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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 - Keratsini Distance
Elefsina Airport 12.6 km
Elliniko Airport 14.3 km
Tatoi Palace 23.6 km
El Venizelos 33.8 km
Tanagra Airport 36.9 km
Athens Airport 37.3 km
Skiathos 124.8 km
Skyros Airport 140.1 km
Tripoli Airport 142.5 km
Syros Airport 157.4 km
Nea Anchialos Airport 157.5 km
Milos Airport 160.8 km
Lamia 161.1 km
Kythira 184.6 km
Paros Airport 193.9 km
Mykonos 200.4 km
Kalamata 200.6 km
Naxos 214.3 km
Naxos Airport 214.6 km
Larissa National Airport 216.8 km
Methoni 243.1 km
Patras Araxos Airport 245.6 km
Chania Intl. Airport 253.8 km
Santorini 256.0 km
Andravida 259.8 km
Lemnos Airport 267.3 km
Thessaloniki Airport 270.6 km
Chios Airport 282.6 km
Çeşme 300.6 km
Zakynthos Airport 305.1 km
Kozani 314.7 km
Serres 316.3 km
Heraklion Airport 318.9 km
Tympaki Airport 321.8 km
Kavala/Chrisoupolis 325.5 km
Preveza 332.0 km
Kastelli Airport 339.5 km
Cephalonia Airport 347.3 km
Gevgelija 348.9 km
Mytilene 350.1 km
Ioannina 360.9 km
Leros 363.0 km
Kastoria Airport 364.3 km
Samos Airport 367.9 km
Sandanski 368.0 km
Ayvalık 368.6 km
Çanakkale 379.2 km
Florina 380.5 km
Dikili 380.8 km
Çiğli Air Base 381.7 km
Demir Kapija 385.0 km
Alexandroupolis Airport 387.9 km
Sitia Airport 392.0 km
Berovo 393.0 km
İzmir Adnan Menderes Airport 395.2 km
İzmir 398.0 km
Bitola 404.1 km
Kos Airport 404.1 km
Kuşadası 404.6 km
Balıkesir Koca Seyit Airport 410.5 km
Prilep 414.5 km
Korçë 418.6 km
Štip 419.5 km
Kardzhali 420.9 km
Manisa 429.9 km
Bodrum 434.7 km
Gjirokastër 443.5 km
Corfu 445.8 km
Sarandë 448.5 km
Ohrid Airport 448.8 km
Ohrid St. Paul AP 451.3 km
Milas- Bodrum Airport 456.8 km
Skopje-Petrovec 465.6 km
Datça 468.4 km
Aydın 471.4 km
Karpathos 473.5 km
Akhisar 480.8 km
Lazaropole 490.5 km
Edirne 496.9 km
Pozharane 503.7 km
Balıkesir 506.4 km
Kuçovë 506.9 km
Elbasan 510.7 km
Peshkopi 522.1 km
Vlorë 527.9 km
Tekirdağ 532.3 km
Bandırma 538.4 km
Sazan 549.2 km
Yzberish 549.3 km
Tirana 550.7 km
Kırklareli 552.6 km
Çorlu 574.3 km
Durrës 578.1 km