Winters in Zeist are chilly, with temperatures often below freezing and averaging around 3-5°C. Spring brings a slow warming trend, with temperatures gradually increasing from March onwards, but still experiencing occasional cold snaps. Summers are mild to warm, with July and August being the warmest months, averaging around 18°C. Autumn is similar to spring, with temperatures cooling down slowly, but not as harshly as in winter. The temperature fluctuations throughout the year result in a relatively moderate climate overall.