- Autumn officially begins on September Equinox.
- Weather conditions promote vibrant foliage.
- Longer warm days extend autumn.
As we bid farewell to the summer sun, it’s time to embrace the crisp air and the aroma of pumpkin spice lattes – autumn has officially arrived!
Today signifies the September Equinox, also known as astronomical autumn, where day and night share equal hours of approximately 12 each. For those residing in the northern hemisphere, this marks the commencement of autumn, while our friends in the southern hemisphere welcome the arrival of spring.
There are two distinct dates that mark the onset of autumn – astronomical and meteorological. Astronomical autumn, which commences today, is determined by Earth’s axis and its orbit around the Sun. During the equinox, the Sun illuminates the equator directly, resulting in nearly equal day and night durations worldwide, except at the North and South Poles.
From today onward, the Northern Hemisphere will witness progressively shorter days and longer nights, while the Southern Hemisphere experiences lengthening days and shorter nights.
In contrast, meteorological autumn follows annual temperature patterns, with the season beginning on September 1st and concluding on November 30th.
Experts from Forestry England anticipate a remarkable display of autumnal colors this year, attributing it to a wet spring and record-breaking June temperatures. Spring saw rainfall in Britain that was 55% higher than the average, benefiting tree growth. Subsequently, a sunny June allowed trees to thrive, accumulating sugars that enhance the vivid red, gold, and orange hues in autumn leaves.
The mild start to the month may influence autumn colours. While high temperatures can delay the arrival of autumn, they can also extend its duration, offering more opportunities to witness nature’s captivating transformation. So, as we welcome autumn, let’s relish the gradual shift in leaf colors, creating a truly unique and enchanting spectacle.
