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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 Sunday 17 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 2AM is: 2.3m 12s primary swell from a West-northwest direction (forecast issued at 06:00pm May 17). An open ocean swell of 0.1m 12s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 7ft (2.1m) | 12s |
| Afternoon (18 May) | 5.5ft (1.7m) | 11s |
| Evening (18 May) | 3.5ft (1.1m) | 11s |
Table - waves today at Porthtowan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Mon night. Very mild (max 15°C on Wed morning, min 10°C on Sun night). Mainly strong winds. | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 |  |    |    |    | ||||||||||||||||||||
WNW 13 | W 12 | WNW 12 | WNW 12 | WNW 12 | W 12 | W 12 | W 11 | W 11 | WNW 11 | WNW 11 | SW 7 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 10 | W 14 | WSW 14 | W 14 | W 13 | |
1344 | 1356 | 1510 | 1461 | 1390 | 1342 | 1154 | 843 | 595 | 400 | 286 | 393 | 512 | 699 | 840 | 943 | 1055 | 1324 | 1741 | 2749 | 7095 | 6709 | 5077 | 3833 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 6:20PM6.70m | 6:43AM6.64m | 7:06PM6.70m | 7:31AM6.47m | 7:53PM6.54m | 8:20AM6.16m | ||||||||||||||||||
Low Tide | 00:42AM0.00m | 1:04PM0.10m | 1:31AM0.06m | 1:52PM0.29m | 2:21AM0.27m | |||||||||||||||||||
 |  |  |  | | | | | | | | |  | |  |  |  | | | | | | | | |
 | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:28 | — | — | — |
 | — | 9:02 | — | — | — | — | — | — | — | 9:04 | — | — | — | — | — | — | — | 9:06 | — | — | — | — | — | 9:07 |
1 | — | 1 | — | — | — | 1 | 1 | 1 | 2 | 2 | 3 | — | — | 1 | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 12 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 15 |
5 | 5 | 3 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 7 | 7 | 7 | 5 | 5 | 6 | 7 | 6 | 6 | 8 | 9 | 10 | |
Swell 1 Height (m) Direction Period (s) | S 12 | SW 12 | S 12 | S 12 | S 12 | S 14 | W 12 | W 11 | W 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | W 15 | S 18 | W 15 | W 14 | — | WNW 13 | SW 17 | — | WSW 14 | W 14 | W 13 |
 kJ | 3 | 6 | 3 | 3 | 3 | 4 | 1154 | 843 | 595 | 400 | 286 | 100 | 38 | 4 | 6 | 17 | 16 | — | 35 | 11 | — | 6709 | 5077 | 3833 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | S 14 | S 14 | S 14 | S 20 | S 20 | WSW 6 | — | W 16 | SW 19 | S 19 | S 13 | S 18 | W 19 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 4 | 4 | 4 | 8 | 7 | 11 | — | 5 | 14 | 7 | 3 | 6 | 7 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 19 | — | W 16 | W 16 | — | — | S 13 | SW 18 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 7 | — | 5 | 5 | — | — | 3 | 12 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 13 | W 12 | WNW 12 | WNW 12 | WNW 12 | W 12 | — | — | SSW 4 | SSW 5 | SSW 6 | SW 7 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 10 | W 14 | W 14 | — | SSW 7 |
| kJ | 1344 | 1356 | 1510 | 1461 | 1390 | 1342 | — | — | 19 | 70 | 194 | 393 | 512 | 699 | 840 | 943 | 1055 | 1324 | 1741 | 2749 | 7095 | 6070 | — | 108 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 527 | 505 | 250 | 250 | 208 | 57 | 19 | 19 | 42 | 208 | 272 | 403 | 394 | 102 | 511 | 394 | 503 | 401 | 521 | 394 | 556 | 415 | 210 | 210 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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