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Surf Forecasts:
Harlech surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 11 am Tuesday 09 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Harlech surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Harlech sea temperature is
8.7° C
(Which is 1.9°C colder than average for this time of year)How big are the waves at Harlech today?
The current surf forecast for Harlech at 4PM is: 3.0m 12s primary swell from a Southwest direction (forecast issued at 11:00am December 09). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Dec) | 7ft (2.1m) | 11s |
| Afternoon (09 Dec) | 10ft (3.0m) | 12s |
| Evening (09 Dec) | 8ft (2.5m) | 13s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| 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) (?) | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 7 | 8 | 9 | 9 | 10 | 10 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 963 | 1374 | 2386 | 2993 | 2507 | 2440 | 1699 | 1527 | 1278 | 997 | 761 | 710 | 594 | 638 | 255 | 335 | 427 | 561 | 687 | 659 | 951 | 961 | 792 | 553 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | on | cross- on |
High Tide / height (m) | 10:48AM 4.32 | 11:17PM 3.64 | 11:39AM 4.01 | 12:11AM 3.31 | 12:36PM 3.70 | 1:14AM 3.05 | ||||||||||||||||||
Low Tide / height (m) | 6:20PM 0.52 | 6:28AM 0.94 | 7:14PM 0.73 | 7:20AM 1.13 | 8:10PM 0.92 | |||||||||||||||||||
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| Sunrise | 8:15 | - | - | - | - | - | - | - | 8:17 | - | - | - | - | - | - | - | 8:18 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - | - | - | - | - | 4:00 | - | - | - | - | - |
 |  | |  |  | | | |  | |  |  |  | | | | | | | | | | | | |
Rain (mm) | 5 | 6 | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 4 |
| Temp. °C | 14 | 14 | 13 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 10 | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 9 | 8 |
| Feels °C (?) | 7 | 6 | 3 | -1 | 1 | 1 | 2 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 4 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 6 | 6 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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