Long Xuyen climate — normals and trends

Q: What is the climate of Long Xuyen?

Long Xuyen has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.3 °C and it receives 1,677 mm of precipitation per year.

Q: What is the hottest day ever recorded in Long Xuyen?

The hottest day measured in Long Xuyen between 1940 and 2025 was 13 May 2016, reaching 39.2 °C.

Q: What is the coldest day in Long Xuyen?

The coldest day measured in Long Xuyen between 1940 and 2025 was 19 January 1961, at 15.3 °C.

Q: Does it snow in Long Xuyen?

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

Q: Has the climate of Long Xuyen warmed?

Yes: Long Xuyen warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Long Xuyen?

The wettest day measured in Long Xuyen between 1940 and 2025 was 4 November 2022, with 83 mm of rain in 24 hours.

Q: What was the windiest day in Long Xuyen?

The windiest day measured in Long Xuyen between 1940 and 2025 was 7 September 1982, with winds reaching 32.4 km/h.

Q: What is the warmest month in Long Xuyen?

The warmest month in Long Xuyen is April (29.0 °C on average); the coldest is January (25.6 °C).

Q: How much does it rain in Long Xuyen?

Long Xuyen receives on average 1,677 mm of precipitation per year, spread over about 215 rainy days.

Q: Is it sunny in Long Xuyen?

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

Long Xuyen (Vietnam) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.3 °C and it receives 1,677 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 (29.0 °C on average) and the coldest is January (25.6 °C). Rainfall peaks in September.

Long Xuyen averages 0 frost days, 288 hot days (≥ 30 °C) and 215 rainy days per year.

Long Xuyen has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The hottest day of the period reached 39.2 °C (on 13 May 2016) and the coldest 15.3 °C (on 19 January 1961).

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

Long XuyenAn Giang

coords: 10.39°, 105.44°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthJanuaryWettest monthSeptemberDriest monthFebruary

Mean daily temperature

27.3°C

Average daily high

31.4°C

Average daily low

24.4°C

Annual rainfall

1,677mm

Sunshine / day

9.9h

Mean relative humidity

80%

Average peak wind

14.2km/h

Seasonal range

3.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

288 d/yr

Rainy days (≥ 1 mm)

215 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.5 °C

Average feels-like low

28.7 °C

Average peak gust

31.9 km/h

Tropical nights (≥ 20 °C)

359 d/yr

Solar radiation

18.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.76 · 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

