Swimming in Hong Kong Island in september 2025: Average sea temperature in september and tide times in september 2025

Average sea temperature in Hong Kong Island in september 2025.

In september, according to seasonal norms, the sea temperature in Hong Kong Island is:

Minimum: 81°F

Average: 83°F

Maximum: 86°F

Other useful seasonal weather averages in september:

  • Outside temperature: 83°F to 87°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 17.4mph
  • It rains a total of 14.4in, over 15 day(s).

Should we swim in Hong Kong Island in september?

Yes! The water temperature in Hong Kong Island in september is ideal

In september, swimming is ideal on the beaches around Hong Kong Island! With water reaching 86°F at most and 83°F on average, spending time in the water is very pleasant.

Note also that in september, the climate is tolerable with an average outside temperature of 85°F, 14.4in of precipitation (over 15 days) and 79.03 % humidity.

Water and normal seasonal temperatures in Hong Kong Island in september

September
Average sea temperature 83°F
Minimum sea temperature 81°F
Maximum sea temperature 86°F
Average outside temperature 86°F
Maximum outside temperature 88°F
Minimum outside temperature 83°F
Wind speed 11.2mph
Wind temperature 83°F
Precipitation 14.4in
Number of days of rain 15 jour(s)
(49%)
Humidity 80%
Visibility in kilometers 9.07km
Cloud cover 37%
Our opinion ideal swimming

Chart of the tides in september 2025

Tide times in september 2025 in Hong Kong Island

Swim elsewhere in Hong Kong in september

City Average T° Max. T° Our opinion
Kowloon in september84°F86°Fideal swimming
Tai Po in september84°F86°Fideal swimming

Swim in Hong Kong in september: sea temperature by city

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