Winter Forecast 2025 Europe 2025. (very) early forecasts are pointing to the northern hemisphere’s 2025/25 season being a la niña winter again after el niño dominated conditions. There is a pronounced change in the jet stream patterns compared to last year, with emerging.

 — so, as we now know what to expect from the winter patterns based on past weather alone, we will continue to the actual winter 2025/2025 predictions. A weaker polar vortex usually means a weaker jet stream, which.