39.2 °C

13 May 2016

Coldest day

15.3 °C

19 January 1961

Wettest day

83 mm

4 November 2022

Windiest day

32.4 km/h

7 September 1982

Strongest gust

72.0 km/h

12 August 1978

Hottest feels-like

45.2 °C

18 May 2010

Coldest feels-like

13.2 °C

12 January 1955

Sunniest day

12.0 h

1 June 1981

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.4 °C25 April 2025	19.9 °C13 January 2025	28.0 °C	1,768 mm	315
2024	37.3 °C3 May 2024	22.0 °C23 December 2024	28.7 °C	1,930 mm	333
2023	36.0 °C14 April 2023	20.7 °C30 January 2023	28.2 °C	1,846 mm	324
2022	36.3 °C27 April 2022	19.9 °C25 December 2022	27.9 °C	2,117 mm	324
2021	35.9 °C5 May 2021	19.3 °C13 January 2021	27.7 °C	1,916 mm	303
2020	36.0 °C5 April 2020	20.6 °C7 February 2020	28.1 °C	1,730 mm	328
2019	37.6 °C16 April 2019	20.1 °C7 December 2019	28.1 °C	1,469 mm	329
2018	36.1 °C23 April 2018	20.1 °C7 February 2018	27.9 °C	1,929 mm	311
2017	35.4 °C22 April 2017	19.5 °C21 December 2017	27.8 °C	2,132 mm	311
2016	39.2 °C13 May 2016	19.2 °C8 February 2016	28.4 °C	1,777 mm	330
2015	37.2 °C18 May 2015	19.4 °C10 February 2015	28.3 °C	1,385 mm	335
2014	36.9 °C16 March 2014	17.7 °C24 January 2014	27.9 °C	1,615 mm	311
2013	38.4 °C7 April 2013	20.1 °C28 December 2013	27.9 °C	1,877 mm	308
2012	36.7 °C15 March 2012	21.4 °C9 January 2012	27.9 °C	1,763 mm	337
2011	35.0 °C18 April 2011	19.1 °C19 January 2011	27.4 °C	1,790 mm	304
2010	38.2 °C17 May 2010	21.1 °C31 October 2010	28.1 °C	1,938 mm	337
2009	36.7 °C20 April 2009	18.3 °C15 January 2009	27.6 °C	1,586 mm	302
2008	35.7 °C1 April 2008	20.8 °C2 January 2008	27.4 °C	1,931 mm	310
2007	36.6 °C25 April 2007	18.2 °C31 January 2007	27.6 °C	1,881 mm	307
2006	34.8 °C19 March 2006	20.3 °C23 December 2006	27.6 °C	1,673 mm	298
2005	37.2 °C5 May 2005	19.2 °C3 January 2005	27.7 °C	1,584 mm	301
2004	36.7 °C18 April 2004	20.0 °C24 December 2004	27.8 °C	1,371 mm	319
2003	37.0 °C13 April 2003	20.3 °C14 January 2003	27.9 °C	1,693 mm	319
2002	38.0 °C2 May 2002	20.2 °C9 January 2002	28.3 °C	1,375 mm	333
2001	35.2 °C23 April 2001	19.4 °C31 December 2001	27.6 °C	1,661 mm	316
2000	34.7 °C26 March 2000	20.9 °C22 January 2000	27.4 °C	1,836 mm	301
1999	35.2 °C19 March 1999	16.9 °C26 December 1999	27.0 °C	2,129 mm	261
1998	37.5 °C29 March 1998	18.8 °C16 December 1998	28.2 °C	1,825 mm	323
1997	35.6 °C21 April 1997	19.5 °C12 January 1997	27.6 °C	1,433 mm	299
1996	36.0 °C24 March 1996	18.4 °C28 December 1996	27.2 °C	2,165 mm	289
1995	36.5 °C27 April 1995	18.0 °C7 January 1995	27.6 °C	1,521 mm	312
1994	35.8 °C7 April 1994	19.0 °C25 January 1994	27.2 °C	1,546 mm	306
1993	37.3 °C4 May 1993	18.0 °C30 January 1993	27.1 °C	1,763 mm	268
1992	37.5 °C2 May 1992	18.0 °C20 January 1992	27.5 °C	1,440 mm	290
1991	35.4 °C20 April 1991	21.3 °C7 December 1991	27.5 °C	1,433 mm	310
1990	36.5 °C1 May 1990	20.1 °C25 December 1990	27.8 °C	1,355 mm	324
1989	34.8 °C22 April 1989	19.6 °C16 December 1989	27.2 °C	1,738 mm	311
1988	36.8 °C15 March 1988	19.1 °C16 December 1988	27.5 °C	1,650 mm	301
1987	38.5 °C13 April 1987	19.3 °C14 January 1987	27.8 °C	1,715 mm	318
1986	36.5 °C27 April 1986	18.2 °C4 March 1986	27.1 °C	1,876 mm	268
1985	37.5 °C13 April 1985	18.8 °C17 December 1985	27.1 °C	2,014 mm	291
