sommerperioden

Sommerperioden, literally “the summer period,” is a term used in Norwegian and Danish contexts to describe the portion of the year characterized by warmer weather and longer daylight. The exact dates and definitions vary by country and purpose, but two common frameworks are widely used. In meteorology, summer typically refers to June, July and August in the Northern Hemisphere. In astronomy, summer lasts roughly from the summer solstice in late June to the autumnal equinox in late September.

In temperate regions, sommerperioden brings higher average temperatures and longer days, with regional variations in precipitation. In northern latitudes, daylight can be very prolonged, and above the Arctic Circle the midnight sun is a notable feature during midsummer.

The sommerperioden influences many aspects of society. It aligns with the growing season in agriculture, often marks peak periods for tourism and outdoor recreation, and can lead to changes in work and school calendars towards extended holidays. Energy demand and transportation activity typically increase as people travel more and engage in outdoor activities.

Climate change may affect the duration and characteristics of the sommerperioden, potentially causing earlier onset of warmth, more frequent heatwaves, and shifts in precipitation patterns in various regions. See also: Summer, Growing season, Warm season.