Shiwan climate — normals and trends

Q: What is the climate of Shiwan?

Shiwan has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.9 °C and it receives 1,723 mm of precipitation per year.

Q: What is the hottest day ever recorded in Shiwan?

The hottest day measured in Shiwan between 1940 and 2025 was 13 July 1987, reaching 38.7 °C.

Q: What is the coldest day in Shiwan?

The coldest day measured in Shiwan between 1940 and 2025 was 12 January 1955, at 1.3 °C.

Q: Does it snow in Shiwan?

Almost never: Shiwan sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Shiwan warmed?

Yes: Shiwan warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Shiwan?

The wettest day measured in Shiwan between 1940 and 2025 was 17 July 1957, with 192 mm of rain in 24 hours.

Q: What was the windiest day in Shiwan?

The windiest day measured in Shiwan between 1940 and 2025 was 16 September 2018, with winds reaching 67.7 km/h.

Q: What is the warmest month in Shiwan?

The warmest month in Shiwan is July (29.3 °C on average); the coldest is January (14.5 °C).

Q: How much does it rain in Shiwan?

Shiwan receives on average 1,723 mm of precipitation per year, spread over about 170 rainy days.

Q: Is it sunny in Shiwan?

Shiwan gets on average 7.7 hours of sunshine per day, roughly 2,811 hours per year over 1940-2025.

Shiwan (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 22.9 °C and it receives 1,723 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 (29.3 °C on average) and the coldest is January (14.5 °C). Rainfall peaks in May.

Shiwan averages 0 frost days, 134 hot days (≥ 30 °C) and 170 rainy days per year.

Shiwan has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.

The hottest day of the period reached 38.7 °C (on 13 July 1987) and the coldest 1.3 °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

ShiwanGuangdong

coords: 23.00°, 113.08°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthMayDriest monthDecember

Mean daily temperature

22.9°C

Average daily high

26.6°C

Average daily low

20.0°C

Annual rainfall

1,723mm

Sunshine / day

7.7h

Mean relative humidity

76%

Average peak wind

14.9km/h

Seasonal range

14.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

134 d/yr

Rainy days (≥ 1 mm)

170 d/yr

Annual snowfall

0.0 cm

Average feels-like high

29.0 °C

Average feels-like low

21.9 °C

Average peak gust

30.5 km/h

Tropical nights (≥ 20 °C)

