Porth Ceriad Surf Break

Lat Long: 52.79° N 4.51° W

Porth Ceriad Surf Forecast and Surf Report

Issued: 12 pm 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Porth Ceriad sea temperature is
17.9°C
2.2° 

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 7 Sep 2026:

  • Best quality surf: Friday 11 Sep, 1PM (local time) - 2.5ft (0.7m), 9s period, SW swell with offshore winds.
  • Most powerful swell: Monday 7 Sep, 10PM (local time) - 7.5ft (2.3m), 7s period, WSW swell with 508 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 1PM (local time) - 2.5ft (0.7m), 9s period with SW 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 Friday (Sep 11) at 1PM. The primary swell is predicted to be 0.7m and 9s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Porth Ceriad in the next 16 days are 2.3m 7s and forecast to arrive on Monday (Sep 07) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Tuesday (Sep 08) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Fri 11th Sep)2.5ft (0.7m) 9s
Best Surf 1PM (Fri 11th Sep)2.5ft (0.7m) 9s
Most Powerful10PM (Mon 7th Sep)7.5ft (2.3m) 7s

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


The Lowdown

Alright, folks, Rusty here. Let’s be straight with you: the next couple of weeks at Porth Ceriad are looking pretty bleak. The swell's just not there, and when there is something, the wind's gonna be all over it. It’s one of those stretches where you’re better off sorting out your gear or finding another hobby for a bit. There's a real dry spell, a good week to ten days where you won't need to wax up.

Looking at the start of the period, Monday the 7th kicks off with a bit of lumpy, cross-onshore slop pushing in around 3ft on a 14-second swell, but that’s quickly chopped to bits by that 16 mph WSW wind. The water temps are up at 64°, which is a good 4° warmer than normal for this time of year—that's a pretty big deal, so at least you won't need a thick suit. But that’s where the good news ends. By Monday afternoon, the wind jumps to 25 mph and it’s just a messy 5ft of windswell. Forget it.

The next few days are more of the same. Tuesday the 8th has a cleaner 4ft cross-off swell, but it's only a 5-second period, all gutless with no push. The energy is weak before it just drops away. Wednesday brings some small, clean surf, but we're talking knee-high dribble at 2ft. The long-range forecast for the whole week is honestly poor.

There’s a slight bump around the 14th, with a 5ft onshore mess on Monday afternoon, but the wind is howling onshore at 25 mph. That’s not surf; that’s just whitecaps. The surf quality remains poor, and it’s not even worth thinking about paddling out in that chaos. It won't be long before the novelty of getting sand in your wetsuit wears off.

It's a bit of a blank run, but that's not unusual for this spot. Don’t hold your breath for the second week, either. The models are suggesting nothing but tiny, weak pulses and onshore breezes. There’s a whisper of a clean, long-period swell around Wednesday the 16th, but it's a massive 0.3ft and an 11-second period—basically a ripple. The best I can say is that the water will be clean, but you'll need a longboard and a lot of patience to catch anything.

Just to give you the full picture, the energy readings are all weak, with most days showing combined energy values of 50 or less, and frequently dropping into the single digits or even zero by the 20th and 21st. It’s flat, plain and simple. A couple of the later days have signs of life on the 22nd, but it’s accompanied by a 31 mph near-gale. Honestly, that setup looks more interesting for kite surfing than paddle surfing. For now, hang loose, keep the board in the car, and maybe check back in a week. The ocean will sort itself out; it always does.

This is Rusty, signing off.

Short Range Forecast

Light rain (total 6mm), mostly falling on Mon night. Very mild (max 16°C on Mon morning, min 13°C on Mon night). Winds decreasing (strong winds from the SW on Mon afternoon, light winds from the WSW by Wed afternoon).

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Sat night. Very mild (max 18°C on Sat night, min 13°C on Fri night). Winds increasing (light winds from the S on Fri night, strong winds from the SSW by Sat afternoon).

Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
AM
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
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
WSW
14
1.5
SW
5
1.9
WSW
7
1.3
W
5
1.3
W
5
0.6
WSW
5
0.5
SW
8
0.4
SW
8
0.4
SW
8
0.8
SW
4
0.8
SW
4
1.2
SW
5
0.7
SW
6
0.6
WSW
8
0.5
SW
8
0.6
SW
7
0.7
SW
4
1.3
SW
6
0.9
SW
6
0.7
SW
6
0.8
SW
4
Wave Graph
Metric surfscale
Energy kJ
321
124
332
78
0
19
31
16
15
21
26
74
37
47
32
34
19
107
68
43
23
Wind (km/h)
25
WSW
40
SW
35
WSW
30
WNW
30
WNW
30
NW
30
NW
10
WSW
25
SW
30
S
30
SSW
30
SW
25
NNW
20
NNW
5
ESE
25
S
30
SSW
40
SSW
25
W
10
W
20
SSW
Wind State
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
on
cross-on
cross-on
cross-off
cross-off
cross
on
cross-on
cross-on
cross
cross
on
High Tide
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
9:33AM4.45m
9:50PM4.85m
10:10AM4.47m
10:28PM4.72m
Low Tide
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
4:29AM-0.11m
4:37PM0.12m
5:03AM0.00m
5:10PM0.20m
cloud
light rain
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
rain showers
rain showers
clear
part cloud
part cloud
light rain
mod rain
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:39
6:39
6:41
6:43
6:45
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:52
7:51
7:49
7:45
7:44
7:40
7:38
 mm
1
5
2
1
2
8
Temp °C
16
16
15
14
16
15
13
14
15
16
16
16
15
15
14
15
15
18
16
16
15
Feels °C
12
10
7
7
9
8
8
12
10
11
11
11
11
11
12
10
9
14
12
15
13
  • 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 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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