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Porthtowan Surf Forecast
/ Cornwall (North) (60 surf breaks) /
Surf Forecasts:
Porthtowan surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 6 pm 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
12.6° C
(Which is slightly warmer than usual)How big are the waves at Porthtowan today?
The current surf forecast for Porthtowan at 10PM is: 3.5m 9s primary swell from a West-southwest direction and 0.9m 16s secondary swell from a West-southwest direction (forecast issued at 06:00pm May 19). An open ocean swell of 0.1m 17s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| Afternoon (19 May) | 10ft (3.0m) | 9s |
| Evening (19 May) | 11ft (3.5m) | 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 2mm), mostly falling on Tue afternoon. Very mild (max 18°C on Fri morning, min 12°C on Tue night). Winds decreasing (strong winds from the SW on Tue afternoon, light winds from the SSE by Thu night). | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 9 | WSW 9 | WSW 9 | WSW 16 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | W 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | |
1235 | 1515 | 2067 | 6919 | 6652 | 6112 | 5077 | 3922 | 3082 | 2431 | 1756 | 1413 | 1190 | 1047 | 828 | 705 | 619 | 607 | 477 | 537 | 610 | 802 | 724 | 645 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | off | cross-off | cross-off | |
High Tide | 7:53PM6.54m | 8:20AM6.16m | 8:44PM6.25m | 9:13AM5.76m | 9:39PM5.88m | 10:12AM5.35m | ||||||||||||||||||
Low Tide | 1:52PM0.29m | 2:21AM0.27m | 2:42PM0.58m | 3:16AM0.59m | 3:37PM0.93m | 4:16AM0.95m | ||||||||||||||||||
 | |  | | |  |  | | | | | | |  | | | | |  | | | | | | |
 | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:24 | — | — | — |
 | — | 9:06 | — | — | — | — | — | — | — | 9:07 | — | — | — | — | — | — | — | 9:07 | — | — | — | — | — | 9:09 |
1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 13 | 12 | 12 | 12 | 12 | 13 | 14 | 15 | 14 | 13 | 14 | 14 | 14 | 15 | 16 | 17 | 15 | 15 | 16 | 14 | 14 | 16 | 18 |
7 | 6 | 5 | 6 | 7 | 7 | 8 | 9 | 11 | 10 | 10 | 10 | 11 | 11 | 11 | 12 | 13 | 11 | 11 | 13 | 12 | 13 | 15 | 17 | |
Swell 1 Height (m) Direction Period (s) | W 14 | WSW 18 | WSW 16 | WSW 16 | SSW 7 | W 14 | W 14 | W 13 | W 13 | W 13 | W 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | W 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 |
 kJ | 16 | 103 | 390 | 1644 | 164 | 6112 | 5077 | 3922 | 3082 | 2431 | 1756 | 1413 | 1190 | 1047 | 828 | 705 | 619 | 607 | 477 | 537 | 610 | 802 | 724 | 645 |
Swell 2 Height (m) Direction Period (s) | WSW 19 | S 18 | S 17 | W 13 | — | — | S 7 | — | — | — | — | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SW 14 | S 18 | S 6 | S 6 |
| kJ | 34 | 6 | 6 | 130 | — | — | 54 | — | — | — | — | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 21 | 8 | 6 | 36 | 38 |
Swell 3 Height (m) Direction Period (s) | SE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 18 | ESE 4 | S 18 | ESE 4 |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 7 | 6 | 3 |
Wind waves Height (m) Direction Period (s) | SW 9 | WSW 9 | WSW 9 | WSW 16 | W 14 | — | — | — | SSW 7 | — | — | — | — | — | — | — | — | SE 3 | SE 4 | SE 4 | ESE 4 | — | — | — |
| kJ | 1235 | 1515 | 2067 | 6919 | 6652 | — | — | — | 111 | — | — | — | — | — | — | — | — | 9 | 15 | 16 | 10 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 394 | 394 | 394 | 499 | 511 | 210 | 210 | 280 | 17 | 17 | 16 | 42 | 16 | 5 | 16 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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