data sydney 2023In Sydney, the month that experiences the least amount of daily sunshine is January. On average, there are only about 9.63 hours of sunlht per day during this time. The total number of sunlitThe current metro area population of Sydney in 2025 is 5,249,000, a 1.23% increase from 2025. The metro area population of Sydney in 2025 was 5,185,000, a 1.25% increase from 2025.