Sanshui climate — normals and trends
Sanshui (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 22.6 °C and it receives 1,947 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 (29.1 °C on average) and the coldest is January (14.1 °C). Rainfall peaks in June.
Sanshui averages 0 frost days, 131 hot days (≥ 30 °C) and 179 rainy days per year.
Sanshui has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.5 °C (on 13 July 1987) and the coldest 0.5 °C (on 12 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
SanshuiGuangdong
- coords
- 23.15°, 112.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.6°C
Average daily high
26.4°C
Average daily low
19.6°C
Annual rainfall
1,947mm
Sunshine / day
7.6h
Mean relative humidity
76%
Average peak wind
13.6km/h
Seasonal range
15.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
131 d/yr
Rainy days (≥ 1 mm)
179 d/yr
Annual snowfall
0.0 cm
Average feels-like high
28.9 °C
Average feels-like low
21.5 °C
Average peak gust
30.5 km/h
Tropical nights (≥ 20 °C)
200 d/yr
Solar radiation
13.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.57 · 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
38.5 °C
13 July 1987
Coldest day
0.5 °C
12 January 1955
Wettest day
217 mm
18 June 1971
Windiest day
57.3 km/h
16 September 2018
Strongest gust
125.6 km/h
16 September 2018
Hottest feels-like
46.9 °C
18 July 2019
Coldest feels-like
-4.9 °C
11 February 1957
Sunniest day
13.0 h
2 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 | 21.4 °C | +3.2 °C | 3 mm | -39 mm |
| Feb | 20.4 °C | +1.3 °C | 16 mm | -54 mm |
| Mar | 23.7 °C | +1.1 °C | 67 mm | -57 mm |
| Apr | 28.6 °C | +2.1 °C | 96 mm | -124 mm |
| May | 29.6 °C | -0.1 °C | 275 mm | -53 mm |
| Jun | 32.0 °C | +0.5 °C | 448 mm | +106 mm |
| Jul | 33.9 °C | +1.1 °C | 251 mm | +18 mm |
| Aug | 32.7 °C | +0.3 °C | 370 mm | +116 mm |
| Sep | 32.8 °C | +1.6 °C | 227 mm | +51 mm |
| Oct | 29.9 °C | +1.6 °C | 63 mm | -13 mm |
| Nov | 24.1 °C | -0.2 °C | 25 mm | -21 mm |
| Dec | 22.6 °C | +2.7 °C | 26 mm | -10 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 Sanshui?
Sanshui has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.6 °C and it receives 1,947 mm of precipitation per year.
What is the hottest day ever recorded in Sanshui?
The hottest day measured in Sanshui between 1940 and 2025 was 13 July 1987, reaching 38.5 °C.
What is the coldest day in Sanshui?
The coldest day measured in Sanshui between 1940 and 2025 was 12 January 1955, at 0.5 °C.
Does it snow in Sanshui?
Almost never: Sanshui sees virtually no snow, with about 0 frost days per year.
Has the climate of Sanshui warmed?
Yes: Sanshui warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sanshui?
The wettest day measured in Sanshui between 1940 and 2025 was 18 June 1971, with 217 mm of rain in 24 hours.
What was the windiest day in Sanshui?
The windiest day measured in Sanshui between 1940 and 2025 was 16 September 2018, with winds reaching 57.3 km/h.
What is the warmest month in Sanshui?
The warmest month in Sanshui is July (29.1 °C on average); the coldest is January (14.1 °C).
How much does it rain in Sanshui?
Sanshui receives on average 1,947 mm of precipitation per year, spread over about 179 rainy days.
Is it sunny in Sanshui?
Sanshui gets on average 7.6 hours of sunshine per day, roughly 2,774 hours per year over 1940-2025.
Are there tropical nights in Sanshui?
Yes: Sanshui has on average 200 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sanshui?
In Sanshui, between 1940 and 2025, the highest apparent temperature reached 46.9 °C on 18 July 2019, and the lowest was -4.9 °C on 11 February 1957.
Compare Sanshui with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sanshui