worldweather31°Cwarmer than usual
usually 27°C–32°C
warmer than 71% of similar days
night: exceptionally warm
rain: typical rainfall
wind: typical
Weather in Chengdu - 14-day forecast
Detailed weather forecast for Chengdu, People's Republic of China: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Chengdu
today☀️
31°💧 2.2 mm
Sun🌧️
34°💧 1.4 mm
Mon🌧️
31°💧 3 mm
Tue🌧️
25°💧 3.7 mm
Wed🌧️
19°💧 20.4 mm
Thu🌧️
19°💧 1.2 mm
Fri🌧️
25°💧 1.1 mm
Sat🌧️
20°💧 2.9 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Wednesday 9 Sept in Chengdu, the forecast high is 19°C. Typical daytime temperatures at this time of year range from 26°C to 31°C, so it will be exceptionally cool. It is cooler than 100% of similar days.
34°Cexceptionally warm
usually 26°C–32°C
warmer than 90% of similar days
night: exceptionally warm
rain: typical rainfall
wind: typical
31°Cwarmer than usual
usually 26°C–32°C
warmer than 77% of similar days
night: exceptionally warm
rain: typical rainfall
wind: typical
25°Ccooler than usual
usually 26°C–32°C
cooler than 86% of similar days
night: exceptionally warm
rain: typical rainfall
wind: stronger than usual
19°Cexceptionally cool
usually 26°C–31°C
cooler than 100% of similar days
night: near normal
rain: exceptionally wet
wind: stronger than usual
19°Cexceptionally cool
usually 26°C–31°C
cooler than 100% of similar days
night: near normal
rain: typical rainfall
wind: typical
25°Ccooler than usual
usually 26°C–31°C
cooler than 85% of similar days
night: warmer than usual
rain: typical rainfall
wind: lighter than usual
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 29°C by day. The coolest year was 2000 (24°C) and the warmest was 1997 (36°C). The current forecast averages 26°C - lower than in 87% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Chengdu
Chengdu 30 & 45-day weather - long-range outlook
Next 16 days · forecast
25°
around 23° at night · days with rain: 13
Weeks 3-4 · avg for September
26°
around 20° at night · rain chance 76%
Weeks 5-7 · avg for October
22°
around 17° at night · rain chance 61%
The 30 & 45-day outlook for Chengdu: the next 16 days are a numerical forecast updated daily - on average 25° by day and 23° at night. Further out we rely on multi-year climate averages: around 26° in September, and about 22° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Chengdu
Saturday5 September 2026
☀️31°clear sky
Sunday6 September 2026
🌧️34°light rain
Monday7 September 2026
🌧️31°light rain
Tuesday8 September 2026
🌧️25°light rain
Wednesday9 September 2026
🌧️19°moderate rain
Thursday10 September 2026
🌧️19°light rain
Friday11 September 2026
🌧️25°light rain
Saturday12 September 2026
🌧️20°light rain
Sunday13 September 2026
🌧️24°light rain
Monday14 September 2026
☀️26°clear sky
Tuesday15 September 2026
☀️27°clear sky
Wednesday16 September 2026
🌧️21°light rain
Thursday17 September 2026
🌧️22°light rain
Friday18 September 2026
🌧️21°moderate rain
Saturday19 September 2026
🌧️21°moderate rain
Sunday20 September 2026
☁️26°overcast clouds
UV index in Chengdu - is it safe to sunbathe?
Today the UV index in Chengdu is 8 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.
Air quality and smog in Chengdu
Air quality in Chengdu is currently poor. Fine particulate PM2.5: 96.2 µg/m³, PM10: 99.9 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Chengdu | 96.2 | 99.9 | poor |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 09:00).
Chengdu weather through the year
Warmest, driest months on average: March, April, May, June.
Upcoming public holidays in People's Republic of China: Mid-Autumn Festival — 25 September · National Day — 1 October · New Year's Day — 1 January.
Nearby and related places
FAQ - Chengdu weather
What is the weather like in Chengdu today?
Today it is about 31° during the day and 28° at night, clear sky.
How far ahead can I check the forecast for Chengdu?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.