Weather forecast for tomorrowHaikou, China

Weather forecast for tomorrow

Sunday 18. Oct 2026

  • 31°C
  • 25°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 21km/hE 83°
  • Humidity: 76%
  • UV index: 10
  • Sunrise: 06:34 CST
  • Sunset: 18:13 CST
  • ▼
Tomorrow, in Haikou, expect a partly sunny afternoon with variable cloud cover.
Temperature span will be from a high of a blazing 31°C to a low of a warm 25°C.
The maximum heat index, which modifies the air temperature to account for humidity, is appraised at a scorching 40°C. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Today’s forecasted high is set to be a few degrees higher than October's regular high of 28.4°C.
Sunrise will be at 06:34 and sunset at 18:13; tomorrow's daylight will last for 11h and 39min.

Hourly overview

Hourly temperatures

Warmest period: 12h - 15h 37°C.
Coldest hour: 3h 25°C.

Chance of precipitation

Highest chance: 9h 7%.

Hourly weather forecast

  • 0h
  • 26°C
  • Feels like:
    30°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 6km/hSE 129°
  • Humidity: 89%
  • Pressure: 1014mbar
  • Visibility: 15km
  • UV index: 0
  • ▼
  • 2h
  • 25°C
  • Feels like:
    25°C
Mostly Clear
Mostly Clear
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 6km/hSE 135°
  • Humidity: 93%
  • Pressure: 1014mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 4h
  • 25°C
  • Feels like:
    25°C
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 5km/hSE 140°
  • Humidity: 94%
  • Pressure: 1013mbar
  • Visibility: 9km
  • UV index: 0
  • ▼
  • 6h
  • 25°C
  • Feels like:
    28°C
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 3km/hSE 132°
  • Humidity: 96%
  • Pressure: 1014mbar
  • Visibility: 8km
  • UV index: 0
  • ▼
Sunrise: 06:34
  • 8h
  • 27°C
  • Feels like:
    31°C
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 4km/hESE 113°
  • Humidity: 89%
  • Pressure: 1015mbar
  • Visibility: 15km
  • UV index: 1
  • ▼
  • 10h
  • 29°C
  • Feels like:
    35°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 8km/hE 97°
  • Humidity: 76%
  • Pressure: 1015mbar
  • Visibility: 16km
  • UV index: 6
  • ▼
  • 12h
  • 31°C
  • Feels like:
    37°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 13km/hENE 70°
  • Humidity: 70%
  • Pressure: 1014mbar
  • Visibility: 16km
  • UV index: 10
  • ▼
  • 14h
  • 31°C
  • Feels like:
    37°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 17km/hENE 67°
  • Humidity: 69%
  • Pressure: 1013mbar
  • Visibility: 16km
  • UV index: 8
  • ▼
  • 16h
  • 30°C
  • Feels like:
    36°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 20km/hENE 70°
  • Humidity: 71%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 2
  • ▼
  • 18h
  • 29°C
  • Feels like:
    34°C
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 19km/hE 81°
  • Humidity: 78%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunset: 18:13
  • 20h
  • 28°C
  • Feels like:
    32°C
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 15km/hE 96°
  • Humidity: 84%
  • Pressure: 1013mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 22h
  • 27°C
  • Feels like:
    31°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 12km/hE 101°
  • Humidity: 86%
  • Pressure: 1014mbar
  • Visibility: 15km
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of dull and dry and sunny weather is expected.
The temperature will be between a minimum of 25°C and a maximum of 31°C. The feels-like temperature will vary between the lowest temperature of 25°C and the highest temperature of 37°C. The hottest part of the day will be from 12h to 15h.
Tomorrow, expect temperatures slightly warmer than what is usual for October. Tomorrow, expect the temperature to dip to a level also a couple of degrees higher than the average October low.
Updated: Oct 17, 2026 @ 13:04:04 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, mostly clear with scattered clouds is expected.

Tomorrow, the maximum temperature will be 31°C, while the minimum temperature will be 25°C. The maximum heat index, which reflects the perceived temperature due to humidity levels, is assessed at 40°C.
The maximum temperature tomorrow will be moderately higher than the average highest temperature in October. The lowest temperature will be also relatively higher than the average low of 22.9°C.

On Sunday, in Haikou, sunrise will be at 06:34 and sunset at 18:13 (CST).

In Haikou, tomorrow, there will be 11h and 39min of daylight.