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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.


Estaciones meteorológicas cercanas - Keratea Distancia
El Venizelos 13.1 km
Atenas Aeropuerto 13.7 km
Elliniko aeropuerto 28.4 km
Tatoi 37.5 km
Eleusis Aeropuerto 53.8 km
Tanagra Aeropuerto 71.4 km
Siros Aeropuerto 115.1 km
Milo Aeropuerto 125.7 km
Esciros Aeropuerto 131.7 km
Scíathos 150.2 km
Paros Aeropuerto 151.7 km
Miconos 158.4 km
Naxos 171.8 km
Naxos Aeropuerto 172.1 km
Trípoli Aeropuerto 176.5 km
Citera 187.5 km
Nea Anjíalos Aeropuerto 195.1 km
Lamía 202.9 km
Santorini 215.0 km
Kalamata 229.7 km
La Canea aeropuerto 230.6 km
Isla de Quíos Aeropuerto 247.1 km
Nacional de Lárisa aeropuerto 254.9 km
Lemnos Aeropuerto 256.5 km
Çeşme 264.6 km
Modona 271.1 km
Heraclión Aeropuerto 284.1 km
Patras Araxos aeropuerto 286.1 km
Tympaki aeropuerto 291.8 km
Macedonia aeropuerto 298.9 km
Andravida 298.9 km
Kasteli Aeropuerto 304.2 km
Mitilene 319.7 km
Leros 321.4 km
Samos Aeropuerto 328.0 km
Kavala/Chrisoupolis 330.6 km
Serres 335.8 km
Ayvalık 339.6 km
Zacinto Aeropuerto 343.3 km
Çiğli Air Base 346.3 km
Dikili 349.5 km
Sitía Aeropuerto 352.7 km
Kozani 353.3 km
Esmirna-Adnan Menderes aeropuerto 358.2 km
Çanakkale 358.6 km
Esmirna 361.9 km
Cos Aeropuerto 362.0 km
Kuşadası 365.6 km
Préveza 374.3 km
Alejandrópolis Aeropuerto 376.7 km
Gevgelija 379.6 km
Balıkesir Koca Seyit aeropuerto 382.3 km
Cefalonia Aeropuerto 387.3 km
Sandanski 390.3 km
Bodrum 393.2 km
Manisa 394.5 km
Ioánina 403.1 km
Kastoriá Aeropuerto 404.2 km
Milas-Bodrum aeropuerto 415.8 km
Demir Kapija 416.7 km
Flórina 418.9 km
Berovo 419.0 km
Kardzhali 419.5 km
Datça 426.4 km
Kárpatos 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
Gjirokastra 485.8 km
Ohrid Aeropuerto 488.1 km
Corfú 488.3 km
Ohrid St. Paul aeropuerto 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
Isla de Sazan 591.5 km
Tirana 591.6 km
Durrës 619.5 km