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.

St Mary's Sound

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)
27-09-2022 00:3049.89175-6.312630.771.197.143535815.15.71.66
Date Highest Hs 2022 Storm Alert Threshold
(0.25 yr Return Period Hs)
Swell Alert Threshold
(0.25 yr Return Period Te)
18-02 5m 4.47m 10.88s
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)
27-09-2022 00:3049.89175-6.312630.771.197.143535815.15.71.66
27-09-2022 00:0049.89175-6.313580.761.157.13.834658155.31.51
26-09-2022 23:3049.89167-6.313580.861.327.14.1175515.15.52.01
26-09-2022 23:0049.89159-6.313410.841.287.14.3425815.25.92.03
26-09-2022 22:3049.89178-6.313530.921.56.34.5524715.35.92.45
26-09-2022 22:0049.89187-6.3137511.436.74.7584315.462.95
26-09-2022 21:3049.89181-6.313861.041.556.74.9614615.66.33.34
26-09-2022 21:0049.89181-6.313920.931.337.14.6725015.86.12.61
26-09-2022 20:3049.89180-6.314010.961.757.14.728541662.71
26-09-2022 20:0049.89161-6.314090.851.456.74.4185916.162.12
26-09-2022 19:3049.89166-6.313880.831.467.74.13406015.45.81.97
26-09-2022 19:0049.89144-6.313830.831.378.34.43075615.46.32.13
26-09-2022 18:3049.89147-6.313360.811.228.34.23323815.56.11.98
26-09-2022 18:0049.89136-6.312500.631.078.34.53185515.66.51.27
26-09-2022 17:3049.89175-6.311820.751.037.74.43214414.96.41.76
26-09-2022 17:0049.89210-6.311390.851.377.74.43193015.66.42.28
26-09-2022 16:3049.89250-6.311470.871.257.743294214.85.92.2
26-09-2022 16:0049.89261-6.311500.931.356.74.33354114.86.12.57
26-09-2022 15:3049.89268-6.311540.951.397.14.33406214.862.67
26-09-2022 15:0049.89272-6.311580.971.477.14.4165314.86.12.83
26-09-2022 14:3049.89270-6.311521.021.577.74.6244614.76.13.14
26-09-2022 14:0049.89269-6.311431.041.715.94.6494014.763.21
26-09-2022 13:3049.89280-6.311560.921.326.74.2455014.75.72.35
26-09-2022 13:0049.89277-6.311600.871.185.94255314.75.42
26-09-2022 12:3049.89280-6.311710.871.236.33.8443914.85.11.88
26-09-2022 12:0049.89275-6.311730.791.124.83.6275914.84.71.43
26-09-2022 11:3049.89280-6.311880.781.215.93.6135714.94.81.42
26-09-2022 11:0049.89283-6.312250.851.286.33.93495314.85.21.84
26-09-2022 10:3049.89217-6.313280.981.638.343434414.85.52.61
26-09-2022 10:0049.89192-6.313861.041.488.34.33115814.95.62.99
26-09-2022 09:3049.89182-6.313881.111.688.34.32625614.95.93.57
26-09-2022 09:0049.89186-6.313981.071.677.74.624847156.23.5
26-09-2022 08:3049.89177-6.314031.141.97.74.82635315.36.33.99
26-09-2022 08:0049.89160-6.313921.011.58.34.7314491563.02
26-09-2022 07:3049.89160-6.313830.991.57.74.72984214.56.12.96
26-09-2022 07:0049.89154-6.313831.472.917.75.32674014.66.66.99
26-09-2022 06:3049.89119-6.313171.322.547.74.82574514.76.25.33
26-09-2022 06:0049.89141-6.313281.091.597.74.42865214.85.83.39
26-09-2022 05:3049.89132-6.312270.941.457.14.32874814.75.72.49
26-09-2022 05:0049.89226-6.311500.831.337.13.83154914.85.31.8
26-09-2022 04:3049.89269-6.311600.91.456.73.93223914.95.32.11
26-09-2022 04:0049.89269-6.311560.861.366.33.93232615.35.11.86
26-09-2022 03:3049.89271-6.311470.871.36.743292115.25.31.98
26-09-2022 03:0049.89276-6.311470.791.285.93.73282815.24.91.51
26-09-2022 02:3049.89265-6.311470.691.145.93.73322814.54.91.15
26-09-2022 02:0049.89268-6.311430.631.015.93.63223614.64.90.95
26-09-2022 01:3049.89267-6.311470.590.9153.42866614.54.70.8
26-09-2022 01:0049.89277-6.311580.510.7453.41697814.64.70.6
26-09-2022 00:3049.89276-6.311580.520.94.83.4256514.64.50.59
26-09-2022 00:0049.89280-6.311730.550.934.83.73545714.64.60.68