Ayvalik being a seaside town has a Mediterranean climate with hot, dry summers and rainy but mild winters. The average annual temperature is around 16 – 17 degree Celsius.
Summer: From June to August, the days of summer are quite hot and nights are quite cooler. The temperature is about 23 degree Celsius on an average. Rainfall is almost negligible during these months.
Autumn: September to November has a pleasant weather with comfortable temperatures ranging between 14 to 18 degree Celsius on an average.
Winter: The months of December to February are mild and rainy with an average temperature of 7 degree Celsius. Maximum rainfall is received during this period.
Spring: Spring months of March to May have mild temperatures and the crowd is generally less during the season. The average ranges around 12-13 degree Celsius. This is considered to be the off season.
Ayvalik is most popular from the months of June to November and is called the peak season, but if you want to face lesser number of people and affordable rates then the summer months are the best time to visit Ayvalik with your friends and family.