Porth Ceriad Surf Break

Lat Long: 52.79° N 4.51° W

Porth Ceriad Surf Forecast and Surf Report

Issued: 6 am 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Porth Ceriad sea temperature is
18.8°C
3.0° 

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 30 Aug 2026:

  • Best quality surf: Saturday 5 Sep, 1PM (local time) - 2ft (0.6m), 6s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Friday 4 Sep, 7AM (local time) - 8ft (2.5m), 7s period, WSW swell with 705 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 1PM (local time) - 2ft (0.6m), 6s 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 Saturday (Sep 05) at 1PM. The primary swell is predicted to be 0.6m and 6s period with a secondary swell of 0.6m and 5s. 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 2.5m 7s and forecast to arrive on Friday (Sep 04) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Friday (Sep 04) at 10PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sat 5th Sep)2ft (0.6m) 6s
Best Surf 1PM (Sat 5th Sep)2ft (0.6m) 6s
Most Powerful 7AM (Fri 4th Sep)8ft (2.5m) 7s

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


The Lowdown

Alright folks, Rusty here. Let me be straight with you – it’s a tough run ahead. We’re looking at a long, long stretch where the conditions just aren’t coming together for a decent paddle. There’s a big gap of surf that’s simply not worth your time, and honestly, it’s going to feel like a bit of a drought. Let’s break it down.

The first real chance to even think about a wave comes Sunday morning, the 30th of August. Porth Ceriad is showing a tiny 3 ft swell from the SW, but it’s a total write-off. We’ve got a storm risk and a fresh 19 mph southerly wind blowing straight onshore. The water is sitting at 66°F, which is a whopping 5°F warmer than usual for this time of year – that’s very unusual. But that doesn’t save the surf. The combined energy is weak (118), and it’s just poor out there. That afternoon, it gets a bit bigger at 5 ft, but the wind stays on, and the period drops to 6 seconds, making it even messier.

Monday and Tuesday aren’t any better. The wind shifts, but it’s still cross or cross-on, and the swell is small and weak. The only glimmer is Monday morning, when the wind goes cross-off from the NW, cleaning up the 3 ft WSW swell, but the score is still zero. It’s just not enough.

Then we hit a real wall from Wednesday, the 2nd of September, through to the end of the first week. The swell picks up, but it’s accompanied by strong winds. Wednesday morning sees a 7 ft SW swell, but it’s with a 28 mph cross-on wind. That’s a lot of energy (347), but it’s blown out, messy, and strong. For a beginner spot like this, 7 ft is already too big. By Friday the 4th, it’s 8 ft from the WSW with the same strong breeze (657 energy), which is firmly in the "experts only" zone, and even then, it’s a messy cross-shore chop. For a beach setup like this, that’s more interesting for kite surfing than paddle surfing.

After that stormy mess, the surf drops right off. From Saturday the 5th of September onward, the swell is tiny, often under 2 ft, and the energy is pathetic. The wind does get clean – we see some glassy conditions on the morning of the 10th, and offshore winds on the 9th – but there’s no wave to ride. It’s a flat spell that stretches all the way to the end of the forecast on the 14th of September. That’s a solid 10-day gap of nothing worth paddling out for.

So, to be honest, there’s no standout. There’s no best on offer. The entire 16-day window is a write-off for Porth Ceriad. The combination of messy, strong winds on the bigger days and flat, clean days with no swell means there’s nothing to recommend. It’s a blank run, and for this area, that’s a bit of a tough stretch, but it happens. Forecasts can change, but right now, I’d say save your energy.

Rusty.

Short Range Forecast

Moderate rain (total 13mm), heaviest on Sun morning. Very mild (max 17°C on Sun morning, min 14°C on Mon morning). Mainly strong winds.

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Thu night. Very mild (max 18°C on Wed night, min 14°C on Thu night). Mainly strong winds.

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
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
SW
8
1.4
SW
6
1
SW
8
0.9
WSW
9
0.9
SW
9
0.7
SW
8
1.1
SW
5
1.3
SW
5
1.3
SW
5
2
SW
7
1.8
SW
6
1.9
SW
7
1.4
SW
5
1.8
SW
6
2.1
WSW
7
2.5
WSW
7
2.1
WSW
6
0.1
SW
14
0.7
SW
6
0.5
SW
6
0.8
SW
4
Wave Graph
Metric surfscale
Energy kJ
118
110
125
129
118
65
53
96
100
347
273
314
119
221
385
657
350
8
32
18
19
Wind (km/h)
30
S
30
SSW
15
WNW
35
NW
20
W
20
WSW
30
SW
35
SW
30
SW
45
SSW
40
SW
35
SW
30
WSW
35
SW
35
WSW
45
WSW
40
WSW
40
NW
20
NW
10
WSW
20
S
Wind State
on
on
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-on
on
High Tide
10:14AM4.29m
10:31PM4.67m
10:49AM4.33m
11:07PM4.61m
11:27AM4.26m
11:46PM4.43m
12:07PM4.09m
00:30AM4.13m
12:53PM3.82m
1:20AM3.76m
1:48PM3.50m
2:24AM3.37m
3:01PM3.24m
3:49AM3.13m
Low Tide
5:11PM0.35m
5:39AM0.26m
5:43PM0.44m
6:11AM0.42m
6:15PM0.60m
6:44AM0.65m
6:48PM0.80m
7:21AM0.92m
7:31PM1.04m
8:15AM1.21m
8:50PM1.27m
9:45AM1.42m
10:41PM1.35m
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
part cloud
rain showers
part cloud
rain showers
rain showers
cloud
part cloud
part cloud
light rain
rain showers
part cloud
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:24
6:26
6:28
6:30
6:31
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:12
8:09
8:07
8:05
8:02
8:00
7:58
 mm
3
3
3
1
3
1
1
6
Temp °C
17
17
16
15
17
16
16
16
17
17
17
18
16
17
15
16
17
16
14
14
14
Feels °C
13
12
13
9
14
13
11
11
12
11
11
14
11
12
10
9
10
9
11
12
11
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Porth Ceriad:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

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.


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.

Nearest locationNearest