Kiên Hải climate — normals and trends

Q: What is the climate of Kiên Hải?

Kiên Hải has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 2,458 mm of precipitation per year.

Q: What is the hottest day ever recorded in Kiên Hải?

The hottest day measured in Kiên Hải between 1940 and 2025 was 7 May 1998, reaching 33.6 °C.

Q: What is the coldest day in Kiên Hải?

The coldest day measured in Kiên Hải between 1940 and 2025 was 16 January 1963, at 18.9 °C.

Q: Does it snow in Kiên Hải?

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

Q: Has the climate of Kiên Hải warmed?

Yes: Kiên Hải warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Kiên Hải?

The wettest day measured in Kiên Hải between 1940 and 2025 was 13 October 1949, with 148 mm of rain in 24 hours.

Q: What was the windiest day in Kiên Hải?

The windiest day measured in Kiên Hải between 1940 and 2025 was 3 November 1997, with winds reaching 51.5 km/h.

Q: What is the warmest month in Kiên Hải?

The warmest month in Kiên Hải is April (28.1 °C on average); the coldest is January (26.0 °C).

Q: How much does it rain in Kiên Hải?

Kiên Hải receives on average 2,458 mm of precipitation per year, spread over about 229 rainy days.

Q: Is it sunny in Kiên Hải?

Kiên Hải gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.

Kiên Hải (Vietnam) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 2,458 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 April (28.1 °C on average) and the coldest is January (26.0 °C). Rainfall peaks in September.

Kiên Hải averages 0 frost days, 32 hot days (≥ 30 °C) and 229 rainy days per year.

Kiên Hải has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.

The hottest day of the period reached 33.6 °C (on 7 May 1998) and the coldest 18.9 °C (on 16 January 1963).

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

Kiên HảiAn Giang

coords: 9.97°, 104.85°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthAprilColdest monthJanuaryWettest monthSeptemberDriest monthFebruary

Mean daily temperature

27.1°C

Average daily high

28.5°C

Average daily low

25.8°C

Annual rainfall

2,458mm

Sunshine / day

9.9h

Mean relative humidity

80%

Average peak wind

22.5km/h

Seasonal range

2.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

32 d/yr

Rainy days (≥ 1 mm)

229 d/yr

Annual snowfall

0.0 cm

Average feels-like high

32.8 °C

Average feels-like low

28.7 °C

Average peak gust

33.3 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

18.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.60 · 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

