San Tung Chung Hang climate — normals and trends

Q: What is the climate of San Tung Chung Hang?

San Tung Chung Hang has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.0 °C and it receives 1,633 mm of precipitation per year.

Q: What is the hottest day ever recorded in San Tung Chung Hang?

The hottest day measured in San Tung Chung Hang between 1940 and 2025 was 22 August 2017, reaching 35.3 °C.

Q: What is the coldest day in San Tung Chung Hang?

The coldest day measured in San Tung Chung Hang between 1940 and 2025 was 11 February 1957, at 3.1 °C.

Q: Does it snow in San Tung Chung Hang?

Almost never: San Tung Chung Hang sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of San Tung Chung Hang warmed?

Yes: San Tung Chung Hang warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in San Tung Chung Hang?

The wettest day measured in San Tung Chung Hang between 1940 and 2025 was 3 August 1970, with 247 mm of rain in 24 hours.

Q: What was the windiest day in San Tung Chung Hang?

The windiest day measured in San Tung Chung Hang between 1940 and 2025 was 16 September 2018, with winds reaching 80.7 km/h.

Q: What is the warmest month in San Tung Chung Hang?

The warmest month in San Tung Chung Hang is July (28.3 °C on average); the coldest is January (15.9 °C).

Q: How much does it rain in San Tung Chung Hang?

San Tung Chung Hang receives on average 1,633 mm of precipitation per year, spread over about 155 rainy days.

Q: Is it sunny in San Tung Chung Hang?

San Tung Chung Hang gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

San Tung Chung Hang (Hong Kong) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 23.0 °C and it receives 1,633 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 (28.3 °C on average) and the coldest is January (15.9 °C). Rainfall peaks in June.

San Tung Chung Hang averages 0 frost days, 63 hot days (≥ 30 °C) and 155 rainy days per year.

San Tung Chung Hang has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.3 °C (on 22 August 2017) and the coldest 3.1 °C (on 11 February 1957).

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

San Tung Chung HangIslands

coords: 22.28°, 113.94°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJulyColdest monthJanuaryWettest monthJuneDriest monthJanuary

Mean daily temperature

23.0°C

Average daily high

25.2°C

Average daily low

21.2°C

Annual rainfall

1,633mm

Sunshine / day

9.1h

Mean relative humidity

79%

Average peak wind

20.1km/h

Seasonal range

12.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

63 d/yr

Rainy days (≥ 1 mm)

155 d/yr

Annual snowfall

0.0 cm

Average feels-like high

27.7 °C

Average feels-like low

22.3 °C

Average peak gust

39.4 km/h

Tropical nights (≥ 20 °C)

226 d/yr

Solar radiation

16.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.61 · 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

