But thunder storms have since been moving in across the country and prompted weather institute SMHI to issue a warning for heavy rain and flooding on Wednesday.
Some 35 millimetres of the wet stuff was expected to fall in central parts of Sweden in the afternoon, before heading northwards, SMHI meteorologist Lovisa Andersson told broadcaster SVT.
“It could affect traffic because the risk of aqua planing increases. And stormwater pipes could become overloaded,” she warned.
I hope everyone enjoyed their Swedish summer.
— Greg Poehler (@GregPoehler) July 6, 2015
For the rest of the week, southern and central Sweden will see the mercury climb no higher than 17-18C, while dropping to 13C in northern parts of the country.
IN PICTURES: Dream yourself back to Sweden's heatwave
According to Frode Korneliussen from the Storm weather institute, there is no knowing when the summery weather is going to return.
“You can't really say at this stage. But you just have to grab the opportunity when the sun is out – that's when temperatures can edge up towards 20C,” he told Expressen.
— Peter Kack (@RadioTailgate) July 8, 2015
While Sweden has a reputation as a chilly, snowy destination, it has the warmest climate of all the Nordic countries, with an average maximum temperature of 23C in July.
And last month an industry survey showed that Swedish camp sites are set for a record-breaking summer as foreign visitors flock to the Nordic country.
Damp weather at Bredäng camp site in Stockholm on Wednesday. Photo: Maja Suslin/TT
Wednesday's rain comes less than a week after the Swedish weather agency issued its first hot weather warning of the year, telling people to drink extra water and be on the lookout for forest fires as mercury levels soared in the south of the country.
Neighbouring Denmark has also been basking in a heatwave, but experienced the same stormy, wet weather as southern Sweden on Monday.