The National Centre for Meteorology and Seismology (NCMS) has urged motorists to exercise caution, reduce their speed and leave enough space between vehicles to ensure safe driving because of low visibility triggered by an on-going dust storm.
In a statement on Sunday, the NCMS said that the transitional period between winter and summer is characterised by differences in the speed of change in atmospheric pressure, which in turn leads to rapid changes in the weather.
There will be rapid changes in weather conditions, during which the length of day and night on March 21 will be equal.
"This marks the beginning of the transitional period known as the spring equinox, when the sun is vertical over the equator and begins its virtual movement towards the north as a result of the rotation of the earth around it. Thus, daylight time increases gradually," the statement read.