Winters in Mazeikiai are harsh and cold, with temperatures often below freezing point, averaging around -3°C in January. The coldest month is February, with temperatures ranging from -22°C to a relatively mild 11°C. Spring brings gradual warming, with March temperatures fluctuating between -9°C and 15°C, while April and May see a steady increase, averaging 5°C and 11°C respectively. Summers are warm and pleasant, with June and July averaging around 19°C and 21°C, but can still drop to as low as 8°C in July. Autumn is mild and relatively cool, with temperatures ranging from -1°C in October to 0°C in September.