207 d/yr

Solar radiation

14.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.55 · p = < 0.001

19402025

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

38.7 °C

13 July 1987

Coldest day

1.3 °C

12 January 1955

Wettest day

192 mm

17 July 1957

Windiest day

67.7 km/h

16 September 2018

Strongest gust

133.6 km/h

16 September 2018

Hottest feels-like

46.9 °C

18 July 2019

Coldest feels-like

-4.9 °C

11 February 1957

Snowiest day

0.1 cm

24 January 2016

Sunniest day

13.0 h

10 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.9 °C9 July 2025	6.8 °C13 January 2025	23.8 °C	1,654 mm	159
2024	37.6 °C5 August 2024	4.0 °C24 January 2024	23.9 °C	2,050 mm	159
2023	37.7 °C15 July 2023	5.9 °C22 December 2023	23.9 °C	1,755 mm	147
2022	38.0 °C25 July 2022	5.8 °C21 February 2022	23.3 °C	1,907 mm	145
2021	36.8 °C27 July 2021	3.9 °C12 January 2021	24.1 °C	1,432 mm	169
2020	37.7 °C24 July 2020	6.2 °C31 December 2020	23.9 °C	1,327 mm	151
2019	37.6 °C18 July 2019	8.6 °C1 January 2019	24.1 °C	1,845 mm	151
2018	36.2 °C30 May 2018	4.7 °C30 January 2018	23.4 °C	1,760 mm	137
2017	38.5 °C22 August 2017	7.4 °C18 December 2017	23.5 °C	1,560 mm	139
2016	37.9 °C9 July 2016	3.1 °C24 January 2016	23.4 °C	2,272 mm	157
2015	37.0 °C8 August 2015	7.7 °C18 December 2015	23.9 °C	1,905 mm	161
2014	37.1 °C23 July 2014	4.2 °C20 February 2014	23.2 °C	1,523 mm	152
2013	36.5 °C21 June 2013	6.6 °C28 December 2013	23.1 °C	1,954 mm	132
2012	37.1 °C21 July 2012	4.8 °C26 January 2012	22.9 °C	1,886 mm	149
2011	36.8 °C28 July 2011	5.2 °C12 January 2011	22.7 °C	1,282 mm	139
2010	37.0 °C5 July 2010	3.6 °C17 December 2010	23.2 °C	1,832 mm	128
2009	37.2 °C18 July 2009	4.5 °C11 January 2009	23.5 °C	1,462 mm	158
2008	37.9 °C28 July 2008	4.8 °C3 February 2008	22.9 °C	1,824 mm	144
2007	36.7 °C14 July 2007	7.3 °C29 January 2007	23.7 °C	1,395 mm	148
2006	37.1 °C14 July 2006	6.0 °C7 January 2006	23.6 °C	1,708 mm	148
2005	38.0 °C19 July 2005	3.9 °C1 January 2005	23.2 °C	1,700 mm	157
2004	38.6 °C1 July 2004	5.0 °C22 January 2004	23.4 °C	1,193 mm	151
2003	37.0 °C15 July 2003	6.4 °C4 January 2003	23.6 °C	1,436 mm	151
2002	36.2 °C13 July 2002	5.0 °C27 December 2002	23.7 °C	1,734 mm	150
2001	36.4 °C8 August 2001	6.3 °C24 December 2001	23.4 °C	1,879 mm	141
2000	36.4 °C5 June 2000	5.7 °C27 January 2000	23.3 °C	1,785 mm	145
1999	37.5 °C24 July 1999	2.6 °C23 December 1999	23.6 °C	1,630 mm	149
1998	36.9 °C31 July 1998	6.1 °C6 February 1998	23.9 °C	1,929 mm	153
1997	37.0 °C30 August 1997	6.6 °C25 January 1997	23.1 °C	2,310 mm	139
1996	36.4 °C26 July 1996	3.8 °C21 February 1996	22.8 °C	1,783 mm	143
1995	36.7 °C23 July 1995	6.3 °C5 January 1995	22.7 °C	1,735 mm	142
1994	37.1 °C2 July 1994	5.7 °C21 January 1994	23.2 °C	1,670 mm	137
1993	35.9 °C29 July 1993	4.0 °C17 January 1993	22.8 °C	1,881 mm	129
1992	36.3 °C29 August 1992	5.7 °C15 January 1992	22.6 °C	2,223 mm	127
1991	36.2 °C19 July 1991	2.1 °C29 December 1991	23.6 °C	1,244 mm	158
1990	38.0 °C17 August 1990	5.1 °C1 February 1990	23.4 °C	1,631 mm	139
1989	37.1 °C16 July 1989	5.3 °C14 January 1989	23.0 °C	1,492 mm	142
1988	37.6 °C9 July 1988	7.2 °C18 February 1988	22.4 °C	1,760 mm	136
1987	38.7 °C13 July 1987	6.0 °C7 December 1987	23.5 °C	1,982 mm	133