1984	36.0 °C27 March 1984	19.5 °C10 January 1984	27.0 °C	1,600 mm	287
1983	37.0 °C16 May 1983	17.7 °C26 January 1983	27.3 °C	1,624 mm	278
1982	34.8 °C24 March 1982	18.6 °C29 December 1982	26.9 °C	1,813 mm	276
1981	37.5 °C2 May 1981	18.2 °C14 January 1981	27.2 °C	1,541 mm	276
1980	37.3 °C14 April 1980	19.4 °C23 January 1980	27.4 °C	1,832 mm	309
1979	38.2 °C26 March 1979	19.7 °C30 November 1979	27.5 °C	1,572 mm	311
1978	36.6 °C4 April 1978	19.9 °C25 December 1978	27.4 °C	1,656 mm	302
1977	36.2 °C7 May 1977	19.1 °C17 February 1977	27.3 °C	1,507 mm	308
1976	35.8 °C20 April 1976	16.3 °C16 January 1976	26.8 °C	1,791 mm	258
1975	35.9 °C16 April 1975	16.0 °C31 December 1975	26.6 °C	2,053 mm	256
1974	35.3 °C21 April 1974	16.9 °C5 January 1974	26.9 °C	1,646 mm	289
1973	35.8 °C5 April 1973	17.1 °C29 December 1973	27.3 °C	1,860 mm	293
1972	35.5 °C27 May 1972	17.7 °C16 January 1972	27.1 °C	2,083 mm	285
1971	35.6 °C23 April 1971	17.7 °C17 November 1971	26.6 °C	1,677 mm	242
1970	36.3 °C23 April 1970	19.0 °C3 February 1970	27.2 °C	1,605 mm	276
1969	35.7 °C26 April 1969	19.4 °C7 February 1969	27.2 °C	1,345 mm	285
1968	34.8 °C1 April 1968	19.0 °C3 January 1968	26.9 °C	1,247 mm	278
1967	36.3 °C13 April 1967	16.2 °C17 January 1967	26.7 °C	1,248 mm	240
1966	36.4 °C13 March 1966	20.2 °C2 January 1966	26.8 °C	1,673 mm	254
1965	35.4 °C25 April 1965	17.0 °C17 January 1965	26.8 °C	1,566 mm	276
1964	35.6 °C12 April 1964	18.2 °C19 December 1964	27.0 °C	1,654 mm	279
1963	35.7 °C18 May 1963	15.3 °C16 January 1963	26.9 °C	1,351 mm	271
1962	35.6 °C24 April 1962	16.1 °C28 January 1962	26.8 °C	1,649 mm	252
1961	36.4 °C22 March 1961	15.3 °C19 January 1961	26.9 °C	1,428 mm	264
1960	36.0 °C1 April 1960	17.6 °C2 January 1960	27.2 °C	1,471 mm	290
1959	36.1 °C16 April 1959	17.5 °C19 January 1959	27.2 °C	1,474 mm	287
1958	36.6 °C8 May 1958	18.5 °C6 January 1958	27.2 °C	1,314 mm	284
1957	35.2 °C28 May 1957	17.1 °C3 January 1957	26.9 °C	1,706 mm	278
1956	35.1 °C1 April 1956	17.8 °C19 January 1956	26.4 °C	2,000 mm	243
1955	35.2 °C2 April 1955	16.0 °C12 January 1955	26.7 °C	1,808 mm	267
1954	35.8 °C15 April 1954	18.1 °C21 November 1954	26.7 °C	1,432 mm	273
1953	35.6 °C12 March 1953	17.6 °C9 January 1953	27.0 °C	1,580 mm	281
1952	35.2 °C14 April 1952	17.9 °C23 January 1952	26.9 °C	1,446 mm	262
1951	36.7 °C11 April 1951	18.3 °C2 January 1951	27.1 °C	1,039 mm	286
1950	35.1 °C22 April 1950	18.9 °C31 December 1950	26.8 °C	1,342 mm	261
1949	35.7 °C15 March 1949	18.5 °C16 January 1949	26.8 °C	1,722 mm	272
1948	35.4 °C13 March 1948	18.2 °C21 November 1948	26.7 °C	1,398 mm	290
1947	36.0 °C24 April 1947	19.2 °C30 December 1947	26.7 °C	1,677 mm	268
1946	35.2 °C27 March 1946	18.1 °C7 January 1946	26.3 °C	1,630 mm	247
1945	34.8 °C26 March 1945	18.3 °C29 December 1945	26.0 °C	1,937 mm	197
1944	36.2 °C8 April 1944	18.2 °C21 December 1944	26.6 °C	1,679 mm	257
1943	35.4 °C26 March 1943	17.6 °C11 January 1943	25.8 °C	1,816 mm	184
1942	36.0 °C25 April 1942	17.5 °C15 December 1942	26.3 °C	1,535 mm	239
1941	35.7 °C10 March 1941	21.0 °C22 January 1941	26.4 °C	2,047 mm	238
1940	35.1 °C11 March 1940	15.8 °C4 January 1940	26.0 °C	2,010 mm	185

