28.12
sun
sun
Day
72°F
W 5 mph
Precip.
77%
77%
Night
63°F
NW 3 mph
Precip.
0%
0%
29.12
mon
mon
Day
75°F
W 5 mph
Precip.
72%
72%
Night
63°F
NW 3 mph
Precip.
0%
0%
30.12
tue
tue
Day
72°F
W 6 mph
Precip.
0%
0%
Night
63°F
NW 4 mph
Precip.
0%
0%
31.12
wed
wed
Day
73°F
W 10 mph
Precip.
0%
0%
Night
63°F
NW 4 mph
Precip.
28%
28%
01.01
thu
thu
Day
73°F
W 8 mph
Precip.
21%
21%
Night
63°F
NW 4 mph
Precip.
24%
24%
02.01
fri
fri
Day
73°F
W 8 mph
Precip.
72%
72%
Night
63°F
W 4 mph
Precip.
0%
0%
03.01
sat
sat
Day
72°F
W 9 mph
Precip.
0%
0%
Night
63°F
W 4 mph
Precip.
45%
45%
04.01
sun
sun
Day
70°F
W 8 mph
Precip.
54%
54%
Night
57°F
NW 3 mph
Precip.
0%
0%
05.01
mon
mon
Day
68°F
W 9 mph
Precip.
20%
20%
Night
59°F
NW 4 mph
Precip.
23%
23%
06.01
tue
tue
Day
70°F
W 9 mph
Precip.
81%
81%
Night
61°F
W 4 mph
Precip.
0%
0%
07.01
wed
wed
Day
70°F
W 8 mph
Precip.
0%
0%
Night
57°F
NW 4 mph
Precip.
0%
0%
08.01
thu
thu
Day
70°F
W 8 mph
Precip.
0%
0%
Night
59°F
NW 4 mph
Precip.
0%
0%
09.01
fri
fri
Day
73°F
NW 8 mph
Precip.
0%
0%
Night
63°F
NW 3 mph
Precip.
0%
0%
10.01
sat
sat
Day
75°F
SE 6 mph
Precip.
0%
0%
Night
64°F
SW 5 mph
Precip.
71%
71%
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: 06:09
December 28, sunday
0900
64°F
NW
5 mph
5 mph
1200
72°F
W
5 mph
5 mph
1500
72°F
SW
7 mph
7 mph
1800
66°F
W
4 mph
4 mph
2100
64°F
NW
5 mph
5 mph
December 29, monday
0000
63°F
NW
3 mph
3 mph
0300
61°F
NW
3 mph
3 mph
0600
61°F
NW
3 mph
3 mph
