An estimated 13,000 people watched the sun rise over the ancient monument in Wiltshire, southwest England, according to event organizers English Heritage.
Stonehenge is thought to be a prehistoric temple aligned with the movement of the sun.
It has become a popular destination for pagan-style celebrations and is often graced with revellers dressed in druid robes and flower garlands for key occasions.
Extra security arrangements were put in place for this year’s ceremonial event, with armed police on patrol.
“This year, following recent terror attacks in London and Manchester, we had an armed presence at Stonehenge along with high visibility patrols,” Superintendent Dave Minty said in a statement.
He added, however, that there was no specific risk to the region.
The Pagan Federation told the BBC it “sadly” accepted the presence of armed police.
Recognizing the need for such security, spokesman for the event David Spofforth said: “You just have to look at the events such as at Finsbury Park, a peaceful religious gathering where people suffered so much by the actions of one hate-filled individual,”
Images of police engaging happily with the crowd were shared online. Seven arrests were made in total, including one for possession of an offensive weapon, but Wiltshire police described the night as peaceful.