Tropical night at 18 locations in the country

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The definition of a tropical night is that the temperature is not less than 20 degrees throughout the night. Tropical nights often occur in connection with heat waves. They usually occur during the latter part of the summer, when the sun has had time to heat the water in our great lakes and oceans.

Long North

On the night of July 18, a tropical night was observed in many parts of the country. Kalmar Airport, Oskarshamn, Stockholm and Kettstaka in the south of Närke. But even as far north as in the Red Sea outside of Luleå

– Most of the time, it is the coastal resorts that receive the tropical nights, since it is so hot that it 's hot. it keeps the temperatures at night, says Lisa Frost, meteorologist at SMHI, at TT

Tropical nights are more common from the west coast up to the coast of Södermanland, but they also occur along the entire North Coast

– The ideal is that the sun gauzes the day to raise the temperature.

More to look forward to

This year, the first tropical night was recorded on Vinga, outside of Gothenburg, exceptionally early, already June 3, 2018. The hottest tropical night measured in Sweden was August 10, 1975 when the lowest measured litter temperature was 23.7 degrees.

SMHI thinks it's not amazing considering the heat we will have more tropical nights in the next few days.