Hainan, China Weather

  1. Hainan, China Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Hainan over the next 12 hours
  7. Temperature and possibility of rain in Hainan in the coming days
  8. Rainfall in Hainan in the coming days
  9. Hainan Weather Summary
  10. Weather averages by month
  11. Hainan's weather
  12. Frequently asked questions
  13. Comments
Hainan, Weather
(Photo by Theodor Lundqvist on Unsplash)

Current conditions

Updated:
28°C
82.4°F
°C °F

Condition: Drizzle

Pressure: 1,008 hPa

Feel like: 34 °C

Temperature: 28°C

Cloud: 100%

Humidity: 79%

Wind: E - 13 km/h

Visibility: 9.24 km

Weather forecast

Sat
19 Sep
23°C / 31°C
Drizzle
Sun
20 Sep
22°C / 31°C
Slight Thunderstorm
Mon
21 Sep
23°C / 29°C
Slight Thunderstorm
Tue
22 Sep
23°C / 28°C
Moderate Drizzle
Wed
23 Sep
22°C / 30°C
Slight Thunderstorm
Hourly forecast today:
04:00 AM
24° / 28°
24° / 28°
Drizzle
79% 32 km/h
05:00 AM
24° / 27°
24° / 27°
Moderate Drizzle
82% 34 km/h
06:00 AM
25° / 27°
25° / 27°
Slight Thunderstorm
88% 36 km/h
07:00 AM
24° / 24°
24° / 24°
Slight Thunderstorm
97% 32 km/h
08:00 AM
24° / 25°
24° / 25°
Moderate Drizzle
96% 30 km/h
09:00 AM
24° / 25°
24° / 25°
Drizzle
93% 25 km/h
10:00 AM
24° / 25°
24° / 25°
Drizzle
94% 24 km/h
11:00 AM
24° / 25°
24° / 25°
Drizzle
96% 22 km/h
12:00 PM
24° / 25°
24° / 25°
Overcast
95% 21 km/h
13:00 PM
24° / 24°
24° / 24°
Overcast
95% 20 km/h
14:00 PM
24° / 24°
24° / 24°
Overcast
96% 20 km/h

30 Day Averages and Extremes

  • Average high 29.17°C
  • Average low 23.33°C
  • Hottest day 33°C (30 September 2026)
  • Coldest day 22°C (20 September 2026)
  • Average humidity 88.27%
  • Days with precipitation 29 days
  • Highest precipitation 99 mm (12 September 2026)

Yesterday's Data

  • Max: 28°C
  • Min: 23°C
  • Total Precipitation: 9 mm

Temperature and possibility of rain in Hainan over the next 12 hours

Temperature and possibility of rain in Hainan in the coming days

Rainfall in Hainan in the coming days

Hainan Climate Summary

Hainan features a Tropical wet and dry or savanna (Köppen classification: Aw), with an average annual temperature of 25.71ºC (78.28ºF), which is about 11.09% higher than the national average for China. Annually, the city experiences approximately 76.12 millimeters (3.0 inches) of rainfall, spread across 144.18 rainy days, accounting for 39.5% of the year.

Longitude 19.5663947
Latitude 109.949686
Yearly high temperature 28.9ºC (84.02ºF)
Yearly low temperature 20.67ºC (69.21ºF)
Hottest month April 31.62ºC (88.92ºF)
Coldest month January 15.31ºC (59.56ºF)
Yearly precip 76.12mm (3.0in)
Days with rainfall 144.18 days (39.5%)
Driest month February (79.85%)
Wettest month August (83.16%)

Weather averages by month

Month High / Low (°C) Rain
January 22.1° / 15.31° 8.18 days
February 25.11° / 16.4° 4.45 days
March 29.22° / 19.16° 7.91 days
April 31.62° / 21.63° 14.55 days
May 33.39° / 23.7° 18.09 days
June 33.48° / 24.42° 13.82 days
July 32.78° / 24.2° 15.09 days
August 31.9° / 23.9° 17.73 days
September 30.98° / 23.34° 15.09 days
October 28.23° / 20.9° 13.0 days
November 25.93° / 19.37° 10.18 days
December 22.05° / 15.65° 6.09 days

Hainan's weather

Frequently asked questions

1. What is the hottest month in Hainan?

April has the highest average monthly temperature (daily mean of 31.62ºC) and January are the coolest (daily mean of 15.31ºC).

2. What should I wear in Hainan today?

For today's very hot weather in Hainan, with the high temperatures above 28ºC (82.4ºF), consider wearing:
- Breathable shorts or skirts
- Thin, moisture-wicking socks
- UV-protective sunglasses
- Loose and airy fabrics like linen or cotton

Temperature

Early
25°C / 27°C
Morning
24°C / 25°C
Afternoon
24°C / 25°C
Evening
24°C / 24°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 430
  • CO 137
  • NH3 0
  • NO2 1
  • O3 90
  • PM10 9
  • PM25 7
  • SO2 1
  • CH4 1,376

Sunrise / Sunset

22:28
10:39