World

South America



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 - Rio De Janeiro-marambaia Distance
Santa Cruz 16.3 km
Rio de Janeiro 20.6 km
Jacarepaguá 26.5 km
Afonsos Air Force Base Airport 27.8 km
Galeão Air Force Base Airport 43.3 km
Rio de Janeiro Airport 49.7 km
IlhaRasa 50.1 km
Xerém 52.9 km
Xerém 52.9 km
Valenca 56.8 km
Resende 105.5 km
Resende 106.6 km
Juiz de Fora Airport 107.3 km
Nova Friburgo 118.1 km
Paraty 126.2 km
Barbacena 147.1 km
Barbacena 148.7 km
Passa Quatro 160.3 km
Cordeiro 160.3 km
São Pedro da Aldeia Airport 168.9 km
Cabo Frio Airport 170.2 km
São João del-Rei 171.9 km
Arraial do Cabo 175.8 km
Guaratinguetá 179.8 km
Ouro Branco 201.5 km
Viçosa 202.4 km
Sao Luis Do Paraitinga 202.8 km
Macaé 206.5 km
Muriaé 208.9 km
Lavras 212.7 km
Taubaté 213.8 km
Cambuci 218.3 km
Taubaté Airport 218.9 km
Campos do Jordão 224.3 km
Itaperuna 243.7 km
Ibirité 246.8 km
São José dos Campos 252.7 km
Belo Horizonte Intl. Airport 253.3 km
Carlos Prates Airport 256.1 km
Pampulha 257.7 km
Belo Horizonte Airport 260.1 km
Florestal 269.2 km
Monte Verde 272.4 km
Campos dos Goytacazes 274.0 km
Campos dos Goytacazes 274.0 km
Lagoa Santa Airport 274.4 km
Manhuaçu 276.6 km
Belo Horizonte (Confins) 278.9 km
Formiga 291.5 km
Sao Tome 295.5 km
Alegre 301.3 km
Timóteo 301.5 km
Santos Airport 308.5 km
Caratinga 310.4 km
Caratinga 315.6 km
Vale do Aço Regional Airport 316.4 km
Guarulhos Airport 320.8 km
Caldas 322.3 km
Presidente Kennedy 327.1 km
Sao Paulo-mirante De Santana 338.0 km
Marte Civ / Mil 340.1 km
Sao Paulo AP 342.4 km
Poços de Caldas 343.7 km
Dores do Indaiá 359.5 km
Alfredo Chaves 375.3 km
Passos 383.2 km
Campinas/Viracopos AP 393.3 km
Casa Branca 399.4 km
Plataforma P25 Airport 417.4 km
Pirassununga 424.0 km
Vitória 429.8 km
Piracicaba 430.1 km
Vitoria/Goiabeiras AP 435.2 km
Sorocaba 444.6 km
Iguape 457.1 km
Araxá 459.0 km
Araxá 460.5 km
Franca 462.9 km
Franca 469.1 km
São Carlos Airport 483.5 km
São Carlos 484.0 km
Leite Lopes Airport 487.9 km
Ituverava 509.6 km
Uberaba 548.1 km