If you're looking for summer vibes, the best time to travel to Yantai is in June, July and August, when the average temperature reaches 24.58 °C, while March, May and April are the 3 sunniest months of the year, with an average of 138.83 hours.
If you prefer colder temperatures, however, make sure you visit Yantai during the months of January, February and March to experience an average of 0.08 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during February, December and January, when the average precipitation in Yantai is 4.15 mm, while the months of January, February and March are drier, with an average of 0 mm.