Swimming in Hainan island (Haikou) in october 2025: Average sea temperature in october and tide times in october 2025

Average sea temperature in Hainan island (Haikou) in october 2025.

In october, according to seasonal norms, the sea temperature in Hainan island (Haikou) is:

Minimum: 78°F

Average: 81°F

Maximum: 83°F

Other useful seasonal weather averages in october:

  • Outside temperature: 78°F to 83°F
  • Most common weather: "Moderate rain at times"
  • The wind blows at 16.2mph
  • It rains a total of 12.9in, over 10 day(s).

Should we swim in Hainan island (Haikou) in october?

Yes! The water temperature in Hainan island (Haikou) in october is ideal

In october, swimming is ideal on the beaches around Hainan island (Haikou)! With water reaching 83°F at most and 81°F on average, spending time in the water is very pleasant.

Note also that in october, the climate is tolerable with an average outside temperature of 81°F, 12.9in of precipitation (over 10 days) and 81.35 % humidity.

Water and normal seasonal temperatures in Hainan island (Haikou) in october

October
Average sea temperature 81°F
Minimum sea temperature 78°F
Maximum sea temperature 83°F
Average outside temperature 81°F
Maximum outside temperature 85°F
Minimum outside temperature 79°F
Wind speed 14.3mph
Wind temperature 79°F
Precipitation 12.9in
Number of days of rain 10 jour(s)
(33%)
Humidity 82%
Visibility in kilometers 9.23km
Cloud cover 46%
Our opinion ideal swimming

Chart of the tides in october 2025

Tide times in october 2025 in Hainan island (Haikou)

Swim elsewhere in China in october

City Average T° Max. T° Our opinion
Shanghai in october72°F76°Fpleasant swimming
Dalian in october64°F70°Fcool swimming
Qingdao in october68°F73°Fcool swimming
Wenzhou in october75°F80°Fpleasant swimming
Hainan in october81°F84°Fideal swimming
Hangzhou in october72°F76°Fpleasant swimming
Macao in october80°F84°Fideal swimming
Sanya in october81°F84°Fideal swimming
Shenzhen in october80°F83°Fideal swimming
Xiamen in october77°F81°Fpleasant swimming

Swim in China in october: sea temperature by city

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