Marine Observations

Stat Number



Marine Institute

Key information

Real time and delayed mode (historical) readings from sensors and instruments managed by the Marine Institute. These include atmospheric pressure, wind speed and direction, air temperature, relative humidity, wave height, period, mean direction and other parameters, ultra high precision sea temperature at various depth levels, real time tidal water level and predicted level, numerical operational ocean modeling.


Readings from Marine Institute Research Vessels (RV Celtic Voyager, RV Celtic Explorer) operational weather buoys and research buoys, tide gauges, self contained ('Tidbit') temperature probes, wave rider buoys, ultra high precision temperature probes (climate baseline determination and monitoring).


All observations from sensors and instruments.


Varying from three minute intervals to one hour depending on sensor type

Reference period

Point in time and averaged readings

Start date

Varying by sensor type and location


Real-time readings


  • Location (databuoys)
    M1 53.1266N 11.2000W; M2 53.4800N 05.4250W; M3 51.2166N 10.5500W; M4 55.0000N 10.0000W; M5 51.6900N 06.7040W; M6 : 53.0605N 15.9300W.
  • Location (tide gauges)
    Aranmore; Ballyglass; Castletownbere; Dublin Port; Dundalk; Galway Port; Howth Harbour; Inishmore; Killybegs Port; Kish Bank Lighthouse; Malin Head; River Tolka; Ballycotton Harbour; River Liffey; Skerries Harbour; Sligo; Wexford.
  • Location (Tidbit probes)
    Ballinakill Harbour Fraochoilean; Bantry Bay (Gearhies_Cuan Baoi; Gearhies_Cuan Baoi_2; Palmers Point; Roancarraig); Bertraghboy Bay (Leaghan Pool; Salt Point; Salt Point 2; Sea_Lax); Clew Bay (Curraun; Inishoo Bay; Portlea).
  • Location (wave rider)
    Galway Bay; Belmullet.
  • Location (smart bay buoys)
    Mace Head, Galway; Mid-bay, Galway Bay.


Environment, Climate and Energy - Environment

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