Porth Ceriad Surf Break

Lat Long: 52.79° N 4.51° W

Porth Ceriad Surf Forecast and Surf Report

Issued: 6 pm 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Porth Ceriad sea temperature is
18.0°C
2.3° 

Porth Ceriad surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Porth Ceriad surf forecast from 5 Sep 2026:

  • Best quality surf: Monday 7 Sep, 7AM (local time) - 3ft (0.9m), 7s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 1PM (local time) - 3ft (0.9m), 13s period, SW swell with 257 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 7AM (local time) - 3ft (0.9m), 7s period with WSW swell.

Best Forecast Surf Conditions for Porth Ceriad this week:

The surf forecast for Porth Ceriad over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 7AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.3m and 15s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Porth Ceriad in the next 16 days are 0.9m 13s and forecast to arrive on Monday (Sep 07) 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 1.7m 6s period and expected on Wednesday (Sep 09) at 1AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Mon 7th Sep)3ft (0.9m) 7s
Best Surf 7AM (Mon 7th Sep)3ft (0.9m) 7s
Most Powerful 1PM (Mon 7th Sep)3ft (0.9m) 13s

Table - best surf conditions forecast for Porth Ceriad over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let's have a look at what's on the cards for our stretch of coast.

To be straight with you, the next couple of weeks are looking pretty flat and ordinary for Porth Ceriad. The weather and wind are just not playing ball for any decent paddle surfing. The water is sitting at 64°F with a positive anomaly of 4°F, so it's much warmer than we'd normally expect for this time of year, which is a nice touch for a paddle-out, but it won't save the surf.

The earliest we see any real action is the morning of Tuesday the 17th of September. That's a solid ten-day wait from the start of the forecast. There's a bit of a wait, but that morning might be our best shot. We've got a 5ft swell out of the West, with moderate wave energy (116). The wind is a light cross-offshore from the NE, keeping things clean. It's not huge, but it's surfable, and the conditions are looking tidy. The afternoon of the 17th goes glassy with a 4ft West swell, but it's a little smaller. For a spot that's fairly consistent, this is a long flat spell, but it won't stay poor forever.

So, if you're keen, the standout is the morning of Tuesday the 17th of September. Get on it early, because the rest of the forecast is a write-off.

Rusty.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Mon night. Warm (max 20°C on Sun afternoon, min 13°C on Mon night). Mainly fresh winds.

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Thu night. Very mild (max 17°C on Wed night, min 13°C on Tue night). Winds decreasing (fresh winds from the WNW on Tue night, light winds from the W by Wed night).

Sat
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
WSW
6
0.3
SW
6
0.7
SW
5
1.1
SW
6
1.2
SW
6
0.4
SW
14
1.4
SW
5
1.3
WSW
6
1.5
WSW
5
1.4
WSW
5
0.1
SW
10
0.7
WSW
6
0.6
WSW
5
0.6
WSW
4
0.6
SW
3
1.3
SW
6
1.4
SW
6
0.9
WSW
4
1
W
5
0.6
SW
7
Wave Graph
Metric surfscale
Energy kJ
23
7
28
75
96
52
87
123
112
117
4
28
17
12
7
107
147
29
43
43
Wind (km/h)
15
SW
25
SSE
30
SSE
30
S
30
SW
20
WSW
35
SW
40
WSW
35
W
35
W
35
WNW
30
WNW
15
W
10
W
20
SSW
30
SSW
40
SW
35
WNW
25
WNW
30
NW
Wind State
cross-on
on
on
on
cross-on
cross
cross-on
cross-on
cross
cross
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
High Tide
3:49AM3.13m
4:32PM3.23m
5:21AM3.19m
5:54PM3.50m
6:32AM3.46m
6:56PM3.92m
7:27AM3.80m
7:46PM4.33m
8:12AM4.10m
8:30PM4.65m
8:54AM4.33m
9:11PM4.83m
Low Tide
10:41PM1.35m
11:30AM1.41m
00:19AM1.15m
12:52PM1.16m
1:31AM0.77m
1:53PM0.82m
2:25AM0.38m
2:41PM0.50m
3:11AM0.08m
3:23PM0.27m
3:51AM-0.09m
4:02PM0.14m
part cloud
light rain
clear
part cloud
part cloud
part cloud
cloud
rain showers
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
rain showers
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:37
6:39
6:39
6:41
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:58
7:55
7:52
7:51
7:49
7:45
7:44
 mm
1
9
4
Temp °C
14
15
19
20
17
15
16
16
15
16
14
14
16
17
16
16
16
15
16
15
Feels °C
11
12
14
15
14
11
10
10
7
9
6
8
13
14
12
11
11
8
11
9
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  • 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 16 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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