Surf Forecasts:
Porth Ceriad surf forecast from 5 Jul 2026:
- Most powerful swell: Tuesday 7 Jul, 1AM (local time) - 2.5ft (0.8m), 5s period, SW swell with 26 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 0.8m 5s and forecast to arrive on Tuesday (Jul 07) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Saturday (Jul 11) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Tue 7th Jul) | 2.5ft (0.8m) 5s |
Table - best surf conditions forecast for Porth Ceriad over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s look at what’s cooking for Porth Ceriad over the next couple weeks. Straight up, it’s a flat spell to start, so don’t bother waxing up just yet.
We’ve got a long quiet stretch from now all the way through to the end of the first week. From Sunday the 5th right through to Saturday the 11th, the swell is tiny or nonexistent – we’re talking 1 ft or less, with a weak combined energy (mostly single digits, max 16). The wind’s onshore or cross, water temp is a very unusual 64°F (much warmer than normal for this time of year), but none of that matters when there’s nothing to ride. A few mornings go glassy but with zero waves.
Sunday the 12th stays flat, Monday 13th shows a small 0.7 ft pulse but with a period of just 3 seconds – that’s no good. Even a little 0.3 ft groundswell with a 19-second period on Monday afternoon is way too weak to register. So yeah, the first week and a half is a write‑off.
Things finally tick up around Saturday 19th July. Sunday the 19th morning sees 4 ft from the west, short 5-second period, and a combined energy of 52 – moderate but weak. The afternoon is the first real flicker: 4 ft from the WSW, period still 5 seconds, combined energy jumps to 90. Wind goes offshore from the north at 9 mph. The report says “surfable waves but very ordinary conditions” – that’s about the best we get, but honestly it’s not a standout. For a beginner spot like Porth Ceriad, that 4 ft is fine, and the offshore wind will keep it clean, but the swell is short-period and small.
Monday 20th July afternoon sees 3 ft from the west, 6-second period, combined energy 83, and glassy conditions from the SSW. Again, surfable but nothing to write home about.
For the entire 16-day window, there’s no true standout. The best on offer is Sunday 19th afternoon with 4 ft west-southwest swell, offshore wind, and clean conditions – but even that is ordinary. Porth Ceriad is an exposed beginner break, and it’s fairly consistent, but this run is just flat for too long. It tends not to stay this poor for long, but right now, keep the board in the car.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Wed morning, min 15°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Fri morning, min 15°C on Fri night). Winds increasing (calm on Thu morning, fresh winds from the N by Fri afternoon). | ||||||||||||||||||||
Sun 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||||
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) | WSW 5 | SW 4 | SW 5 | SW 5 | SW 5 | SW 4 | NW 4 | W 12 | — | — | — | — | NW 3 | W 12 | W 11 | W 11 | W 8 | W 8 | W 8 | W 8 | NNW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 17 | 10 | 16 | 26 | 5 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | cross-on | on | on | cross-on | glassy | cross | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross | glassy |
High Tide | 00:38AM3.97m | 1:02PM3.51m | 1:23AM3.85m | 1:52PM3.41m | 2:16AM3.70m | 2:52PM3.32m | 3:19AM3.57m | 4:02PM3.32m | 4:32AM3.54m | 5:13PM3.44m | 5:43AM3.64m | 6:18PM3.68m | 6:47AM3.84m | ||||||||
Low Tide | 7:19PM0.97m | 7:58AM0.85m | 7:56PM1.09m | 8:39AM0.94m | 8:39PM1.19m | 9:26AM1.02m | 9:32PM1.27m | 10:24AM1.08m | 10:44PM1.28m | 11:38AM1.08m | 00:14AM1.18m | 1:00PM0.98m | 1:36AM0.93m | ||||||||
 |  |  | | | | |  | | | | | | | | | | | |  | | |
 | — | — | 5:01 | — | — | 5:01 | — | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 |
 | — | 9:44 | — | — | 9:43 | — | — | 9:42 | — | — | 9:42 | — | — | 9:40 | — | — | 9:39 | — | — | 9:38 | 9:37 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 16 | 18 | 16 | 17 | 17 | 16 | 17 | 17 | 19 | 20 | 20 | 20 | 22 | 22 | 24 | 23 | 18 | 24 | 22 | 26 | 23 |
Feels °C | 15 | 17 | 15 | 15 | 16 | 16 | 17 | 16 | 20 | 20 | 21 | 21 | 20 | 20 | 22 | 20 | 14 | 21 | 17 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | WSW 5 | W 9 | SW 5 | — | — | SW 4 | NW 4 | WSW 4 | — | — | — | — | — | — | W 11 | W 8 | W 8 | W 8 | W 8 | NNW 6 | NNW 6 |
| kJ | 10 | 2 | 10 | — | — | 5 | 3 | 1 | — | — | — | — | — | — | 2 | 1 | 1 | 1 | 1 | 68 | 12 |
Swell 2 Height (m) Direction Period (s) | NW 4 | — | — | — | — | NW 4 | SW 4 | — | — | — | — | — | — | W 12 | W 9 | W 11 | — | W 8 | — | W 8 | — |
| kJ | 1 | — | — | — | — | 3 | 3 | — | — | — | — | — | — | 3 | 2 | 2 | — | 1 | — | 1 | — |
Swell 3 Height (m) Direction Period (s) | NW 4 | — | — | — | — | — | — | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 4 | — | SW 5 | SW 5 | — | — | — | — | — | — | — | NW 3 | N 3 | N 3 | NNW 4 | NNW 5 | NNW 6 | NNW 6 | ENE 2 | ENE 2 |
| kJ | — | 17 | — | 16 | 26 | — | — | — | — | — | — | — | 1 | 2 | 1 | 13 | 43 | 87 | 127 | 1 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 404 | 252 | 296 | 296 | 261 | 303 | 306 | 213 | 199 | 303 | 248 | 301 | 303 | 186 | 130 | 125 | 181 | 306 | 273 | 195 | 303 |
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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