Ch. Lightship wave buoy monthly averages for 2017 last observation shown Data available: to
Average Wave Height
4 ft
0.3 — 7.9 ft
Average Wave period
7 secs
4 — 15 secs
Average Water temperature
13 °C
9.8 — 18.4 °C
Average Wind
W, 19 mph
2 — 45 mph
Chart showing grouped wave observations for Ch. Lightship. Use the table on this page for a text version of the same measurements.
About Ch. Lightship wave buoy
Channel Lightship (WMO 62103) is a long‑running offshore observation station in the English Channel (49.9170°N, 2.8830°W). It is positioned to monitor conditions on a major shipping route and to capture swell and wind sea entering the Channel. It reports directional wave statistics (height/period/direction) and standard meteorology (wind, pressure, air/sea temperature) for forecasts.
| Month | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 4 | 8 | - | 20 | 11.0 | |
| 5 | 8 | - | 22 | 10.2 | |
| 5 | 8 | - | 21 | 10.3 | |
| 2 | 7 | WNW | 15 | 11.1 | |
| 3 | 8 | SE | 17 | 12.0 | |
| 3 | 8 | WSW | 16 | 14.2 | |
| 3 | 7 | W | 17 | 15.7 | |
| 3 | 7 | W | 16 | 16.3 | |
| 4 | 7 | W | 20 | 16.3 | |
| 4 | 8 | WSW | 19 | 15.7 | |
| 4 | 7 | WNW | 22 | 14.3 | |
| 4 | 7 | WNW | 21 | 12.2 |