The town of Härsnäs in Östergötland measured the mercury at 34C yesterday, marking the high for August weather since 1992. It was also the warmest August day ever recorded in Visby, Gotland, at 32.9C.
But that doesn't mean Swedes are still lounging in their swimsuits. The summer has turned hot, heavy and humid, with storms whipping the country.
On Sunday night 47,901 lightning strikes were recorded - beating this year's previous record of 45,000 by a long shot.
"It's the highest number of strikes we have seen since we started recording them in 2002," Linnea Rehn, meteorologist at SMHI, told news agency TT.
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"We are expecting temperatures of over 30C in Östra Götaland, Svealand, and southwest Norrland," Rehn said. "There is absolutely a possibility of it being even a bit warmer today."
SMHI has issued a class 1 weather warning for "strong thunder and rain" in Skåne, Halland, Kronoberg, Jönköping, Västra Götaland, and Värmland.