First Day Of Winter 2024 Uk 2024. It marks the northern hemisphere’s shortest day (first day of winter) and southern hemisphere’s longest day (first day of summer). It marks the shortest day and longest night of the year and the first day of the.

We’re expecting a la niña uk winter 2024/25, going by the latest enso forecast from noaa, a la niña phase is more than likely to occur this winter. The seasons are defined as spring (march, april, may), summer (june, july, august), autumn.