Sakarya's winters are chilly, with temperatures often below freezing in January and February, averaging around 8°C. As spring approaches, March brings slightly warmer days, but April and May see a significant rise, with average highs reaching 18°C in May. Summers are warm to hot, with July and August being the hottest months, featuring high temperatures sometimes exceeding 36°C. Autumn is generally mild, with September and October experiencing pleasant temperatures, before cooling down again in November and December.