Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Harlech surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 11 am Sunday 28 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
8.9° C
(Which is slightly cooler than normal)How big are the waves at Harlech today?
The current surf forecast for Harlech at 6PM is: 0.1m 16s primary swell from a West direction and 0.1m 12s secondary swell from a West direction (forecast issued at 11:00am December 28). The wind direction is predicted to be offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Dec) | 0.5ft (0.1m) | 13s |
| Afternoon (28 Dec) | 0.5ft (0.1m) | 12s |
| Evening (28 Dec) | 0.5ft (0.1m) | 16s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | |||||||||||||||||||||
| 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) (?) | 13 | 12 | 12 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 16 | 16 | 16 | 15 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3 | 3 | 3 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 4 | 4 | 4 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | off | off | off | cross- off | off | off | off | cross- off | off | cross- off | cross- off | off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | glass | glass |
High Tide / height (m) | 1:41PM 3.61 | 2:24AM 3.25 | 2:52PM 3.55 | 3:37AM 3.34 | 4:06PM 3.62 | 4:45AM 3.57 | ||||||||||||||||||
Low Tide / height (m) | 8:01AM 1.26 | 8:57PM 1.02 | 9:09AM 1.29 | 10:04PM 1.02 | 10:30AM 1.22 | 11:19PM 0.95 | ||||||||||||||||||
Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | |||||||||||||||||||||
| Sunrise | 8:27 | - | - | - | - | - | - | - | 8:29 | - | - | - | - | - | - | - | 8:29 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:06 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - |
 |  | |  |  | | | | | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 3 | 4 | 3 | 5 | 6 | 4 | 3 | 3 | 5 | 5 | 3 | 3 | 3 | 3 | 2 |
| Feels °C (?) | -2 | 0 | 0 | -2 | -2 | -1 | -1 | -3 | -3 | 0 | 1 | -1 | 1 | 2 | 0 | -1 | -1 | 1 | 1 | -1 | -1 | 0 | 0 | -1 |
- 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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