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What Day Is First Day of Summer 2026?
Sunday
First Day of Summer is on Sunday, June 21, 2026.
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116
days
First Day of Summer
Date details for First Day of Summer 2026
- Day of week: Sunday
- Date: Sunday, June 21, 2026
- Days remaining: 116
- Weeks remaining: 16
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About First Day of Summer
The first day of Summer 2026 is Sunday, June 21st.
History & Significance
This date marks the Summer Solstice in the Northern Hemisphere, the longest day of the year.
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