Surf Forecasts:
Llandanwg surf forecast from 7 Jun 2026:
- Best quality surf: Saturday 13 Jun, 1AM (local time) - 4ft (1.2m), 5s period, NW swell with cross-offshore winds.
- Most powerful swell: Monday 8 Jun, 1AM (local time) - 5ft (1.5m), 7s period, SW swell with 195 kJ wave energy.
- Next surfable swell (1★+): Saturday 13 Jun, 1AM (local time) - 4ft (1.2m), 5s period with NW swell.
Best Forecast Surf Conditions for Llandanwg this week:
The surf forecast for Llandanwg over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jun 13) at 1AM. The primary swell is predicted to be 1.2m and 5s period with a secondary swell of 0.2m and 5s. Another secondary swell of 0.1m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Llandanwg in the next 16 days are 1.5m 7s and forecast to arrive on Monday (Jun 08) 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 0.6m 4s period and expected on Saturday (Jun 13) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 13th Jun) | 4ft (1.2m) 5s |
| Best Surf | 1AM (Sat 13th Jun) | 4ft (1.2m) 5s |
| Most Powerful | 1AM (Mon 8th Jun) | 5ft (1.5m) 7s |
Table - best surf conditions forecast for Llandanwg over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Sun night. Very mild (max 15°C on Sat afternoon, min 10°C on Mon night). Winds increasing (light winds from the NW on Sun night, fresh winds from the WSW by Tue morning). | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Tue night. Very mild (max 14°C on Thu afternoon, min 10°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Sat 6 | Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||
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 13 | WSW 10 | SW 6 | SW 6 | SW 7 | WSW 8 | WSW 8 | WSW 6 | WSW 6 | WSW 6 | W 5 | W 4 | WSW 4 | W 5 | WSW 5 | WSW 6 | SW 7 | NW 5 | W 5 | NW 5 | NW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 342 | 302 | 104 | 100 | 195 | 74 | 52 | 145 | 195 | 107 | 45 | 33 | 23 | 47 | 21 | 15 | 23 | 35 | 21 | 68 | 25 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross | cross | cross | cross | cross | cross | cross-off | cross |
High Tide | 00:54AM3.58m | 1:20PM3.13m | 1:45AM3.47m | 2:20PM3.06m | 2:46AM3.42m | 3:29PM3.09m | 3:55AM3.46m | 4:39PM3.26m | 5:02AM3.61m | 5:41PM3.53m | 6:03AM3.85m | 6:36PM3.85m | 6:59AM4.10m | ||||||||
Low Tide | 7:37PM1.23m | 8:24AM1.13m | 8:25PM1.30m | 9:14AM1.13m | 9:18PM1.34m | 10:07AM1.08m | 10:16PM1.32m | 11:04AM0.99m | 11:20PM1.22m | 12:04PM0.87m | 00:27AM1.05m | 1:06PM0.73m | 1:33AM0.83m | ||||||||
 |  |  | |  |  | | |  | |  | | | | |  |  | | |  | | |
 | — | — | 4:54 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:50 | — | — | 4:50 |
 | — | 9:36 | — | — | 9:37 | — | — | 9:37 | — | — | 9:37 | — | — | 9:38 | — | — | 9:39 | — | — | 9:40 | 9:40 |
mm | 1 | 1 | 1 | 1 | 9 | — | 1 | 6 | 2 | 1 | 5 | 2 | 3 | 6 | 1 | — | — | — | — | — | — |
Temp °C | 15 | 13 | 15 | 15 | 13 | 12 | 12 | 11 | 12 | 13 | 11 | 12 | 12 | 11 | 12 | 14 | 13 | 14 | 14 | 13 | 15 |
Feels °C | 12 | 9 | 10 | 9 | 8 | 8 | 6 | 5 | 5 | 7 | 6 | 7 | 6 | 7 | 8 | 10 | 10 | 11 | 12 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 10 | — | — | — | — | WSW 8 | NW 4 | — | — | — | — | — | NW 4 | — | WSW 5 | WSW 6 | SW 7 | WSW 8 | — | WSW 5 | WSW 5 |
| kJ | 148 | — | — | — | — | 74 | 1 | — | — | — | — | — | 4 | — | 21 | 15 | 23 | 22 | — | 3 | 2 |
Swell 2 Height (m) Direction Period (s) | WSW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 5 | WNW 4 | — | — | — | SW 7 | W 7 |
| kJ | 156 | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 1 | — | — | — | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 13 | WSW 10 | SW 6 | SW 6 | SW 7 | NW 4 | WSW 8 | WSW 6 | WSW 6 | WSW 6 | W 5 | W 4 | WSW 4 | W 5 | — | — | — | NW 5 | W 5 | NW 5 | NW 6 |
| kJ | 342 | 302 | 104 | 100 | 195 | 3 | 52 | 145 | 195 | 107 | 45 | 33 | 23 | 47 | — | — | — | 35 | 21 | 68 | 25 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 277 | 379 | 306 | 128 | 25 | 290 | 306 | 449 | 461 | 277 | 311 | 367 | 448 | 333 | 135 | 217 | 262 | 337 | 13 | 129 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Llandanwg surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Llandanwg Surf forecast
The above surf forecast table for Llandanwg provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Llandanwg can be found by selecting the local surf guide option on the grey menu. Our Llandanwg 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 (Llandanwg) 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 Llandanwg 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.
Llandanwg is 10 km (6 miles) from Porthmadog. If you plan a holiday in Mid Wales, 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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