Sweden's climate is hard to classify because temperatures, aided by the Gulf Stream, vary considerably from the fields of Skåne to the wilderness of Lapland (the upper tenth of Sweden lies north of the Arctic Circle).
The country as a whole has many sunny days in summer, but it's not super-hot. July is the warmest month, with temperatures in both Stockholm and Gothenburg averaging around 64°F. February is the coldest month, when the temperature in Gothenburg averages around 30°F.
It's not always true that the farther north you go the cooler it becomes. During summer the northern parts of the country--from Halsingland to northern Lapland--may suddenly have the warmest weather and the bluest skies. Check the weather forecasts on television and in the newspapers. (Swedes claim these forecasts are 99% reliable.)
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