When is Summer 2023?Summer 2023 starts on Wednesday, June 21, 2023 (in 270 days) and ends on Saturday, September 23rd 2023 (in 364 days). Calendar for 2023 Show
Please note: The dates given on this
page are based on Coordinated Universal Time (UTC), which for practical purposes is equivalent to Greenwich Mean Time (GMT). While Summer starts and ends at the same moment in time all over the Northern Hemisphere, the date and local time differ from location to location depending on a location's time zone. For more details see the explanations below. What is Summer? Summer is one of the four seasons that make up the year. It is the warmest time of the year and falls between spring and autumn (fall), the intervening periods that lead from and to winter, the coldest time of the year. Astronomical summer vs. meteorological summerThere are various ways to define the start and end dates of summer. The two most commonly used ones are based on the astronomical calendar and the meteorological calendar. Astronomical and meteorological summer start and end on different dates. Astronomical summerIn the astronomical calendar the start and end dates of summer are based on the changing position of Earth in relation to the sun and the resulting solar events of equinoxes and solstices. In the Northern Hemisphere spring ends and summer starts at the moment of the June solstice, which occurs every year between June 20 and June 22. Summer ends and autumn starts at the moment of the September equinox, which occurs every year between September 21 and 24. In the Southern Hemisphere summer lasts from the December solstice (December 20 to 23) to the March equinox (March 19 to 21). The start and end dates for summer given on this page are the dates of astronomical summer in the Northern Hemisphere and are based on Coordinated Universal Time (UTC), which for practical purposes is equivalent to Greenwich Mean Time (GMT - the time zone of the United Kingdom). While summer starts and ends at the same moment in time all over the Northern Hemisphere, the date and local time differ from place to place depending on the year and a location's time zone. For locations that are ahead of UTC (further east) it may fall on the day after, and for locations that are behind UTC (further west) it may fall on the day before. To find out the exact date and time of summer 2023 in your area use this seasons calculator. Meteorological summerMeteorologists, on the other hand, define seasons based on climatic conditions and the annual temperature cycle. It is important for them to be able to compare the same period of time in different years. The length of the astronomical seasons varies between 89 and 93 days, while the length of the meteorological seasons is less variable and is fixed at 90 days for winter in a non-leap year (91 days in a leap year), 92 days for spring and summer, and 91 days for autumn. While the exact definition of a season's timing and length can differ in different areas based on local conditions, in most of the Northern Hemisphere meteorological summer is generally defined as the three months of June, July and August, with the season starting on June 1 and ending on August 31. There is no "official rule" which definition of summer to use, and different countries adhere to different conventions. Most of North America and Europe use astronomical summer, while Australia and New Zealand use meteorological summer (however, as these countries are in the Southern Hemisphere, the seasons are opposed and summer there lasts from December to February). In other cultures, eg. in the traditional Chinese calendar and in Celtic traditions, the June solstice is considered to be roughly the middle of summer. In the United States, with regard to cultural events, the summer season is often considered to begin on Memorial Day (last Monday of May) and end on Labor Day (first Monday of September), thus coinciding more with the meteorological definition of summer. Further reading:
Comparison table: meteorological spring vs. astronomical springDates shown apply to the Northern Hemisphere and are based on UTC (GMT)
When is Summer 2024?Summer 2024 starts on Thursday, June 20, 2024 (in 635 days) and ends on Sunday, September 22nd 2024 (in 729 days). Calendar for 2024 Dates for Summer from 2018 to 2028The next occurrence of Summer is marked in red.
Dates of Summer 2023 and surrounding years as downloadable image file Download free printable calendar templates 2023 for Word, Excel and
PDF 2023 calendar as templates forWord, Excel and PDFA selection of calendar templates for 2023 in landscape and portrait orientation and with US federal holidays, suitable for a variety of applications. 2023 calendar templates for Word 2023 calendar templates for Excel 2023 calendar templates for PDF What is the official end of summer?The astronomical calendar determines the seasons due to the 23.5 degrees of tilt of the Earth's rotational axis in relation to its orbit around the Sun. Both Equinoxes and Solstices are related to the Earth's orbit around the Sun. This year, astronomical summer began on 21 June 2022 and ended on 23 September 2022.
What marks the end of summer?The autumnal (fall) equinox is the halfway point between our longest and shortest days of the year, and usually falls on Sept. 22 or 23.
Why is the last day of summer?The last day of summer is determined by the September or autumn equinox, which marks the first day of fall. The astrological equinox is when the sun passes over the equator in a southward direction.
How long is summer time?On average, summer lasts for 93.6 days in the Northern Hemisphere and 89.0 days in the Southern Hemisphere. Average season lengths: March equinox to June solstice: 92.8 days. June solstice to September equinox: 93.6 days.
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When is the end of summer 2022
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