Greenwich Lightship

NDBC station 62305 (Greenwich Lightship) is a moored standard meteorological station at 50.400°N 0.000°E, operated by UK Met Office. PierMonkey reads its observations straight from the NOAA National Data Buoy Center and republishes them free, with no account required to see current conditions.

It reports significant wave height, dominant and average wave period, wind speed, gusts and direction, air and sea-surface temperature, and barometric pressure; and full spectral wave-energy density, which separates overlapping swell trains by period and direction.

A 16-day wave and wind forecast from the NOAA GFS-Wave model is available for this location alongside the live readings, so you can see both what the buoy is measuring now and what is expected to arrive.