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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.


Estaciones meteorológicas cercanas - Graaff-Reinet Distancia
Graaff-Reinet 0.0 km
Noupoort 112.0 km
Cradock 118.8 km
Somerset East 155.8 km
Willowmore 160.6 km
Patensie 161.2 km
De Aar 168.8 km
Uitenhage 180.5 km
Joubertina 182.4 km
Parque nacional de los Elefantes de Addo 183.0 km
Tsitsikamma National Park 199.7 km
Gariep Dam 200.6 km
Port of Ngqura 204.2 km
St Francis Bay 204.7 km
Puerto Elizabeth Aeropuerto 215.5 km
Beaufort West 223.2 km
Plettenberg Bay 235.8 km
Fort Beaufort 239.2 km
Grahamstown 242.8 km
Knysna 249.3 km
Queenstown 259.6 km
Fauresmith 260.0 km
Queenstown 261.3 km
Jamestown 273.0 km
Port Alfred Aeropuerto 293.1 km
Aliwal North aeropuerto 295.3 km
Prince Albert 299.4 km
George aeropuerto 304.3 km
Bhisho 312.2 km
Döhne 326.2 km
Prieska 328.1 km
Mosselbaai Aeropuerto 335.3 km
Fraserburg aeropuerto 338.9 km
Kimberley Aeropuerto 344.8 km
Vanwyksvlei 358.3 km
Bloemfontein 359.4 km
Barkly East 362.4 km
Bloemfontein Aeropuerto 367.5 km
Wepener 370.8 km
King Phalo aeropuerto 374.9 km
Elliot 377.4 km
Glen College 382.3 km
Ladismith 388.1 km
Riversdale 415.0 km
Stilbaai 416.6 km
Laingsburg 422.7 km
Postmasburg 427.0 km
Maseru-Mia 432.6 km
Sutherland 432.7 km
Mthatha 463.0 km
Brandvlei 486.5 km
Ficksburg 503.1 km
Ficksburg 503.4 km
Upington Aeropuerto 532.9 km
Struisbaai 566.3 km
Cabo de las Agujas 572.9 km
Bethlehem aeropuerto 576.4 km
Cataratas Augrabies 596.7 km
Royal Natal Nat. Park 601.7 km