Chengdu climate
Chengdu (Sichuan, China) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 17 °C63 °F, and about 990 mm39 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Chengdu climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1151 | 032 | 541 | 120.5 | 12 |
| Feb | 1457 | 236 | 847 | 140.5 | 4 |
| Mar | 2068 | 745 | 1457 | 331.3 | 0 |
| Apr | 2578 | 1355 | 1966 | 602.4 | 0 |
| May | 2985 | 1762 | 2373 | 963.8 | 0 |
| Jun | 3289 | 2069 | 2679 | 1295.1 | 0 |
| Jul | 3290 | 2373 | 2882 | 2248.8 | 0 |
| Aug | 3187 | 2272 | 2680 | 2017.9 | 0 |
| Sep | 2780 | 1864 | 2272 | 1275.0 | 0 |
| Oct | 2272 | 1355 | 1864 | 592.3 | 0 |
| Nov | 1763 | 745 | 1254 | 230.9 | 0 |
| Dec | 1153 | 134 | 644 | 110.5 | 6 |
| Year | 3290 | 032 | 1763 | 99039 | 23 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 74% | 81% | 1.9 | 10:22 |
| Feb | 72% | 84% | 2.3 | 11:04 |
| Mar | 66% | 84% | 3.2 | 11:54 |
| Apr | 63% | 82% | 4.0 | 12:53 |
| May | 62% | 84% | 4.3 | 13:41 |
| Jun | 67% | 85% | 4.2 | 14:07 |
| Jul | 73% | 82% | 4.5 | 13:57 |
| Aug | 77% | 78% | 4.3 | 13:15 |
| Sep | 78% | 87% | 3.0 | 12:18 |
| Oct | 77% | 87% | 2.3 | 11:22 |
| Nov | 76% | 81% | 1.9 | 10:33 |
| Dec | 74% | 80% | 1.7 | 10:10 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Chengdu is like
The warmest month is July, with an average high of 32 °C90 °F and a low of 23 °C73 °F. The coldest is January, when highs average 11 °C51 °F and lows 0 °C32 °F. Seasons are strongly marked: the warmest month is on average 22.4 °C40.3 °F warmer than the coldest.
Annual precipitation is moderate at about 990 mm39 in. The wettest three-month stretch is June–August, which brings 56% of the annual total. Months with less than 20 mm0.8 in on average: December–February. The wettest month is July (224 mm8.8 in), the driest is December (11 mm0.5 in).
Relative humidity ranges from 62% in May to 78% in September. The clearest skies (lowest average cloud amount, 78%) are typical of August. Average wind speed near the ground ranges from 5 km/h (3 mph) in August to 8 km/h (5 mph) in May. Daylight lasts from about 10.2 hours in December to 14.1 hours in June.
Best time to visit Chengdu
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March and April and October: average highs of 20 °C68 °F to 25 °C78 °F with 33 mm1.3 in to 60 mm2.4 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 32 °C90 °F and very wet (224 mm8.8 in).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
Chengdu weather by month
- January11 °C51 °F / 0 °C32 °F
- February14 °C57 °F / 2 °C36 °F
- March20 °C68 °F / 7 °C45 °F
- April25 °C78 °F / 13 °C55 °F
- May29 °C85 °F / 17 °C62 °F
- June32 °C89 °F / 20 °C69 °F
- July32 °C90 °F / 23 °C73 °F
- August31 °C87 °F / 22 °C72 °F
- September27 °C80 °F / 18 °C64 °F
- October22 °C72 °F / 13 °C55 °F
- November17 °C63 °F / 7 °C45 °F
- December11 °C53 °F / 1 °C34 °F
What to pack for Chengdu
- Winter (December–February) — highs 1151 to 14 °C57 °F, lows 032 to 2 °C36 °F, about 13 mm0.5 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2068 to 29 °C85 °F, lows 745 to 17 °C62 °F, about 63 mm2.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3187 to 32 °C90 °F, lows 2069 to 23 °C73 °F, about 185 mm7.3 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1763 to 27 °C80 °F, lows 745 to 18 °C64 °F, about 70 mm2.8 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
How Chengdu compares
Compared with Chongqing, about 269 km to the southeast, Chengdu is on average 1.3 °C2.3 °F cooler and receives 13% less precipitation (990 mm39 in vs 1,142 mm45 in). The difference is largest in August (2.1 °C3.8 °F cooler).
Of the 547 places in China covered by World Climates, Chengdu is the 181st warmest by annual mean temperature and the 258th wettest by annual precipitation. See all of them on the China climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Lubbock (United States, Cfa), Midland (United States, BSk) and San Luis (Argentina, Cwa).
Nearby places
- Deyang 60 km · 18 °C64 °F · 920 mm36 in
- Meishan 73 km · 18 °C64 °F · 1,207 mm48 in
- Ziyang 82 km · 18 °C64 °F · 1,067 mm42 in
- Mianyang 107 km · 18 °C64 °F · 895 mm35 in
- Leshan 126 km · 18 °C65 °F · 1,232 mm49 in
- Yaan 127 km · 17 °C63 °F · 1,325 mm52 in
- Jiangyou 137 km · 17 °C63 °F · 929 mm37 in
- Suining 145 km · 18 °C65 °F · 995 mm39 in
Frequently asked questions
What is the warmest month in Chengdu?
July is the warmest month in Chengdu, with an average high of 32 °C (90 °F) and an average low of 23 °C (73 °F).
What is the coldest month in Chengdu?
January is the coldest month, with an average high of 11 °C (51 °F) and an average low of 0 °C (32 °F).
When does it rain the most in Chengdu?
July is the wettest month with about 224 mm (8.8 in) of precipitation; December is the driest with about 11 mm (0.5 in).
What is the best time to visit Chengdu?
Judging by long-term averages, the most comfortable months are March and April and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.