National Network of Regional Coastal Monitoring Programmes

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

St Mary's Sound

 

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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)
18-07-2025 19:0049.89266-6.311730.59-7.74.72626716.2--
Date Highest Hs 2025 Storm Alert Threshold
(0.25 yr Return Period Hs)
Swell Alert Threshold
(0.25 yr Return Period Te)
27-01 5.4m 4.43m 10.90s
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)
18-07-2025 19:0049.89266-6.311730.59-7.74.72626716.2--
18-07-2025 18:3049.89264-6.311710.49-84.42435716.1--
18-07-2025 18:0049.89260-6.311690.48-8.34.32126715.4--
18-07-2025 17:3049.89264-6.311820.49-6.94.42394916.2--
18-07-2025 17:0049.89276-6.312160.51-5.34.52366716.4--
18-07-2025 16:3049.89279-6.312680.53-84.82326716.4--
18-07-2025 16:0049.89255-6.313640.67-7.45.42325716.5--
18-07-2025 15:3049.89216-6.314050.78-85.62634916.5--
18-07-2025 15:0049.89189-6.314070.89-85.62324916.4--
18-07-2025 14:3049.89171-6.314030.97-8.362524116.6--
18-07-2025 14:0049.89159-6.314010.82-8.35.42385716.8--
18-07-2025 13:3049.89151-6.313960.92-8.762353415.8--
18-07-2025 13:0049.89166-6.314010.84-85.82264115.4--
18-07-2025 12:3049.89146-6.313810.94-8.362443415.8--
18-07-2025 12:0049.89127-6.313300.94-8.762462815.6--
18-07-2025 11:3049.89145-6.313660.89-7.75.72293815.8--
18-07-2025 11:0049.89122-6.312700.73-7.75.42243815.6--
18-07-2025 10:3049.89162-6.312330.65-85.22435715.7--
18-07-2025 10:0049.89207-6.311560.67-85.12556715.8--
18-07-2025 09:3049.89233-6.311540.69-852365316--
18-07-2025 09:0049.89253-6.311670.69-8.74.72775716.4--
18-07-2025 08:3049.89255-6.311690.65-8.74.72924916.4--
18-07-2025 08:0049.89260-6.311730.71-8.34.72634916.6--
18-07-2025 07:3049.89260-6.311750.73-84.62454516.6--
18-07-2025 07:0049.89267-6.311880.69-8.34.62494917--
18-07-2025 06:3049.89274-6.311990.67-7.44.42736217--
18-07-2025 06:0049.89276-6.312010.61-6.74.42494116.8--
18-07-2025 05:3049.89269-6.311880.53-8.34.32115715.3--
18-07-2025 05:0049.89271-6.311970.51-6.14.31695715.1--
18-07-2025 04:3049.89282-6.312830.55-8.74.32145715.2--
18-07-2025 04:0049.89249-6.313600.61-8.74.82275715.4--
18-07-2025 03:3049.89205-6.313980.75-8.75.32452315.4--
18-07-2025 03:0049.89178-6.314050.87-85.42354115.5--
18-07-2025 02:3049.89170-6.314030.94-7.75.52362815.5--
18-07-2025 02:0049.89162-6.314011.02-85.72354115.5--
18-07-2025 01:3049.89160-6.314031.02-85.62314115.5--
18-07-2025 01:0049.89152-6.314011.02-9.15.62294115.5--
18-07-2025 00:3049.89150-6.314010.99-8.75.42644115.2--
18-07-2025 00:0049.89150-6.313940.99-8.75.32504115.2--
17-07-2025 23:3049.89123-6.313261.15-9.15.72553415.4--
17-07-2025 23:0049.89142-6.313561.04-9.15.22554115.4--
17-07-2025 22:3049.89121-6.312780.89-8.74.72324915.5--
17-07-2025 22:0049.89130-6.312160.84-8.74.52485715.4--
17-07-2025 21:3049.89212-6.311600.82-8.74.32694915.6--
17-07-2025 21:0049.89235-6.311520.84-8.342505715.6--
17-07-2025 20:3049.89254-6.311620.92-7.44.13025715.6--
17-07-2025 20:0049.89264-6.311670.89-8.74.12644915.8--
17-07-2025 19:3049.89270-6.311770.78-83.92575715.8--
17-07-2025 19:0049.89274-6.311800.78-8.742764916--