17.05
sun
sun
Day
84°F
NE 10 mph
Precip.
0%
0%
Night
81°F
NE 7 mph
Precip.
0%
0%
18.05
mon
mon
Day
84°F
NE 12 mph
Precip.
100%
100%
Night
79°F
E 5 mph
Precip.
68%
68%
19.05
tue
tue
Day
86°F
E 11 mph
Precip.
0%
0%
Night
81°F
NE 2 mph
Precip.
0%
0%
20.05
wed
wed
Day
88°F
NE 12 mph
Precip.
0%
0%
Night
82°F
N 6 mph
Precip.
0%
0%
21.05
thu
thu
Day
90°F
NE 10 mph
Precip.
0%
0%
Night
82°F
SE 4 mph
Precip.
0%
0%
22.05
fri
fri
Day
90°F
E 9 mph
Precip.
0%
0%
Night
84°F
SE 4 mph
Precip.
0%
0%
23.05
sat
sat
Day
90°F
E 11 mph
Precip.
0%
0%
Night
84°F
E 4 mph
Precip.
22%
22%
24.05
sun
sun
Day
90°F
E 9 mph
Precip.
77%
77%
Night
81°F
N 2 mph
Precip.
0%
0%
25.05
mon
mon
Day
86°F
E 6 mph
Precip.
0%
0%
Night
84°F
SE 2 mph
Precip.
0%
0%
26.05
tue
tue
Day
90°F
NE 9 mph
Precip.
0%
0%
Night
84°F
NE 6 mph
Precip.
0%
0%
27.05
wed
wed
Day
88°F
NE 9 mph
Precip.
0%
0%
Night
84°F
NE 4 mph
Precip.
22%
22%
28.05
thu
thu
Day
84°F
E 6 mph
Precip.
100%
100%
Night
82°F
NE 6 mph
Precip.
100%
100%
29.05
fri
fri
Day
82°F
E 7 mph
Precip.
100%
100%
Night
81°F
NE 4 mph
Precip.
100%
100%
30.05
sat
sat
Day
88°F
E 7 mph
Precip.
100%
100%
Night
84°F
E 4 mph
Precip.
100%
100%
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 80.4°F. The highest and lowest sea temperatures during the month were 81.5°F and 79.7°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: 09:06
May 17, sunday
1200
84°F
NE
10 mph
10 mph
1500
84°F
E
9 mph
9 mph
1800
82°F
NE
6 mph
6 mph
2100
81°F
N
6 mph
6 mph
May 18, monday
0000
81°F
NE
7 mph
7 mph
0300
79°F
NE
7 mph
7 mph
0600
77°F
NE
7 mph
7 mph
0900
81°F
NE
9 mph
9 mph
