Finland sees warmer weather in June

June was 1.5–3.5 degrees Celsius warmer than usual in most parts of the country this year, according to Finnish Meteorological Institute (FMI).

The greatest deviations were observed in Lapland, where the highest ever average June temperatures were observed at several stations with up to a 4°C difference compared to the average of the 1991–2020 reference period, said FMI in a press release on Friday.

The eastern part of the country was also warm, but deviations from station averages were rare.

In northern parts of the country, the average temperature varied between 11°C and 16 °C, and in other areas the variation was 14.5–18 degrees Celsius.

The start of the month brought hot weather throughout the country, which means that the highest temperature of the day was at least 25.1 °C in many places.

The middle of the month saw a long period of no high heat, with the exception of the 17th.

There was another long heat wave at the end of the month. In a typical June, hot days are reached on eight days of the month, but this year the hot-weather threshold was crossed on 14 days.

There were more hot days than usual throughout Finland, even an unusually large number in the eastern part of the country. The temperature exceeded 30 degrees Celsius on four days.

The highest temperature in June, 31.4 °C, was measured in Savilahti in Kuopio and in Asemantaus in Heinola on June 28.

The lowest temperature of the month, minus 0.7 °C, was measured at Ylivieska Airport on June 5, which is the lowest temperature of the month in Finland since 1961.

The precipitation levels for the month varied greatly in Finland: in the west and north, monthly precipitation levels were unusually high at several observation stations, while rainfall on the southern coast was lower than usual.

There were more rainy days than usual in the northern and western parts of the country.

The location with the greatest amount of precipitation was Tulkkila in Kokemäki, which saw 135.9 millimetres of rain.

The least precipitation for June was recorded at the Kaisaniemi observation station in Helsinki – 24.4 millimetres.

The greatest amount of precipitation in a single day was at the Teeriranta observation station in Kuusamo – 59 millimetres on 18 June.