Winters in Beverwijk are cool and unpredictable, with temperatures often fluctuating between freezing and mild conditions. The coldest months, January and February, typically see average highs around 6°C and 5°C respectively, but can drop as low as -4°C. Spring arrives in March, bringing warmer temperatures that gradually increase throughout the season, peaking at an average high of 16°C. Summer is relatively mild, with July and August averaging a comfortable 17°C, while autumn brings a return to more moderate conditions, with October's average high temperature around 14°C.