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Nanchang, China climate
Cfa Humid subtropical
Nanchang has a seasonal warm-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 34°C, while the coldest is January averaging around 3°C at night. Precipitation totals about 1757 mm a year and is strongly seasonal — June alone averages 344 mm while October barely receives 50 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 countsNanchang climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 12 | 16 | 22 | 27 | 30 | 34 | 33 | 29 | 25 | 18 | 12 |
| Avg temp (°C) | 6 | 9 | 13 | 19 | 24 | 27 | 30 | 29 | 26 | 21 | 15 | 9 |
| Avg low (°C) | 3 | 6 | 9 | 15 | 20 | 23 | 26 | 26 | 22 | 17 | 11 | 5 |
| Precipitation (mm) | 92 | 101 | 199 | 216 | 241 | 344 | 165 | 130 | 64 | 50 | 97 | 59 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 12 | 16 | 22 | 27 | 30 |
| Avg temp (°C) | 6 | 9 | 13 | 19 | 24 | 27 |
| Avg low (°C) | 3 | 6 | 9 | 15 | 20 | 23 |
| Precipitation (mm) | 92 | 101 | 199 | 216 | 241 | 344 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 33 | 29 | 25 | 18 | 12 |
| Avg temp (°C) | 30 | 29 | 26 | 21 | 15 | 9 |
| Avg low (°C) | 26 | 26 | 22 | 17 | 11 | 5 |
| Precipitation (mm) | 165 | 130 | 64 | 50 | 97 | 59 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 13 | 17 | 16 | 16 | 16 | 11 | 10 | 7 | 7 | 9 | 9 |
| Days with high ≥ 32°C (days) | — | — | 0.0 | 0.4 | 3 | 7 | 19 | 17 | 6 | 0.6 | — | — |
| Days with low ≤ 0°C (days) | 5 | 2 | 0.1 | — | — | — | — | — | — | — | 0.1 | 2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 13 | 17 | 16 | 16 | 16 |
| Days with high ≥ 32°C (days) | — | — | 0.0 | 0.4 | 3 | 7 |
| Days with low ≤ 0°C (days) | 5 | 2 | 0.1 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 10 | 7 | 7 | 9 | 9 |
| Days with high ≥ 32°C (days) | 19 | 17 | 6 | 0.6 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.1 | 2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 74 | 78 | 77 | 77 | 81 | 72 | 68 | 62 | 58 | 59 | 58 |
| Clear days (≤ 30% cloud) | 6 | 4 | 3 | 3 | 3 | 2 | 3 | 4 | 8 | 10 | 10 | 10 |
| Partly cloudy days (30–70%) | 5 | 6 | 5 | 6 | 6 | 5 | 9 | 11 | 8 | 7 | 5 | 7 |
| Cloudy days (≥ 70%) | 20 | 19 | 23 | 21 | 22 | 23 | 19 | 16 | 14 | 15 | 15 | 15 |
| Relative humidity (%) | 76 | 77 | 79 | 80 | 80 | 84 | 84 | 83 | 78 | 73 | 74 | 73 |
| Wind speed (km/h) | 8.5 | 9.0 | 8.9 | 8.6 | 7.7 | 7.5 | 7.5 | 7.1 | 8.2 | 8.9 | 8.3 | 8.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 74 | 78 | 77 | 77 | 81 |
| Clear days (≤ 30% cloud) | 6 | 4 | 3 | 3 | 3 | 2 |
| Partly cloudy days (30–70%) | 5 | 6 | 5 | 6 | 6 | 5 |
| Cloudy days (≥ 70%) | 20 | 19 | 23 | 21 | 22 | 23 |
| Relative humidity (%) | 76 | 77 | 79 | 80 | 80 | 84 |
| Wind speed (km/h) | 8.5 | 9.0 | 8.9 | 8.6 | 7.7 | 7.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 68 | 62 | 58 | 59 | 58 |
| Clear days (≤ 30% cloud) | 3 | 4 | 8 | 10 | 10 | 10 |
| Partly cloudy days (30–70%) | 9 | 11 | 8 | 7 | 5 | 7 |
| Cloudy days (≥ 70%) | 19 | 16 | 14 | 15 | 15 | 15 |
| Relative humidity (%) | 84 | 83 | 78 | 73 | 74 | 73 |
| Wind speed (km/h) | 7.5 | 7.1 | 8.2 | 8.9 | 8.3 | 8.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Nanchang, a weather station, about 11 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.