Temperatures hit a whopping 28C – only to be outdone by today’s 29C – paving the way for days of fun in the sun for friends and families.
News photographer Sam Stephenson was in Old Portsmouth to capture the atmosphere on Sunday.
Meanwhile our readers sent in their own photos of how they spent the weekend.
This gallery features 20 of the best hot weather photos from both Sam and our readers.
Please note: Every gallery we run has the words ‘Buy a picture’ next to each photograph included by default. Photos sent in by readers are not shared anywhere else and are not available for purchase.
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Meanwhile our readers sent in their own photos of how they spent the weekend.
5. Best photos of Portsmouth's hot weekend weather
Carys Reed, 23, and Lucy Barron, 23, enjoy the sun trap at the Hot Walls.
Photo: Sam Stephenson
6. Best photos of Portsmouth's hot weekend weather
Two walkers look to sea during the weekend's hot weather in Old Portsmouth.
Photo: Sam Stephenson
7. Best photos of Portsmouth's hot weekend weather
A swimmer heads to the water while two shoppers look to the harbour during the hot weather in Old Portsmouth.
Photo: Sam Stephenson
8. Best photos of Portsmouth's hot weekend weather
The heat was a bit much for Kevin Regan, who appeared to be working.
Photo: Kevin Regan