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Surf Forecasts:
Harlech surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 11 am Saturday 21 Mar 2026 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
9.2° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Harlech today?
The current surf forecast for Harlech at 6PM is: 0.1m 9s primary swell from a West direction (forecast issued at 11:00am March 21). The wind direction is predicted to be glassy.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 0.5ft (0.1m) | 14s |
| Afternoon (21 Mar) | 0.5ft (0.1m) | 13s |
| Evening (21 Mar) | 0.5ft (0.1m) | 9s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 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) (?) | 14 | 13 | 13 | 9 | 9 | 9 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 3 | 4 | 5 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4 | 4 | 3 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 3 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 4 | 21 | 65 | 96 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | on | on | glass | glass | glass | glass | glass | glass | glass | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | glass | cross- on | cross- on | cross | cross | cross- on | cross- on | cross- on |
High Tide / height (m) | 9:21AM 4.89 | 9:41PM 4.61 | 10:01AM 4.75 | 10:22PM 4.47 | 10:44AM 4.45 | 11:05PM 4.20 | ||||||||||||||||||
Low Tide / height (m) | 4:22PM 0.12 | 4:31AM 0.27 | 4:58PM 0.36 | 5:09AM 0.47 | 5:37PM 0.68 | 5:55AM 0.74 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | 6:18 | - | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:34 | - | - | - | - |
 | | | |  | | | |  | | | |  | | | | | |  | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 12 | 12 | 10 | 9 | 8 | 7 | 7 | 8 | 10 | 10 | 9 | 8 | 6 | 5 | 5 | 6 | 8 | 8 | 7 | 8 | 8 | 9 | 9 |
| Feels °C (?) | 9 | 10 | 10 | 8 | 7 | 5 | 4 | 5 | 6 | 8 | 7 | 6 | 4 | 2 | 1 | 2 | 3 | 4 | 4 | 3 | 3 | 2 | 3 | 2 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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