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Whistling Sands (Porth Oer) Surf Forecast
/ Wales – Lleyn (14 surf breaks) /
Surf Forecasts:
Whistling Sands (Porth Oer) surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 6 pm Wednesday 20 May 2026 BSTForecast update in hr min s Forecast update imminent
Whistling Sands (Porth Oer) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Whistling Sands (Porth Oer) sea temperature is
11.2° C
(Which is normal for this time of year)How big are the waves at Whistling Sands (Porth Oer) today?
The current surf forecast for Whistling Sands (Porth Oer) at 1AM is: 1.4m 8s primary swell from a Southwest direction and 1.1m 8s secondary swell from a Southwest direction (forecast issued at 06:00pm May 20). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 4.5ft (1.4m) | 6s |
| Afternoon (21 May) | 4.5ft (1.3m) | 7s |
| Evening (21 May) | 3.5ft (1.0m) | 7s |
Table - waves today at Whistling Sands (Porth Oer). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Very mild (max 16°C on Thu afternoon, min 12°C on Wed afternoon). Winds decreasing (fresh winds from the SW on Wed afternoon, light winds from the SSW by Fri night). | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 6 | SW 6 | SW 6 | SW 8 | SW 8 | SW 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SSW 8 | SSW 9 | SW 9 | SW 7 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | |
315 | 228 | 193 | 221 | 75 | 188 | 162 | 149 | 143 | 118 | 91 | 117 | 221 | 196 | 122 | 177 | 157 | 157 | 151 | 145 | 138 | 115 | 77 | 74 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 11:51PM4.04m | 12:24PM3.52m | 00:46AM3.80m | 1:23PM3.20m | 1:48AM3.57m | |||||||||||||||||||
Low Tide | 6:32PM0.57m | 7:11AM0.36m | 7:27PM0.78m | 8:12AM0.55m | 8:27PM0.97m | 9:17AM0.71m | ||||||||||||||||||
 | |  |  |  |  | | | | | | | | | | | | | | | |  | | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — |
 | — | 9:15 | — | — | — | — | — | — | — | 9:17 | — | — | — | — | — | — | — | 9:19 | — | — | — | — | — | 9:21 |
— | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | |
Temp °C | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 14 | 15 | 16 | 16 | 16 | 15 | 13 | 13 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 |
5 | 5 | 6 | 6 | 5 | 6 | 8 | 9 | 10 | 13 | 14 | 10 | 11 | 9 | 9 | 12 | 11 | 12 | 12 | 11 | 12 | 13 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | — | — | SW 8 | SW 8 | SW 8 | WSW 10 | W 15 | W 15 | W 15 | SW 7 | SW 7 | SW 15 | SW 15 | SW 9 | WSW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 |
 kJ | — | — | 70 | 184 | 75 | 22 | 4 | 4 | 4 | 118 | 91 | 8 | 8 | 196 | 65 | 177 | 157 | 157 | 151 | 145 | 138 | 115 | 77 | 74 |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 12 | — | — | — | — | — | — | W 15 | SW 15 | W 15 | W 15 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 48 | — | — | — | — | — | — | 4 | 8 | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 8 | SW 5 | SW 6 | SW 6 | SW 7 | SW 7 | — | — | SSW 8 | SSW 9 | — | SW 7 | — | — | — | — | — | — | — | — | — |
| kJ | 315 | 228 | 193 | 221 | 110 | 188 | 162 | 149 | 143 | — | — | 117 | 221 | — | 122 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 281 | 256 | 61 | 71 | 207 | 207 | 189 | 139 | 141 | 141 | 10 | 77 | 139 | 41 | 139 | 15 | 145 | 15 | 46 | 15 | 15 | 15 | 77 | 15 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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