Winters in Yambol are quite chilly, with temperatures often dropping below freezing and averaging around 4-6°C. As the season transitions into spring, temperatures gradually rise, reaching averages of 10-17°C by May. Summer months bring warm to hot conditions, with average highs peaking at 25°C in July and August. Autumn is generally mild, with temperatures fluctuating between cool and mild, averaging around 9-19°C before dropping again in winter. The temperature range throughout the year is quite significant, with an overall variation of around 40-50°C between the coldest and warmest months.