Erika Kameko

Start Of Spring 2025 Canada. In the northern hemisphere, spring begins on the march equinox (around march 20 or 21) and ends on the june solstice (around june 20 or 21). New spring forecasts just revealed which parts of the country will have spring weather right away and which parts will still have to deal with winter.

Summer starts at the moment when the sun is farthest north: Astronomically speaking, the first day of spring is marked by the spring equinox, which always happens on march 19, 20 or 21.