Sea temperature and swimming season in China

When the sea is warm enough to swim in 26 coastal cities in China.

City	Warmest	Coldest	Swimming season
Shenzhen	29.5°C Jul	17.7°C Jan	Mar – Dec (10 months)
Qingdao	27.4°C Aug	5.9°C Feb	Jun – Oct (5 months)
Dalian	25.9°C Aug	4.3°C Feb	Jul – Oct (4 months)
Xiamen	28.5°C Aug	14.9°C Feb	Apr – Nov (8 months)
Shantou	28.5°C Jul	16.3°C Feb	Apr – Dec (9 months)
Haikou	29.7°C Jul	20.1°C Feb	all year
Wenzhou	29.4°C Aug	10.9°C Feb	May – Nov (7 months)
Yantai	25.3°C Aug	3.6°C Feb	Jul – Oct (4 months)
Taizhou	28.9°C Aug	9.6°C Feb	May – Nov (7 months)
Sanya	29.7°C Jun	23.9°C Feb	all year
Weihai	25.7°C Aug	3.8°C Feb	Jul – Oct (4 months)
Qinhuangdao	26.5°C Aug	0.8°C Feb	Jun – Sep (4 months)
Rizhao	27.9°C Aug	5.7°C Feb	Jun – Oct (5 months)
Yingkou	27.0°C Aug	-1.1°C Jan	Jun – Sep (4 months)
Wenchang	29.4°C Sep	22.8°C Feb	all year
Wanning	29.5°C Sep	23.5°C Feb	all year
Qionghai	29.4°C Sep	22.9°C Feb	all year
Beihai	30.9°C Jul	19.1°C Jan	all year
Shanwei	29.5°C Jul	18.8°C Feb	Mar – Dec (10 months)
Hepu	31.0°C Jul	18.3°C Jan	Feb – Dec (11 months)
Laizhou	28.1°C Aug	1.9°C Feb	Jun – Oct (5 months)
Yatou	25.5°C Aug	3.8°C Feb	Jul – Oct (4 months)
Dengzhou	25.1°C Aug	3.8°C Feb	Jul – Oct (4 months)
Lüshun	25.5°C Aug	4.5°C Feb	Jul – Oct (4 months)
Huilong	28.4°C Aug	7.7°C Feb	Jun – Oct (5 months)
Lingao	30.7°C Jul	20.6°C Feb	all year