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Summer officially ends as Autumn Equinox passes

The Southern Hemisphere is heading into winter while the Northern Hemisphere is welcoming summer following the equinox on Monday morning.

The equinox is when daytime and nighttime lengths are basically equal and after this point the Southern Hemisphere daylight hours are outweighed by the longer nights.

It happens at a precise time and on Monday that time was 4:32am in New Zealand, 2:32am in Sydney, 3:32pm in the UK on March 20th and 11:32am March 20th for New York.

On the astronomical calendar the equinox marks the end of summer and beginning of autumn. (On the meteorological calendar summer ended on Feb 28).

It’s worth noting that despite this time of year, Auckland had a Humidex/feels like temperature of 31C as of 3pm Monday.

Also, over the next two days in Southland – our region closest to Antarctica and the Southern Ocean – the air temperature will be in the mid to late 20s …and that’s in the shade.



Peter Thomas Langer on 21/03/2022 3:33am

any body who thinks march is more summer than december is CRAZY as in march it doesnt become light untill 7 am unlike december it becomes light before 6am

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