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

31.7 °C

+0.3 °C

Hot days (≥ 30 °C)

315 d/yr

+27

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1768 mm

+91 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	29.9 °C	-0.2 °C	4 mm	-16 mm
Feb	31.6 °C	+0.1 °C	40 mm	+26 mm
Mar	33.3 °C	0.0 °C	12 mm	-19 mm
Apr	33.4 °C	-0.4 °C	104 mm	+21 mm
May	32.5 °C	+0.1 °C	259 mm	+81 mm
Jun	31.3 °C	+0.1 °C	255 mm	+60 mm
Jul	31.5 °C	+0.6 °C	123 mm	-87 mm
Aug	31.9 °C	+1.0 °C	193 mm	-25 mm
Sep	31.4 °C	+0.5 °C	308 mm	+36 mm
Oct	31.9 °C	+0.9 °C	269 mm	-2 mm
Nov	30.8 °C	0.0 °C	149 mm	+11 mm
Dec	31.3 °C	+1.2 °C	52 mm	+3 mm

The year's extremes

Hottest day

35.4 °C

25 Apr 2025

Coldest day

19.9 °C

13 Jan 2025

Wettest day

55.6 mm

22 Jun 2025

Windiest day

27.5 km/h

22 Jul 2025

Strongest gust

61.9 km/h

22 Jul 2025

Hottest feels-like

42.6 °C

19 Apr 2025

Coldest feels-like

18.9 °C

13 Jan 2025

Sunniest day

12.0 h

27 Mar 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 Long Xuyen?

Long Xuyen has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.3 °C and it receives 1,677 mm of precipitation per year.

What is the hottest day ever recorded in Long Xuyen?

The hottest day measured in Long Xuyen between 1940 and 2025 was 13 May 2016, reaching 39.2 °C.

What is the coldest day in Long Xuyen?

The coldest day measured in Long Xuyen between 1940 and 2025 was 19 January 1961, at 15.3 °C.

Does it snow in Long Xuyen?

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

Has the climate of Long Xuyen warmed?

Yes: Long Xuyen warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Long Xuyen?

The wettest day measured in Long Xuyen between 1940 and 2025 was 4 November 2022, with 83 mm of rain in 24 hours.

What was the windiest day in Long Xuyen?

The windiest day measured in Long Xuyen between 1940 and 2025 was 7 September 1982, with winds reaching 32.4 km/h.

What is the warmest month in Long Xuyen?

The warmest month in Long Xuyen is April (29.0 °C on average); the coldest is January (25.6 °C).

How much does it rain in Long Xuyen?

Long Xuyen receives on average 1,677 mm of precipitation per year, spread over about 215 rainy days.

Is it sunny in Long Xuyen?

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

Are there tropical nights in Long Xuyen?

Yes: Long Xuyen has on average 359 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Long Xuyen?

In Long Xuyen, between 1940 and 2025, the highest apparent temperature reached 45.2 °C on 18 May 2010, and the lowest was 13.2 °C on 12 January 1955.

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