
Surf Forecasts:
Porth Ceriad surf forecast from 2 Jul 2026:
- Most powerful swell: Friday 3 Jul, 10PM (local time) - 3.5ft (1.1m), 5s period, SW swell with 74 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 1.1m 5s and forecast to arrive on Friday (Jul 03) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Friday (Jul 03) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Fri 3rd Jul) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, my friends, Rusty here again. Let's talk Porth Ceriad. We're in for a grim stretch, no two ways about it. The next ten days or so are essentially flat or blown out. The wave energy is a joke, barely registering on most days. You're looking at a lot of flat, choppy water.
The first real glimmer comes on Sunday, July 13th. The morning has a tiny 0.3ft ripple, but it's a *long-period* groundswell out of the west (19 seconds), which gives it a little bit of push (12 energy units). The wind is a light cross-onshore, not ideal. It cleans up in the afternoon with a cross-offshore breeze, but that long-period swell on a beach break can be tricky, just warbling straight through.
Now, Monday, July 14th is a better bet. The afternoon shows a 0.3ft south-west swell (18 seconds) under a clean cross-offshore wind. It's small but clean.
But Tuesday, July 15th, that's your day. Dawn patrol on the 15th is glassy with a 0.3ft west swell (16 seconds). Weak energy (6), but perfect, calm water. The real highlight, though, is Tuesday afternoon. That same 0.3ft west swell (16 seconds) meets a gentle offshore wind from the north. It will be clean, glassy, and probably the best wave of the entire two weeks. Expect to see a few other folks out, as Porth Ceriad can get crowded when it's clean, but the waves are just for you and your longboard.
That water is cooking, by the way. 64°F and a massive 6° anomaly above average – it's much warmer than it should be for this time of year.
The rest of the second week stays tiny. Thursday, July 16th gives you glassy conditions with a 0.3ft south-west swell. Friday, July 17th is a glassy start with a 0.3ft west swell fading, but the afternoon sees a funky little 3ft, short-period south-west swell that's actually rideable under a clean cross-offshore wind. Don't expect much.
It's a tough call, but keep your board ready for Tuesday the 15th.
Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Sat afternoon, min 14°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the SW by Sat afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Tue night, min 16°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thu 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | |||||||||||||||
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) | SW 7 | SW 6 | SW 6 | SW 4 | SW 5 | WSW 6 | WSW 5 | SW 5 | WSW 6 | SW 5 | SW 4 | SW 5 | SW 5 | SW 4 | WSW 4 | NW 4 | W 12 | — | — | — | — |
Wave Graph | |||||||||||||||||||||
53 | 19 | 8 | 12 | 55 | 53 | 39 | 35 | 21 | 6 | 8 | 8 | 7 | 9 | 2 | 2 | 3 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | on | cross-on | on | cross-on | glassy | glassy | on | glassy | glassy | cross-off | cross-off | cross |
High Tide | 10:44PM4.11m | 11:02AM3.72m | 11:20PM4.11m | 11:38AM3.67m | 11:57PM4.06m | 12:18PM3.60m | 00:38AM3.97m | 1:02PM3.51m | 1:23AM3.85m | 1:52PM3.41m | 2:16AM3.70m | 2:52PM3.32m | 3:19AM3.57m | ||||||||
Low Tide | 5:32PM0.73m | 6:04AM0.65m | 6:07PM0.77m | 6:42AM0.70m | 6:43PM0.85m | 7:20AM0.77m | 7:19PM0.97m | 7:58AM0.85m | 7:56PM1.09m | 8:39AM0.94m | 8:39PM1.19m | 9:26AM1.02m | 9:32PM1.27m | 10:24AM1.08m | |||||||
— | — | 4:58 | — | — | 4:58 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — | — | 5:03 | — | — | 5:03 | |
— | 9:45 | — | — | 9:45 | — | — | 9:44 | — | — | 9:44 | — | — | 9:43 | — | — | 9:42 | — | — | 9:42 | 9:40 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 15 | 18 | 19 | 21 | 20 | 17 | 19 | 19 | 17 | 20 | 19 | 18 | 20 | 21 | 21 | 22 | 23 | 22 |
Feels °C | 12 | 14 | 12 | 10 | 16 | 15 | 16 | 18 | 15 | 18 | 17 | 16 | 19 | 19 | 18 | 20 | 21 | 20 | 20 | 20 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 7 | SW 6 | SW 6 | — | W 11 | NW 4 | — | SW 5 | NW 4 | SW 5 | W 9 | SW 5 | — | SW 4 | WSW 4 | NW 4 | SW 4 | — | — | — | — |
53 | 19 | 8 | — | 2 | 2 | — | 35 | 2 | 6 | 2 | 8 | — | 9 | 2 | 2 | 1 | — | — | — | — | |
Swell 2 Height (m) Direction Period (s) | NW 5 | NW 4 | NNW 4 | W 11 | — | W 11 | — | W 10 | — | NW 4 | — | NW 4 | — | — | — | SW 4 | — | — | — | — | — |
21 | 4 | 1 | 2 | — | 2 | — | 2 | — | 3 | — | 1 | — | — | — | 1 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | W 11 | W 11 | — | — | — | — | W 10 | W 9 | — | — | — | — | — | — | — | W 12 | — | — | — | — |
— | 2 | 3 | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | 3 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NW 5 | — | — | SW 4 | SW 5 | WSW 6 | WSW 5 | NW 4 | WSW 6 | — | SW 4 | SW 5 | SW 5 | — | — | — | — | — | — | — | — |
13 | — | — | 12 | 55 | 53 | 39 | 5 | 21 | — | 8 | 6 | 7 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 125 | 126 | 298 | 247 | 252 | 404 | 138 | 252 | 252 | 223 | 265 | 306 | 245 | 304 | 306 | 213 | 186 | 270 | 186 | 199 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











