).

Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
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
See all maps
Wave Height (m) & direction (?)
0.1
W
0.1
W
0.1
W
0.1
W
1.7
SW
1.2
SW
0.8
SW
1.7
SW
3
WSW
4
WSW
2.5
W
0.8
WSW
0.4
SW
0.2
WSW
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.4
WSW
1.1
WSW
Period(s) (?)131215156776897998111112111135
Wave
Graph
(?)Metric surfscale
Energy kJ (?)33441781315519593926597049620633332356
Wind
(km/h)
30
N
20
NNE
5
E
25
SW
45
SSW
25
NW
20
WSW
45
SSW
45
W
55
WSW
45
NW
50
N
50
NNW
35
N
30
N
35
N
20
N
10
NW
25
WSW
40
SW
20
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffglasscross-
on		cross-
on		cross-
off		crossoncrosscrosscross-
off		offoffoffoffoffoffcross-
off		cross-
on		cross-
on		cross
High Tide
/ height (m)
8:10PM
4.02
8:26AM
4.12
8:43PM
3.97
8:59AM
4.10
9:17PM
3.87
9:32AM
4.03
9:51PM
3.73
10:08AM
3.91
10:27PM
3.56
10:47AM
3.77
11:07PM
3.37
11:30AM
3.62
11:55PM
3.19
Low Tide
/ height (m)
3:03AM
0.67
3:25PM
0.61
3:35AM
0.74
4:01PM
0.68
4:10AM
0.84
4:40PM
0.80
4:47AM
0.97
5:23PM
0.95
5:28AM
1.11
6:11PM
1.10
6:13AM
1.25
7:03PM
1.20
7:06AM
1.37
Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Sunrise--7:50--7:52--7:52--7:54--7:56--7:58--8:00
Sunset4:16--4:15--4:15--4:14--4:13--4:12--4:10--
rain showers
clear
part cloud
cloud
mod rain
clear
part cloud
rain showers
clear
part cloud
mod rain
clear
light rain
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
rain showers
Rain (mm)
1---9--8--8-2------44
Temp. °C77781110101291091010109999101212
Feels °C (?)-1-1415452-2-2-20-121135369
  • 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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Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

Feel that? If you are in the northern hemisphere, you will have had that first bite of winter. The lick of a frost, the chill of a cold offshore breeze and the sound of winter swells pounding the shores. If you are near the mountains, your favourite jackets, gloves, and footwear might get dusted off and prepped for battle. And in that beautiful Venn diagram, you will find PrimaLoft. They have spent over 40 years developing innovative insulations that have powered your warmest winter gear. In t

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View detailed surf forecast for Porth Ceriad at:
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Information about the Porth Ceriad Surf forecast

The above surf forecast table for Porth Ceriad provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Porth Ceriad can be found by selecting the local surf guide option on the grey menu. Our Porth Ceriad 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 Ceriad) 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 Ceriad 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.

Porth Ceriad is 29 km (18 miles) from Porthmadog. If you plan a holiday in Lleyn Peninsula, look for hotels and other accommodation in Porthmadog. Porthmadog has rooms for a wide range of budgets as well as car hire and transport links.

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