Surf forecast · United Kingdom · Cornwall
Surf forecast Porthleven today
Waves, swell and wind at Porthleven (Cornwall, United Kingdom) today and for the next 3 days, every 3 hours of daylight, with a plain verdict per day — flat, small, fun, good or big, offshore or onshore — and the best window to paddle out.
These numbers are more than 7 hours old, so they are hidden. Open the live waves map for the current sea. Open the waves map centred on Porthleven
Right now
Big onshore.
Porthleven surf forecast, next 3 days
- Flat
- Small
- Fun
- Good
- Big
Saturday 24 October
No daylight hours left today: see tomorrow.
Sunday 25 October
Big Best window 16:00–17:00: big, cross-shore.
| Time | Waves | Swell | Wind |
|---|---|---|---|
| 09:00 | 4.3 m · 9 s ↑W | 1.7 m · 9 s ↑SW | 29–53 km/h ↑WNW cross-shore |
| 12:00 | 3.9 m · 9 s ↑W | 1.7 m · 9 s ↑SW | 30–54 km/h ↑WNW cross-shore |
| 15:00 | 3.4 m · 9 s ↑W | 2.1 m · 10 s ↑WNW | 26–46 km/h ↑WNW cross-shore |
Monday 26 October
Big Best window 16:00–17:00: big, onshore.
| Time | Waves | Swell | Wind |
|---|---|---|---|
| 09:00 | 2.9 m · 7 s ↑SW | 1.0 m · 9 s ↑W | 35–63 km/h ↑SW onshore |
| 12:00 | 3.1 m · 8 s ↑SW | 0.9 m · 9 s ↑W | 34–62 km/h ↑SW onshore |
| 15:00 | 3.2 m · 8 s ↑SW | 1.6 m · 8 s ↑W | 37–68 km/h ↑SSW onshore |
Tuesday 27 October
Big Best window 16:00–17:00: big, cross-shore.
| Time | Waves | Swell | Wind |
|---|---|---|---|
| 09:00 | 4.4 m · 9 s ↑WSW | 1.8 m · 11 s ↑W | 36–55 km/h ↑W onshore |
| 12:00 | 4.4 m · 10 s ↑WSW | 1.9 m · 12 s ↑W | 42–66 km/h ↑W onshore |
| 15:00 | 4.2 m · 10 s ↑WSW | 3.1 m · 10 s ↑WSW | 38–60 km/h ↑W cross-shore |
Every 3 hours of daylight, local time. Waves = significant height of the whole sea, with the peak period; swell = the long-period part. Arrows point where the waves and the wind are going.
Forecast for Sat 20:00 local time · updated 2026-10-24 19:11 UTC
Waves map around Porthleven
Open the waves map centred on Porthleven
Live significant wave height from NOAA WaveWatch III, averaged over 2° cells: coarser than the forecast above, so near the coast it can differ from it.
More about Porthleven
Water temperature in Penzance · Tides in Penzance · Swell map · Wind map
LayEarth Pro
Pro adds GPS jamming, winds aloft, turbulence, 20 aurora cities and the evening-before pollen alerts for Europe — 9 USD/month.
Questions
- Is there surf at Porthleven today?
- Big: waves 4.8 m at 9 s from WSW, swell 1.4 m · 10 s W (Sat 20:00).
- Is the wind offshore at Porthleven?
- Wind 45 km/h from WSW: onshore for a beach facing SW.
- When is the best time to surf Porthleven today?
- No daylight hours are left today; the table shows the next days.
- How warm is the water at Porthleven?
- 14.7 °C
- Where do the numbers come from?
- The Open-Meteo Marine API (wave models of Météo-France, ECMWF and NOAA) for a point just off the beach, and the Open-Meteo forecast for the wind. A model at sea, not a surf report: sandbanks, reefs and tide shape the waves you actually get.
Nearby surf spots
Praa Sands 4 km · Gwithian 21 km · Porthtowan 27 km · Sennen Cove 28 km · Perranporth 34 km · Fistral Beach (Newquay) 43 km
How it is computed
Hourly Open-Meteo Marine forecast (wave height, peak period and direction, swell) at a point just off Porthleven, and the Open-Meteo wind at 10 m. Size: flat under 0.3 m, small under 0.8 m, fun under 1.5 m, good under 2.5 m (with a period of 8 s or more), big above. Wind: under 8 km/h light; otherwise offshore, cross-shore or onshore from its angle to the direction the beach faces. The best window is the 3 daylight hours with the best mix of size, period and wind. Rebuilt every 3 hours. Live map.