Perth's Longest Day: Summer Solstice Sunlight Hours in Western Australia

Perth (Southern Hemisphere) experiences its longest daylight on the December solstice (usually December 21 or 22).

On that day, Perth receives approximately 15 hours 20 minutes of daylight (sunrise ~5:00 AM, sunset ~7:20 PM local time).

The exact date varies slightly yearly due to leap cycles. After the solstice, days gradually shorten until the June solstice (shortest day).