Porthleven wave buoy monthly averages for 2025 last observation shown Data available: to
Average Wave Height
3 ft
0.6 — 7.9 ft
Average Wave period
5 secs
2 — 10 secs
Average Wave Direction
SW
Average Water temperature
13 °C
6.5 — 19.5 °C
Chart showing grouped wave observations for Porthleven. Use the table on this page for a text version of the same measurements.
About Porthleven wave buoy
Porthleven (CCO station 107) is an inshore coastal wave monitoring site at 50.0623°N, 5.3073°W. It’s part of the UK’s regional Coastal Monitoring / Channel Coastal Observatory network, placed to characterise nearshore wave climate for flood risk, erosion studies, coastal engineering and local forecasting. These stations commonly use a directional wave buoy (often a Datawell Directional WaveRider class) and report significant wave height, wave period (peak/mean) and wave direction; many also report sea temperature and, where fitted, nearby meteorology.
| Month | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 5 | 7 | SW | 10.6 | |
| 4 | 6 | SW | 9.9 | |
| 3 | 6 | SW | 10.3 | |
| 3 | 5 | SW | 11.5 | |
| 2 | 5 | SW | 14.1 | |
| 3 | 5 | SW | 15.2 | |
| 3 | 5 | SW | 16.1 | |
| 3 | 5 | SW | 17.5 | |
| 4 | 6 | SW | 15.8 | |
| 3 | 5 | SW | 14.6 | |
| 5 | 6 | SW | 13.3 | |
| 4 | 6 | SW | 11.7 |
Realtime data displayed on this page is from the
Regional Coastal Monitoring Programme
.