Haikou weather in August 2025

Expect 90°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Haikou in August. Check more long-term weather averages for Haikou in August before you book your next holiday to China in 2025/2026.

  • 90°F maximum daytime temperature in August in Haikou90
    90°F max day temperature
  • 7 hours of sunshine per day
  • 18 days with some rainfall in August in Haikou18
    18 days with some rainfall
  • 77°F minimum night-time temperature in August in Haikou77
    77°F min night temperature
  • 13 hours of daylight per day in August in Haikou13
    13 hours of daylight per day
  • Very high heat & humidity in August in HaikouVH
    Very High heat & humidity
  • 9.3 inches monthly rainfall in August in Haikou9.3
    9.3 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Haikou11
    11+ (Extreme) UV index
  • 84°F sea temperature in August in Haikou84
    84°F sea temperature

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The August weather guide for China (Haikou) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Haikou in August?

Daytime temperatures usually reach 90°F in Haikou in August with very high heat and humidity, falling to 77°F at night.

How sunny is it in Haikou in August?

There are normally 7 hours of bright sunshine each day in Haikou in August - that's 56% of daylight hours.

How warm is the sea around Haikou in August?

The average sea temperature around Haikou in August is 84°F.

Does it rain in Haikou in August?

There are usually 18 days with some rain in Haikou in August and the average monthly rainfall is 9.3 inches.

What is the chance of a typhoon in Haikou in August?

On average 4 days in August in Haikou are likely to be affected by the passage of one or more tropical storms.

Haikou August sunrise & sunset times

Browse the sunrise and sunset times for Haikou in August 2025. Select a month to view Haikou sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:14 19:16
Saturday, 16th August 2025 06:19 19:07
Sunday, 31st August 2025 06:23 18:55

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