Surf Forecasts:
Porth Ceriad surf forecast from 13 Jul 2026:
- Most powerful swell: Tuesday 14 Jul, 4PM (local time) - 0.5ft (0.1m), 18s period, SW swell with 12 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 0.1m 18s and forecast to arrive on Tuesday (Jul 14) at 4PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Jul 14) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Tue 14th Jul) | 0.5ft (0.1m) 18s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with ya – this is a tough one to write. We're looking at a long, dry spell for Porth Ceriad. The first good surf just isn't on the cards.
Let's get the bad news out of the way. From Monday the 13th of July right through to the morning of Wednesday the 22nd, it's a total flat spell. We're talking barely a ripple, with swell heights hanging around 0.3 ft and combined energy readings in the pathetic single digits. Every single session is marked as "poor surf conditions." The wind is clean and offshore a lot of the time, which is a cruel tease. On Friday the 17th, we even get a glassy morning, but with zero swell to work with, it's just a pretty pond. That's a solid nine-day gap with nothing to recommend.
There's a slight flicker of life on the 22nd of July. The Wednesday morning shows a tiny 1 ft of swell from the SW, with a light offshore wind from the N. Energy is still weak (3), but it's the first sign of something. The afternoon on the 22nd holds a similar 1.0 ft with a gentle offshore. Nothing to paddle for, but it’s a hint that the ocean hasn't totally forgotten how to move.
The next week looks messy. Around the 24th of July, we see a bump in size – 3 ft on Friday afternoon, and 2 ft on Saturday morning from the SW. But the wind is a disaster. It's coming from the SW at 15 mph, cross-onshore, creating choppy and bumpy conditions. The energy readings are still only moderate (44). It's the kind of junky surf that's more hassle than it's worth. By the 26th and 27th, the wind is howling out of the south at 35-40 mph, bringing rain and completely blowing the place out. The swell is small, the wind is howling, and the setup looks more interesting for kite surfing than paddle surfing.
So, there's no standout here. Not a single session worth highlighting. There are no good surf options in this 16-day window. The water temperature on the 13th was 66°, which is a massive 7° warmer than normal – very unusual for the time of year. But with no waves, it doesn't matter much. It's a blank run. Porth Ceriad is an exposed SW-facing spot, and when it's not working, it's just not working. Forecasts can change, but for now, save your energy.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed night, min 16°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Thu afternoon, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | W 19 | W 15 | W 18 | SW 18 | W 14 | W 16 | SW 16 | E 3 | SW 14 | SW 14 | SW 8 | W 12 | SW 12 | SW 13 | SW 6 | S 6 | SW 11 | NNW 5 | NNW 4 | — | — |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 4 | 6 | 12 | 4 | 5 | 10 | 6 | 8 | 8 | 2 | 3 | 6 | 6 | 1 | 1 | 5 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | cross-on | cross-off | off | cross-off | glassy | cross-off | off | off | cross-off | off | off | off | off | off |
High Tide | 8:09PM4.31m | 8:36AM4.23m | 8:59PM4.59m | 9:25AM4.33m | 9:46PM4.77m | 10:12AM4.33m | 10:33PM4.82m | 10:58AM4.23m | 11:18PM4.74m | 11:43AM4.06m | 00:03AM4.51m | 12:29PM3.83m | 00:49AM4.19m | ||||||||
Low Tide | 3:37AM0.29m | 3:56PM0.38m | 4:27AM0.05m | 4:42PM0.26m | 5:14AM-0.07m | 5:26PM0.24m | 6:00AM-0.05m | 6:08PM0.31m | 6:44AM0.09m | 6:50PM0.46m | 7:26AM0.32m | 7:30PM0.68m | 8:08AM0.62m | ||||||||
 |  | | | | | | | | | | | |  |  | | | | | | | |
 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 |
 | — | 9:37 | — | — | 9:37 | — | — | 9:36 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 | — | — | 9:30 | 9:30 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 22 | 25 | 25 | 23 | 25 | 26 | 23 | 25 | 22 | 22 | 24 | 21 | 16 | 18 | 17 | 16 | 19 | 17 | 17 |
Feels °C | 20 | 19 | 19 | 21 | 21 | 23 | 22 | 22 | 22 | 21 | 17 | 21 | 21 | 17 | 14 | 14 | 12 | 14 | 13 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | W 19 | NNW 4 | W 18 | SW 18 | N 4 | ESE 3 | SW 7 | N 5 | SW 6 | SW 14 | NNW 4 | SW 7 | SW 7 | SW 6 | SW 6 | S 6 | SW 11 | NNW 5 | — | — | — |
| kJ | 7 | 3 | 6 | 12 | 6 | 2 | 2 | 2 | 1 | 8 | 5 | 2 | 2 | 1 | 1 | 1 | 5 | 5 | — | — | — |
Swell 2 Height (m) Direction Period (s) | W 15 | — | — | — | W 14 | — | SW 16 | SW 6 | SW 14 | SW 6 | SW 8 | — | SW 12 | SW 13 | — | — | — | — | — | — | — |
| kJ | 4 | — | — | — | 4 | — | 10 | 2 | 8 | 1 | 2 | — | 6 | 6 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | W 15 | — | W 11 | S 7 | W 16 | — | W 13 | — | W 8 | S 6 | W 12 | — | W 13 | — | — | — | — | — | — | — |
| kJ | — | 4 | — | 2 | 1 | 5 | — | 3 | — | 1 | 1 | 3 | — | 3 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ENE 3 | NE 3 | N 4 | E 3 | — | — | E 3 | E 3 | NNW 3 | ENE 3 | — | NNW 2 | N 4 | NNW 3 | NNW 3 | N 4 | — | NNW 4 | — | — |
| kJ | — | 2 | 1 | 4 | 5 | — | — | 6 | 1 | 3 | 3 | — | 1 | 4 | 1 | 4 | 6 | — | 4 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 293 | 273 | 133 | 189 | 248 | 254 | 377 | 306 | 308 | 297 | 213 | 254 | 629 | 322 | 350 | 319 | 303 | 316 | 380 | 303 | 314 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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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