Hong Kong · South China Sea
Hong Kong
Sea
83.7°F
Air
–
UV
–
Bathtub
Above 28°C
More like this
Climate · monthly averages
Sea temperature by month
5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
61°F
64°F
68°F
72°F
75°F
79°F
82°F
86°F
90°F
93°F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MinMin °F
6665.5
6766.6
6968.8
7373.0
7877.9
8382.8
8585.0
8483.9
8383.1
8180.5
7575.1
7069.7
AvgAvg °F
6867.5
6868.4
7170.6
7574.9
8079.8
8383.4
8585.5
8584.6
8484.2
8281.6
7676.2
7171.2
MaxMax °F
7069.5
7069.6
7372.6
7777.3
8282.4
8484.2
8686.2
8585.2
8585.1
8282.4
7777.4
7272.3
Warmest in July (85.5°F). Coldest in January (67.5°F). Comfortable for swimming year-round.
About Hong Kong
The South China Sea waterfront of the territory centres on Victoria Harbour, the deep natural channel separating Hong Kong Island from Kowloon and lit nightly since 2004 by A Symphony of Lights, the Guinness-listed sound-and-light show across both skylines. Repulse Bay curves along the island's south shore with lifeguards and a Tin Hau temple, calm and family-grade; Big Wave Bay on the east coast draws surfers to open swell. Sea temperatures hold between 27 and 29 °C from July through September, with Chek Lap Kok 40 minutes by Airport Express.