Chengdu in Summer
In summer (June, July and August), Chengdu sees average daytime highs around 30°C and overnight lows near 22°C, with 710 mm of rain over about 51 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 12% of the time across summer, and the air most often feels oppressive.
Summer is Chengdu's 3rd-best season to visit on our travel score. For the whole year in context, see Chengdu's year-round climate.
- Avg daytime high
- 30°C
- warmest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 710 mm
- 51 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.2
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Chengdu in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in Chengdu reaches about 30°C and drops to 22°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Chengdu
Once humidity and wind are folded in, summer brings about 47 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Chengdu weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 10° / 4° | 3 | 1 | 10.2 | 2.5 |
| Feb | 12° / 6° | 7 | 2 | 10.9 | 3.8 |
| Mar | 17° / 10° | 19 | 5.5 | 11.8 | 5.8 |
| Apr | 23° / 15° | 43 | 7.9 | 12.7 | 6.7 |
| May | 27° / 18° | 66 | 9.7 | 13.5 | 6.1 |
| Jun | 29° / 21° | 128 | 11.7 | 13.9 | 5.0 |
| Jul | 30° / 23° | 292 | 19.8 | 13.8 | 3.6 |
| Aug | 30° / 23° | 290 | 19.8 | 13.1 | 3.9 |
| Sep | 26° / 19° | 134 | 12.8 | 12.2 | 5.9 |
| Oct | 21° / 15° | 40 | 8.5 | 11.2 | 6.3 |
| Nov | 16° / 10° | 16 | 4.3 | 10.4 | 5.5 |
| Dec | 11° / 5° | 4 | 1.3 | 10.1 | 3.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 12% of the time across summer.
Chance of precipitation in Summer
Chengdu gets around 710 mm of rain over 51 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 48 min in early June to 12 h 42 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 4.4 kWh/m².
Hazard calendar for Chengdu
In summer, Chengdu overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Chengdu's rainy season runs July–September, when most of the year's rain falls.
Is summer a good time to visit Chengdu?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Chengdu for sightseeing.
What to pack for Chengdu in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Chengdu sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 51 days see rain.
UV index in Chengdu in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chengdu peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 5 | 7 | 7 | 9 | 9 | 10 | 9 | 8 | 5 | 4 | 3 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 5 | Moderate |
| Mar | 7 | High |
| Apr | 7 | High |
| May | 9 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Chengdu in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Chengdu is worst in January — around 60 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.
Seasonal pattern from CAMS reanalysis, scaled to Chengdu's WHO annual average of 49.3 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 60 | 58 | 57 | 50 | 47 | 39 | 38 | 38 | 44 | 49 | 54 | 57 |
| Level | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 60 | Unhealthy |
| Feb | 58 | Unhealthy |
| Mar | 57 | Unhealthy |
| Apr | 50 | Poor |
| May | 47 | Poor |
| Jun | 39 | Poor |
| Jul | 38 | Poor |
| Aug | 38 | Poor |
| Sep | 44 | Poor |
| Oct | 49 | Poor |
| Nov | 54 | Poor |
| Dec | 57 | Unhealthy |
Where is Chengdu?
Chengdu sits at 30.7°N, 104.1°E, 499 m above sea level, in China. The nearest listed city is Leshan, 126 km away.
Topography around Chengdu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chengdu.
Within 3 km, the terrain around Chengdu has only modest variations in elevation — a maximum elevation change of 42 m around an average of 501 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 124 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,717 m.
The land around Chengdu is covered by artificial surfaces (88%) within 3 km, artificial surfaces (55%) within 16 km, and trees (53%) and cropland (33%) within 80 km.
China travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / I
- 220 V · 50 Hz
- Prices
- ≈ 47% of US
- price level, 2025
- GDP per capita
- $13,862
- 2025
- Happiness
- 6.1 / 10
- World Happiness, 2025
- Homicide rate
- 0.5
- per 100k, 2020
- Road deaths
- 17.4
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 464
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Chengdu (30.6667°, 104.0667°, elevation 499 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.