1986	37.2 °C31 July 1986	4.1 °C1 March 1986	22.9 °C	1,535 mm	150
1985	36.1 °C22 June 1985	4.6 °C17 December 1985	22.4 °C	1,993 mm	139
1984	36.2 °C26 July 1984	4.7 °C10 January 1984	22.1 °C	1,637 mm	123
1983	36.8 °C8 July 1983	4.4 °C30 December 1983	22.5 °C	2,423 mm	148
1982	38.4 °C29 July 1982	4.7 °C28 December 1982	22.8 °C	2,054 mm	136
1981	36.8 °C21 June 1981	6.0 °C27 February 1981	23.0 °C	1,949 mm	124
1980	37.8 °C10 July 1980	4.1 °C6 February 1980	23.1 °C	1,626 mm	138
1979	36.4 °C29 July 1979	4.6 °C1 February 1979	22.7 °C	1,861 mm	133
1978	36.1 °C15 July 1978	4.9 °C21 January 1978	22.7 °C	2,176 mm	130
1977	36.2 °C24 July 1977	2.7 °C31 January 1977	23.0 °C	1,472 mm	154
1976	36.4 °C26 May 1976	3.3 °C28 December 1976	22.2 °C	1,909 mm	117
1975	35.3 °C29 July 1975	3.5 °C14 December 1975	22.8 °C	2,448 mm	139
1974	36.1 °C20 August 1974	3.2 °C2 January 1974	22.7 °C	1,903 mm	147
1973	35.7 °C23 June 1973	4.9 °C26 December 1973	23.1 °C	2,789 mm	125
1972	36.4 °C11 July 1972	3.4 °C9 February 1972	22.7 °C	2,294 mm	132
1971	36.1 °C15 July 1971	4.7 °C6 January 1971	22.5 °C	1,988 mm	128
1970	36.0 °C6 July 1970	4.7 °C16 January 1970	22.4 °C	1,963 mm	134
1969	36.5 °C27 July 1969	2.8 °C6 February 1969	22.3 °C	1,938 mm	132
1968	36.7 °C28 July 1968	5.3 °C7 February 1968	22.8 °C	1,974 mm	119
1967	36.4 °C17 July 1967	2.2 °C17 January 1967	22.5 °C	1,559 mm	137
1966	34.0 °C17 August 1966	5.1 °C1 January 1966	22.8 °C	1,559 mm	119
1965	34.3 °C14 July 1965	4.0 °C31 December 1965	22.0 °C	2,041 mm	73
1964	36.6 °C7 August 1964	5.2 °C22 February 1964	22.8 °C	1,814 mm	146
1963	36.9 °C31 May 1963	2.4 °C16 January 1963	22.9 °C	1,316 mm	148
1962	36.1 °C1 August 1962	4.5 °C28 January 1962	22.5 °C	1,557 mm	133
1961	37.6 °C1 July 1961	3.4 °C19 January 1961	23.0 °C	2,496 mm	129
1960	37.0 °C21 August 1960	3.8 °C25 January 1960	23.0 °C	1,584 mm	132
1959	36.6 °C29 August 1959	6.0 °C11 January 1959	22.8 °C	2,021 mm	125
1958	36.5 °C16 July 1958	3.4 °C17 January 1958	22.6 °C	1,266 mm	133
1957	36.4 °C14 August 1957	1.3 °C11 February 1957	22.4 °C	2,134 mm	127
1956	36.2 °C3 September 1956	2.7 °C10 January 1956	22.8 °C	912 mm	155
1955	33.6 °C24 August 1955	1.3 °C12 January 1955	22.5 °C	1,121 mm	130
1954	34.8 °C22 July 1954	5.4 °C17 December 1954	22.7 °C	1,139 mm	123
1953	34.5 °C17 August 1953	5.2 °C12 December 1953	22.8 °C	1,360 mm	123
1952	33.2 °C11 July 1952	4.6 °C19 February 1952	23.0 °C	1,561 mm	115
1951	33.0 °C13 August 1951	3.5 °C13 January 1951	22.3 °C	1,672 mm	96
1950	32.9 °C17 July 1950	5.1 °C10 December 1950	22.5 °C	1,757 mm	108
1949	36.8 °C14 June 1949	4.0 °C9 January 1949	23.1 °C	1,152 mm	124
1948	34.0 °C6 July 1948	4.2 °C27 January 1948	22.8 °C	1,352 mm	113
1947	33.4 °C29 August 1947	4.9 °C20 December 1947	22.0 °C	1,503 mm	93
1946	36.3 °C17 July 1946	4.8 °C6 January 1946	23.0 °C	949 mm	144
1945	33.2 °C31 July 1945	4.2 °C17 January 1945	21.3 °C	1,540 mm	86
1944	34.8 °C8 April 1944	2.8 °C21 December 1944	22.2 °C	1,640 mm	81
1943	36.8 °C26 May 1943	4.2 °C12 January 1943	22.6 °C	749 mm	133
1942	32.9 °C15 August 1942	5.4 °C7 December 1942	22.1 °C	1,802 mm	108
1941	33.3 °C29 June 1941	5.5 °C29 December 1941	22.1 °C	1,908 mm	82
1940	34.5 °C31 August 1940	3.0 °C25 January 1940	21.9 °C	1,502 mm	101

