26.12
fri
fri
Day
68°F
W 7 mph
Precip.
83%
83%
Night
61°F
W 4 mph
Precip.
80%
80%
27.12
sat
sat
Day
72°F
W 7 mph
Precip.
73%
73%
Night
63°F
NW 6 mph
Precip.
65%
65%
28.12
sun
sun
Day
72°F
W 7 mph
Precip.
76%
76%
Night
64°F
W 4 mph
Precip.
0%
0%
29.12
mon
mon
Day
72°F
W 7 mph
Precip.
77%
77%
Night
64°F
NW 4 mph
Precip.
24%
24%
30.12
tue
tue
Day
72°F
NW 6 mph
Precip.
0%
0%
Night
64°F
NW 3 mph
Precip.
0%
0%
31.12
wed
wed
Day
73°F
W 8 mph
Precip.
28%
28%
Night
61°F
NW 4 mph
Precip.
26%
26%
01.01
thu
thu
Day
73°F
NW 7 mph
Precip.
47%
47%
Night
63°F
NW 3 mph
Precip.
0%
0%
02.01
fri
fri
Day
75°F
W 6 mph
Precip.
100%
100%
Night
64°F
W 5 mph
Precip.
25%
25%
03.01
sat
sat
Day
72°F
W 10 mph
Precip.
100%
100%
Night
64°F
W 7 mph
Precip.
71%
71%
04.01
sun
sun
Day
72°F
W 9 mph
Precip.
59%
59%
Night
64°F
W 6 mph
Precip.
0%
0%
05.01
mon
mon
Day
66°F
W 8 mph
Precip.
70%
70%
Night
59°F
W 5 mph
Precip.
0%
0%
06.01
tue
tue
Day
63°F
W 6 mph
Precip.
26%
26%
Night
59°F
W 4 mph
Precip.
0%
0%
07.01
wed
wed
Day
66°F
W 9 mph
Precip.
24%
24%
Night
63°F
NW 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 72.9°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: 02:00
December 26, friday
0300
57°F
SW
6 mph
6 mph
0600
57°F
W
4 mph
4 mph
0900
61°F
W
6 mph
6 mph
1200
68°F
W
7 mph
7 mph
1500
68°F
W
7 mph
7 mph
1800
64°F
W
7 mph
7 mph
2100
63°F
W
7 mph
7 mph
December 27, saturday
0000
61°F
W
4 mph
4 mph
