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Porthtowan Surf Forecast
/ Cornwall (North) (60 surf breaks) /
Surf Forecasts:
Porthtowan surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 12 am Tuesday 19 May 2026 BSTForecast update in hr min s Forecast update imminent
Porthtowan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porthtowan sea temperature is
12.4° C
(Which is normal for this time of year)How big are the waves at Porthtowan today?
The current surf forecast for Porthtowan at 8AM is: 2.5m 8s primary swell from a Southwest direction and 0.1m 15s secondary swell from a West direction (forecast issued at 12:00am May 19). An open ocean swell of 0.1m 18s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 8ft (2.5m) | 8s |
| Afternoon (19 May) | 10ft (3.0m) | 8s |
| Evening (19 May) | 10ft (3.0m) | 9s |
Table - waves today at Porthtowan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Mon night. Very mild (max 17°C on Thu morning, min 12°C on Mon night). Winds decreasing (strong winds from the SSW on Mon night, light winds from the S by Wed night). | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | ||||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 9 | WSW 9 | WSW 16 | WSW 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | |
620 | 789 | 833 | 886 | 941 | 1151 | 1437 | 1770 | 6490 | 6331 | 5808 | 4769 | 3662 | 2884 | 2469 | 1756 | 1413 | 1190 | 1047 | 828 | 705 | 679 | 596 | 566 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | |
High Tide | 7:31AM6.47m | 7:53PM6.54m | 8:20AM6.16m | 8:44PM6.25m | 9:13AM5.76m | 9:39PM5.88m | ||||||||||||||||||
Low Tide | 1:31AM0.06m | 1:52PM0.29m | 2:21AM0.27m | 2:42PM0.58m | 3:16AM0.59m | 3:37PM0.93m | ||||||||||||||||||
 |  |  |  |  |  | | |  | | | |  | | |  | | | | | | | | | |
 | — | 5:28 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:06 | — | — | — | — | — | — | — | 9:07 | — | — | — | — | — | — | — | 9:07 | — |
1 | — | — | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 12 | 12 | 12 | 12 | 13 | 15 | 15 | 14 | 13 | 13 | 13 | 14 | 15 | 17 | 17 | 15 | 15 |
6 | 8 | 7 | 7 | 7 | 6 | 6 | 5 | 6 | 7 | 7 | 8 | 10 | 10 | 11 | 10 | 9 | 10 | 11 | 11 | 13 | 13 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | W 15 | W 15 | W 15 | W 14 | S 18 | WSW 16 | WSW 16 | WSW 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 |
 kJ | 100 | 20 | 4 | 17 | 17 | 16 | 6 | 480 | 733 | 6275 | 5808 | 4769 | 3662 | 2884 | 2469 | 1756 | 1413 | 1190 | 1047 | 828 | 705 | 679 | 596 | 566 |
Swell 2 Height (m) Direction Period (s) | W 16 | W 16 | S 19 | S 18 | S 18 | WSW 19 | — | W 13 | W 13 | — | S 7 | — | S 7 | — | — | — | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 5 | 5 | 7 | 6 | 6 | 34 | — | 31 | 130 | — | 86 | — | 52 | — | — | — | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | — | S 19 | — | — | — | SW 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 |
| kJ | — | 7 | — | — | — | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | SSW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 9 | WSW 9 | WSW 16 | W 14 | — | — | — | SSW 7 | — | — | — | — | — | — | — | — | — | SE 3 |
| kJ | 620 | 789 | 833 | 886 | 941 | 1151 | 1437 | 1770 | 6490 | 6331 | — | — | — | 125 | — | — | — | — | — | — | — | — | — | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 403 | 403 | 503 | 513 | 503 | 394 | 394 | 521 | 556 | 57 | 57 | 210 | 210 | 210 | 17 | 16 | 16 | 16 | 16 | 16 | 5 | 5 | 0 | 0 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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