Wesel's winters are typically cool and unpredictable, with temperatures fluctuating between freezing and mild. The coldest months, January and December, average around 3-5°C, while February is often the chilliest, with lows dipping as low as -15°C. Spring brings gradual warming, with March and April averaging around 6°C, but still experiencing some chilly days. Summer is warm and pleasant, with June and July being the warmest months, averaging 19-20°C. Autumn returns to cooler temperatures, with October and November averaging around 11°C, similar to spring's early stages.