When Is The First Day Of Summer In Canada Today

Complicating matters further is a uniquely Canadian phenomenon known as the "May Two-Four" weekend. While not the official start of summer by any scientific definition, the federal holiday of Victoria Day—celebrated on the Monday preceding May 25th—is widely culturally regarded as the unofficial start of the summer season.

The specific date and time of the solstice can vary slightly due to the calendar year not being exactly 365 days. In 2024, for example, the summer solstice occurred on June 20th. During the solstice, the North Pole is tilted at its maximum angle (approximately 23.5 degrees) toward the sun. This results in the longest period of daylight and the shortest night of the year for the Northern Hemisphere. when is the first day of summer in canada