About Summer Solstice
The June solstice — the longest day of the year in the Northern Hemisphere — falls on June 20 or 21, and the countdown above targets the next one. It is the moment the Sun reaches its northernmost point in the sky, directly over the Tropic of Cancer, before beginning its six-month journey south.
At higher latitudes the effect is dramatic: London gets over 16½ hours of daylight, Stockholm nearly 18, and north of the Arctic Circle the Sun never sets at all — the midnight sun. For the Southern Hemisphere the same moment is the winter solstice, the shortest day. The word solstice comes from Latin sol (sun) and sistere (to stand still), because the Sun's daily arc pauses at its extreme before reversing.
Humans have marked this moment for millennia: Stonehenge's axis aligns with the solstice sunrise, drawing thousands every June; Scandinavia celebrates Midsummer with maypoles and bonfires; and modern traditions from yoga in Times Square to festivals worldwide keep the oldest holiday alive. After the solstice, days shorten by seconds at first — imperceptibly — toward the December solstice.
Upcoming dates
| 2026 | Sunday, June 21, 2026next |
| 2027 | Monday, June 21, 2027 |
| 2028 | Tuesday, June 20, 2028 |
| 2029 | Thursday, June 21, 2029 |
| 2030 | Friday, June 21, 2030 |
FAQ
When is the summer solstice 2026?
June 21, 2026 — see the upcoming-dates table for the exact day each year (it alternates between June 20 and 21).
Is the solstice the hottest day?
Usually not — peak heat lags weeks behind peak daylight because land and oceans take time to warm, a phenomenon called seasonal lag.
Why does the solstice date change?
The astronomical year is about 365.24 days, so the solstice moment drifts and is reset by leap years — landing on June 20 or 21.
What happens at the Arctic Circle?
On the June solstice, locations on the Arctic Circle get 24 hours of daylight — the midnight sun. Further north, the sun stays up for weeks or months.