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Chengdu, China climate
Cwa Monsoon-influenced humid subtropical
Chengdu has a seasonal mild-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is July with an average daily high near 30°C, while the coldest is January averaging around 3°C at night. Precipitation totals about 795 mm a year and is strongly seasonal — August alone averages 211 mm while December barely receives 6 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsChengdu climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 12 | 16 | 22 | 26 | 28 | 30 | 30 | 26 | 21 | 16 | 11 |
| Avg temp (°C) | 6 | 9 | 13 | 18 | 22 | 25 | 26 | 26 | 23 | 18 | 13 | 8 |
| Avg low (°C) | 3 | 6 | 9 | 14 | 18 | 21 | 23 | 22 | 19 | 15 | 10 | 5 |
| Precipitation (mm) | 7 | 12 | 19 | 44 | 60 | 114 | 179 | 211 | 94 | 36 | 14 | 6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 12 | 16 | 22 | 26 | 28 |
| Avg temp (°C) | 6 | 9 | 13 | 18 | 22 | 25 |
| Avg low (°C) | 3 | 6 | 9 | 14 | 18 | 21 |
| Precipitation (mm) | 7 | 12 | 19 | 44 | 60 | 114 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 26 | 21 | 16 | 11 |
| Avg temp (°C) | 26 | 26 | 23 | 18 | 13 | 8 |
| Avg low (°C) | 23 | 22 | 19 | 15 | 10 | 5 |
| Precipitation (mm) | 179 | 211 | 94 | 36 | 14 | 6 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 3 | 4 | 5 | 5 | 6 | 7 | 6 | 5 | 5 | 2 | 2 |
| Days with high ≥ 32°C (days) | — | — | — | 0.1 | 0.8 | 1 | 4 | 4 | 1 | — | — | — |
| Days with low ≤ 0°C (days) | 1 | 0.3 | — | — | — | — | — | — | — | — | — | 0.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 3 | 4 | 5 | 5 | 6 |
| Days with high ≥ 32°C (days) | — | — | — | 0.1 | 0.8 | 1 |
| Days with low ≤ 0°C (days) | 1 | 0.3 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 6 | 5 | 5 | 2 | 2 |
| Days with high ≥ 32°C (days) | 4 | 4 | 1 | — | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 82 | 84 | 82 | 84 | 85 | 81 | 77 | 85 | 87 | 78 | 77 |
| Clear days (≤ 30% cloud) | 3 | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 3 | 3 |
| Partly cloudy days (30–70%) | 6 | 5 | 5 | 5 | 5 | 4 | 7 | 8 | 4 | 4 | 6 | 6 |
| Cloudy days (≥ 70%) | 22 | 22 | 25 | 23 | 25 | 25 | 23 | 21 | 25 | 26 | 22 | 22 |
| Relative humidity (%) | 75 | 73 | 68 | 65 | 64 | 68 | 75 | 79 | 80 | 80 | 77 | 76 |
| Wind speed (mph) | 3.4 | 3.7 | 4.0 | 4.1 | 4.0 | 3.6 | 3.1 | 3.0 | 3.0 | 3.0 | 3.1 | 3.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 82 | 84 | 82 | 84 | 85 |
| Clear days (≤ 30% cloud) | 3 | 1 | 1 | 2 | 1 | 1 |
| Partly cloudy days (30–70%) | 6 | 5 | 5 | 5 | 5 | 4 |
| Cloudy days (≥ 70%) | 22 | 22 | 25 | 23 | 25 | 25 |
| Relative humidity (%) | 75 | 73 | 68 | 65 | 64 | 68 |
| Wind speed (mph) | 3.4 | 3.7 | 4.0 | 4.1 | 4.0 | 3.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 77 | 85 | 87 | 78 | 77 |
| Clear days (≤ 30% cloud) | 1 | 2 | 2 | 1 | 3 | 3 |
| Partly cloudy days (30–70%) | 7 | 8 | 4 | 4 | 6 | 6 |
| Cloudy days (≥ 70%) | 23 | 21 | 25 | 26 | 22 | 22 |
| Relative humidity (%) | 75 | 79 | 80 | 80 | 77 | 76 |
| Wind speed (mph) | 3.1 | 3.0 | 3.0 | 3.0 | 3.1 | 3.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 13 years of daily observations at Chengdu, a weather station, about 5 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.