Surf Forecasts:
Porth Ceriad surf forecast from 2 Jul 2026:
- Most powerful swell: Sunday 5 Jul, 4AM (local time) - 3.5ft (1.0m), 6s period, WSW swell with 77 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 1.0m 6s and forecast to arrive on Sunday (Jul 05) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Thursday (Jul 02) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Sun 5th Jul) | 3.5ft (1.0m) 6s |
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 have a look at what Porth Ceriad's got cooking for us over the next couple of weeks.
Right off the bat, I gotta be straight with you: it’s a grim start. The first few days are a write-off. The swell is tiny, the wind is all over the shop – onshore, cross-onshore… just messy. Thursday the 2nd of July might have a little waist-high bump from the SW around 3ft, but the 16 mph NW wind is going to ruin any chance of a decent wave. It’s a tough scene.
This flat spell really digs in. From the 3rd all the way through to the 8th of July, we're looking at ankle-snappers and knee-high dribble at best. The wind is just awful, mostly onshore or cross-onshore, keeping the surface lumpy and bumpy. You’re better off staying in bed or fixing that ding.
The middle of the week looks flat as a pancake. The 9th and 10th of July offer glassy conditions and offshore breezes, which is a tease because there’s absolutely no swell to push through. It’s torture, honestly. That calm, clean water just mocks you.
Then, a glimmer. Starting Sunday the 12th of July, the wind goes clean offshore. We’ve got NNW breezes hitting 12-22 mph through Monday and Tuesday, which would be perfect if there was any swell. But there isn't. It's just flat with a nice surface. You could paddle a SUP, I guess.
The real kicker? We go nearly two full weeks with no decent surf. It’s not until Wednesday the 15th of July that we see the tiniest hint of life – a 0.3ft, 16-second period groundswell from the W. That long period (16 seconds) gives it some energy, but the combined swell energy is only 12 (weak). In glassy conditions, you might find a tiny, clean ripple, but that's it.
Even the last few days of the forecast (16th & 17th) are just tiny 0.3ft, long-period leftovers. The water temp on the only day it's recorded (Thursday morning, 2nd July) is 64°, which is a massive 6° warmer than normal for this time of year. That’s very unusual, but not much use with no waves.
Honestly, lads, there isn't a standout session in this entire 16-day window. The best day for a paddle in perfect conditions would be the 11th or 12th, but you'll need a longboard to catch a ripple. There’s just nothing to get excited about.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sat afternoon, min 14°C on Thu morning). Winds increasing (calm on Thu night, fresh winds from the SW by Sat morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Tue night, min 15°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | |||||||||||||||
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) | SW 7 | SW 7 | SW 6 | SW 6 | SW 6 | SW 5 | WSW 6 | SW 4 | WSW 6 | WSW 6 | WSW 5 | WSW 4 | SW 5 | SW 4 | SW 5 | WSW 4 | SW 4 | SW 4 | WSW 4 | WSW 4 | SW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 102 | 53 | 19 | 8 | 8 | 51 | 41 | 28 | 71 | 21 | 15 | 11 | 9 | 12 | 38 | 18 | 9 | 4 | 2 | 2 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | glassy | cross-off | cross-off | cross-off |
High Tide | 10:26AM3.74m | 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 | ||||||||
 | |  |  |  |  | | | | | | | | | | | | | | |  | |
 | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — | — | 5:03 | — | — |
 | — | — | 9:45 | — | — | 9:45 | — | — | 9:44 | — | — | 9:44 | — | — | 9:43 | — | — | 9:42 | — | — | 9:42 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 16 | 16 | 15 | 15 | 19 | 18 | 20 | 20 | 16 | 18 | 18 | 16 | 18 | 20 | 18 | 20 | 21 | 19 | 22 | 21 |
Feels °C | 9 | 13 | 13 | 13 | 11 | 17 | 13 | 16 | 17 | 16 | 18 | 16 | 14 | 14 | 17 | 18 | 20 | 22 | 18 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | SW 7 | SW 7 | SW 6 | SW 6 | — | W 11 | W 11 | W 11 | W 10 | NW 4 | WSW 5 | W 9 | NW 4 | — | — | NW 4 | NW 4 | SW 4 | WSW 4 | NNW 4 | SW 4 |
| kJ | 102 | 53 | 19 | 8 | — | 2 | 2 | 2 | 2 | 2 | 15 | 2 | 2 | — | — | 2 | 2 | 4 | 2 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | — | NW 5 | NW 4 | NNW 3 | W 11 | — | — | — | — | W 10 | NNW 4 | — | — | — | — | — | — | — | — | WSW 4 | — |
| kJ | — | 21 | 3 | 1 | 2 | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — | 2 | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 11 | W 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 12 | — | — | — |
| kJ | — | — | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | — | — | — | SW 6 | SW 5 | WSW 6 | SW 4 | WSW 6 | WSW 6 | — | WSW 4 | SW 5 | SW 4 | SW 5 | WSW 4 | SW 4 | — | NNW 4 | — | — |
| kJ | 58 | — | — | — | 8 | 51 | 41 | 28 | 71 | 21 | — | 11 | 9 | 12 | 38 | 18 | 9 | — | 1 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 126 | 3 | 107 | 132 | 298 | 201 | 252 | 404 | 138 | 252 | 252 | 239 | 247 | 296 | 290 | 385 | 400 | 303 | 199 | 306 | 213 |
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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