19.12
fri
fri
Day
73°F
S 9 mph
Precip.
100%
100%
Night
70°F
SW 6 mph
Precip.
0%
0%
20.12
sat
sat
Day
75°F
S 9 mph
Precip.
0%
0%
Night
72°F
S 5 mph
Precip.
0%
0%
21.12
sun
sun
Day
79°F
S 7 mph
Precip.
0%
0%
Night
70°F
S 14 mph
Precip.
0%
0%
22.12
mon
mon
Day
77°F
S 8 mph
Precip.
0%
0%
Night
68°F
S 8 mph
Precip.
0%
0%
23.12
tue
tue
Day
75°F
S 11 mph
Precip.
0%
0%
Night
68°F
S 9 mph
Precip.
0%
0%
24.12
wed
wed
Day
75°F
S 10 mph
Precip.
0%
0%
Night
66°F
S 11 mph
Precip.
0%
0%
25.12
thu
thu
Day
72°F
SE 6 mph
Precip.
0%
0%
Night
66°F
S 7 mph
Precip.
0%
0%
26.12
fri
fri
Day
73°F
SE 8 mph
Precip.
0%
0%
Night
66°F
S 12 mph
Precip.
0%
0%
27.12
sat
sat
Day
73°F
NW 12 mph
Precip.
0%
0%
Night
68°F
S 8 mph
Precip.
0%
0%
28.12
sun
sun
Day
75°F
SE 9 mph
Precip.
0%
0%
Night
72°F
S 6 mph
Precip.
0%
0%
29.12
mon
mon
Day
73°F
NW 5 mph
Precip.
0%
0%
Night
70°F
S 7 mph
Precip.
23%
23%
30.12
tue
tue
Day
75°F
S 8 mph
Precip.
0%
0%
Night
68°F
S 9 mph
Precip.
0%
0%
31.12
wed
wed
Day
72°F
S 11 mph
Precip.
0%
0%
Night
68°F
S 12 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 76.4°F. The highest and lowest sea temperatures during the month were 77.7°F and 75.0°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 72.1°F. The highest and lowest sea temperatures during the month were 74.1°F and 69.3°F.
Air temperature in Tainan, °F
Precipitation total in Tainan, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Tainan
Tainan on a weather map
Places in China:
Name
°F
24 Hours Forecast
Tainan
Local time: 00:36
December 19, friday
0300
72°F
S
6 mph
6 mph
0600
70°F
S
6 mph
6 mph
0900
72°F
S
6 mph
6 mph
1200
73°F
S
9 mph
9 mph
1500
72°F
S
10 mph
10 mph
1800
72°F
S
9 mph
9 mph
2100
72°F
S
8 mph
8 mph
December 20, saturday
0000
70°F
SW
6 mph
6 mph
