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Surf Forecasts:

Porth Ceriad surf break

Porth Ceriad surfForecast / Wales – Lleyn / UK

information circle12 Day Weather and Surf, issued 11 pm Tuesday 25 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
11.5° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Porth Ceriad this week:

The surf forecast for Porth Ceriad over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Nov 30) at 6AM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.6m and 4s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Porth Ceriad in the next 12 days are 3.5m 10s and forecast to arrive on Monday (Dec 01) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Saturday (Nov 29) at 3PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sun 30th Nov)2ft (0.6m) 10s
Best Surf 6AM (Sun 30th Nov)2ft (0.6m) 10s
Most Powerful 6PM (Mon 1st Dec)11ft (3.5m) 10s

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 Light rain (total 4mm), mostly falling on Wed afternoon. Very mild (max 13°C on Wed night, min 8°C on Tue night). Winds increasing (calm on Tue night, near gales from the WSW by Fri morning).

Days 3-6 Weather Summary Heavy rain (total 35mm), heaviest during Mon morning. Very mild (max 13°C on Mon afternoon, min 7°C on Fri night). Winds decreasing (gales from the SSW on Fri night, calm by Sun morning).

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
Tue
02
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
SW
1
SSW
1.7
SSW
1.1
SW
1.7
SW
2.3
SW
2.4
WSW
3
WSW
2.5
WSW
1.5
WSW
0.8
SW
0.6
SW
0.6
SW
0.5
SW
0.5
SW
1.7
SSW
3
SW
3
SW
2.1
SW
1.5
WSW
1.8
SW
Period(s) (?)10467677888889101068101096
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2730230972245856281021875285755561454417112051838799370202
Wind
(km/h)
10
SSE
35
S
50
S
30
SW
40
SSW
45
SW
50
SW
50
WSW
45
WSW
70
SSW
35
WNW
30
NW
15
NW
0
NW
25
SSW
55
SSW
60
S
55
SSW
45
SSW
40
SW
30
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononcross-
on		oncross-
on		cross-
on		cross-
on		crossoncross-
off		cross-
off		cross-
off		glasscross-
on		ononononcross-
on		cross-
on
High Tide
/ height (m)
11:07PM
3.37
11:30AM
3.62
11:55PM
3.19
12:20PM
3.48
12:53AM
3.05
1:22PM
3.39
2:05AM
3.01
2:34PM
3.42
3:22AM
3.15
3:46PM
3.58
4:29AM
3.44
4:49PM
3.85
5:24AM
3.79
5:44PM
4.14
Low Tide
/ height (m)
6:13AM
1.25
7:03PM
1.20
7:06AM
1.37
8:00PM
1.23
8:06AM
1.43
9:00PM
1.17
9:10AM
1.41
10:01PM
1.04
10:17AM
1.29
11:02PM
0.85
11:22AM
1.09
12:00AM
0.64
12:23PM
0.82
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
Tue
02
Sunrise-7:58--8:00--8:02--8:03--8:04--8:06--8:07-
Sunset--4:10--4:09--4:08--4:07--4:07--4:06--4:06
part cloud
cloud
light rain
light rain
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
light rain
rain showers
rain showers
part cloud
part cloud
mod rain
heavy rain
light rain
rain showers
thunderstorm
rain showers
Rain (mm)
--31-----6211--8161741
Temp. °C9911131313111010119999991213121010
Feels °C (?)50510642-20-311373-212113
  • 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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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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