Jieyang climate — normals and trends
Jieyang (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 21.8 °C and it receives 1,449 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 July (28.1 °C on average) and the coldest is January (13.8 °C). Rainfall peaks in June.
Jieyang averages 0 frost days, 111 hot days (≥ 30 °C) and 153 rainy days per year.
Jieyang has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.8 °C (on 2 July 2004) and the coldest -1.3 °C (on 11 January 1955).
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
JieyangGuangdong
- coords
- 23.54°, 116.37°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
21.8°C
Average daily high
26.1°C
Average daily low
18.5°C
Annual rainfall
1,449mm
Sunshine / day
8.0h
Mean relative humidity
78%
Average peak wind
12.0km/h
Seasonal range
14.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
111 d/yr
Rainy days (≥ 1 mm)
153 d/yr
Annual snowfall
0.0 cm
Average feels-like high
28.6 °C
Average feels-like low
20.6 °C
Average peak gust
29.0 km/h
Tropical nights (≥ 20 °C)
179 d/yr
Solar radiation
14.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.71 · 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
40.8 °C
2 July 2004
Coldest day
-1.3 °C
11 January 1955
Wettest day
248 mm
14 September 1970
Windiest day
62.5 km/h
22 September 2013
Strongest gust
148.3 km/h
19 July 1988
Hottest feels-like
46.7 °C
4 August 2024
Coldest feels-like
-5.8 °C
11 January 1955
Snowiest day
0.4 cm
24 January 2016
Sunniest day
13.1 h
20 June 1946
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 | 21.0 °C | +2.2 °C | 5 mm | -22 mm |
| Feb | 20.2 °C | +0.7 °C | 51 mm | +4 mm |
| Mar | 24.3 °C | +1.8 °C | 70 mm | +3 mm |
| Apr | 28.4 °C | +2.4 °C | 82 mm | -26 mm |
| May | 29.9 °C | +1.1 °C | 164 mm | -33 mm |
| Jun | 32.1 °C | +1.7 °C | 187 mm | -65 mm |
| Jul | 33.0 °C | +1.1 °C | 385 mm | +177 mm |
| Aug | 32.1 °C | +0.6 °C | 307 mm | +65 mm |
| Sep | 32.2 °C | +1.7 °C | 306 mm | +132 mm |
| Oct | 30.0 °C | +2.0 °C | 51 mm | -7 mm |
| Nov | 25.1 °C | +0.4 °C | 19 mm | -21 mm |
| Dec | 23.5 °C | +3.0 °C | 15 mm | -14 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 Jieyang?
Jieyang has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.8 °C and it receives 1,449 mm of precipitation per year.
What is the hottest day ever recorded in Jieyang?
The hottest day measured in Jieyang between 1940 and 2025 was 2 July 2004, reaching 40.8 °C.
What is the coldest day in Jieyang?
The coldest day measured in Jieyang between 1940 and 2025 was 11 January 1955, at -1.3 °C.
Does it snow in Jieyang?
Almost never: Jieyang sees virtually no snow, with about 0 frost days per year.
Has the climate of Jieyang warmed?
Yes: Jieyang warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jieyang?
The wettest day measured in Jieyang between 1940 and 2025 was 14 September 1970, with 248 mm of rain in 24 hours.
What was the windiest day in Jieyang?
The windiest day measured in Jieyang between 1940 and 2025 was 22 September 2013, with winds reaching 62.5 km/h.
What is the warmest month in Jieyang?
The warmest month in Jieyang is July (28.1 °C on average); the coldest is January (13.8 °C).
How much does it rain in Jieyang?
Jieyang receives on average 1,449 mm of precipitation per year, spread over about 153 rainy days.
Is it sunny in Jieyang?
Jieyang gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Jieyang?
The heaviest 24-hour snowfall measured in Jieyang between 1940 and 2025 was 24 January 2016, with 0.4 cm.
Are there tropical nights in Jieyang?
Yes: Jieyang has on average 179 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jieyang?
In Jieyang, between 1940 and 2025, the highest apparent temperature reached 46.7 °C on 4 August 2024, and the lowest was -5.8 °C on 11 January 1955.
Compare Jieyang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jieyang