35.3 °C

22 August 2017

Coldest day

3.1 °C

11 February 1957

Wettest day

247 mm

3 August 1970

Windiest day

80.7 km/h

16 September 2018

Strongest gust

182.9 km/h

16 September 2018

Hottest feels-like

43.6 °C

22 August 2017

Coldest feels-like

-4.2 °C

16 January 1967

Snowiest day

0.1 cm

24 January 2016

Sunniest day

13.0 h

9 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.4 °C6 September 2025	10.0 °C9 February 2025	23.6 °C	1,728 mm	99
2024	34.4 °C5 August 2024	5.6 °C23 January 2024	24.1 °C	1,904 mm	101
2023	34.9 °C15 July 2023	7.8 °C22 December 2023	24.0 °C	1,971 mm	101
2022	35.2 °C25 July 2022	7.8 °C21 February 2022	23.5 °C	1,701 mm	88
2021	33.8 °C27 July 2021	7.4 °C8 January 2021	24.1 °C	1,797 mm	119
2020	33.6 °C25 July 2020	7.3 °C31 December 2020	23.9 °C	1,438 mm	94
2019	34.2 °C18 July 2019	9.8 °C1 January 2019	24.3 °C	1,637 mm	94
2018	34.4 °C29 May 2018	6.5 °C1 February 2018	23.5 °C	1,761 mm	87
2017	35.3 °C22 August 2017	9.5 °C10 February 2017	23.7 °C	1,693 mm	103
2016	34.1 °C9 July 2016	3.9 °C25 January 2016	23.4 °C	2,257 mm	89
2015	35.1 °C8 August 2015	10.0 °C15 January 2015	23.9 °C	1,468 mm	97
2014	33.6 °C1 August 2014	6.3 °C11 February 2014	23.4 °C	1,322 mm	106
2013	32.6 °C13 July 2013	7.9 °C28 December 2013	23.2 °C	1,934 mm	69
2012	34.2 °C2 August 2012	6.4 °C31 December 2012	23.3 °C	1,653 mm	76
2011	34.2 °C31 August 2011	5.7 °C12 January 2011	22.9 °C	1,143 mm	95
2010	33.2 °C5 August 2010	5.6 °C17 December 2010	23.3 °C	1,654 mm	78
2009	33.7 °C18 July 2009	9.0 °C24 January 2009	23.4 °C	1,534 mm	86
2008	34.4 °C28 July 2008	7.2 °C3 February 2008	23.1 °C	1,884 mm	60
2007	32.8 °C3 August 2007	10.1 °C8 January 2007	23.6 °C	1,293 mm	87
2006	33.8 °C25 July 2006	7.1 °C7 January 2006	23.7 °C	1,602 mm	66
2005	35.0 °C19 July 2005	5.3 °C1 January 2005	23.2 °C	1,674 mm	65
2004	34.9 °C29 June 2004	7.0 °C21 January 2004	23.5 °C	1,143 mm	83
2003	32.9 °C23 July 2003	8.3 °C6 January 2003	23.6 °C	1,432 mm	88
2002	32.9 °C5 July 2002	6.1 °C27 December 2002	23.8 °C	1,401 mm	76
2001	33.3 °C19 September 2001	7.6 °C22 December 2001	23.7 °C	1,854 mm	69
2000	34.4 °C5 June 2000	6.4 °C27 January 2000	23.4 °C	1,535 mm	86
1999	33.9 °C20 August 1999	4.9 °C23 December 1999	23.6 °C	1,625 mm	81
1998	32.9 °C2 August 1998	8.7 °C19 January 1998	23.8 °C	1,726 mm	86
1997	33.6 °C19 August 1997	7.6 °C25 January 1997	23.2 °C	2,205 mm	49
1996	33.7 °C26 July 1996	6.0 °C21 February 1996	22.9 °C	1,667 mm	73
1995	32.8 °C23 July 1995	9.0 °C5 January 1995	22.9 °C	1,617 mm	66
1994	33.2 °C10 July 1994	6.7 °C21 January 1994	23.4 °C	1,825 mm	53
1993	32.5 °C13 September 1993	5.4 °C16 January 1993	22.9 °C	1,748 mm	79
1992	33.4 °C31 August 1992	7.3 °C15 January 1992	22.8 °C	1,776 mm	69
1991	33.3 °C3 June 1991	3.9 °C28 December 1991	23.5 °C	1,372 mm	89
1990	34.9 °C17 August 1990	5.9 °C1 February 1990	23.1 °C	1,767 mm	75
1989	33.5 °C16 July 1989	6.5 °C14 January 1989	22.8 °C	1,447 mm	69
1988	33.4 °C18 July 1988	8.7 °C18 February 1988	22.8 °C	1,548 mm	83
1987	33.0 °C13 July 1987	7.7 °C7 December 1987	23.5 °C	1,542 mm	67
1986	33.2 °C28 August 1986	5.0 °C1 March 1986	22.7 °C	1,896 mm	65
