National Network of Regional Coastal Monitoring Programmes

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Note that these are real-time data and are not quality-controlled. Long-range graphs are plotted from a randomised subsample of half-hourly data.

Second Severn Crossing

Tide Levels and Harmonics

  

Live water level data (OD) Data (GMT) (updated every 5 seconds)

This one-second stream of data to the website is experimental and is being developed in conjunction with Fugro GB Limited

Latest Wave Data

Latest Wave Data
Latitude-
Longitude-
Wave Height (m)0.11
Max Wave Height (m)0.22
Tpeak (s)-
Tz (s)1.9
Peak Direction (degrees)-
Spread (degrees)-
Sea Temp (°C)-
Energy Period (s)-
Wave Power (kW/m)-

Latest Tide Data

Latest Tide data
Date/Time (GMT)23-03-2025 15:10
Elevation6.54
Residual-0.84
Next HW01:21, 9.29
Next LW18:44, 3.96
Highest Date02-03-2025
Highest Value14.2m
Lowest Date02-03-2025
Lowest Value0.05m