Swiss Spring 2026 Among Warmest on Record.

Swiss Spring 2026 became the third warmest spring ever recorded in Switzerland, according to the Federal Office of Meteorology and Climatology (MeteoSwiss). The season brought unusually high temperatures, abundant sunshine, and exceptionally dry weather across much of the country. National temperatures from March to May averaged 1.6°C above the 1991–2020 climate reference period, making it one of the warmest springs in Swiss history.

April stood out as one of the hottest months ever recorded, while May delivered dramatic weather changes. A brief cold spell with frost and snowfall at lower elevations quickly gave way to an unusually early heatwave. By the end of May, several regions recorded new daily temperature highs, highlighting the intensity of the warming trend across Switzerland.

The southern Swiss town of Biasca in Canton Ticino reached 34.8°C on May 28, setting a new May temperature record for the southern side of the Alps. The figure came remarkably close to Switzerland’s all-time May record of 35.1°C, recorded in Sion in 2009. Meteorologists noted that such extreme temperatures are becoming increasingly common during spring months.

Switzerland also experienced one of its driest springs on record. Many regions received between 40% and 90% less rainfall than normal. Eastern Switzerland, including Graubünden and the Engadin region, faced particularly severe dryness, recording the driest spring since weather observations began in 1901.

Experts continue to monitor these climate patterns as rising temperatures and prolonged dry conditions increasingly affect agriculture, water resources, and ecosystems across Switzerland. The latest data highlights the growing impact of climate change on the country’s seasonal weather patterns.