Oyster Bay experiences a moderate climate with significant seasonal variations. Winters are cold, with temperatures often below freezing and averaging around 2-6°C, while springs bring gradual warming, with temperatures rising to 12-25°C by April. Summer months are mild to warm, with highs rarely exceeding 35-36°C, but with average temperatures in the mid-20s. Autumn brings a return to cooler temperatures, with averages ranging from 8-22°C, before dropping back down to chilly winter conditions.