Measurements:
°C
°F
Hong Kong
70°F
W 10 mph
Feels like: 70°F
Precip: 0%
World Resorts China Hong Kong Weather

Hong Kong Sea Water Temperature

Current Sea Water Temperature:
+72.2°F
Maximum Sea Water Temperature in December: 77.4°F
Minimum Sea Water Temperature in December: 63.2°F
Average water temperature in December: 70.9°F

Sea Water Temperature for the Last 10 Days:

December 04 72.2°F November 29 73.0°F
December 03 72.2°F November 28 73.4°F
December 02 72.2°F November 27 73.4°F
December 01 72.6°F November 26 74.8°F
November 30 72.8°F November 25 74.6°F

When is the Warmest Sea for Hong Kong?

According to our data for the last three years for Hong Kong the highest average sea water temperature was in July, August and September.

Average Water Temperature by Month, °F

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Hong Kong was 88.4°F. The maximum and minimum values were 87.4°F and 89.8°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Hong Kong was 87.6°F. The maximum and minimum values were 86.8°F and 88.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Hong Kong was 88.3°F. The maximum and minimum values were 85.6°F and 90.0°F respectively.

Best Time to Visit Hong Kong
The most sunny months:
December 14 days
January 13 days
October 13 days
The most warm months:
July 93.5 °F
August 93.5 °F
September 92.4 °F
Warmest sea temperature:
July 88.0 °F
August 87.7 °F
September 87.3 °F
The most cold months:
January 68.9 °F
December 70.8 °F
February 71.1 °F
The most rainy months:
June 10 days
August 10 days
July 9 days
The most windy months:
July 9 mph
June 9 mph
October 9 mph

Hong Kong on the Weather Map

China Resorts:
NAME
Beidaihe +38
Beijing +36
Dadunhai +82
Dalian +42
Guangzhou +74
Haikou +74
Hainan +72
Hong Kong +70
Macau +72
Quingdao +40
Sanya +82
Shanghai +56
Shenzhen +74
Weihai +40
Yalong Bay +82
24 Hours Weather Forecast
Hong Kong
Local time: 12:42
05 dec, friday
1500 70°F
W
11 mph
1800 68°F
W
9 mph
2100 68°F
W
12 mph
06 dec, saturday
0000 68°F
W
13 mph
0300 68°F
W
14 mph
0600 68°F
W
14 mph
0900 68°F
SW
11 mph
1200 70°F
W
7 mph

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