Is Haikou hot in October?
Days are typically warm at 28.9°C, while nights average 23.5°C.
China · 1991–2020 normal
Typical October weather in Haikou: 28.9°C by day, 23.5°C at night, 308 mm of rain over 8.6 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, October scores 25 out of 100 (February leads the year at 90). Daylight is calculated as 11 h 39 from latitude 20.03°. Open-water sea temperature is 27.2°C (11 km from the place centre).
October at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically warm at 28.9°C, while nights average 23.5°C.
The measured monthly average is 308 mm across about 9 wet days.
There are about 11 h 39 between sunrise and sunset at mid-month, calculated from the place latitude.
October ranks 7 of 12 in our weather comparison; February ranks first.
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The nearest open-water NOAA OISST 1991–2020 cell averages 27.2°C in October. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
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The weather comparison for Haikou is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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