Surf Forecasts:
Porth Ceriad surf forecast from 19 Jul 2026:
- Most powerful swell: Sunday 26 Jul, 1AM (local time) - 2.5ft (0.7m), 5s period, SW swell with 22 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 0.7m 5s and forecast to arrive on Sunday (Jul 26) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Wednesday (Jul 22) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sun 26th Jul) | 2.5ft (0.7m) 5s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the table for Porth Ceriad over the next couple of weeks. I’ll be straight with you – it’s a tough stretch.
The pattern for this whole period is grim. There’s a long, dry gap right from the start. We’re looking at nothing but tiny, poor surf conditions for days on end. From Sunday the 19th all the way through to the morning of Saturday the 26th of July, there’s not a single wave worth paddling for. That’s a full week of flat, weak, or just plain messy ocean. You’d be better off waxing your board just to look at it.
The first real bump in the road comes on Sunday the 26th of July. The morning shows a bit of swell pushing in, 3ft from the southwest, but it’s short period at 6 seconds and the wind is a fresh cross-shore breeze. The combined energy is only 52 (weak), and the water is going to be lumpy with cross-chop. It’s not a surfer’s wave. The afternoon gets a little bigger, 5ft from the southwest, but the period drops to 5 seconds, making it even more of a mess. The energy is a bit higher at 115 (moderate), but the wind is still cross-shore creating chop. Honestly, this setup looks more interesting for kite surfing than paddle surfing.
Monday the 27th of July is a little cleaner, with a light cross-offshore breeze, but the swell has dropped right back to 2ft and 1ft. The energy is weak (21 and 10). It’s clean, but there’s hardly any wave to ride.
The rest of the outlook into early August is a total write-off. We’re talking tiny bumps, onshore winds, and poor conditions. The water temperature is about average for the time of year, so no surprises there.
The best of a very bad bunch is the afternoon of the 26th of July, but I can’t in good faith call it a standout. The swell is 5ft from the southwest, but it’s short-period and choppy. It’s the only time the energy gets into the moderate range (115), but the quality is poor. There’s nothing here for a beginner, and even an expert won’t find much joy. Crowds are often a problem here, but I doubt many will show up for this.
So, to sum it up: we’ve got a quiet, flat start that lasts over a week, then a short, messy pulse that doesn’t deliver. This is a tough one, lads. Keep your eye on the forecasts, because it tends not to stay this poor for long.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the NNW on Mon afternoon, light winds from the N by Mon night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Fri afternoon, min 11°C on Tue night). Winds decreasing (fresh winds from the NNW on Wed afternoon, light winds from the NNE by Thu night). | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NNW 5 | NNW 4 | N 4 | W 9 | W 8 | N 4 | NNW 5 | NNW 4 | W 16 | NNW 4 | NNW 5 | N 4 | NNW 5 | NNW 4 | N 5 | W 13 | W 13 | — | W 12 | W 12 | SW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 0 | 3 | 3 | 22 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off | cross-off | cross-off | glassy | cross-off | cross-on | cross |
High Tide | 12:29PM3.83m | 00:49AM4.19m | 1:15PM3.57m | 1:38AM3.80m | 2:07PM3.31m | 2:32AM3.43m | 3:07PM3.10m | 3:38AM3.13m | 4:19PM2.98m | 4:54AM2.99m | 5:31PM3.01m | 6:03AM3.01m | 6:32PM3.16m | ||||||||
Low Tide | 7:26AM0.32m | 7:30PM0.68m | 8:08AM0.62m | 8:12PM0.93m | 8:49AM0.93m | 8:56PM1.18m | 9:34AM1.21m | 9:49PM1.39m | 10:30AM1.41m | 11:05PM1.51m | 11:50AM1.50m | 00:39AM1.48m | 1:12PM1.43m | 1:49AM1.31m | |||||||
 | |  | | |  | | | |  | | | | | | | | | | |  | |
 | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — |
 | — | — | 9:30 | — | — | 9:30 | — | — | 9:28 | — | — | 9:27 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 16 | 19 | 17 | 15 | 15 | 16 | 17 | 19 | 17 | 14 | 17 | 16 | 14 | 16 | 17 | 17 | 19 | 18 | 15 | 17 | 17 |
Feels °C | 13 | 15 | 13 | 10 | 9 | 13 | 15 | 15 | 13 | 9 | 12 | 12 | 12 | 13 | 14 | 15 | 17 | 16 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | — | — | NNW 4 | W 9 | W 8 | — | NNW 5 | — | W 16 | — | — | — | — | — | — | N 4 | — | — | — | WNW 3 | — |
| kJ | — | — | 3 | 2 | 1 | — | 3 | — | 5 | — | — | — | — | — | — | 2 | — | — | — | 1 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 13 | — | W 12 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 3 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 13 | — | — | — | W 12 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | 3 | — |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 4 | N 4 | NNW 5 | NNW 4 | N 4 | NNW 5 | NNW 4 | N 4 | NNW 4 | NNW 5 | N 4 | NNW 5 | NNW 4 | N 5 | — | — | — | — | — | SW 5 |
| kJ | 4 | 8 | 7 | 8 | 16 | 11 | 11 | 25 | 13 | 33 | 67 | 18 | 10 | 13 | 4 | — | — | — | — | — | 22 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 312 | 319 | 303 | 312 | 312 | 303 | 270 | 306 | 77 | 77 | 638 | 77 | 320 | 556 | 303 | 307 | 1036 | 298 | 303 | 638 | 373 |
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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