33.6 °C

7 May 1998

Coldest day

18.9 °C

16 January 1963

Wettest day

148 mm

13 October 1949

Windiest day

51.5 km/h

3 November 1997

Strongest gust

77.0 km/h

2 November 1997

Hottest feels-like

40.6 °C

26 May 2024

Coldest feels-like

15.2 °C

25 December 1999

Sunniest day

12.1 h

22 July 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	32.1 °C30 April 2025	21.6 °C13 January 2025	27.6 °C	2,354 mm	45
2024	33.6 °C10 April 2024	23.3 °C23 December 2024	28.2 °C	2,355 mm	129
2023	32.8 °C2 May 2023	22.6 °C30 January 2023	27.8 °C	2,342 mm	59
2022	30.8 °C17 April 2022	22.9 °C25 December 2022	27.5 °C	2,670 mm	42
2021	31.6 °C3 May 2021	21.4 °C13 January 2021	27.4 °C	2,434 mm	42
2020	32.8 °C3 April 2020	23.3 °C22 December 2020	27.8 °C	2,274 mm	71
2019	32.5 °C24 April 2019	22.4 °C8 December 2019	27.7 °C	2,153 mm	62
2018	31.1 °C7 March 2018	22.9 °C13 January 2018	27.5 °C	2,734 mm	52
2017	31.4 °C26 March 2017	20.5 °C21 December 2017	27.4 °C	2,783 mm	28
2016	33.1 °C19 April 2016	21.8 °C8 February 2016	27.7 °C	2,329 mm	64
2015	31.9 °C8 April 2015	22.7 °C2 January 2015	27.5 °C	1,802 mm	55
2014	31.7 °C15 March 2014	20.8 °C23 January 2014	27.3 °C	1,842 mm	36
2013	31.4 °C2 April 2013	21.7 °C28 December 2013	27.3 °C	2,311 mm	45
2012	31.8 °C1 April 2012	23.7 °C9 January 2012	27.4 °C	2,323 mm	34
2011	31.1 °C3 November 2011	22.2 °C26 December 2011	27.1 °C	2,198 mm	14
2010	32.8 °C25 April 2010	23.2 °C31 October 2010	27.6 °C	2,181 mm	75
2009	31.7 °C4 April 2009	21.0 °C11 January 2009	27.3 °C	2,257 mm	18
2008	31.8 °C22 April 2008	23.2 °C2 January 2008	27.0 °C	2,418 mm	15
2007	32.2 °C5 April 2007	22.0 °C2 February 2007	27.2 °C	2,772 mm	28
2006	31.6 °C20 April 2006	22.9 °C23 December 2006	27.4 °C	2,609 mm	50
2005	31.6 °C20 April 2005	20.5 °C23 December 2005	27.3 °C	2,274 mm	37
2004	31.5 °C3 April 2004	23.1 °C15 February 2004	27.3 °C	1,953 mm	48
2003	32.9 °C28 April 2003	22.6 °C21 December 2003	27.4 °C	2,410 mm	48
2002	33.4 °C6 May 2002	22.7 °C8 January 2002	27.5 °C	2,186 mm	47
2001	31.2 °C16 April 2001	22.6 °C31 December 2001	27.3 °C	2,496 mm	28
2000	31.0 °C25 March 2000	23.1 °C2 February 2000	27.1 °C	2,583 mm	17
1999	30.7 °C16 March 1999	19.1 °C25 December 1999	26.8 °C	2,841 mm	4
1998	33.6 °C7 May 1998	21.1 °C16 December 1998	27.8 °C	2,381 mm	96
1997	31.9 °C27 March 1997	22.1 °C12 January 1997	27.3 °C	2,195 mm	40
1996	31.3 °C23 March 1996	21.5 °C1 January 1996	26.9 °C	2,711 mm	14
1995	32.3 °C27 April 1995	21.7 °C31 December 1995	27.2 °C	2,239 mm	38
1994	31.1 °C30 April 1994	23.2 °C24 January 1994	27.0 °C	2,378 mm	25
1993	32.3 °C10 April 1993	21.0 °C30 January 1993	27.0 °C	2,743 mm	16
1992	32.5 °C25 April 1992	22.1 °C18 January 1992	27.1 °C	2,214 mm	39
1991	31.3 °C28 March 1991	23.1 °C15 November 1991	27.2 °C	2,465 mm	33
1990	33.0 °C5 April 1990	22.7 °C3 December 1990	27.4 °C	1,988 mm	53
1989	30.8 °C31 March 1989	22.7 °C3 December 1989	27.1 °C	2,392 mm	10
1988	31.5 °C20 March 1988	22.3 °C16 December 1988	27.3 °C	2,234 mm	51
1987	32.8 °C28 April 1987	21.9 °C8 December 1987	27.4 °C	2,453 mm	46
1986	31.8 °C6 April 1986	21.4 °C4 March 1986	26.8 °C	2,605 mm	24
