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Surf Forecasts:
Llandanwg surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 11 am Wednesday 18 Feb 2026 GMTForecast update in hr min s Forecast update imminent
Llandanwg surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llandanwg sea temperature is
7.1° C
(Which is slightly cooler than normal)How big are the waves at Llandanwg today?
The current surf forecast for Llandanwg at 4PM is: 0.4m 10s primary swell from a West-southwest direction and 0.2m 6s secondary swell from a South-southwest direction (forecast issued at 11:00am February 18). An open ocean swell of 1.1m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Feb) | 3.5ft (1.0m) | 4s |
| Afternoon (18 Feb) | 1.5ft (0.4m) | 10s |
| Evening (18 Feb) | 2ft (0.6m) | 10s |
Table - waves today at Llandanwg. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | |||||||||||||||||||||
| 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) (?) | 4 | 4 | 10 | 10 | 10 | 12 | 12 | 12 | 14 | 13 | 13 | 4 | 5 | 6 | 6 | 5 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 32 | 39 | 38 | 68 | 71 | 93 | 78 | 77 | 207 | 204 | 184 | 44 | 113 | 114 | 82 | 115 | 372 | 394 | 410 | 544 | 809 | 497 | 381 | 286 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | glass | cross | cross- on | cross | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 8:33AM 4.55 | 8:51PM 4.24 | 9:08AM 4.72 | 9:27PM 4.35 | 9:44AM 4.77 | 10:04PM 4.36 | ||||||||||||||||||
Low Tide / height (m) | 3:44PM 0.14 | 3:49AM 0.27 | 4:17PM 0.10 | 4:21AM 0.29 | 4:51PM 0.18 | 4:52AM 0.39 | ||||||||||||||||||
Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | |||||||||||||||||||||
| Sunrise | 7:28 | - | - | - | - | - | - | - | 7:26 | - | - | - | - | - | - | - | 7:24 | - | - | - | - | - | - | - |
| Sunset | - | - | 5:32 | - | - | - | - | - | - | - | 5:35 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - |
 | | |  |  | | | | | | |  | |  | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | 1 | 2 | 5 | 1 | - | - | - | - | - | - | - | - | 1 | - | 1 | - | - | 1 | 1 | 1 |
| Temp. °C | 4 | 4 | 4 | 4 | 4 | 3 | 2 | 3 | 3 | 4 | 5 | 7 | 6 | 6 | 7 | 8 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
| Feels °C (?) | -5 | -5 | -5 | -4 | -3 | -3 | -3 | 0 | 1 | 0 | 0 | 0 | -1 | 0 | 1 | -1 | 3 | 4 | 2 | 0 | 3 | 3 | 2 | 3 |
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