Guangtong climate — normals and trends
Guangtong (China) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 16.2 °C and it receives 1,159 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is June (20.7 °C on average) and the coldest is January (9.5 °C). Rainfall peaks in July.
Guangtong averages 2 frost days, 8 hot days (≥ 30 °C) and 155 rainy days per year.
Guangtong has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.7 °C (on 1 June 2023) and the coldest -8.5 °C (on 28 December 1982).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
GuangtongYunnan
- coords
- 25.17°, 101.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.2°C
Average daily high
21.7°C
Average daily low
11.6°C
Annual rainfall
1,159mm
Sunshine / day
9.5h
Mean relative humidity
68%
Average peak wind
15.6km/h
Seasonal range
11.2°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
155 d/yr
Annual snowfall
2.7 cm
Average feels-like high
20.4 °C
Average feels-like low
10.7 °C
Average peak gust
41.3 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.76 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
35.7 °C
1 June 2023
Coldest day
-8.5 °C
28 December 1982
Wettest day
82 mm
21 June 1977
Windiest day
34.3 km/h
19 April 1969
Strongest gust
87.8 km/h
9 February 1962
Hottest feels-like
34.7 °C
18 August 2016
Coldest feels-like
-12.6 °C
28 December 1982
Snowiest day
27.2 cm
28 December 1983
Sunniest day
13.3 h
12 June 2013
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 16.5 °C | +0.2 °C | 25 mm | +5 mm |
| Feb | 20.3 °C | +1.5 °C | 9 mm | -9 mm |
| Mar | 22.6 °C | +0.3 °C | 21 mm | -3 mm |
| Apr | 26.6 °C | +1.5 °C | 41 mm | +1 mm |
| May | 25.3 °C | -0.7 °C | 180 mm | +81 mm |
| Jun | 25.5 °C | +0.5 °C | 246 mm | +29 mm |
| Jul | 26.0 °C | +1.6 °C | 282 mm | +46 mm |
| Aug | 24.9 °C | +0.6 °C | 211 mm | +1 mm |
| Sep | 24.6 °C | +1.4 °C | 191 mm | +45 mm |
| Oct | 22.3 °C | +1.4 °C | 137 mm | +41 mm |
| Nov | 17.5 °C | -0.9 °C | 104 mm | +68 mm |
| Dec | 17.4 °C | +1.5 °C | 5 mm | -12 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Guangtong?
Guangtong has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 16.2 °C and it receives 1,159 mm of precipitation per year.
What is the hottest day ever recorded in Guangtong?
The hottest day measured in Guangtong between 1940 and 2025 was 1 June 2023, reaching 35.7 °C.
What is the coldest day in Guangtong?
The coldest day measured in Guangtong between 1940 and 2025 was 28 December 1982, at -8.5 °C.
Does it snow in Guangtong?
Yes. Guangtong gets on average 2.7 cm of snow per year and has around 2 frost days.
Has the climate of Guangtong warmed?
Yes: Guangtong warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Guangtong?
The wettest day measured in Guangtong between 1940 and 2025 was 21 June 1977, with 82 mm of rain in 24 hours.
What was the windiest day in Guangtong?
The windiest day measured in Guangtong between 1940 and 2025 was 19 April 1969, with winds reaching 34.3 km/h.
What is the warmest month in Guangtong?
The warmest month in Guangtong is June (20.7 °C on average); the coldest is January (9.5 °C).
How much does it rain in Guangtong?
Guangtong receives on average 1,159 mm of precipitation per year, spread over about 155 rainy days.
Is it sunny in Guangtong?
Guangtong gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
What is the biggest single-day snowfall in Guangtong?
The heaviest 24-hour snowfall measured in Guangtong between 1940 and 2025 was 28 December 1983, with 27.2 cm.
Are there tropical nights in Guangtong?
Yes: Guangtong has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Guangtong?
In Guangtong, between 1940 and 2025, the highest apparent temperature reached 34.7 °C on 18 August 2016, and the lowest was -12.6 °C on 28 December 1982.
Compare Guangtong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Guangtong