National Network of Regional Coastal Monitoring Programmes

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Note that these are real-time data and are not quality-controlled.

Second Severn Crossing

Tide Levels and Harmonics

 

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Latest Waves Data

Time (GMT)LatitudeLongitudeWave Height (m)Max Wave Height (m)Tpeak (s)Tz (s)Peak Direction (degrees)Spread (degrees)Sea Temp (°C)Energy Period (s)Wave Power (kW/m)
20-05-2026 10:00--0.480.883.62.7-----
Date Highest Hs 2026 Storm Alert Threshold
(0.25 yr Return Period Hs)
04-04 1.3m 0.74m
Time (GMT)LatitudeLongitudeWave Height (m)Max Wave Height (m)Tpeak (s)Tz (s)Peak Direction (degrees)Spread (degrees)Sea Temp (°C)Energy Period (s)Wave Power (kW/m)
20-05-2026 10:00--0.480.883.62.7-----
20-05-2026 09:30--0.520.823.12.5-----
20-05-2026 09:00--0.460.7532.2-----
20-05-2026 08:30--0.30.552.72-----
20-05-2026 08:00--0.290.452.52-----
20-05-2026 07:30--0.250.372.31.9-----
20-05-2026 07:00--0.210.352.71.9-----
20-05-2026 06:30--0.170.32.51.8-----
20-05-2026 06:00--0.180.342.71.9-----
20-05-2026 05:30--0.180.353.11.9-----
20-05-2026 05:00--0.170.333.11.9-----
20-05-2026 04:30--0.210.393.62.1-----
20-05-2026 04:00--0.170.2914.21.8-----
20-05-2026 03:30--0.170.3111.61.7-----
20-05-2026 03:00--0.190.339.11.9-----
20-05-2026 02:30--0.20.3214.21.8-----
20-05-2026 02:00--0.190.349.91.8-----
20-05-2026 01:30--0.160.286.71.7-----
20-05-2026 01:00--0.160.286.11.9-----
20-05-2026 00:30--0.190.325.81.9-----
20-05-2026 00:00--0.230.425.62-----
19-05-2026 23:30--0.260.425.32.2-----
19-05-2026 23:00--0.360.615.12.4-----
19-05-2026 22:30--0.470.944.72.8-----
19-05-2026 22:00--0.571.044.43.2-----
19-05-2026 21:30--0.460.913.52.5-----
19-05-2026 21:00--0.40.732.92.3-----
19-05-2026 20:30--0.320.522.82-----
19-05-2026 20:00--0.310.72.52.2-----
19-05-2026 19:30--0.250.412.11.8-----
19-05-2026 19:00--0.20.332.71.7-----
19-05-2026 18:30--0.180.354.61.7-----
19-05-2026 18:00--0.150.2614.21.7-----
19-05-2026 17:30--0.140.2314.21.7-----
19-05-2026 17:00--0.130.2414.21.7-----
19-05-2026 16:30--0.150.2914.21.8-----
19-05-2026 16:00--0.120.195.81.7-----
19-05-2026 15:30--0.130.1914.21.8-----
19-05-2026 15:00--0.150.265.81.8-----
19-05-2026 14:30--0.170.2781.9-----
19-05-2026 14:00--0.170.2811.61.8-----
19-05-2026 13:30--0.150.269.91.8-----
19-05-2026 13:00--0.110.1914.22-----
19-05-2026 12:30--0.10.1811.62-----
19-05-2026 12:00--0.110.1914.21.9-----
19-05-2026 11:30--0.140.224.91.9-----
19-05-2026 11:00--0.180.315.11.9-----
19-05-2026 10:30--0.260.444.72-----
19-05-2026 10:00--0.360.744.42.4-----