1985	32.2 °C22 June 1985	8.3 °C10 January 1985	22.5 °C	1,998 mm	43
1984	32.7 °C29 August 1984	5.8 °C7 February 1984	22.2 °C	1,623 mm	50
1983	32.6 °C11 July 1983	4.8 °C30 December 1983	22.5 °C	2,205 mm	79
1982	34.6 °C29 July 1982	8.4 °C27 December 1982	22.9 °C	1,762 mm	64
1981	32.3 °C13 August 1981	8.7 °C20 December 1981	23.0 °C	1,617 mm	56
1980	34.7 °C10 July 1980	5.2 °C31 January 1980	23.0 °C	1,344 mm	78
1979	32.9 °C28 July 1979	5.2 °C1 February 1979	22.8 °C	1,720 mm	51
1978	32.8 °C24 August 1978	6.5 °C18 January 1978	22.7 °C	2,281 mm	63
1977	32.5 °C20 August 1977	5.0 °C5 January 1977	23.0 °C	1,465 mm	79
1976	33.2 °C23 August 1976	4.9 °C28 December 1976	22.3 °C	1,911 mm	57
1975	32.0 °C22 September 1975	4.8 °C14 December 1975	22.8 °C	2,357 mm	52
1974	32.6 °C11 August 1974	4.5 °C26 February 1974	22.6 °C	1,960 mm	66
1973	31.8 °C2 July 1973	7.2 °C25 December 1973	23.2 °C	2,666 mm	48
1972	32.2 °C10 July 1972	4.7 °C9 February 1972	22.7 °C	2,418 mm	57
1971	32.7 °C21 July 1971	6.1 °C30 January 1971	22.5 °C	1,743 mm	62
1970	32.2 °C31 July 1970	6.7 °C16 January 1970	22.6 °C	2,373 mm	62
1969	33.4 °C27 July 1969	3.4 °C5 February 1969	22.6 °C	1,414 mm	74
1968	33.4 °C25 July 1968	6.4 °C8 February 1968	22.8 °C	1,842 mm	50
1967	32.5 °C17 July 1967	3.8 °C16 January 1967	22.6 °C	1,460 mm	67
1966	31.7 °C22 September 1966	6.7 °C23 February 1966	23.2 °C	1,435 mm	34
1965	31.4 °C13 July 1965	6.7 °C18 December 1965	22.5 °C	1,691 mm	14
1964	33.9 °C7 August 1964	6.6 °C26 February 1964	22.8 °C	1,877 mm	59
1963	33.5 °C5 September 1963	7.0 °C8 January 1963	23.0 °C	1,141 mm	78
1962	32.8 °C2 August 1962	5.7 °C2 January 1962	22.8 °C	1,254 mm	78
1961	33.3 °C1 July 1961	7.9 °C17 January 1961	23.0 °C	2,112 mm	56
1960	33.7 °C21 August 1960	5.4 °C25 January 1960	23.1 °C	1,627 mm	51
1959	33.0 °C29 August 1959	7.1 °C11 January 1959	23.0 °C	1,641 mm	53
1958	33.9 °C16 July 1958	6.1 °C16 January 1958	22.7 °C	1,441 mm	56
1957	32.4 °C11 August 1957	3.1 °C11 February 1957	22.5 °C	1,742 mm	53
1956	33.5 °C1 August 1956	4.9 °C9 January 1956	22.7 °C	1,010 mm	69
1955	30.9 °C23 August 1955	3.5 °C11 January 1955	22.5 °C	1,097 mm	17
1954	31.9 °C25 September 1954	7.3 °C12 December 1954	22.7 °C	1,205 mm	65
1953	32.8 °C12 August 1953	8.4 °C11 December 1953	22.8 °C	1,273 mm	42
1952	31.2 °C1 September 1952	5.7 °C19 February 1952	23.2 °C	1,335 mm	28
1951	31.1 °C8 May 1951	4.9 °C14 January 1951	22.6 °C	1,508 mm	12
1950	30.8 °C17 July 1950	7.7 °C17 December 1950	22.6 °C	1,882 mm	9
1949	31.2 °C5 June 1949	6.3 °C9 January 1949	22.8 °C	1,181 mm	30
1948	31.4 °C21 August 1948	6.4 °C26 January 1948	22.7 °C	1,378 mm	22
1947	31.2 °C29 August 1947	6.8 °C20 December 1947	22.1 °C	1,343 mm	3
1946	33.6 °C17 July 1946	8.3 °C6 January 1946	23.2 °C	832 mm	61
1945	31.6 °C2 September 1945	6.1 °C4 February 1945	22.0 °C	1,589 mm	14
1944	31.1 °C10 August 1944	5.9 °C19 December 1944	22.2 °C	1,683 mm	6
1943	31.6 °C9 June 1943	6.3 °C12 January 1943	22.5 °C	567 mm	14
1942	30.8 °C18 August 1942	7.6 °C13 February 1942	22.4 °C	1,406 mm	18
1941	30.5 °C8 August 1941	7.1 °C29 December 1941	22.3 °C	1,577 mm	6
1940	32.2 °C31 August 1940	5.0 °C24 January 1940	22.0 °C	1,295 mm	12

