What Is the “First Day” of Summer?
Astronomers define the first day of summer by the summer solstice, which is the moment the Sun reaches its highest point in the sky in the Northern Hemisphere. This typically falls between June 20–22 each year
When Is the First Day of Summer 2025?
The First Day of Summer 2025 in the United States is Friday, June 20. This date marks the astronomical start of summer, known as the summer solstice — when the Earth’s Northern Hemisphere tilts most directly toward the Sun.
This shift leads to the longest day of the year, with the most daylight hours, making June 20 the official start of summer 2025.
What Time Does Summer Begin?
The 2025 summer solstice occurs at 10:42 PM Eastern Daylight Time (EDT) on June 20. That means:
- Eastern Time (ET): 10:42 PM
- Central Time (CT): 9:42 PM
- Mountain Time (MT): 8:42 PM
- Pacific Time (PT): 7:42 PM
From this moment onward, summer 2025 has officially begun.
What Is the Summer Solstice?
The summer solstice is the day when the Sun is at its highest point in the sky over the Northern Hemisphere. It’s a turning point in Earth’s orbit when the days are longest and nights are shortest.
If you’re searching “is today the first day of summer” on or around June 20, 2025 — the answer could very well be yes.
Why the Date Can Vary Each Year
The First Day of Summer doesn’t fall on the same date every year. It typically occurs between June 20 and June 22, depending on:
- Earth’s elliptical orbit
- Leap years
- Minor shifts in Earth’s axis rotation
In 2025, the solstice — and thus summer — comes slightly early on June 20.
First Day of Summer 2025 USA: Astronomical vs. Meteorological
There are two ways to define summer:
| Type | Starts | Ends |
|---|---|---|
| Astronomical Summer | June 20, 2025 | September 22, 2025 |
| Meteorological Summer | June 1, 2025 | August 31, 2025 |
So while weather experts begin counting summer 2025 from June 1, the true First Day of Summer 2025 by celestial standards is June 20.
Summer Solstice Rituals in the U.S.
Across the country, people celebrate the 2025 summer solstice in diverse and meaningful ways:
- Sunrise yoga sessions in Central Park or on the beach
- Fire ceremonies and bonfires in spiritual communities
- Solstice-themed festivals in states like California, Colorado, and Oregon
- Mindfulness, music, and movement gatherings honoring light and renewal
These summer solstice rituals honor the energy, growth, and abundance associated with this powerful day.
Summary: Solstice Summer 2025
| 📌 What | 📅 Details |
|---|---|
| Event | First Day of Summer 2025 |
| Date | Friday, June 20, 2025 |
| Time (EDT) | 10:42 PM |
| Sun’s Position | Directly over Tropic of Cancer |
| Significance | Longest day of the year |
| Season Ends | September 22, 2025 (Fall Equinox |
FAQs: First Day of Summer 2025
Q1: What is the exact date and time of the First Day of Summer 2025?
👉 June 20, 2025, at 10:42 PM EDT.
Q2: Is today the First Day of Summer?
👉 If today is June 20, 2025, then yes — summer officially begins.
Q3: What are common summer solstice rituals in the U.S.?
👉 Solstice celebrations include yoga at sunrise, bonfires, music festivals, and spiritual gatherings.
Q4: Why does the solstice change dates?
👉 Due to Earth’s tilted axis, orbital path, and leap years, the solstice can fall between June 20–22.
Q5: How is meteorological summer different?
👉 It starts on June 1 and is based on weather patterns, not astronomy.
Final Thoughts
The First Day of Summer 2025 isn’t just a date on the calendar — it’s a celestial event, a cultural celebration, and a signal that long, sunny days are here.
Whether you’re planning travel, attending solstice events, or simply enjoying the extra daylight, June 20, 2025 marks a special moment across the U.S.
