Summer 2024


When is Summer 2024?

Summer 2024 starts on Thursday, June 20, 2024 (in 21 days) and ends on Sunday, September 22nd 2024 (in 115 days).  Calendar for 2024
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.
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What is Summer?

Summer sunrise. Photo: flickr.com/photos/dexxus/5003010775Summer sunrise
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 summer

There 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 summer

In 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 2024 in your area use this seasons calculator.

Meteorological summer

Meteorologists, 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 spring

Dates shown apply to the Northern Hemisphere and are based on UTC (GMT)
Sea­son Start End
Mete­oro­logi­cal Astro­nomi­cal Mete­oro­logi­cal Astro­nomi­cal
Spring March 1 March 19 to 21
Spring equi­nox
(vernal equi­nox, March equi­nox)
May 31 June 20 to 22
Summer sols­tice
(June sols­tice)
Sum­mer June 1 June 20 to 22
Summer solstice
(June solstice)
August 31 Septem­ber 21 to 24
Autumn equi­nox
(Fall equi­nox, Septem­ber equi­nox)
Au­tumn
(Fall)
Sep­tem­ber 1 Septem­ber 21 to 24
Autumn equi­nox
(Fall equi­nox, Septem­ber equi­nox)
Novem­ber 30 Decem­ber 20 to 23
Winter sols­tice
(Decem­ber sols­tice)
Winter Decem­ber 1 Decem­ber 20 to 23
Winter sols­tice
(De­cem­ber sols­tice)
February 28 (29) March 19 to 21
Spring equi­nox
(vernal equi­nox, March equi­nox)

When is Summer 2025?

Summer 2025 starts on Saturday, June 21, 2025 (in 387 days) and ends on Monday, September 22nd 2025 (in 480 days).  Calendar for 2025

Dates for Summer in other years

The next occurrence of Summer is marked in red.

Year Summer starts on Summer ends on
Summer 2019      Friday, June 21, 2019      Monday, September 23, 2019
Summer 2020      Saturday, June 20, 2020      Tuesday, September 22, 2020
Summer 2021      Monday, June 21, 2021      Wednesday, September 22, 2021
Summer 2022      Tuesday, June 21, 2022      Friday, September 23, 2022
Summer 2023      Wednesday, June 21, 2023      Saturday, September 23, 2023
Summer 2024      Thursday, June 20, 2024      Sunday, September 22, 2024
Summer 2025      Saturday, June 21, 2025      Monday, September 22, 2025
Summer 2026      Sunday, June 21, 2026      Wednesday, September 23, 2026
Summer 2027      Monday, June 21, 2027      Thursday, September 23, 2027
Summer 2028      Tuesday, June 20, 2028      Friday, September 22, 2028
Summer 2029      Thursday, June 21, 2029      Saturday, September 22, 2029
Data provided 'as is' without warranty

Summer 2024
Dates of Summer 2024 and surrounding years as downloadable image file

Printable 2024 Calendars for Word, Excel and PDF


Calendar templates 2024 for Word, Excel and PDF

Free printable 2024 calendar templates

A selection of downloadable, printable calendar templates for 2024 with US federal holidays, suitable for a variety of applications. Available for Word, Excel and PDF.


Word

Excel

PDF

Dates of other holidays, events and celebrations

See events index
Calendar templates
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