Porth Ceriad Surf Break

Lat Long: 52.79° N 4.51° W

Porth Ceriad Surf Forecast and Surf Report

Issued: 6 am 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:

  • Most powerful swell: Monday 7 Sep, 10PM (local time) - 7ft (2.2m), 7s period, WSW swell with 444 kJ wave energy.

Best Forecast Surf Conditions for Porth Ceriad this week:

The most powerful waves expected at Porth Ceriad in the next 16 days are 2.2m 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 1.7m 6s period and expected on Tuesday (Sep 08) at 10PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10PM (Mon 7th Sep)7ft (2.2m) 7s

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


The Lowdown

Right then, let’s have a look at what’s on the cards for Porth Ceriad. Honestly, it’s a bit of a rough stretch ahead. The overall pattern is a whole lotta wind and messy, lumpy conditions that are just gonna make things tough. There’s wave energy around, but the quality is missing for most of the period. We’ve got a massive gap here – almost no decent surf at all from the start until the very end of the 16-day window. It’s not going to be pretty.

Looking at the first week, we start on Monday the 7th with a WSW breeze already at 15 mph making a mess of a tiny 1ft SW swell. That’s a total no-go. The whole of that first week is plagued by strong onshore and cross-shore winds, with the swell jumping up a bit but always getting torn apart. By the afternoon of Tuesday the 8th, we see 5ft from the west, but it’s lumpy and cross-shore. Nothing to get excited about. The combined wave energy is fluctuating, hitting a moderate 121 on Tuesday afternoon, but it’s never clean enough. The wind just won’t give us a break.

We finally get a little glimmer of hope right at the end. On the morning of Tuesday the 22nd, the stars briefly align. We’ve got a clean 3ft swell coming from the southwest with a seven-second period, and here’s the game-changer: a light offshore breeze from the north at just 12 mph. That is going to clean it right up and offer some proper, rideable waves. The combined energy is still weak at 71, so don’t expect power, but for a beginner spot like this, clean conditions trump size every time. It’s not a standout for power, but it’s the only true standout for quality in the whole run. Bring a log. Porth Ceriad is exposed to the SW, and this direction works fine. Expect some crowds if you’re out there when it’s clean, it’s a popular little wave when it’s on.

Other than that, there are a couple of mornings with a cross-off breeze on the 9th and 11th, but the swell is tiny – under 3ft – and the energy is nearly non-existent. The afternoon of the 22nd cleans up further with a gentle offshore, but the swell drops right off. The rest of the second week just looks like more wind, more chop, and periods of strong breeze and near-gale conditions, especially on the 20th and 21st. The water temp is about average for this time of year, nothing strange there.

So, the one to go for is Tuesday the 22nd morning. It’s a long way off, so keep an eye on the forecast, but it’s the only moment where it’ll be worth getting wet.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Mon night. Very mild (max 16°C on Mon morning, min 13°C on Tue night). Winds decreasing (strong winds from the SW on Mon night, light winds from the WSW by Wed afternoon).

Days 4-6 Weather Summary

Moderate rain (total 12mm), heaviest on Sat afternoon. Very mild (max 18°C on Sat night, min 14°C on Thu night). Winds increasing (calm on Fri afternoon, strong winds from the SW 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)
0.4
SW
14
1.4
SW
5
2.1
WSW
7
1.3
W
5
1.2
W
5
0.6
WSW
6
0.7
WSW
8
0.5
SW
8
0.4
SW
8
0.8
SW
4
1.6
SW
6
1.4
SW
6
0.7
SW
7
0.5
SW
7
0.5
SW
8
1.1
SW
5
1.8
SW
6
1.4
SW
7
0.7
SW
7
0.6
SW
7
0.8
SW
4
Wave Graph
Metric surfscale
Energy kJ
52
94
373
75
0
23
52
31
15
25
144
139
46
24
28
47
228
163
50
29
18
Wind (km/h)
25
WSW
35
SW
40
WSW
30
WNW
35
WNW
40
NW
25
NW
15
WSW
25
SW
30
SSW
35
SW
30
WSW
25
NNW
15
NNW
15
SSW
35
SSW
45
SSW
30
SW
30
WNW
10
W
25
SSW
Wind State
cross
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
on
cross-on
cross-on
cross-off
cross-off
cross-on
on
cross-on
cross-on
cross-off
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
cloud
light rain
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
cloud
rain showers
part cloud
part cloud
clear
rain showers
mod rain
rain showers
part cloud
part cloud
part cloud
<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
4
3
1
6
2
Temp °C
16
16
16
14
16
15
13
14
15
16
16
16
14
15
14
15
15
18
16
16
15
Feels °C
11
10
8
8
9
7
8
10
11
11
10
10
9
11
12
9
8
14
13
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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