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Tywyn Surf Forecast
/ Wales – Mid (13 surf breaks) /
Surf Forecasts:
Tywyn surfForecast / Wales – Mid / UK
12 Day Weather and Surf, issued 11 pm Wednesday 17 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Tywyn surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tywyn sea temperature is
9.5° C
(Which is slightly cooler than normal)Best Forecast Surf Conditions for Tywyn this week:
The surf forecast for Tywyn over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 12PM. The primary swell is predicted to be 0.6m and 20s period with a secondary swell of 0.8m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tywyn in the next 12 days are 1.6m 19s and forecast to arrive on Thursday (Dec 18) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Saturday (Dec 20) at 3PM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Thu 18th Dec) | 2ft (0.6m) 20s |
| Best Surf | 12PM (Thu 18th Dec) | 2ft (0.6m) 20s |
| Most Powerful | 6PM (Thu 18th Dec) | 5ft (1.6m) 19s |
Table - best surf conditions forecast for Tywyn over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 28mm), heaviest during Wed night. Very mild (max 12°C on Wed night, min 8°C on Thu night). Winds increasing (light winds from the SE on Thu morning, strong winds from the SW by Thu night). | Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Sat night. Very mild (max 10°C on Sun night, min 5°C on Mon night). Winds decreasing (strong winds from the SE on Sat night, calm by Mon afternoon). | |||||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wed 24 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 10 | 20 | 19 | 6 | 9 | 6 | 9 | 9 | 11 | 11 | 16 | 16 | 10 | 9 | 9 | 9 | 8 | 8 | 9 | 8 | 7 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 371 | 284 | 267 | 171 | 608 | 188 | 207 | 255 | 397 | 193 | 302 | 86 | 37 | 17 | 21 | 19 | 7 | 7 | 3 | 2 | 1 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- off | cross | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | off | off | off | cross- off | glass | off | off | cross- off | cross- off | cross- off | cross- off | |
High Tide / height (m) | 6:52AM 3.67 | 7:10PM 3.65 | 7:28AM 3.83 | 7:46PM 3.73 | 8:03AM 3.95 | 8:21PM 3.78 | 8:38AM 4.04 | 8:56PM 3.79 | 9:13AM 4.08 | 9:31PM 3.76 | 9:49AM 4.09 | 10:07PM 3.69 | 10:27AM 4.05 | |||||||||
Low Tide / height (m) | 1:30AM 0.95 | 1:54PM 0.89 | 2:08AM 0.87 | 2:33PM 0.77 | 2:44AM 0.80 | 3:11PM 0.69 | 3:21AM 0.75 | 3:49PM 0.66 | 3:57AM 0.74 | 4:28PM 0.67 | 4:34AM 0.77 | 5:08PM 0.71 | 5:10AM 0.83 | 5:48PM 0.77 | ||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wed 24 | ||||||||||||||||
| Sunrise | - | 8:22 | - | - | 8:22 | - | - | 8:23 | - | - | 8:23 | - | - | 8:25 | - | - | 8:25 | - | - | 8:26 | - | |
| Sunset | - | - | 4:01 | - | - | 4:01 | - | - | 4:02 | - | - | 4:02 | - | - | 4:02 | - | - | 4:04 | - | - | 4:05 | |
 |  | |  |  | | |  | |  | | |  | | |  |  | | |  | | ||
Rain (mm) | 13 | 2 | 3 | 2 | 3 | 2 | 1 | - | 2 | 6 | 1 | - | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 12 | 10 | 10 | 9 | 9 | 9 | 9 | 10 | 9 | 8 | 8 | 9 | 10 | 8 | 8 | 7 | 7 | 8 | 8 | 9 | 8 | |
| Feels °C (?) | 4 | 5 | 6 | 0 | 1 | 2 | 3 | 2 | 0 | -1 | 1 | 3 | 5 | 6 | 6 | 5 | 4 | 5 | 4 | 5 | 4 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Tywyn 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.
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Information about the Tywyn Surf forecast
The above surf forecast table for Tywyn provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Tywyn can be found by selecting the local surf guide option on the grey menu. Our Tywyn 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 (Tywyn) 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 Tywyn 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 Mid Wales? If you are looking for accommodation near Tywyn, camping, hotels and holiday cottages in Mid Wales, consider staying in Aberystwyth which is 19 km (12 miles) away. Other places in and around Mid Wales where you can find information about places to rent, and car hire include Trawscoed which is 28 km (17 miles) away, Porthmadog, Aberporth and Welshpool.
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