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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 - Isthmia Distance
Elefsina Airport 63.1 km
Tanagra Airport 72.1 km
Tripoli Airport 77.5 km
Elliniko Airport 80.9 km
Tatoi Palace 89.4 km
El Venizelos 102.0 km
Athens Airport 105.8 km
Lamia 116.9 km
Nea Anchialos Airport 135.6 km
Kalamata 140.1 km
Skiathos 141.0 km
Kythira 167.4 km
Patras Araxos Airport 177.9 km
Methoni 182.7 km
Larissa National Airport 187.9 km
Andravida 191.1 km
Skyros Airport 196.8 km
Milos Airport 206.2 km
Syros Airport 222.2 km
Zakynthos Airport 236.3 km
Paros Airport 253.9 km
Mykonos 266.2 km
Thessaloniki Airport 266.5 km
Preveza 269.2 km
Chania Intl. Airport 273.8 km
Naxos 276.8 km
Naxos Airport 276.9 km
Cephalonia Airport 279.1 km
Kozani 280.2 km
Ioannina 306.4 km
Santorini 310.7 km
Lemnos Airport 321.1 km
Kastoria Airport 323.6 km
Serres 328.2 km
Gevgelija 336.6 km
Florina 345.0 km
Tympaki Airport 351.1 km
Chios Airport 351.3 km
Heraklion Airport 357.7 km
Kavala/Chrisoupolis 359.5 km
Demir Kapija 369.2 km
Çeşme 369.4 km
Bitola 370.6 km
Sandanski 373.1 km
Korçë 373.6 km
Kastelli Airport 379.0 km
Corfu 385.8 km
Prilep 386.4 km
Gjirokastër 388.5 km
Berovo 389.9 km
Sarandë 391.0 km
Štip 404.3 km
Ohrid Airport 408.8 km
Ohrid St. Paul AP 411.3 km
Mytilene 417.3 km
Leros 429.4 km
Ayvalık 434.9 km
Samos Airport 436.0 km
Çanakkale 439.9 km
Alexandroupolis Airport 440.2 km
Sitia Airport 440.4 km
Skopje-Petrovec 443.3 km
Dikili 448.3 km
Çiğli Air Base 450.4 km
Lazaropole 452.9 km
Kuçovë 456.4 km
Kardzhali 461.6 km
İzmir Adnan Menderes Airport 464.0 km
Elbasan 464.9 km
İzmir 466.7 km
Kos Airport 469.1 km
Pozharane 470.5 km
Vlorë 472.5 km
Kuşadası 473.1 km
Balıkesir Koca Seyit Airport 476.4 km
Peshkopi 483.0 km
Sazan 493.1 km
Manisa 498.5 km
Bodrum 501.2 km
Yzberish 502.2 km
Tirana 503.6 km
Milas- Bodrum Airport 524.0 km
Durrës 528.6 km
Karpathos 531.3 km
Datça 533.7 km
Aydın 539.9 km
Edirne 548.8 km
Akhisar 549.2 km
Balıkesir 573.3 km
Tekirdağ 593.1 km
Bandırma 603.1 km
Kırklareli 608.2 km
Çorlu 635.6 km