05.08
wed
wed
Day
86°F
E 1 mph
Precip.
65%
65%
Night
75°F
NE 3 mph
Precip.
31%
31%
06.08
thu
thu
Day
82°F
NE 1 mph
Precip.
65%
65%
Night
75°F
N 2 mph
Precip.
30%
30%
07.08
fri
fri
Day
86°F
E 4 mph
Precip.
62%
62%
Night
75°F
NE 4 mph
Precip.
34%
34%
08.08
sat
sat
Day
86°F
E 10 mph
Precip.
48%
48%
Night
75°F
NE 4 mph
Precip.
17%
17%
09.08
sun
sun
Day
88°F
E 8 mph
Precip.
4%
4%
Night
77°F
NE 4 mph
Precip.
18%
18%
10.08
mon
mon
Day
90°F
E 11 mph
Precip.
7%
7%
Night
77°F
NE 4 mph
Precip.
56%
56%
11.08
tue
tue
Day
84°F
E 8 mph
Precip.
36%
36%
Night
75°F
NE 4 mph
Precip.
26%
26%
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 86.2°F. The highest and lowest sea temperatures during the month were 87.6°F and 84.4°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: 18:59
August 05, wednesday
2100
75°F
N
4 mph
4 mph
August 06, thursday
0000
75°F
NE
3 mph
3 mph
0300
75°F
N
3 mph
3 mph
0600
75°F
N
2 mph
2 mph
0900
79°F
N
2 mph
2 mph
1200
82°F
NE
1 mph
1 mph
1500
82°F
SE
3 mph
3 mph
1800
79°F
SW
1 mph
1 mph
