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Surf Forecasts:

Porth Ceriad surf break

Porth Ceriad surfForecast / Wales – Lleyn / UK

information circle12 Day Weather and Surf, issued 5 am Tuesday 13 Jan 2026 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
8.3° C
 (Which is slightly cooler than normal)

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 Tuesday (Jan 13) at 12PM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.8m and 5s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Porth Ceriad in the next 12 days are 2.0m 8s and forecast to arrive on Thursday (Jan 15) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Jan 13) at 12PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)12PM (Tue 13th Jan)3ft (0.9m) 11s
Best Surf12PM (Tue 13th Jan)3ft (0.9m) 11s
Most Powerful12AM (Thu 15th Jan)6.5ft (2.0m) 8s

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 11mm), heaviest on Wed night. Mild temperatures (max 8°C on Tue morning, min 6°C on Tue morning). Winds decreasing (strong winds from the S on Wed night, calm by Thu night).

Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Sat night. Mild temperatures (max 8°C on Fri morning, min 6°C on Sat morning). Winds decreasing (fresh winds from the SSE on Fri afternoon, light winds from the NE by Sat night).

Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
1
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.6
SW
1
SW
0.6
SW
0.6
SW
1.3
SSW
2
SSW
1.2
SW
0.4
WSW
0.3
WSW
0.8
SW
0.4
WSW
1.1
SW
0.9
SW
0.7
SW
0.5
SW
0.4
SW
0.3
SW
0.5
SW
0.9
SSW
0.6
SSW
0.1
W
Period(s) (?)11111010488181751889988755415
Wave
Graph
(?)Metric surfscale
Energy kJ (?)582224808062452196133573512017711275321481343164
Wind
(km/h)
35
W
20
NNW
15
WNW
25
SSW
35
S
35
SSW
15
WSW
5
SE
10
WSW
30
S
35
SSE
30
SE
25
E
15
ENE
15
NNE
10
ESE
15
S
10
SE
20
ESE
20
NE
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		onononcross-
on		cross-
on		crossononcross-
on		crosscross-
off		offcrossoncross-
on		crosscross-
off		cross-
off
High Tide
/ height (m)
4:23PM
2.98
5:00AM
3.02
5:26PM
3.06
5:54AM
3.20
6:16PM
3.22
6:38AM
3.43
6:58PM
3.41
7:18AM
3.68
7:36PM
3.60
7:54AM
3.93
8:11PM
3.77
8:28AM
4.15
8:45PM
3.90
Low Tide
/ height (m)
10:32AM
1.56
11:19PM
1.47
12:03PM
1.46
12:31AM
1.35
1:04PM
1.25
1:23AM
1.16
1:50PM
1.02
2:04AM
0.95
2:30PM
0.79
2:41AM
0.75
3:08PM
0.60
3:16AM
0.59
3:44PM
0.46
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Sunrise8:23--8:22--8:22--8:22--8:21--8:19--8:18--
Sunset-4:28--4:30--4:30--4:32--4:35--4:36--4:37-
rain showers
part cloud
clear
cloud
cloud
rain showers
cloud
cloud
rain showers
rain showers
light rain
part cloud
clear
part cloud
light rain
light rain
cloud
cloud
light rain
light rain
clear
Rain (mm)
3----7--112---31--11-
Temp. °C877768878887787677666
Feels °C (?)0110-3044400-1243334112
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Latest Updates

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Porth Ceriad 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 Ceriad at:
surf-forecast.com

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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