The Hydrological Observatory of Athens

Hydrological information provided from this site is a service of the Hydrological Observatory of Athens, operated by the National Technical University of Athens. It is an evolution from the hydrometeorological network METEONET and provides access to a single database, which will gradually incorporate further stations and hydrological measurements, including the ones of the Experimental Basin of Athens - XBasin. Here you will be able to locate hydrometeorological stations on the map, download historic time series and use advanced applications for a statistical analysis of selected hydrological data.

Latest Measurements

Penteli 24 November 2018   14:30
Temperature9.4 °C
9.7 °C
9.3 °C
Humidity83 %
Rainfall0.0 mm (0.0 mm/2hr)
0.0 mm (0.0 mm/2hr)
Solar radiation601 W/m2
Sunshine duration10 min (120 min/2hr)
Wind speed3.0 m/s
Wind gust7.5 m/s
Wind direction85 deg
Barometric pressure 
Net radiation93 W/m2


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Last Rainfall Event

Greater Athens Area   24 February 2018

Start of event: 24 February 2018 08:50

End of event: 24 February 2018 09:20

Download report (in Greek)

Total rainfall per station

  • Ano GlyfadaNone
  • Zografou (NTUA)5.8
  • PsyttaliaNone
  • PikermiNone
  • PenteliNone
  • MenidiNone
  • Mandra0.8
  • IlioupoliNone
  • GalatsiNone
  • Ano LiosiaNone
  • Agios KosmasNone

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Recent weather highlights for Zografou (NTUA) station

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The Network

The network map

NTUA's hydrological monitoring network is operational since 2005. It consists of more than 10 stations located in the greater Athens area, measuring environmental parameters of hydrometeorological interest, such as rainfall, temperature, relative humidity, evaporation, air pressure, solar radiation, sunshine duration, wind direction and velocity.


The network has been developed and maintained by the Centre for Hydrology and Informatics, led by Prof. Maria Mimikou and is supported by the Computer Center of the National Technical University of Athens. The locations of the stations were selected to adequately cover the study area and meet strict monitoring criteria set by WMO, as well as criteria regarding ground elevation, security and ease of access. Each station is equipped with a data logger, which records, in 10 min intervals, the measurements of all sensors installed in the specific station and, by means of mobile telephony, transmits the data to a central, OGC compliant, database.


Since October 2016, the network is a founding member of LTER-Greece (Greek Long-Term Ecological Research Network) as a LTSER platform. LTER-Greece is an approved ILTER member.


Read more about the network