21.12
sun
sun
Day

75°F
W 8 mph
Precip.
100%
100%
Night

64°F
NW 4 mph
Precip.
82%
82%
22.12
mon
mon
Day

72°F
W 7 mph
Precip.
100%
100%
Night

66°F
NW 4 mph
Precip.
78%
78%
23.12
tue
tue
Day

77°F
W 9 mph
Precip.
70%
70%
Night

68°F
NW 4 mph
Precip.
73%
73%
24.12
wed
wed
Day

79°F
W 6 mph
Precip.
64%
64%
Night

68°F
W 4 mph
Precip.
68%
68%
25.12
thu
thu
Day

73°F
SW 9 mph
Precip.
100%
100%
Night

63°F
SW 7 mph
Precip.
100%
100%
26.12
fri
fri
Day

63°F
W 6 mph
Precip.
74%
74%
Night

59°F
W 2 mph
Precip.
100%
100%
27.12
sat
sat
Day

64°F
W 7 mph
Precip.
100%
100%
Night

61°F
W 6 mph
Precip.
78%
78%
28.12
sun
sun
Day

68°F
W 8 mph
Precip.
63%
63%
Night

61°F
W 3 mph
Precip.
52%
52%
29.12
mon
mon
Day

66°F
W 5 mph
Precip.
57%
57%
Night

59°F
NW 3 mph
Precip.
0%
0%
30.12
tue
tue
Day

70°F
W 5 mph
Precip.
21%
21%
Night

63°F
SW 2 mph
Precip.
0%
0%
31.12
wed
wed
Day

70°F
SW 6 mph
Precip.
28%
28%
Night

57°F
NW 4 mph
Precip.
0%
0%
01.01
thu
thu
Day

68°F
W 8 mph
Precip.
27%
27%
Night

63°F
NW 4 mph
Precip.
64%
64%
02.01
fri
fri
Day

73°F
NW 7 mph
Precip.
70%
70%
Night

64°F
NW 4 mph
Precip.
67%
67%
03.01
sat
sat
Day

72°F
W 7 mph
Precip.
100%
100%
Night

64°F
W 4 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 73.0°F. The highest and lowest sea temperatures during the month were 73.6°F and 72.0°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 67.8°F. The highest and lowest sea temperatures during the month were 69.1°F and 66.6°F.
Air temperature in Hainan, °F
Precipitation total in Hainan, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Hainan
Hainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Hainan
Local time: 18:24
December 21, sunday
2100

64°F
NW
4 mph
4 mph
December 22, monday
0000

64°F
NW
4 mph
4 mph
0300

64°F
NW
5 mph
5 mph
0600

66°F
W
6 mph
6 mph
0900

66°F
W
5 mph
5 mph
1200

72°F
W
7 mph
7 mph
1500

73°F
W
9 mph
9 mph
1800

70°F
W
7 mph
7 mph



























