The South African Weather Service maintains a network of various types of weather stations throughout South Africa. The country is divided into different areas and a Weather Office is responsible for maintaining the weather stations in its area of responsibility.
Types of station
Visual observations are done which include cloud identification, visibility, dew, frost and present- and past weather conditions. Synoptic reports are sent after each observation. First order stations do three-hourly observations from 05:00 to 20:00.
Limited visual observations are done and no synoptic reports.
Only maximum and minimum temperatures and rainfall are done. Some observers at third order stations undertake to submit further elements voluntarily.
These stations are equipped with a 127 mm rain gauge only. Rainfall is measured daily at 08:00.
The sea-surface temperatures are measured daily and the data is processed by selected Weather Offices.
Observation times (SAST)
14:00 - only first and second order stations
20:00 - only first order stations