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What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Nearby Weather Stations - Keratea Distance
El Venizelos 13.1 km
Athens Airport 13.7 km
Elliniko Airport 28.4 km
Tatoi Palace 37.5 km
Elefsina Airport 53.8 km
Tanagra Airport 71.4 km
Syros Airport 115.1 km
Milos Airport 125.7 km
Skyros Airport 131.7 km
Skiathos 150.2 km
Paros Airport 151.7 km
Mykonos 158.4 km
Naxos 171.8 km
Naxos Airport 172.1 km
Tripoli Airport 176.5 km
Kythira 187.5 km
Nea Anchialos Airport 195.1 km
Lamia 202.9 km
Santorini 215.0 km
Kalamata 229.7 km
Chania Intl. Airport 230.6 km
Chios Airport 247.1 km
Larissa National Airport 254.9 km
Lemnos Airport 256.5 km
Çeşme 264.6 km
Methoni 271.1 km
Heraklion Airport 284.1 km
Patras Araxos Airport 286.1 km
Tympaki Airport 291.8 km
Thessaloniki Airport 298.9 km
Andravida 298.9 km
Kastelli Airport 304.2 km
Mytilene 319.7 km
Leros 321.4 km
Samos Airport 328.0 km
Kavala/Chrisoupolis 330.6 km
Serres 335.8 km
Ayvalık 339.6 km
Zakynthos Airport 343.3 km
Çiğli Air Base 346.3 km
Dikili 349.5 km
Sitia Airport 352.7 km
Kozani 353.3 km
İzmir Adnan Menderes Airport 358.2 km
Çanakkale 358.6 km
İzmir 361.9 km
Kos Airport 362.0 km
Kuşadası 365.6 km
Preveza 374.3 km
Alexandroupolis Airport 376.7 km
Gevgelija 379.6 km
Balıkesir Koca Seyit Airport 382.3 km
Cephalonia Airport 387.3 km
Sandanski 390.3 km
Bodrum 393.2 km
Manisa 394.5 km
Ioannina 403.1 km
Kastoria Airport 404.2 km
Milas- Bodrum Airport 415.8 km
Demir Kapija 416.7 km
Florina 418.9 km
Berovo 419.0 km
Kardzhali 419.5 km
Datça 426.4 km
Karpathos 431.4 km
Aydın 432.3 km
Bitola 441.8 km
Akhisar 446.5 km
Prilep 450.4 km
Štip 450.6 km
Korçë 459.3 km
Balıkesir 475.8 km
Edirne 485.0 km
Gjirokastër 485.8 km
Ohrid Airport 488.1 km
Corfu 488.3 km
Ohrid St. Paul AP 490.7 km
Sarandë 491.0 km
Skopje-Petrovec 499.3 km
Tekirdağ 510.8 km
Bandırma 511.5 km
Lazaropole 529.1 km
Kırklareli 536.7 km
Pozharane 541.0 km
Kuçovë 548.5 km
Elbasan 551.3 km
Çorlu 551.9 km
Peshkopi 561.1 km
Vlorë 570.2 km
Yzberish 590.1 km
Sazan 591.5 km
Tirana 591.6 km
Durrës 619.5 km