This is because the Earth’s orbit around the Sun does not form a perfect circle, but rather an eclipse,” said Jaco van Wezel from weather website Weeronline. “These moments do not fall on the same day. Though the daylight hours are the shortest, it is neither the latest sunrise, nor the earliest sunset of the year. The day also marks the start of the astronomical winter, but the temperature tells a different tale, with no hope of a White Christmas. December solstice to March equinox: 89.Wednesday marks the shortest day of the year, with just 7 hours and 43 minutes of daylight in the Netherlands between sunrise, at 8:46 a.m., and sunset at 4:29 p.m.September equinox to December solstice: 89.8 days.June solstice to September equinox: 93.6 days.March equinox to June solstice: 92.8 days.On average, summer lasts for 93.6 days in the Northern Hemisphere and 89.0 days in the Southern Hemisphere. The Earth does not move at a constant speed in its elliptical orbit, so the seasons are not of equal length. June | July | August | September Southern summer monthsĭecember | January | February | March How Long Is Summer? Read more about the history and meaning of the summer months: Northern summer months South of the equator, it starts in December and ends in March. In the Northern Hemisphere, astronomical and meteorological summer runs from June to September. Summer festivals: Midsummer, Epona, and a celebration of femininity Summer Months The start of summer and the summer solstice are celebrated in cultures and religions around the world with various traditions, holidays, and festivals. This is because it takes time for Earth to cool down, an effect known as seasonal lag. © Shorter Days, but Rising TemperaturesĪlthough daylight hours decrease during the summer months, temperatures continue to rise in most regions. Places within the polar circles experience Midnight Sun or polar day during all or part of the summer season when the Sun does not set at all.Įarliest sunrise is not on the longest dayĮarth's position in relation to the Sun's rays at the June solstice. In Toronto, the longest day is just over 15 hours and 26 minutes long in Miami, roughly 2000 kilometers or 1200 miles farther south, it lasts about 13 hours and 45 minutes. Locations closer to the poles experience larger differences in day length throughout the year, so summer days are longer there. This means days get shorter during summer-very slowly at first, but at ever-larger daily intervals as the September equinox approaches, heralding the start of fall. Meteorological and other seasons definitions Days Get Shorter During SummerĪstronomical summer begins at the summer solstice, which is the longest day of the year. And, in some countries, the beginning of the seasons is determined by average temperatures rather than fixed dates or astronomical events. Meteorologists use a different method of defining the first day of summer. ![]()
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