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?

Year

Across the whole year

Average daily high

27.8 °C

+1.2 °C

Hot days (≥ 30 °C)

159 d/yr

+25

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1654 mm

-69 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	21.4 °C	+2.9 °C	2 mm	-34 mm
Feb	20.5 °C	+1.0 °C	16 mm	-47 mm
Mar	23.9 °C	+1.0 °C	65 mm	-41 mm
Apr	28.6 °C	+1.8 °C	83 mm	-106 mm
May	29.9 °C	0.0 °C	239 mm	-48 mm
Jun	32.1 °C	+0.5 °C	351 mm	+64 mm
Jul	33.9 °C	+1.1 °C	245 mm	+46 mm
Aug	32.7 °C	+0.3 °C	308 mm	+76 mm
Sep	32.9 °C	+1.6 °C	247 mm	+74 mm
Oct	30.1 °C	+1.6 °C	63 mm	-11 mm
Nov	24.3 °C	-0.2 °C	15 mm	-29 mm
Dec	22.8 °C	+2.7 °C	20 mm	-14 mm

The year's extremes

Hottest day

36.9 °C

9 Jul 2025

Coldest day

6.8 °C

13 Jan 2025

Wettest day

64.9 mm

24 Sep 2025

Windiest day

46.5 km/h

24 Sep 2025

Strongest gust

101.2 km/h

24 Sep 2025

Hottest feels-like

45.1 °C

26 Jul 2025

Coldest feels-like

3.0 °C

12 Jan 2025

Sunniest day

13.0 h

7 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Shiwan?

Shiwan has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.9 °C and it receives 1,723 mm of precipitation per year.

What is the hottest day ever recorded in Shiwan?

The hottest day measured in Shiwan between 1940 and 2025 was 13 July 1987, reaching 38.7 °C.

What is the coldest day in Shiwan?

The coldest day measured in Shiwan between 1940 and 2025 was 12 January 1955, at 1.3 °C.

Does it snow in Shiwan?

Almost never: Shiwan sees virtually no snow, with about 0 frost days per year.

Has the climate of Shiwan warmed?

Yes: Shiwan warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Shiwan?

The wettest day measured in Shiwan between 1940 and 2025 was 17 July 1957, with 192 mm of rain in 24 hours.

What was the windiest day in Shiwan?

The windiest day measured in Shiwan between 1940 and 2025 was 16 September 2018, with winds reaching 67.7 km/h.

What is the warmest month in Shiwan?

The warmest month in Shiwan is July (29.3 °C on average); the coldest is January (14.5 °C).

How much does it rain in Shiwan?

Shiwan receives on average 1,723 mm of precipitation per year, spread over about 170 rainy days.

Is it sunny in Shiwan?

Shiwan gets on average 7.7 hours of sunshine per day, roughly 2,811 hours per year over 1940-2025.

What is the biggest single-day snowfall in Shiwan?

The heaviest 24-hour snowfall measured in Shiwan between 1940 and 2025 was 24 January 2016, with 0.1 cm.

Are there tropical nights in Shiwan?

Yes: Shiwan has on average 207 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Shiwan?

In Shiwan, 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.

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