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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.


Stations météo à proximité - Calitzdorp Distance
Prince Albert 42.5 km
Ladismith 47.0 km
Riversdale 87.1 km
Laingsburg 92.9 km
Mossel Bay Aéroport 97.6 km
George (Aéroport) 101.7 km
Stilbaai 107.2 km
Beaufort West 143.7 km
Fraserburg Aéroport 152.9 km
Sutherland 153.6 km
Knysna 170.3 km
Plettenberg Bay 197.2 km
Willowmore 202.5 km
Robertson 203.2 km
Riviersonderend 213.7 km
Struisbaai 232.6 km
Cap des Aiguilles 239.1 km
Joubertina 247.4 km
Worcester 248.0 km
Worcester 248.0 km
Excelsior Ceres 254.6 km
Parc national de Tsitsikamma 255.6 km
Vyeboom 290.5 km
Calvinia Aéroport 292.1 km
Hermanus 295.6 km
Paarl 304.4 km
Vanwyksvlei 314.0 km
Strand 325.4 km
Malmesbury 330.4 km
Brandvlei 331.1 km
Clanwilliam 335.7 km
Graaff-Reinet 341.3 km
Aéroport international du Cap 348.6 km
Patensie 351.0 km
Air Force Base Ysterplaat 358.5 km
Nieuwoudtville 358.6 km
St Francis Bay 360.5 km
Baie de la Table 365.8 km
Cape Point 368.5 km
Molteno Reservior 368.9 km
Robben 371.8 km
De Aar 380.9 km
Slangkop 383.3 km
Langebaanweg (Aéroport) 393.9 km
Vredendal Aéroport 397.2 km
Geelbek 397.5 km
Lambert's Bay 398.8 km
Prieska 400.5 km
Langebaan 409.4 km
Uitenhage 418.7 km
Noupoort 427.5 km
Cape Columbine 430.6 km
Port Elizabeth Aéroport 442.1 km
Port of Ngqura 445.7 km
Somerset East 450.6 km
Parc national des Éléphants d'Addo 452.6 km
Cradock 455.1 km
Porterville 463.2 km
Pofadder 511.7 km
Barrage de Gariep 517.8 km
Fauresmith 547.6 km
Springbok Aéroport 573.5 km
Koingnaas 592.8 km