Sanya Bay sea temperature today: 30°C – beach water temperature, Sanya Bay, China
China · Hainan

Sanya Bay

Sea
85.6°F
Air
UV
Bathtub
Above 28°C

More like this

Climate · monthly averages
Sea temperature by month
5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
68°F
72°F
75°F
79°F
82°F
86°F
90°F
93°F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Min
73
72
75
79
83
85
85
85
85
83
80
77
Avg
75
74
76
80
84
86
85
86
85
83
80
78
Max
76
76
77
81
85
87
86
87
86
84
81
78

Warmest in June (85.9°F). Coldest in February (74.2°F). Comfortable for swimming year-round.

About Sanya Bay

Sanya Bay traces 22 kilometres of palm-lined strand along the southern coast of Hainan Island, China's only tropical beach resort at 18° north, anchored by the artificial Phoenix Island archipelago rising from the water near the eastern end. East of the city, sheltered Dadonghai forms a compact family cove close to the old town, while Yalong Bay unfurls a 7-kilometre luxury-resort crescent considered the island's finest. Sea temperatures hold 27–29 °C from July through September; the local international airport is roughly 15 minutes by road.