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Nantong, China climate
Cfa Humid subtropical
Nantong has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 32°C, while the coldest is January averaging around 2°C at night. Precipitation totals about 1223 mm a year and is strongly seasonal — August alone averages 217 mm while December barely receives 45 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 countsNantong climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 8 | 10 | 14 | 20 | 25 | 28 | 32 | 32 | 28 | 23 | 18 | 11 |
| Avg temp (°C) | 5 | 7 | 10 | 16 | 21 | 25 | 29 | 29 | 25 | 20 | 14 | 8 |
| Avg low (°C) | 2 | 4 | 7 | 12 | 17 | 22 | 26 | 26 | 22 | 17 | 11 | 4 |
| Precipitation (mm) | 73 | 64 | 93 | 73 | 84 | 213 | 151 | 217 | 88 | 63 | 57 | 45 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 8 | 10 | 14 | 20 | 25 | 28 |
| Avg temp (°C) | 5 | 7 | 10 | 16 | 21 | 25 |
| Avg low (°C) | 2 | 4 | 7 | 12 | 17 | 22 |
| Precipitation (mm) | 73 | 64 | 93 | 73 | 84 | 213 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 28 | 23 | 18 | 11 |
| Avg temp (°C) | 29 | 29 | 25 | 20 | 14 | 8 |
| Avg low (°C) | 26 | 26 | 22 | 17 | 11 | 4 |
| Precipitation (mm) | 151 | 217 | 88 | 63 | 57 | 45 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 10 | 12 | 11 | 11 | 14 | 11 | 12 | 10 | 7 | 9 | 8 |
| Days with high ≥ 32°C (days) | — | — | — | 0.3 | 1 | 4 | 15 | 11 | 2 | 0.0 | — | — |
| Days with low ≤ 0°C (days) | 9 | 5 | 0.7 | — | — | — | — | — | — | — | 0.2 | 5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 10 | 12 | 11 | 11 | 14 |
| Days with high ≥ 32°C (days) | — | — | — | 0.3 | 1 | 4 |
| Days with low ≤ 0°C (days) | 9 | 5 | 0.7 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 12 | 10 | 7 | 9 | 8 |
| Days with high ≥ 32°C (days) | 15 | 11 | 2 | 0.0 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.2 | 5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 65 | 67 | 66 | 70 | 79 | 69 | 62 | 63 | 58 | 57 | 54 |
| Clear days (≤ 30% cloud) | 7 | 6 | 6 | 5 | 4 | 2 | 5 | 6 | 5 | 8 | 8 | 10 |
| Partly cloudy days (30–70%) | 9 | 8 | 8 | 9 | 8 | 6 | 7 | 10 | 11 | 10 | 9 | 10 |
| Cloudy days (≥ 70%) | 15 | 15 | 17 | 16 | 19 | 22 | 18 | 15 | 14 | 13 | 12 | 12 |
| Relative humidity (%) | 77 | 78 | 78 | 77 | 76 | 81 | 82 | 81 | 78 | 75 | 76 | 76 |
| Wind speed (mph) | 8.5 | 8.6 | 9.0 | 8.8 | 8.7 | 8.2 | 8.2 | 8.8 | 8.7 | 8.3 | 8.3 | 8.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 65 | 67 | 66 | 70 | 79 |
| Clear days (≤ 30% cloud) | 7 | 6 | 6 | 5 | 4 | 2 |
| Partly cloudy days (30–70%) | 9 | 8 | 8 | 9 | 8 | 6 |
| Cloudy days (≥ 70%) | 15 | 15 | 17 | 16 | 19 | 22 |
| Relative humidity (%) | 77 | 78 | 78 | 77 | 76 | 81 |
| Wind speed (mph) | 8.5 | 8.6 | 9.0 | 8.8 | 8.7 | 8.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 62 | 63 | 58 | 57 | 54 |
| Clear days (≤ 30% cloud) | 5 | 6 | 5 | 8 | 8 | 10 |
| Partly cloudy days (30–70%) | 7 | 10 | 11 | 10 | 9 | 10 |
| Cloudy days (≥ 70%) | 18 | 15 | 14 | 13 | 12 | 12 |
| Relative humidity (%) | 82 | 81 | 78 | 75 | 76 | 76 |
| Wind speed (mph) | 8.2 | 8.8 | 8.7 | 8.3 | 8.3 | 8.6 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Shanghai, a weather station, about 90 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.