Average sea water temperature in October:
+82.0°F
| Minimum sea water temperature in October: | 86.5°F |
| Maximum sea water temperature in October: | 78.3°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 84.2°F. The highest and lowest sea temperatures during the month were 86.5°F and 82.6°F.
Monthly sea water temperature in Haikou, °F
Which China resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| Sanya | 84.6°F | 83.6°F |
| Dadunhai | 84.6°F | 83.6°F |
| Yalong Bay | 84.4°F | 83.4°F |
| Beihai | 84.3°F | 82.6°F |
| Hainan | 84.3°F | 82.6°F |
| Haikou | 84.2°F | 82.6°F |
| Shenzhen | 83.9°F | 83.6°F |
| Tainan | 83.9°F | 84.1°F |
| Macau | 83.6°F | 83.3°F |
| Zhuhai | 83.6°F | 83.6°F |
| Hong Kong | 83.3°F | 83.0°F |
| Guangzhou | 83.3°F | 82.6°F |
| Taichung | 81.7°F | 83.3°F |
| Xiamen | 81.5°F | 83.4°F |
| Taipei | 80.2°F | 82.9°F |
| Ningbo | 76.1°F | 78.9°F |
| Nantong | 74.6°F | 74.7°F |
| Shanghai | 74.6°F | 76.3°F |
| Hangzhou | 74.4°F | 79.2°F |
| Suzhou | 73.4°F | 76.8°F |
Best time for vacation in Haikou
Haikou on a weather map
Places in China:
Name
°F
24 Hours Forecast
Haikou
Local time: 01:46
October 28, wednesday
0300
77°F
W
11 mph
11 mph
0600
77°F
W
11 mph
11 mph
0900
81°F
W
14 mph
14 mph
1200
82°F
W
19 mph
19 mph
1500
79°F
W
18 mph
18 mph
1800
79°F
W
16 mph
16 mph
2100
77°F
W
16 mph
16 mph
October 29, thursday
0000
77°F
W
13 mph
13 mph
