31.12
wed
wed
Day
73°F
W 6 mph
Precip.
0%
0%
Night
61°F
NW 3 mph
Precip.
0%
0%
01.01
thu
thu
Day
72°F
W 6 mph
Precip.
77%
77%
Night
61°F
W 4 mph
Precip.
83%
83%
02.01
fri
fri
Day
61°F
W 8 mph
Precip.
89%
89%
Night
55°F
W 4 mph
Precip.
0%
0%
03.01
sat
sat
Day
66°F
W 9 mph
Precip.
83%
83%
Night
57°F
NW 3 mph
Precip.
82%
82%
04.01
sun
sun
Day
66°F
W 8 mph
Precip.
70%
70%
Night
57°F
W 2 mph
Precip.
0%
0%
05.01
mon
mon
Day
66°F
SW 9 mph
Precip.
45%
45%
Night
55°F
W 2 mph
Precip.
0%
0%
06.01
tue
tue
Day
66°F
W 7 mph
Precip.
0%
0%
Night
55°F
W 3 mph
Precip.
0%
0%
07.01
wed
wed
Day
66°F
SW 7 mph
Precip.
0%
0%
Night
55°F
N 2 mph
Precip.
0%
0%
08.01
thu
thu
Day
68°F
W 6 mph
Precip.
0%
0%
Night
55°F
NW 2 mph
Precip.
0%
0%
09.01
fri
fri
Day
68°F
SW 8 mph
Precip.
0%
0%
Night
54°F
NW 3 mph
Precip.
0%
0%
10.01
sat
sat
Day
68°F
W 8 mph
Precip.
0%
0%
Night
57°F
W 2 mph
Precip.
87%
87%
11.01
sun
sun
Day
68°F
SW 8 mph
Precip.
0%
0%
Night
54°F
NW 2 mph
Precip.
0%
0%
12.01
mon
mon
Day
68°F
W 9 mph
Precip.
0%
0%
Night
55°F
NW 3 mph
Precip.
0%
0%
13.01
tue
tue
Day
66°F
W 7 mph
Precip.
22%
22%
Night
61°F
W 6 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 72.7°F. The highest and lowest sea temperatures during the month were 73.6°F and 71.4°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: 07:22
December 31, wednesday
0900
64°F
NW
4 mph
4 mph
1200
73°F
W
6 mph
6 mph
1500
75°F
W
5 mph
5 mph
1800
68°F
W
7 mph
7 mph
2100
63°F
NW
5 mph
5 mph
January 01, thursday
0000
61°F
NW
3 mph
3 mph
0300
61°F
NW
3 mph
3 mph
0600
59°F
NW
2 mph
2 mph
