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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 - Marathon Distance
Tatoi Palace 19.0 km
Athens Airport 22.0 km
El Venizelos 24.0 km
Elliniko Airport 36.1 km
Elefsina Airport 45.3 km
Tanagra Airport 49.4 km
Skyros Airport 102.0 km
Skiathos 116.6 km
Syros Airport 132.0 km
Milos Airport 158.8 km
Nea Anchialos Airport 168.8 km
Mykonos 171.9 km
Paros Airport 174.4 km
Tripoli Airport 183.7 km
Lamia 184.2 km
Naxos 190.7 km
Naxos Airport 191.3 km
Kythira 217.1 km
Larissa National Airport 228.4 km
Lemnos Airport 228.9 km
Santorini 240.8 km
Kalamata 242.2 km
Chios Airport 243.8 km
Çeşme 262.0 km
Thessaloniki Airport 265.3 km
Chania Intl. Airport 266.2 km
Patras Araxos Airport 282.0 km
Methoni 284.6 km
Kavala/Chrisoupolis 296.5 km
Andravida 297.8 km
Serres 300.2 km
Mytilene 309.1 km
Heraklion Airport 316.5 km
Tympaki Airport 326.3 km
Kozani 326.8 km
Ayvalık 327.3 km
Leros 331.8 km
Samos Airport 332.9 km
Kastelli Airport 336.3 km
Çanakkale 338.1 km
Dikili 340.0 km
Çiğli Air Base 342.6 km
Zakynthos Airport 343.9 km
Gevgelija 346.7 km
Alexandroupolis Airport 349.6 km
Sandanski 355.0 km
İzmir Adnan Menderes Airport 357.0 km
İzmir 359.2 km
Preveza 363.0 km
Kuşadası 368.5 km
Balıkesir Koca Seyit Airport 369.1 km
Kos Airport 375.0 km
Kastoria Airport 379.4 km
Sitia Airport 380.7 km
Cephalonia Airport 384.1 km
Demir Kapija 384.3 km
Berovo 384.4 km
Ioannina 385.2 km
Kardzhali 387.6 km
Manisa 390.6 km
Florina 392.1 km
Bodrum 403.1 km
Musala 412.9 km
Plovdiv 413.7 km
Bitola 414.0 km
Štip 417.9 km
Prilep 420.9 km
Milas- Bodrum Airport 423.8 km
Aydın 435.2 km
Korçë 435.9 km
Datça 438.5 km
Akhisar 440.9 km
Kriva Palanka 451.9 km
Karpathos 452.6 km
Edirne 458.4 km
Ohrid Airport 462.4 km
Sofia 463.1 km
Ohrid St. Paul AP 465.0 km
Balıkesir 465.3 km
Gjirokastër 467.7 km
Skopje-Petrovec 467.9 km
Corfu 473.8 km
Sarandë 474.6 km
Mourgash 478.0 km
Tekirdağ 491.2 km
Bandırma 496.9 km
Lazaropole 502.2 km
Vranje 504.6 km
Pozharane 512.6 km
Kırklareli 512.8 km
Tetovo 517.3 km
Sliven 525.9 km
Kuçovë 527.4 km
Elbasan 527.8 km
Çorlu 533.0 km
Peshkopi 534.6 km
Leskovac 543.1 km
Vlorë 551.9 km
Pristina Airport 559.2 km
Kukës 561.1 km