Surf Forecasts:
Porth Towyn surf forecast from 10 Nov 2026:
- Best quality surf: Monday 16 Nov, 6PM (local time) - 11ft (3.5m), 8s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 16 Nov, 9AM (local time) - 15ft (4.5m), 10s period, SW swell with 4,576 kJ wave energy.
- Next surfable swell (1★+): Tuesday 10 Nov, 9AM (local time) - 2.5ft (0.8m), 11s period with SW swell.
Best Forecast Surf Conditions for Porth Towyn this week:
The surf forecast for Porth Towyn over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Nov 10) at 9AM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.1m and 18s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Porth Towyn in the next 16 days are 4.5m 10s and forecast to arrive on Monday (Nov 16) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 6s period and expected on Tuesday (Nov 24) at 12AM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Tue 10th Nov) | 2.5ft (0.8m) 11s |
| Best Surf | 6PM (Mon 16th Nov) | 11ft (3.5m) 8s |
| Most Powerful | 9AM (Mon 16th Nov) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Porth Towyn over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 10°C on Tue afternoon, min 7°C on Thu afternoon). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 13°C on Sun afternoon, min 6°C on Fri night). Winds increasing (calm on Fri afternoon, strong winds from the SSE by Sun morning). | ||||||||||||||||||
Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | ||||||||||||||
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 11 | SW 11 | SW 12 | SW 13 | SW 12 | SW 12 | SW 11 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 11 | SW 11 | SW 10 | SW 10 | SSW 7 | S 8 | SSW 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 183 | 183 | 259 | 488 | 430 | 367 | 168 | 104 | 100 | 60 | 29 | 29 | 20 | 29 | 37 | 17 | 474 | 717 | 1158 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | glassy | off | off | off | off | off | off | cross-off |
High Tide | 8:40AM3.73m | 9:00PM3.61m | 9:15AM3.70m | 9:35PM3.49m | 9:50AM3.60m | 10:11PM3.31m | 10:25AM3.45m | 10:47PM3.10m | 11:02AM3.27m | 11:25PM2.86m | 11:43AM3.06m | 00:08AM2.63m | |||||||
Low Tide | 3:25AM0.37m | 3:44PM0.34m | 3:57AM0.50m | 4:18PM0.43m | 4:29AM0.65m | 4:54PM0.56m | 5:03AM0.80m | 5:32PM0.73m | 5:40AM0.96m | 6:15PM0.90m | 6:21AM1.11m | 7:04PM1.06m | |||||||
 |  | |  | |  |  |  | | | | | | | | | | |  | |
 | — | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — |
 | — | — | 4:31 | — | — | 4:30 | — | — | 4:29 | — | — | 4:27 | — | — | 4:25 | — | — | 4:23 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 |
Temp °C | 8 | 9 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 8 | 7 | 7 | 9 | 8 | 11 | 13 | 13 |
Feels °C | 4 | 5 | 6 | 5 | 4 | 5 | 3 | 1 | 0 | 1 | 2 | 5 | 4 | 1 | 3 | 0 | 1 | 4 | 3 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 12 | SW 13 | SW 12 | SW 12 | SW 11 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 8 | SW 11 | SW 10 | SW 10 | SW 11 | — | — |
| kJ | 183 | 183 | 259 | 488 | 430 | 367 | 168 | 104 | 100 | 60 | 29 | 29 | 11 | 29 | 37 | 17 | 5 | — | — |
Swell 2 Height (m) Direction Period (s) | — | W 18 | WSW 15 | — | — | — | — | SW 10 | SW 10 | — | — | N 4 | SW 11 | SSW 8 | WSW 12 | — | — | — | — |
| kJ | — | 6 | 91 | — | — | — | — | 102 | 50 | — | — | 3 | 20 | 6 | 15 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 13 | — | SW 13 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 7 | — | 7 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 4 | ESE 4 | ESE 4 | E 3 | E 3 | ENE 3 | NNE 3 | N 5 | NNE 5 | N 5 | N 5 | — | SSE 2 | S 3 | S 4 | S 6 | SSW 7 | S 8 | SSW 9 |
| kJ | 18 | 16 | 7 | 5 | 5 | 7 | 4 | 41 | 45 | 25 | 10 | — | 1 | 5 | 14 | 224 | 474 | 717 | 1158 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 32 | 32 | 32 | 11 | 11 | 10 | 10 | 35 | 139 | 122 | 122 | 122 | 115 | 115 | 304 | 329 | 320 | 303 | 297 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Porth Towyn Surf forecast
The above surf forecast table for Porth Towyn provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porth Towyn can be found by selecting the local surf guide option on the grey menu. Our Porth Towyn 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 Towyn) 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 Towyn 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.
Are you planning a holiday in Lleyn Peninsula? If you are looking for accommodation near Porth Towyn, camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 34 km (21 miles) away. Other places in and around Lleyn Peninsula where you can find information about places to rent, and car hire include Anglesey which is 39 km (24 miles) away, Holyhead, Bangor and Aberystwyth.
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