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A man taking a nap in his garden on Sunday, 8 September 2018. The 25-degree mark was breached at least in Rauma and Kemiönsaari, South-west Finland. (Credit: Martti Kainulainen – Lehtikuva)
A man taking a nap in his garden on Sunday, 8 September 2018. The 25-degree mark was breached at least in Rauma and Kemiönsaari, South-west Finland. (Credit: Martti Kainulainen – Lehtikuva)

 

Weather in Finland is expected to take a major step toward the autumn this week, forecasts Markus Mäntykannas, a meteorologist at Foreca.

“Numerical forecasts have suggested already for a couple of days that the weather type will change at the start of next week. What this means in practice is that the sustained period of high-pressure systems will end and more than one low-pressure systems will roll from the Atlantic into Finland,” he wrote in a blog on Sunday.

“The warmest air will simultaneously subside and the weather change to something more typical of mid-September. As of next week, the weather will be more changeable: colder with intermittent rains and winds,” said Mäntykannas.

The first of the rains are to move through large parts of Finland on Tuesday. The showers are expected to be heavy especially in south-west and southern parts of the country.

“We are faced with a major step toward the autumn. The change will also affect temperatures, with the 20-degree temperatures recorded over the weekend changing to 10–15-degree ones across Finland,” he told.

Mäntykannas added that this week may herald the start of the thermal autumn as low as in Central Finland. In southern parts of the country, however, the relatively high night temperatures should keep autumn at bay for a while longer.

“Warm Baltic Sea typically delays the arrival of autumn especially in coastal areas,” he explained.

The thermal autumn is defined as the period when daily temperatures remain between 0ºC and 10ºC.

The Finnish Meteorological Institute (FMI) has issued a strong wind warning for areas along the western and southern coast for Tuesday and for larger, inland areas in Southern and Central Finland for Wednesday. The winds, it says, may reach speeds of 14–15 metres per second.

Aleksi Teivainen – HT
Source: Uusi Suomi

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Helsinki Finland Blustery, 12 °C
Current Conditions
Sunrise: 7:8 am   |   Sunset: 7:15 pm
72%     14.3 m/s     33.728 bar
Forecast
Sun Low: 10 °C High: 13 °C
Mon Low: 8 °C High: 11 °C
Tue Low: 5 °C High: 11 °C
Wed Low: 6 °C High: 12 °C
Thu Low: 9 °C High: 12 °C
Fri Low: 7 °C High: 11 °C
Sat Low: 6 °C High: 11 °C
Sun Low: 8 °C High: 13 °C
Mon Low: 8 °C High: 12 °C
Tue Low: 7 °C High: 12 °C

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