22.04
wed
wed
Day
95°F
N 6 mph
Precip.
0%
0%
Night
75°F
N 6 mph
Precip.
0%
0%
23.04
thu
thu
Day
97°F
S 4 mph
Precip.
0%
0%
Night
73°F
NE 2 mph
Precip.
0%
0%
24.04
fri
fri
Day
90°F
NW 3 mph
Precip.
100%
100%
Night
73°F
NE 2 mph
Precip.
100%
100%
25.04
sat
sat
Day
82°F
SW 3 mph
Precip.
100%
100%
Night
72°F
NW 4 mph
Precip.
0%
0%
26.04
sun
sun
Day
90°F
NW 5 mph
Precip.
0%
0%
Night
72°F
N 4 mph
Precip.
0%
0%
27.04
mon
mon
Day
88°F
N 7 mph
Precip.
0%
0%
Night
73°F
N 6 mph
Precip.
100%
100%
28.04
tue
tue
Day
91°F
NE 5 mph
Precip.
0%
0%
Night
73°F
N 5 mph
Precip.
0%
0%
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 82.7°F. The highest and lowest sea temperatures during the month were 84.6°F and 80.8°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 84.3°F. The highest and lowest sea temperatures during the month were 85.6°F and 81.1°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: 07:42
April 22, wednesday
0900
82°F
N
7 mph
7 mph
1200
95°F
N
6 mph
6 mph
1500
99°F
N
6 mph
6 mph
1800
82°F
SW
2 mph
2 mph
2100
77°F
NW
3 mph
3 mph
April 23, thursday
0000
75°F
N
6 mph
6 mph
0300
72°F
N
5 mph
5 mph
0600
72°F
N
4 mph
4 mph
