The Increasing Presence of Hornets in Finland: A Summer Surprise
This summer has brought a noticeable surge in the population of hornets across Finland, as confirmed by the Natural Resources Institute (Luke). These large wasps, known for their distinctive size and aggressive nature, seem to be thriving more than usual this season.
Senior scientist Jouni Sorvari from Luke attributes this spike to a combination of warmer temperatures and extended summers — phenomena that are increasingly tied to climate change. “The changes in our climate are allowing hornets to proliferate,” he explains, highlighting a trend that many wildlife observers have noticed.
Particularly along the southern coast, as well as in southeastern Finland and North Savo, hornets have become a common sight, while other species of wasps are appearing in numbers typical of previous summers.
Adding to the context, the Finnish Meteorological Institute (FMI) recently reported that July recorded exceptionally high temperatures, especially in Finnish Lapland. This warming trend is not just a local anomaly; studies reveal that Finland is warming at a rate significantly faster than the global average.
As the summer continues, the increase in hornet activity serves as a poignant reminder of how our changing climate is affecting local ecosystems.