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

26.1 °C

+0.9 °C

Hot days (≥ 30 °C)

99 d/yr

+36

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1728 mm

+95 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	19.4 °C	+0.9 °C	9 mm	-10 mm
Feb	19.4 °C	+0.3 °C	11 mm	-27 mm
Mar	22.3 °C	+0.5 °C	50 mm	-9 mm
Apr	25.7 °C	+0.7 °C	45 mm	-59 mm
May	28.6 °C	+0.7 °C	171 mm	-51 mm
Jun	29.9 °C	+0.6 °C	257 mm	-33 mm
Jul	31.2 °C	+1.0 °C	323 mm	+84 mm
Aug	30.2 °C	+0.2 °C	317 mm	+29 mm
Sep	30.6 °C	+1.2 °C	438 mm	+216 mm
Oct	28.6 °C	+1.3 °C	91 mm	+1 mm
Nov	24.2 °C	+0.3 °C	6 mm	-34 mm
Dec	22.4 °C	+2.4 °C	12 mm	-14 mm

The year's extremes

Hottest day

33.4 °C

6 Sep 2025

Coldest day

10.0 °C

9 Feb 2025

Wettest day

162.8 mm

24 Sep 2025

Windiest day

80.3 km/h

24 Sep 2025

Strongest gust

167.4 km/h

24 Sep 2025

Hottest feels-like

41.9 °C

17 Jul 2025

Coldest feels-like

4.4 °C

27 Jan 2025

Sunniest day

13.0 h

6 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 San Tung Chung Hang?

San Tung Chung Hang has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.0 °C and it receives 1,633 mm of precipitation per year.

What is the hottest day ever recorded in San Tung Chung Hang?

The hottest day measured in San Tung Chung Hang between 1940 and 2025 was 22 August 2017, reaching 35.3 °C.

What is the coldest day in San Tung Chung Hang?

The coldest day measured in San Tung Chung Hang between 1940 and 2025 was 11 February 1957, at 3.1 °C.

Does it snow in San Tung Chung Hang?

Almost never: San Tung Chung Hang sees virtually no snow, with about 0 frost days per year.

Has the climate of San Tung Chung Hang warmed?

Yes: San Tung Chung Hang warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in San Tung Chung Hang?

The wettest day measured in San Tung Chung Hang between 1940 and 2025 was 3 August 1970, with 247 mm of rain in 24 hours.

What was the windiest day in San Tung Chung Hang?

The windiest day measured in San Tung Chung Hang between 1940 and 2025 was 16 September 2018, with winds reaching 80.7 km/h.

What is the warmest month in San Tung Chung Hang?

The warmest month in San Tung Chung Hang is July (28.3 °C on average); the coldest is January (15.9 °C).

How much does it rain in San Tung Chung Hang?

San Tung Chung Hang receives on average 1,633 mm of precipitation per year, spread over about 155 rainy days.

Is it sunny in San Tung Chung Hang?

San Tung Chung Hang gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

What is the biggest single-day snowfall in San Tung Chung Hang?

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

Are there tropical nights in San Tung Chung Hang?

Yes: San Tung Chung Hang has on average 226 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in San Tung Chung Hang?

In San Tung Chung Hang, between 1940 and 2025, the highest apparent temperature reached 43.6 °C on 22 August 2017, and the lowest was -4.2 °C on 16 January 1967.

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