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Surf Forecasts:
Tywyn surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 11 am Thursday 11 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
9.3° C
(Which is 1.3°C colder than average for this time of year)How big are the waves at Tywyn today?
The current surf forecast for Tywyn at 3PM is: 1.6m 11s primary swell from a West-southwest direction (forecast issued at 11:00am December 11). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 4.5ft (1.3m) | 9s |
| Afternoon (11 Dec) | 5ft (1.6m) | 11s |
| Evening (11 Dec) | 4.5ft (1.3m) | 13s |
Table - waves today at Tywyn. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 10 | 11 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 12 | 18 | 17 | 16 | 16 | 6 | 7 | 8 | 8 | 8 | 8 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 305 | 478 | 550 | 598 | 569 | 491 | 514 | 346 | 346 | 269 | 204 | 165 | 256 | 103 | 307 | 214 | 82 | 152 | 282 | 365 | 394 | 439 | 433 | 402 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- off | cross | cross- off | on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross | cross | cross- on | cross | cross |
High Tide / height (m) | 12:38PM 3.66 | 1:17AM 3.02 | 1:44PM 3.39 | 2:31AM 2.90 | 2:57PM 3.24 | 3:45AM 2.96 | ||||||||||||||||||
Low Tide / height (m) | 8:13PM 0.89 | 8:19AM 1.25 | 9:11PM 1.03 | 9:21AM 1.35 | 10:12PM 1.11 | |||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | 8:15 | - | - | - | - | - | - | - | 8:17 | - | - | - | - | - | - | - | 8:18 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - | - | - |
 |  |  |  | |  | | | | | |  | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | 1 | 4 | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 11 | 12 | 12 | 11 | 11 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 9 | 10 | 9 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 2 | 3 | 5 | 6 | 5 | 6 | 5 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 3 | 3 | 2 | 2 | 1 | 3 | 2 | 3 | 3 |
- Map Icons:
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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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