Exact Seasonal Dates for Both Hemispheres

Northern Hemisphere

• Spring: March 20 – June 20
• Summer: June 21 – September 22
• Autumn: September 23 – December 20
• Winter: December 21 – March 19

Southern Hemisphere

• Spring: September 23 – December 20
• Summer: December 21 – March 19
• Autumn: March 20 – June 20
• Winter: June 21 – September 22