Summer Solstice

18th June 2019 Last updated at 10:31
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The summer solstice is the longest day of the year. This year in the Northern Hemisphere it falls on Friday 21st June. BBC Weather's Stav Danaos looks at the science behind the phenomenon.


  • While it is the day that has the most sunlight, Britain's weather typically does not become hotter until later in the summer.
  • Around the time of the summer solstice areas of Norway, Finland, Greenland, Alaska and other polar regions experience 'midnight sun'.
  • In the Arctic Circle the sun does not set at all. This is down to a latitude 23 degrees from the pole, matching the angle of Earth's tilt.
  • While June 21 is the summer solstice in Britain, for Australia and countries in the southern hemisphere this date marks the winter solstice.
  • The solstice falls between June 20 and June 22 and during a leap year it always falls on June 20.