2021 Europe spring forecast highlights (Photo: AccuWeather) 15 February 2021 – There is no mistaking that it is winter in Croatia at the moment with snow falling on the Dalmatian islands and temperatures in temperatures in the minus across the country, but spring officially begins in a bit of five weeks when the equinox occurs on March 20, 2021. So what is in store for spring? Leading global meteorology forecasting service AccuWeather has just released its annual spring forecast for Europe. AccuWeather, who have a history of being accurate with their forecasts, says Croatia can expect stormy weather in early spring thanks to a southerly storm track.