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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.


Estações Meteorológicas Próximas - Keratea Distância
El Venizelos 13.1 km
Atenas Aeroporto 13.7 km
Elliniko Airport 28.4 km
Palácio de Tatoi 37.5 km
Elêusis Aeroporto 53.8 km
Tânagra Aeroporto 71.4 km
Siro Aeroporto 115.1 km
Milos Aeroporto 125.7 km
Esquiro Aeroporto 131.7 km
Escíato 150.2 km
Paros Aeroporto 151.7 km
Míconos 158.4 km
Naxos 171.8 km
Naxos Aeroporto 172.1 km
Trípoli Aeroporto 176.5 km
Citera 187.5 km
Nea Anchialos Airport 195.1 km
Lâmia 202.9 km
Santorini 215.0 km
Calamata 229.7 km
Chania Intl. Airport 230.6 km
Quios Aeroporto 247.1 km
Larissa National Airport 254.9 km
Lemnos Aeroporto 256.5 km
Çeşme 264.6 km
Modon 271.1 km
Heraclião Aeroporto 284.1 km
Patras Araxos Airport 286.1 km
Tympaki Airport 291.8 km
Aeroporto de Salonica-Macedónia 298.9 km
Andravida 298.9 km
Castéli Aeroporto 304.2 km
Mitilene 319.7 km
Leros 321.4 km
Samos Aeroporto 328.0 km
Kavala/Chrisoupolis 330.6 km
Serres 335.8 km
Ayvalık 339.6 km
Zacinto Aeroporto 343.3 km
Çiğli Air Base 346.3 km
Dikili 349.5 km
Siteía Aeroporto 352.7 km
Cozani 353.3 km
Aeroporto de Esmirna-Adnan Menderes 358.2 km
Çanakkale 358.6 km
Esmirna 361.9 km
Cós Aeroporto 362.0 km
Kuşadası 365.6 km
Preveza 374.3 km
Alexandrópolis Aeroporto 376.7 km
Gevgelija 379.6 km
Balıkesir Koca Seyit Airport 382.3 km
Cefalônia Aeroporto 387.3 km
Sandanski 390.3 km
Bodrum 393.2 km
Manisa 394.5 km
Janina 403.1 km
Castória Aeroporto 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
Cárpatos 431.4 km
Aidim 432.3 km
Bitola 441.8 km
Akhisar 446.5 km
Prilepo 450.4 km
Štip 450.6 km
Korçë 459.3 km
Baliquesir 475.8 km
Edirne 485.0 km
Gjirokastër 485.8 km
Ocrida Aeroporto 488.1 km
Corfu 488.3 km
Ohrid St. Paul Airport 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
Elbasani 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