1985	31.4 °C31 March 1985	21.8 °C17 December 1985	26.9 °C	2,488 mm	18
1984	31.2 °C23 March 1984	21.9 °C9 January 1984	26.9 °C	2,422 mm	12
1983	32.0 °C27 April 1983	21.5 °C25 January 1983	27.1 °C	2,489 mm	41
1982	30.7 °C11 March 1982	21.4 °C20 December 1982	26.9 °C	2,587 mm	20
1981	31.5 °C28 March 1981	21.2 °C21 December 1981	27.0 °C	2,238 mm	41
1980	31.7 °C3 April 1980	22.8 °C31 December 1980	27.2 °C	2,575 mm	27
1979	32.1 °C10 April 1979	22.3 °C27 December 1979	27.2 °C	2,412 mm	41
1978	31.3 °C28 March 1978	22.5 °C31 October 1978	27.0 °C	2,315 mm	30
1977	31.4 °C2 May 1977	22.5 °C5 March 1977	26.9 °C	2,075 mm	32
1976	31.3 °C1 April 1976	20.6 °C13 January 1976	26.6 °C	2,468 mm	10
1975	31.3 °C17 March 1975	19.5 °C31 December 1975	26.6 °C	2,953 mm	13
1974	31.1 °C11 May 1974	20.8 °C5 January 1974	26.8 °C	2,326 mm	20
1973	32.2 °C6 April 1973	20.3 °C29 December 1973	27.2 °C	2,899 mm	49
1972	30.6 °C28 April 1972	21.6 °C15 January 1972	26.8 °C	3,419 mm	3
1971	31.2 °C11 April 1971	20.9 °C9 January 1971	26.5 °C	2,612 mm	5
1970	31.9 °C15 April 1970	22.4 °C23 January 1970	27.0 °C	2,477 mm	32
1969	32.1 °C5 April 1969	22.1 °C4 December 1969	27.1 °C	2,455 mm	55
1968	31.0 °C5 April 1968	22.8 °C1 January 1968	26.9 °C	1,970 mm	21
1967	31.9 °C12 April 1967	19.7 °C17 January 1967	26.8 °C	2,319 mm	17
1966	31.9 °C9 March 1966	23.2 °C1 January 1966	27.2 °C	3,144 mm	41
1965	31.3 °C13 April 1965	21.0 °C17 January 1965	26.7 °C	2,596 mm	8
1964	32.0 °C24 April 1964	20.7 °C19 December 1964	26.9 °C	2,663 mm	39
1963	32.0 °C13 May 1963	18.9 °C16 January 1963	26.7 °C	2,018 mm	21
1962	31.7 °C28 April 1962	20.8 °C28 January 1962	26.7 °C	2,370 mm	16
1961	31.5 °C30 March 1961	19.8 °C18 January 1961	26.8 °C	2,335 mm	25
1960	31.7 °C5 April 1960	20.7 °C3 January 1960	27.0 °C	2,221 mm	12
1959	32.3 °C14 April 1959	22.5 °C18 January 1959	27.1 °C	2,104 mm	28
1958	31.9 °C17 April 1958	22.1 °C6 January 1958	27.1 °C	1,961 mm	40
1957	31.2 °C28 March 1957	21.8 °C2 January 1957	26.9 °C	3,083 mm	23
1956	31.1 °C28 April 1956	21.4 °C30 November 1956	26.5 °C	2,720 mm	22
1955	31.7 °C5 April 1955	19.8 °C12 January 1955	26.7 °C	2,476 mm	33
1954	31.6 °C21 April 1954	21.8 °C17 December 1954	27.0 °C	2,135 mm	34
1953	31.1 °C5 March 1953	22.0 °C12 December 1953	27.1 °C	2,310 mm	35
1952	31.5 °C21 May 1952	21.5 °C11 December 1952	27.1 °C	2,038 mm	35
1951	31.4 °C31 March 1951	22.3 °C16 December 1951	27.1 °C	1,430 mm	27
1950	31.8 °C3 April 1950	22.7 °C19 December 1950	27.0 °C	2,121 mm	21
1949	31.0 °C23 April 1949	21.9 °C10 January 1949	26.8 °C	2,932 mm	5
1948	31.2 °C25 March 1948	21.0 °C2 January 1948	26.8 °C	2,166 mm	12
1947	30.9 °C15 April 1947	22.2 °C30 December 1947	26.9 °C	2,390 mm	22
1946	31.4 °C1 April 1946	21.0 °C7 January 1946	26.8 °C	2,704 mm	17
1945	31.3 °C26 March 1945	21.6 °C14 January 1945	26.6 °C	3,533 mm	8
1944	31.0 °C18 April 1944	20.4 °C21 December 1944	26.5 °C	2,993 mm	8
1943	29.6 °C26 May 1943	21.2 °C13 January 1943	26.1 °C	2,926 mm	0
1942	31.5 °C24 April 1942	21.5 °C7 December 1942	26.6 °C	2,284 mm	8
1941	30.7 °C4 March 1941	23.8 °C30 December 1941	26.8 °C	3,356 mm	12
1940	30.7 °C9 April 1940	19.9 °C4 January 1940	26.4 °C	3,962 mm	5

