An estimated 37,000 people gathered to watch the sun rise on the longest day of the year, with a small number of arrests reported by police.
Wiltshire Police said the 25 arrests were mostly for drugs-related offences.
Druids and pagans are among those who mark the summer solstice at sites such as Stonehenge and Avebury.
"We are pleased that the solstice celebrations have been enjoyable events for the majority of people attending," said a spokesman for Wiltshire Police.
The summer solstice or Litha - which means a stopping or standing still of the sun - has a long tradition of attracting people to monuments to witness the sun rising on the longest day.
Police said the road system had worked well with "minimum delays" and many people used public transport .
"It is always a pleasure to see so many people enjoying the event," said the spokesman.