
Surf Forecasts:
Porth Ceriad surf forecast from 22 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 1AM (local time) - 3ft (0.9m), 5s period, SW swell with glassy winds.
- Most powerful swell: Monday 27 Jul, 7PM (local time) - 4.5ft (1.3m), 6s period, SW swell with 107 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 1AM (local time) - 3ft (0.9m), 5s period with SW 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 Wednesday (Jul 29) at 1AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.9m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Porth Ceriad in the next 16 days are 1.3m 6s and forecast to arrive on Monday (Jul 27) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Wednesday (Jul 22) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 29th Jul) | 3ft (0.9m) 5s |
| Best Surf | 1AM (Wed 29th Jul) | 3ft (0.9m) 5s |
| Most Powerful | 7PM (Mon 27th Jul) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
The Lowdown
Alright, let’s get into it.
First up, I’m gonna be straight with you—this is a tough stretch for Porth Ceriad. The next 16 days are looking pretty grim, with barely a wave worth paddling out for. The whole forecast period is basically a write-off. There’s a long gap of no real surf from Wednesday the 22nd right through until the end of the month, with only tiny, weak, and messy pulses showing up. Nothing gets above a poor surf condition rating across the entire board.
We start off Wednesday the 22nd with a tiny 0.3ft northwest windswell, period a weak 6 seconds, and combined energy of just 1—barely a ripple. North wind at 16 mph is offshore, so it’s clean, but there’s nothing to ride. That continues through Thursday and Friday with similar tiny 0.3ft swells, though Friday morning has a bit of long-period 13-second groundswell from the west, but still only 0.3ft and energy of 3. Not enough to surf.
Saturday the 25th sees a little bump of 3ft from the west-southwest, but the period drops to a terrible 4 seconds, and it’s cross-onshore and choppy. Sunday the 26th is cleaner but still only 2ft max. Monday the 27th brings a 4ft southwest swell, but period is short at 5 seconds, cross-onshore wind, and energy only 58—weak, messy, and poor.
Tuesday the 28th is straight onshore with 2ft. Wednesday the 29th is cleaner but only 2ft. Thursday the 30th is glassy but a mere 1.0ft. Friday the 31st sees a jump to 4ft–5ft southwest swell, period still short at 6 seconds, and energy hits 141 (moderate), but it’s onshore or cross-onshore and choppy. Still poor.
Then we hit August. Saturday the 1st has 4ft to 5ft with rain and strong onshore wind—22 mph from the south. Energy jumps to 280 (moderate-strong), but with that wind and short period, it’s a mess. Sunday the 2nd morning has 7ft from the west, period 6 seconds, energy 318 (strong), but it’s cross-shore with chop. That’s too big for beginners and only for experts, but the wind and short period will make it lumpy. Probably more interesting for kite surfers than paddle surfing.
After that, Monday the 3rd and Tuesday the 4th drop back to 0.3ft–1.0ft, glassy but flat. Wednesday the 5th has a weird 2ft from the southeast with a 4-second period, and then Thursday the 6th has a 0.3ft southwest groundswell with a very long 11-second period, but energy is only 8 and wind is onshore.
Bottom line: there is no standout session here. The best of a bad lot is probably the 7ft west swell on Sunday August 2nd morning, but it’s windy, short period, and cross-shore. If you’re an expert looking for a challenge, maybe, but don’t expect much. For everyone else, this is a long, flat, and poor run.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Thu afternoon, min 11°C on Tue night). Winds decreasing (fresh winds from the N on Tue night, light winds from the WNW by Fri afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Fri night, min 14°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the NW by Sat night). | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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) | NW 6 | NNW 5 | NNW 5 | NNW 5 | NNW 4 | N 5 | W 13 | W 13 | — | — | WSW 4 | SW 4 | SW 6 | WSW 5 | SW 6 | SW 5 | SW 5 | SW 6 | SW 5 | SW 5 | SW 5 |
Wave Graph | |||||||||||||||||||||
1 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 0 | 0 | 19 | 7 | 16 | 8 | 8 | 16 | 58 | 86 | 23 | 16 | 38 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | off | off | cross-off | cross-off | cross-on | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | on | on | on | glassy |
High Tide | 3:07PM3.10m | 3:38AM3.13m | 4:19PM2.98m | 4:54AM2.99m | 5:31PM3.01m | 6:03AM3.01m | 6:32PM3.16m | 6:59AM3.15m | 7:22PM3.37m | 7:44AM3.33m | 8:04PM3.61m | 8:23AM3.51m | 8:41PM3.85m | ||||||||
Low Tide | 9:34AM1.21m | 9:49PM1.39m | 10:30AM1.41m | 11:05PM1.51m | 11:50AM1.50m | 00:39AM1.48m | 1:12PM1.43m | 1:49AM1.31m | 2:08PM1.25m | 2:38AM1.09m | 2:51PM1.04m | 3:18AM0.86m | 3:28PM0.83m | 3:55AM0.66m | |||||||
5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | |
— | — | 9:27 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:20 | — | — | 9:17 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 18 | 16 | 17 | 19 | 19 | 17 | 18 | 18 | 16 | 17 | 18 | 16 | 17 | 16 | 17 | 17 | 17 | 17 | 18 | 17 |
Feels °C | 13 | 13 | 12 | 14 | 15 | 16 | 16 | 17 | 17 | 13 | 15 | 17 | 11 | 15 | 13 | 14 | 13 | 14 | 14 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | NW 6 | — | NNW 5 | — | — | N 5 | N 4 | — | — | — | — | SW 4 | SW 6 | WSW 5 | SW 6 | — | — | — | SW 5 | NW 4 | SW 5 |
1 | — | 19 | — | — | 2 | 1 | — | — | — | — | 7 | 16 | 8 | 8 | — | — | — | 23 | 1 | 38 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 13 | W 13 | — | — | — | — | — | — | NNW 4 | — | — | — | WNW 4 | — | — |
— | — | — | — | — | — | 3 | 3 | — | — | — | — | — | — | 2 | — | — | — | 1 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 5 | N 4 | NNW 5 | NNW 4 | N 3 | — | — | — | — | WSW 4 | NW 3 | NW 4 | NNW 4 | SW 2 | SW 5 | SW 5 | SW 6 | — | SW 5 | WSW 5 |
41 | 61 | 18 | 23 | 17 | 2 | — | — | — | — | 19 | 4 | 5 | 11 | 1 | 16 | 58 | 86 | — | 16 | 37 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 303 | 914 | 307 | 248 | 312 | 301 | 411 | 1031 | 303 | 385 | 373 | 566 | 494 | 494 | 306 | 265 | 303 | 70 | 303 | 290 | 0 |
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.