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

28.8 °C

+0.3 °C

Hot days (≥ 30 °C)

45 d/yr

+13

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2354 mm

-104 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.1 °C	+0.2 °C	12 mm	-7 mm
Feb	28.7 °C	+0.1 °C	30 mm	+13 mm
Mar	29.7 °C	+0.4 °C	36 mm	-1 mm
Apr	29.8 °C	+0.1 °C	155 mm	+56 mm
May	29.5 °C	+0.2 °C	342 mm	+55 mm
Jun	29.0 °C	+0.3 °C	336 mm	-22 mm
Jul	28.8 °C	+0.6 °C	246 mm	-129 mm
Aug	28.6 °C	+0.7 °C	358 mm	-20 mm
Sep	28.3 °C	+0.5 °C	272 mm	-117 mm
Oct	28.7 °C	+0.7 °C	345 mm	+33 mm
Nov	28.1 °C	-0.3 °C	168 mm	+29 mm
Dec	28.6 °C	+0.6 °C	54 mm	+5 mm

The year's extremes

Hottest day

32.1 °C

30 Apr 2025

Coldest day

21.6 °C

13 Jan 2025

Wettest day

75.4 mm

29 Oct 2025

Windiest day

37.8 km/h

11 Aug 2025

Strongest gust

60.5 km/h

21 Jul 2025

Hottest feels-like

38.5 °C

13 Apr 2025

Coldest feels-like

18.4 °C

13 Jan 2025

Sunniest day

12.0 h

25 Jul 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 Kiên Hải?

Kiên Hải has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 2,458 mm of precipitation per year.

What is the hottest day ever recorded in Kiên Hải?

The hottest day measured in Kiên Hải between 1940 and 2025 was 7 May 1998, reaching 33.6 °C.

What is the coldest day in Kiên Hải?

The coldest day measured in Kiên Hải between 1940 and 2025 was 16 January 1963, at 18.9 °C.

Does it snow in Kiên Hải?

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

Has the climate of Kiên Hải warmed?

Yes: Kiên Hải warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Kiên Hải?

The wettest day measured in Kiên Hải between 1940 and 2025 was 13 October 1949, with 148 mm of rain in 24 hours.

What was the windiest day in Kiên Hải?

The windiest day measured in Kiên Hải between 1940 and 2025 was 3 November 1997, with winds reaching 51.5 km/h.

What is the warmest month in Kiên Hải?

The warmest month in Kiên Hải is April (28.1 °C on average); the coldest is January (26.0 °C).

How much does it rain in Kiên Hải?

Kiên Hải receives on average 2,458 mm of precipitation per year, spread over about 229 rainy days.

Is it sunny in Kiên Hải?

Kiên Hải gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.

Are there tropical nights in Kiên Hải?

Yes: Kiên Hải has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Kiên Hải?

In Kiên Hải, between 1940 and 2025, the highest apparent temperature reached 40.6 °C on 26 May 2024, and the lowest was 15.2 °C on 25 December 1999.

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