Winter (6 December – 15 February)
Very cold especially during night or when the dry cold north westerly wind are very strong (maximum temperature is 13° centigrade and it may decrease to 3.3° centigrade) except for warm intervals resulting from the blowing of wet south easterly wind
Great decrease in temperature – clouds and rain – very cold North westerly Wind.
Spring (16 February – 20 May)
Temperature begins to increase apparently after 16 February after being stable on the winter averages and the severity of cold breaks. The hot south (Al-Suhily) wind blow during the period from 15 March – 10 April and it lasts for several days and the maximum temperature may reach 41° centigrade (13° centigrade above the average) which misleads summer but the moderate cold westerly wind blow in this time to reduce temperature notably
Summer (21 May – 4 November)
This period is predominated by hot ad dry north westerly wind (Semoom) and they may be continuous as they are not often interrupted by winds coming form other directions. These winds vary in their speed between strength and weakness. These winds become active in some periods which lead to the occurrence of strong dust storms where the visibility may decrease to few meters especially at noon
Great increase in humidity and temperature.
Transition period (21 May – 5 June)
Autumn (5 November – 5 December)
he hot season usually ends in 5 November as this date is preceded by wet and hot south easterly wind which changes afterwards to cold north westerly wind. It may be accompanied by thunder storms and the average maximum temperature ranges between 20° and 30° centigrade. It is noted that nights are usually cold while day times are warm.