Realistic illustration of Sweden's pollen warning: birch trees dispersing pollen in sunny heatwave, allergic woman sneezing in foreground with risk map overlay.
Realistic illustration of Sweden's pollen warning: birch trees dispersing pollen in sunny heatwave, allergic woman sneezing in foreground with risk map overlay.
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Pollen warning issued for half of Sweden after heatwave

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Following days of summer heat, high birch pollen levels are warned for half the country in the coming days. The forecast runs until Monday with high risk in Götaland, Svealand, and parts of Norrland. Around three million Swedes suffer from pollen allergy.

Welcome summer heat? Perhaps not if you have pollen allergy, several Swedish media report. In the coming days, there is a high risk of birch pollen in half the country, following days of heat.

According to the Swedish Museum of Natural History, which continuously measures pollen levels, birch flowering has been mild so far – with high levels, but in the lower range. Until Monday, to which the current forecast runs, there is a high risk of high levels across all of Götaland, large parts of Svealand, and a stretch along the Norrland coast and a bit inland. North of this area, there is an elevated risk, while further north it is only a small risk.

In addition, there is an elevated risk of high levels of alder and willow in Götaland, large parts of Svealand, the entire Norrland coast, and large parts of Norrland's interior.

Around three million Swedes are estimated to be allergic to pollen, and it could be particularly troublesome days for those sensitive primarily to birch pollen. Pollen allergy causes symptoms like red and itchy eyes, nasal congestion, repeated sneezing, and runny nose, according to 1177.

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Swedish landscape with birch and oak trees releasing pollen, illustrating high pollen levels warning.
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Warning issued for high birch and oak pollen levels

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High levels of birch pollen are spreading northward in Sweden over the coming days. At the same time the risk of oak pollen is rising in the southern parts of the country, according to the Swedish Museum of Natural History.

SMHI warned on Sunday of a high risk of grass fires along the entire east coast as well as on Öland and Gotland. The risk will decrease on Monday as a precipitation area with rain and snow moves in from the west. SMHI urges caution with open fires and large machinery outdoors.

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SMHI warns of high forest fire risk in southern and central Sweden on Friday. The warning covers nearly all of Götaland and Svealand, except western coastal areas. Grass fire risks are also flagged for northern parts over the weekend.

SMHI has expanded its yellow warnings for thunderstorms on Midsummer's Day to include the entire Norrland coast and large parts of the inland.

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Fire services in Dalarna advise against outdoor fires due to high risk ahead of Walpurgis Night. No fire ban has been issued, but several municipalities are cancelling their bonfires. Forecasts indicate extreme fire risk over the weekend.

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