Autumnal equinox marks official start of autumn across Northern Hemisphere

The autumnal equinox occurred Wednesday at 00:05 GMT, ending astronomical summer and beginning autumn in the Northern Hemisphere.

• The Jeddah Astronomical Society said the equinox occurred at 03:05 Mecca time (00:05 GMT) as the sun crossed the celestial equator southward.
• Egypt's General Authority of Meteorology forecast hot, humid conditions with highs of 33°C in Cairo and 40°C in southern Upper Egypt.
• The authority warned of fog on northern roads and weak chances of light rain on the northwestern coasts and northern delta.
• Winds of 30–35 km/h are expected over Greater Cairo and southern areas, possibly raising dust in the New Valley.