Porth Ceriad Surf Break

Lat Long: 52.79° N 4.51° W

Porth Ceriad Surf Forecast and Surf Report

Issued: 12 pm 28 Jul 2026 (local time)

Forecast update in  hr  min

Today's Porth Ceriad sea temperature is
17.7° 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 28 Jul 2026:

  • Most powerful swell: Tuesday 4 Aug, 1AM (local time) - 5ft (1.6m), 7s period, SW swell with 234 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 1.6m 7s and forecast to arrive on Tuesday (Aug 04) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 30) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Tue 4th Aug)5ft (1.6m) 7s

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


The Lowdown

Imperial Version

Alright folks, Rusty here. Let me tell you straight up, it’s a rough patch ahead for the Porth Ceriad area. We’re looking at a 16-day window that’s got a whole lot of nothing in the early going, and even when things try to pick up, the conditions are fighting it every step of the way.

We start with a dry spell. From Tuesday the 28th of July all the way through to Monday the 3rd of August, there’s just nothing worth paddling out for. The wave energy is weak, barely cracking double digits, with tiny swell heights and chunky, short-period windswell. The wind is mostly cross-on or onshore, making a mess of things. It’s a write-off.

Tuesday the 4th of August finally shows a pulse of energy. The swell pushes up to 4ft from the SW with a period of 8 seconds, and the combined energy jumps to 182 (moderate energy). That’s the biggest number we see for a while. But – and it’s a big but – the wind is a fresh cross-onshore at 19 mph. That’s going to chop it up and make it lumpy. The water temperature is sitting at 64°F which is a notable 4°F warmer than usual for this time of year, so at least you won’t need a thick wetsuit, but the surf quality is going to be poor. It’s not a total loss for a beginner who just wants to get wet on a fairly consistent break, but don’t expect any beauty waves.

Wednesday the 5th of August is more of the same: 4ft swell from the WSW, but again that persistent cross-onshore wind at 16 mph. The energy drops back to 76 (weak). It’s messy. We then get a slump again through the 6th, 7th, and 8th, with tiny surf and poor or onshore wind.

The best window we can see is from Sunday the 9th of August into Tuesday the 11th. The swell is nothing special – only 3ft on Sunday morning from the SW, with a period of 7 seconds – but the wind turns cross-offshore from the WNW. That gives us clean conditions. The energy is a weak 59 (weak energy), so it’s small and weak, but at least it’s clean. Monday the 10th holds those clean, cross-off winds, though the swell stays tiny. The standout moment, if you can call it that, is Sunday the 9th morning. It’s the best of a bad bunch. The swell is coming from the SW, which is the optimum direction for this spot, and with the cross-off wind, it’ll be the cleanest we get. But don’t get your hopes up – it’s a small day for beginners only.

After that, the window closes again. The last few days show tiny surf and winds that are either cross-off or back onshore. Honestly, for the next two weeks, Porth Ceriad is a bust. The consistent nature of the break means it won’t stay this poor forever, but for this forecast, it’s a hard pass.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Tue afternoon, min 14°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Sun night, min 13°C on Fri night). Wind will be generally light.

Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
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)
1.1
SW
5
0.9
SW
5
0.6
WSW
5
0.6
SW
4
0.5
SW
4
0.7
SW
5
0.8
W
4
0.6
NW
4
0.4
SW
5
0.4
SW
5
0.4
SW
3
0.9
WSW
5
0.4
WSW
5
0.3
SW
5
0.2
WSW
4
0.1
SW
8
0.1
SW
8
0.2
WSW
9
0.4
SW
8
0.4
WSW
8
1.6
SW
7
Wave Graph
Metric surfscale
Energy kJ
65
42
15
16
8
22
20
12
6
5
2
36
9
3
3
3
3
8
18
26
234
Wind (km/h)
25
SSW
30
SW
20
SSW
20
S
20
SW
10
NW
25
WNW
10
SW
15
SE
5
WSW
20
SSW
20
NNW
15
WNW
5
SSW
5
ENE
10
E
15
NNE
15
ESE
20
E
10
SW
20
S
Wind State
cross-on
cross-on
cross-on
on
cross-on
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
glassy
glassy
cross
off
cross-on
cross
cross-on
on
High Tide
8:41PM3.85m
8:59AM3.68m
9:16PM4.07m
9:32AM3.82m
9:49PM4.25m
10:06AM3.92m
10:23PM4.38m
10:40AM3.99m
10:57PM4.42m
11:15AM4.00m
11:32PM4.39m
11:53AM3.96m
00:11AM4.27m
Low Tide
3:28PM0.83m
3:55AM0.66m
4:02PM0.66m
4:30AM0.51m
4:35PM0.55m
5:04AM0.42m
5:09PM0.50m
5:38AM0.39m
5:41PM0.53m
6:12AM0.44m
6:13PM0.62m
6:46AM0.54m
6:45PM0.75m
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:30
5:31
5:33
5:35
5:37
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:17
9:16
9:15
9:13
9:12
9:09
9:07
 mm
Temp °C
17
18
17
18
18
17
14
15
15
14
15
16
14
15
15
18
22
23
20
20
19
Feels °C
14
16
15
16
15
15
9
12
12
13
11
12
11
12
13
16
19
21
18
18
18
  • 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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