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Guangzhou, China climate
Cwa Monsoon-influenced humid subtropical
Guangzhou has a seasonal warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is July with an average daily high near 33°C, while the coldest is January averaging around 11°C at night. Precipitation totals about 1942 mm a year and is strongly seasonal — June alone averages 367 mm while December barely receives 30 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 countsGuangzhou climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 20 | 22 | 26 | 30 | 32 | 33 | 33 | 32 | 29 | 25 | 21 |
| Avg temp (°C) | 15 | 16 | 19 | 23 | 27 | 28 | 30 | 30 | 28 | 25 | 21 | 16 |
| Avg low (°C) | 11 | 13 | 15 | 20 | 23 | 25 | 26 | 26 | 24 | 21 | 17 | 12 |
| Precipitation (mm) | 58 | 64 | 82 | 205 | 332 | 367 | 231 | 254 | 214 | 69 | 37 | 30 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 20 | 22 | 26 | 30 | 32 |
| Avg temp (°C) | 15 | 16 | 19 | 23 | 27 | 28 |
| Avg low (°C) | 11 | 13 | 15 | 20 | 23 | 25 |
| Precipitation (mm) | 58 | 64 | 82 | 205 | 332 | 367 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 33 | 32 | 29 | 25 | 21 |
| Avg temp (°C) | 30 | 30 | 28 | 25 | 21 | 16 |
| Avg low (°C) | 26 | 26 | 24 | 21 | 17 | 12 |
| Precipitation (mm) | 231 | 254 | 214 | 69 | 37 | 30 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 9 | 13 | 15 | 17 | 19 | 16 | 16 | 12 | 5 | 5 | 6 |
| Days with high ≥ 32°C (days) | — | — | 0.1 | 0.9 | 7 | 13 | 18 | 18 | 13 | 3 | 0.2 | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | — | — | — | — | — | — | 0.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 9 | 13 | 15 | 17 | 19 |
| Days with high ≥ 32°C (days) | — | — | 0.1 | 0.9 | 7 | 13 |
| Days with low ≤ 0°C (days) | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 16 | 16 | 12 | 5 | 5 | 6 |
| Days with high ≥ 32°C (days) | 18 | 18 | 13 | 3 | 0.2 | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 74 | 81 | 82 | 82 | 83 | 76 | 74 | 62 | 49 | 51 | 51 |
| Clear days (≤ 30% cloud) | 7 | 4 | 2 | 1 | 1 | 1 | 2 | 2 | 6 | 12 | 11 | 11 |
| Partly cloudy days (30–70%) | 7 | 5 | 4 | 5 | 6 | 5 | 8 | 9 | 10 | 9 | 8 | 8 |
| Cloudy days (≥ 70%) | 17 | 19 | 25 | 24 | 24 | 24 | 21 | 19 | 14 | 11 | 11 | 12 |
| Relative humidity (%) | 68 | 72 | 74 | 78 | 82 | 87 | 87 | 86 | 83 | 76 | 70 | 66 |
| Wind speed (m/s) | 2.8 | 2.9 | 3.0 | 2.9 | 2.5 | 2.6 | 2.4 | 2.1 | 2.1 | 2.3 | 2.5 | 2.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 74 | 81 | 82 | 82 | 83 |
| Clear days (≤ 30% cloud) | 7 | 4 | 2 | 1 | 1 | 1 |
| Partly cloudy days (30–70%) | 7 | 5 | 4 | 5 | 6 | 5 |
| Cloudy days (≥ 70%) | 17 | 19 | 25 | 24 | 24 | 24 |
| Relative humidity (%) | 68 | 72 | 74 | 78 | 82 | 87 |
| Wind speed (m/s) | 2.8 | 2.9 | 3.0 | 2.9 | 2.5 | 2.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 74 | 62 | 49 | 51 | 51 |
| Clear days (≤ 30% cloud) | 2 | 2 | 6 | 12 | 11 | 11 |
| Partly cloudy days (30–70%) | 8 | 9 | 10 | 9 | 8 | 8 |
| Cloudy days (≥ 70%) | 21 | 19 | 14 | 11 | 11 | 12 |
| Relative humidity (%) | 87 | 86 | 83 | 76 | 70 | 66 |
| Wind speed (m/s) | 2.4 | 2.1 | 2.1 | 2.3 | 2.5 | 2.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 23 years of daily observations at Guangzhou, a weather station, about 26 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.