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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 - Peristeria Distance
Elefsina Airport 21.8 km
Elliniko Airport 30.8 km
Tatoi Palace 43.7 km
Tanagra Airport 45.2 km
El Venizelos 52.1 km
Athens Airport 55.9 km
Tripoli Airport 122.3 km
Skiathos 132.9 km
Lamia 152.0 km
Nea Anchialos Airport 155.1 km
Skyros Airport 159.3 km
Milos Airport 166.3 km
Kythira 170.6 km
Syros Airport 172.7 km
Kalamata 180.2 km
Paros Airport 206.5 km
Larissa National Airport 213.1 km
Mykonos 216.4 km
Methoni 222.7 km
Patras Araxos Airport 228.0 km
Naxos 228.3 km
Naxos Airport 228.5 km
Andravida 241.2 km
Chania Intl. Airport 250.8 km
Santorini 266.1 km
Thessaloniki Airport 274.7 km
Zakynthos Airport 286.0 km
Lemnos Airport 286.2 km
Chios Airport 302.1 km
Kozani 310.0 km
Preveza 317.1 km
Çeşme 320.0 km
Tympaki Airport 322.2 km
Heraklion Airport 322.7 km
Serres 325.2 km
Cephalonia Airport 329.3 km
Kavala/Chrisoupolis 340.2 km
Kastelli Airport 343.7 km
Ioannina 349.4 km
Gevgelija 351.1 km
Kastoria Airport 357.7 km
Mytilene 370.4 km
Sandanski 375.3 km
Florina 375.6 km
Leros 379.5 km
Samos Airport 385.8 km
Demir Kapija 386.3 km
Ayvalık 389.0 km
Berovo 398.0 km
Çanakkale 399.3 km
Sitia Airport 399.7 km
Bitola 400.0 km
Dikili 401.1 km
Çiğli Air Base 401.3 km
Alexandroupolis Airport 406.7 km
Korçë 410.7 km
Prilep 412.1 km
İzmir Adnan Menderes Airport 414.4 km
İzmir 417.4 km
Kos Airport 419.7 km
Štip 421.0 km
Kuşadası 423.0 km
Balıkesir Koca Seyit Airport 430.9 km
Gjirokastër 432.0 km
Corfu 432.3 km
Sarandë 436.0 km
Kardzhali 437.4 km
Ohrid Airport 442.6 km
Ohrid St. Paul AP 445.2 km
Manisa 449.5 km
Bodrum 451.3 km
Skopje-Petrovec 465.1 km
Milas- Bodrum Airport 473.9 km
Datça 484.2 km
Lazaropole 485.2 km
Karpathos 485.4 km
Aydın 489.8 km
Kuçovë 497.2 km
Pozharane 499.9 km
Akhisar 500.7 km
Elbasan 502.6 km
Edirne 515.7 km
Vlorë 516.3 km
Peshkopi 516.4 km
Balıkesir 526.7 km
Sazan 537.3 km
Yzberish 540.8 km
Tirana 542.2 km
Tekirdağ 552.5 km
Bandırma 558.9 km
Durrës 568.8 km
Kırklareli 572.1 km
Çorlu 594.5 km