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When is First Day of Summer 2026?
Sunday, June 21, 2026
There are 56 days left until First Day of Summer 2026.
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First Day of Summer
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Date details for First Day of Summer 2026
- Day of week: Sunday
- Full date: Sunday, June 21, 2026
- Days remaining: 56
- Weeks remaining: 8
First Day of Summer 2026 is on Sunday, June 21, 2026. That’s 56 days or 8 weeks from today. Track it with a free countdown widget on your iPhone.
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Open page →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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