The Helsinki weather forecast is finally turning in favor of summer. After weeks of damp skies and chillier-than-usual air, the capital is now bracing for what may be its warmest stretch of the season.
Starting Monday evening, the air is expected to dry out, skies will clear, and temperatures will begin a steady climb. On Tuesday and Wednesday, Helsinki could hit 24°C. In nearby Vantaa, forecasters are expecting highs of 25°C, which would officially mark the city’s first heatwave day of the year.
Espoo is also catching the heat, with predictions hovering between 23°C and 24°C. Across the metropolitan region, temperatures are set to vary from 20°C to 25°C, according to weather agency Foreca and the Finnish Meteorological Institute.
Henriikka Heikinoja, meteorologist at Yle, said this heat will not be limited to the south. Nearly the entire country will feel the rise in temperatures by Tuesday. Even Lapland, which usually stays cooler through June, may hit close to 20°C this week.
Wednesday is shaping up to be the peak. For most of southern Finland, this will be the first true taste of summer heat. The national benchmark for a heatwave, 25°C, is expected to be met in many areas, especially in the capital region and parts of Central Finland.
But don’t get too comfortable. The warm spell is expected to be short-lived.
By Thursday, a low-pressure system is forecast to move into Finland from the west. With it comes cooler air, cloud cover, and scattered showers. Temperatures will begin to drop, with daytime highs falling back to around 19°C or 20°C by Friday.
Rain is expected to return over the weekend. Most parts of the country should prepare for unsettled skies and less stable conditions.
Meteorologists are encouraging residents to enjoy the brief summer window. If you’ve been waiting for a moment to plan a picnic, hit the parks, or just enjoy the outdoors without a jacket, midweek is your best shot.
Foreca also noted that beyond Thursday, weather confidence drops. The patterns driving temperature shifts remain unstable, and long-range predictions remain unclear.
