Longest Day Of The Year Australia 2025 Date. During the december solstice the sun will appear at its highest and most in the sky. In other words, on june solstice it is summer time in the uk, the usa, canada, russia, india, and china and it is the longest day of the year while it is winter time in australia, argentina, chile,.

According to weatherzone, hobart will experience the longest day, with 15 hours and. In the northern hemisphere, the next summer solstice will take place on june 21, 2025.