When Does Summer Start 2024 Canada Bc. Winter starts at the moment when the sun is farthest south: Summer 2024 starts on thursday, june 20th in the northern hemisphere, with the first day of summer being the longest daylight day of the year with the earth's axis having.
The first day of summer is also known as the summer solstice, and in 2024 it happens on thursday, june 20 at 4:51 p.m. Summer solstice is no public holiday in 2025 in canada.