19.12
fri
fri
Day
79°F
NW 5 mph
Precip.
66%
66%
Night
70°F
S 4 mph
Precip.
0%
0%
20.12
sat
sat
Day
81°F
NW 3 mph
Precip.
0%
0%
Night
70°F
S 4 mph
Precip.
0%
0%
21.12
sun
sun
Day
82°F
W 7 mph
Precip.
0%
0%
Night
70°F
SW 7 mph
Precip.
0%
0%
22.12
mon
mon
Day
79°F
W 13 mph
Precip.
0%
0%
Night
68°F
SW 9 mph
Precip.
73%
73%
23.12
tue
tue
Day
81°F
W 10 mph
Precip.
0%
0%
Night
68°F
SW 9 mph
Precip.
0%
0%
24.12
wed
wed
Day
77°F
W 11 mph
Precip.
0%
0%
Night
66°F
SW 8 mph
Precip.
29%
29%
25.12
thu
thu
Day
77°F
W 12 mph
Precip.
23%
23%
Night
68°F
SW 7 mph
Precip.
0%
0%
26.12
fri
fri
Day
75°F
W 12 mph
Precip.
76%
76%
Night
70°F
SW 9 mph
Precip.
0%
0%
27.12
sat
sat
Day
75°F
W 11 mph
Precip.
0%
0%
Night
68°F
SW 9 mph
Precip.
0%
0%
28.12
sun
sun
Day
75°F
W 11 mph
Precip.
0%
0%
Night
70°F
SW 8 mph
Precip.
0%
0%
29.12
mon
mon
Day
77°F
W 7 mph
Precip.
0%
0%
Night
66°F
SW 6 mph
Precip.
0%
0%
30.12
tue
tue
Day
75°F
NW 4 mph
Precip.
0%
0%
Night
68°F
SW 6 mph
Precip.
0%
0%
31.12
wed
wed
Day
77°F
W 3 mph
Precip.
0%
0%
Night
70°F
SW 9 mph
Precip.
59%
59%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 77.5°F. The highest and lowest sea temperatures during the month were 78.4°F and 76.6°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 73.6°F. The highest and lowest sea temperatures during the month were 75.0°F and 72.1°F.
Air temperature in Sanya, °F
Precipitation total in Sanya, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Sanya
Sanya on a weather map
Places in China:
Name
°F
24 Hours Forecast
Sanya
Local time: 00:35
December 19, friday
0300
70°F
S
4 mph
4 mph
0600
70°F
S
3 mph
3 mph
0900
73°F
SW
3 mph
3 mph
1200
79°F
NW
5 mph
5 mph
1500
77°F
W
3 mph
3 mph
1800
73°F
SW
3 mph
3 mph
2100
72°F
SW
5 mph
5 mph
December 20, saturday
0000
70°F
S
4 mph
4 mph
