Shanwei climate — normals and trends
Shanwei (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 22.2 °C and it receives 1,811 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 (27.7 °C on average) and the coldest is January (15.1 °C). Rainfall peaks in June.
Shanwei averages 0 frost days, 25 hot days (≥ 30 °C) and 160 rainy days per year.
Shanwei has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.7 °C (on 29 June 2004) and the coldest 3.2 °C (on 16 January 1967).
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
ShanweiGuangdong
- coords
- 22.78°, 115.35°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.2°C
Average daily high
24.3°C
Average daily low
20.5°C
Annual rainfall
1,811mm
Sunshine / day
8.6h
Mean relative humidity
81%
Average peak wind
19.5km/h
Seasonal range
12.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
25 d/yr
Rainy days (≥ 1 mm)
160 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.6 °C
Average feels-like low
21.5 °C
Average peak gust
33.6 km/h
Tropical nights (≥ 20 °C)
210 d/yr
Solar radiation
15.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.69 · 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
33.7 °C
29 June 2004
Coldest day
3.2 °C
16 January 1967
Wettest day
257 mm
14 October 1975
Windiest day
84.1 km/h
16 September 2018
Strongest gust
144.4 km/h
20 July 1988
Hottest feels-like
42.9 °C
23 August 2022
Coldest feels-like
-4.1 °C
16 January 1967
Snowiest day
0.2 cm
24 January 2016
Sunniest day
13.0 h
12 June 1940
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 | 18.8 °C | +0.9 °C | 5 mm | -22 mm |
| Feb | 18.6 °C | +0.2 °C | 31 mm | -18 mm |
| Mar | 21.3 °C | +0.6 °C | 46 mm | -26 mm |
| Apr | 24.4 °C | +0.8 °C | 49 mm | -72 mm |
| May | 27.4 °C | +0.9 °C | 153 mm | -83 mm |
| Jun | 29.0 °C | +0.9 °C | 286 mm | -43 mm |
| Jul | 30.2 °C | +1.1 °C | 502 mm | +206 mm |
| Aug | 29.6 °C | +0.6 °C | 401 mm | +86 mm |
| Sep | 29.9 °C | +1.3 °C | 403 mm | +182 mm |
| Oct | 28.3 °C | +1.7 °C | 82 mm | +5 mm |
| Nov | 23.8 °C | +0.5 °C | 10 mm | -30 mm |
| Dec | 21.5 °C | +2.0 °C | 8 mm | -21 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 Shanwei?
Shanwei has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 22.2 °C and it receives 1,811 mm of precipitation per year.
What is the hottest day ever recorded in Shanwei?
The hottest day measured in Shanwei between 1940 and 2025 was 29 June 2004, reaching 33.7 °C.
What is the coldest day in Shanwei?
The coldest day measured in Shanwei between 1940 and 2025 was 16 January 1967, at 3.2 °C.
Does it snow in Shanwei?
Almost never: Shanwei sees virtually no snow, with about 0 frost days per year.
Has the climate of Shanwei warmed?
Yes: Shanwei warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Shanwei?
The wettest day measured in Shanwei between 1940 and 2025 was 14 October 1975, with 257 mm of rain in 24 hours.
What was the windiest day in Shanwei?
The windiest day measured in Shanwei between 1940 and 2025 was 16 September 2018, with winds reaching 84.1 km/h.
What is the warmest month in Shanwei?
The warmest month in Shanwei is July (27.7 °C on average); the coldest is January (15.1 °C).
How much does it rain in Shanwei?
Shanwei receives on average 1,811 mm of precipitation per year, spread over about 160 rainy days.
Is it sunny in Shanwei?
Shanwei gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Shanwei?
The heaviest 24-hour snowfall measured in Shanwei between 1940 and 2025 was 24 January 2016, with 0.2 cm.
Are there tropical nights in Shanwei?
Yes: Shanwei has on average 210 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Shanwei?
In Shanwei, between 1940 and 2025, the highest apparent temperature reached 42.9 °C on 23 August 2022, and the lowest was -4.1 °C on 16 January 1967.
Compare Shanwei with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Shanwei