World Resorts China Hong Kong Weather

Hong Kong Sea Temperature in September

Average sea water temperature in September:
+83.5°F
Minimum sea water temperature in September: 86.7°F
Maximum sea water temperature in September: 79.9°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 84.5°F. The highest and lowest sea temperatures during the month were 86.0°F and 82.0°F.

Monthly sea water temperature in Hong Kong, °F

Which China resorts have warmest sea in September?

Place name September 2025 September 2024
Beihai 86.0°F 86.0°F
Taichung  85.9°F 86.0°F
Shanghai 85.4°F 85.0°F
Tainan 85.4°F 86.2°F
Zhuhai 85.3°F 85.4°F
Suzhou 85.2°F 84.6°F
Nantong 85.1°F 85.4°F
Taipei 85.1°F 85.0°F
Macau 85.0°F 85.4°F
Xiamen 85.0°F 84.0°F
Shenzhen 85.0°F 84.7°F
Guangzhou 84.8°F 85.5°F
Hong Kong 84.5°F 84.3°F
Hainan 84.5°F 85.5°F
Haikou 84.3°F 85.0°F
Yalong Bay 84.2°F 85.5°F
Sanya 84.1°F 85.5°F
Dadunhai 84.1°F 85.5°F
Hangzhou 84.0°F 83.6°F
Ningbo 83.8°F 83.4°F

Best time for vacation in Hong Kong

Sunniest months:
December 14 days
January 13 days
October 13 days
Warmest months:
July 89.1 °F
August 89.1 °F
September 88.2 °F
Warmest sea temp:
July 84.2 °F
August 84.0 °F
September 83.5 °F
Coldest months:
January 67.0 °F
December 68.7 °F
February 69.0 °F
Rainiest months:
June 10 days
August 10 days
July 9 days
Windiest months:
July 9.3 mph
June 9.1 mph
October 8.9 mph

Hong Kong on a weather map

Hong Kong
+66°F
SW 6 mph
Feels like: +66°F
Precip.: 0%
Places in China:
Name
°F
+25°F
+66°F
+70°F
+70°F
+30°F
+68°F
+28°F
+70°F
+70°F
+66°F
+52°F
+37°F
+52°F
+64°F
+70°F
24 Hours Forecast
Hong Kong
Local time: 04:24
December 17, wednesday
0600
66°F
SW
6 mph
0900
68°F
SW
5 mph
1200
72°F
W
7 mph
1500
72°F
W
8 mph
1800
70°F
W
7 mph
2100
68°F
W
9 mph
December 18, thursday
0000
68°F
SW
13 mph
0300
66°F
W
16 mph

Best place for vacation:

Units of measurement: °C / °F