Spring Equinox 2024 Northern Hemisphere Calendar. When is the spring equinox in the northern hemisphere? The spring equinox in the northern hemisphere occurs punctually on march 20th 2024, when the sun crosses the plane of the.

In the southern hemisphere, it will occur on september 22, 2024, at 12:44 gmt (07:44 a.m. Here’s what to know about how.