Summer Solstice 2025 Date And Time Canada. The summer solstice is the first day of astronomical summer, although the more logical metrological summer begins december 1st / june 1st (depending on hemisphere). Summer solstice the summer solstice heralds the beginning of summer.

The timing of the solstice depends on when the sun reaches its farthest point north of the equator. The summer solstice is the first day of astronomical summer, although the more logical metrological summer begins december 1st / june 1st (depending on hemisphere).