26.08
wed
wed
Day
88°F
E 14 mph
Precip.
19%
19%
Night
79°F
NE 7 mph
Precip.
25%
25%
27.08
thu
thu
Day
90°F
E 10 mph
Precip.
11%
11%
Night
81°F
E 7 mph
Precip.
29%
29%
28.08
fri
fri
Day
90°F
E 13 mph
Precip.
8%
8%
Night
82°F
E 10 mph
Precip.
22%
22%
29.08
sat
sat
Day
82°F
E 14 mph
Precip.
26%
26%
Night
81°F
E 11 mph
Precip.
68%
68%
30.08
sun
sun
Day
79°F
NE 8 mph
Precip.
76%
76%
Night
79°F
E 11 mph
Precip.
73%
73%
31.08
mon
mon
Day
82°F
W 10 mph
Precip.
44%
44%
Night
79°F
NE 5 mph
Precip.
52%
52%
01.09
tue
tue
Day
82°F
SE 14 mph
Precip.
39%
39%
Night
79°F
E 6 mph
Precip.
76%
76%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 85.1°F. The highest and lowest sea temperatures during the month were 86.7°F and 83.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 84.3°F. The highest and lowest sea temperatures during the month were 85.1°F and 82.6°F.
Air temperature in Haikou, °F
Precipitation total in Haikou, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Haikou
Haikou on a weather map
Places in China:
Name
°F
24 Hours Forecast
Haikou
Local time: 01:32
August 26, wednesday
0300
79°F
N
15 mph
15 mph
0600
79°F
NE
18 mph
18 mph
0900
79°F
E
11 mph
11 mph
1200
88°F
E
14 mph
14 mph
1500
79°F
NE
16 mph
16 mph
1800
81°F
NE
11 mph
11 mph
2100
81°F
E
11 mph
11 mph
August 27, thursday
0000
79°F
NE
7 mph
7 mph
