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Surf Forecasts:
Harlech surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 12 pm Sunday 31 May 2026 BSTForecast 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
14.8° C
(Which is 3.2°C warmer than normal for this time of year)How big are the waves at Harlech today (31 May):
- Morning surf: Morning surf (31 May, local time) - 1.5ft (0.4m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 2.5ft (0.7m), 11s period with WSW swell.
- Evening surf: Evening surf (31 May, local time) - 1.5ft (0.4m), 11s period with WSW swell.
The current surf forecast for Harlech at 3PM is: 0.7m 11s primary swell from a West-southwest direction (forecast issued at 12:00pm May 31). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 1.5ft (0.4m) | 12s |
| Afternoon (31 May) | 2.5ft (0.7m) | 11s |
| Evening (31 May) | 1.5ft (0.4m) | 11s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 35mm), heaviest during Mon morning. Very mild (max 15°C on Mon afternoon, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | |
54 | 119 | 113 | 48 | 48 | 41 | 40 | 23 | 39 | 50 | 52 | 56 | 43 | 38 | 38 | 26 | 28 | 16 | 16 | 44 | 32 | 92 | 103 | 45 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross | cross | cross | cross | cross | cross-on | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross | |
High Tide | 8:50AM3.90m | 9:07PM4.04m | 9:26AM3.89m | 9:42PM4.05m | 10:01AM3.82m | 10:17PM4.01m | ||||||||||||||||||
Low Tide | 3:46PM0.82m | 4:10AM0.74m | 4:19PM0.85m | 4:46AM0.76m | 4:54PM0.89m | 5:25AM0.81m | ||||||||||||||||||
 |  |  | |  | |  | |  | | | |  |  | | | |  | | |  | | | | |
 | 4:58 | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:56 | — |
 | — | — | — | 9:29 | — | — | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:30 | — | — | — | 9:32 |
1 | — | — | — | — | — | — | 1 | 7 | 6 | 7 | 3 | 7 | 1 | — | 1 | — | — | — | — | — | — | — | 1 | |
Temp °C | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 13 | 14 | 15 | 15 | 14 | 14 | 13 | 13 | 14 | 15 | 15 | 14 | 14 | 13 | 12 | 12 |
12 | 11 | 12 | 12 | 11 | 10 | 9 | 10 | 10 | 12 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 12 | 13 | 12 | 12 | 12 | 9 | 7 | |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 5 | WSW 11 | WSW 11 | WSW 10 | SW 6 | SW 6 | SW 10 | SW 10 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | — | WSW 9 | — | W 16 | WSW 9 |
 kJ | 54 | 119 | 113 | 48 | 48 | 24 | 23 | 17 | 23 | 11 | 11 | 56 | 43 | 4 | 4 | 26 | 28 | 16 | 16 | — | 32 | — | 5 | 45 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | WSW 11 | WSW 11 | WSW 11 | WSW 11 | W 14 | W 14 | WSW 10 | WSW 10 | W 14 | W 14 | WSW 10 | W 13 | W 13 | WSW 9 | — | — | — | — | — |
| kJ | — | — | — | — | — | 41 | 40 | 23 | 23 | 4 | 4 | 10 | 10 | 4 | 4 | 9 | 3 | 3 | 7 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 15 | — | W 14 | W 14 | W 14 | — | W 13 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 4 | — | 4 | 4 | 4 | — | 3 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 5 | — | — | SW 6 | SW 5 | SW 5 | SW 5 | SSE 3 | SW 5 | SW 6 | SW 6 | — | — | SW 6 | SW 6 | — | — | — | — | WSW 8 | WSW 4 | WSW 9 | WSW 9 | SW 4 |
| kJ | 17 | — | — | 16 | 18 | 31 | 32 | 3 | 39 | 50 | 52 | — | — | 38 | 38 | — | — | — | — | 44 | 12 | 92 | 103 | 39 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 26 | 279 | 279 | 263 | 61 | 61 | 61 | 151 | 181 | 181 | 346 | 351 | 137 | 125 | 26 | 26 | 26 | 288 | 288 | 288 | 26 | 26 | 249 | 344 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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