Luneburg's winters are cold and unpredictable, with temperatures often dropping below freezing and averaging around 1°C in January and December. Spring brings gradual warming, with March being the first month to see consistent highs above 10°C, while April and May experience mild temperatures, with average highs ranging from 11 to 17°C. Summer is relatively cool, with July and August enjoying warm but not hot days, averaging around 19°C, although June can occasionally reach highs of up to 34°C. Autumn sees a return to cooler temperatures, with October and November averaging around 6-10°C, before winter sets in again.