Porth Ceriad surf break

Porth Ceriad surfForecast / Wales – Lleyn / UK

information circle12 Day Weather and Surf, issued 6 am Tuesday 08 Jul 2025 BST
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
16.5° C
(Which is 1.9°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Porth Ceriad this week:

The most powerful waves expected at Porth Ceriad in the next 12 days are 1.2m 9s and forecast to arrive on Tuesday (Jul 15) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Tuesday (Jul 08) at 10AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1PM (Tue 15th Jul)4ft (1.2m) 9s

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

Updates in  hr  min  s Forecast update imminent
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SW
0.4
SW
0.2
WSW
0.2
WSW
0.2
WSW
0.1
SW
0.1
SW
0.1
W
0.1
W
0.1
W
0.1
W
0.6
SE
0.5
SSW
0.6
SSW
1.2
SW
1.1
SW
0.9
WSW
0.6
SW
0.5
SW
0.4
SW
0.5
SW
0.4
SW
0.3
SW
0.3
SW
0.2
WSW
0.1
SW
0.2
WSW
0.3
WSW
0.4
SW
Period(s) (?)5563654-------12141111344891088776665101099
Wave
Graph
(?)Metric surfscale
Energy (?)87423110000000373714171720422517557321922171095591720
Wind
(km/h)
15
NNW
10
WSW
10
SSW
5
SSW
5
SSW
5
S
5
S
5
SW
5
ESE
5
SSE
5
WNW
5
NNE
5
SE
10
NNW
15
E
10
ESE
10
WNW
15
ESE
15
ESE
5
WSW
15
SSW
20
SW
20
SW
5
WNW
5
SW
5
SSW
5
S
15
NNW
15
NW
10
NW
5
N
15
NW
10
N
5
NNW
15
NNW
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crossonglassglassononcross-
on
crossglassglassoffcross-
on
cross-
off
crosscross-
on
cross-
off
cross-
on
cross-
on
glasscross-
on
cross-
on
cross-
on
cross-
off
glassonglasscross-
off
cross-
off
cross-
off
glasscross-
off
offglasscross-
off
cross-
off
High Tide
/ height (m)
7:44PM
3.53
8:03AM
3.51
8:23PM
3.74
8:41AM
3.66
9:00PM
3.96
9:19AM
3.80
9:38PM
4.15
9:56AM
3.91
10:16PM
4.31
10:35AM
3.97
10:55PM
4.41
11:15AM
3.97
11:35PM
4.43
11:58AM
3.92
12:18AM
4.36
12:44PM
3.81
1:05AM
4.19
1:35PM
3.66
1:58AM
3.96
2:33PM
3.50
3:01AM
3.72
3:41PM
3.39
Low Tide
/ height (m)
2:23PM
1.09
2:53AM
0.99
3:09PM
0.92
3:37AM
0.80
3:50PM
0.77
4:19AM
0.64
4:30PM
0.65
4:59AM
0.52
5:08PM
0.58
5:39AM
0.45
5:45PM
0.58
6:19AM
0.43
6:23PM
0.63
6:59AM
0.47
7:01PM
0.73
7:40AM
0.55
7:42PM
0.85
8:24AM
0.69
8:27PM
1.00
9:14AM
0.85
9:24PM
1.13
10:15AM
1.00
10:39PM
1.21
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunrise5:03--5:03--5:05--5:05--5:07--5:07--5:09--5:11--5:11--5:13--5:15--5:16--
Sunset-9:42--9:40--9:39--9:38--9:37--9:37--9:37--9:36--9:34--9:32--9:31--9:30-
clearpart cloudpart cloudpart cloudpart cloudclearclearclearclearclearclearclearclearclearclearclearclearclearclearcloudlight rainpart cloudpart cloudpart cloudpart cloudclearpart cloudclearclearcloudclearpart cloudclearclearclearclear
Rain (mm)
--------------------1---------------
Temp. °C131516161718181919212323232425232526232517151616161717151717181920192021
Feels °C (?)101316171818171818202221232423222424212416121416171717131516181818191820

Short Range Forecast: Mostly dry. Very mild (max 19°C on Thu afternoon, min 13°C on Tue morning). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Sun night, min 19°C on Fri morning). Wind will be generally light.

Days 6-9 Weather Summary Some drizzle, heaviest during Mon night. Warm (max 25°C on Mon afternoon, min 14°C on Wed night). Wind will be generally light.

Long Range Forecast: Mostly dry. Warm (max 21°C on Sat night, min 14°C on Thu morning). Wind will be generally light.

  • 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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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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