Cao Lanh climate — normals and trends

Q: What is the climate of Cao Lanh?

Cao Lanh has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.2 °C and it receives 1,744 mm of precipitation per year.

Q: What is the hottest day ever recorded in Cao Lanh?

The hottest day measured in Cao Lanh between 1940 and 2025 was 12 May 2016, reaching 39.1 °C.

Q: What is the coldest day in Cao Lanh?

The coldest day measured in Cao Lanh between 1940 and 2025 was 16 January 1963, at 14.9 °C.

Q: Does it snow in Cao Lanh?

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

Q: Has the climate of Cao Lanh warmed?

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

Q: What is the wettest day in Cao Lanh?

The wettest day measured in Cao Lanh between 1940 and 2025 was 26 November 2018, with 106 mm of rain in 24 hours.

Q: What was the windiest day in Cao Lanh?

The windiest day measured in Cao Lanh between 1940 and 2025 was 7 September 1982, with winds reaching 31.7 km/h.

Q: What is the warmest month in Cao Lanh?

The warmest month in Cao Lanh is April (29.0 °C on average); the coldest is January (25.7 °C).

Q: How much does it rain in Cao Lanh?

Cao Lanh receives on average 1,744 mm of precipitation per year, spread over about 215 rainy days.

Q: Is it sunny in Cao Lanh?

Cao Lanh gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.

Cao Lanh (Vietnam) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.2 °C and it receives 1,744 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 (25.7 °C). Rainfall peaks in September.

Cao Lanh averages 0 frost days, 299 hot days (≥ 30 °C) and 215 rainy days per year.

Cao Lanh 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 39.1 °C (on 12 May 2016) and the coldest 14.9 °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

Cao LanhDong Thap

coords: 10.46°, 105.63°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthJanuaryWettest monthSeptemberDriest monthFebruary

Mean daily temperature

27.2°C

Average daily high

31.7°C

Average daily low

24.1°C

Annual rainfall

1,744mm

Sunshine / day

10.0h

Mean relative humidity

79%

Average peak wind

13.9km/h

Seasonal range

3.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

299 d/yr

Rainy days (≥ 1 mm)

215 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.7 °C

Average feels-like low

28.4 °C

Average peak gust

31.8 km/h

Tropical nights (≥ 20 °C)

357 d/yr

Solar radiation

18.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.73 · 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

39.1 °C

12 May 2016

Coldest day

14.9 °C

16 January 1963

Wettest day

106 mm

26 November 2018

Windiest day

31.7 km/h

7 September 1982

Strongest gust

73.1 km/h

18 August 1957

Hottest feels-like

45.4 °C

7 April 2013

Coldest feels-like

13.5 °C

16 January 1963

Sunniest day

12.1 h

19 June 1943

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.6 °C25 April 2025	19.6 °C13 January 2025	27.9 °C	1,905 mm	329
2024	37.4 °C29 April 2024	21.4 °C23 December 2024	28.6 °C	2,006 mm	334
2023	36.2 °C6 May 2023	20.4 °C31 January 2023	28.0 °C	1,965 mm	330
2022	36.6 °C27 April 2022	19.5 °C25 December 2022	27.8 °C	2,122 mm	324
2021	36.4 °C5 May 2021	19.3 °C13 January 2021	27.6 °C	1,990 mm	308
2020	36.1 °C5 April 2020	21.0 °C8 February 2020	28.0 °C	1,716 mm	331
2019	38.7 °C4 May 2019	19.8 °C7 December 2019	28.1 °C	1,438 mm	332
2018	36.5 °C23 April 2018	20.2 °C7 February 2018	27.9 °C	2,058 mm	322
2017	36.0 °C22 April 2017	19.6 °C25 December 2017	27.8 °C	2,224 mm	313
2016	39.1 °C12 May 2016	19.0 °C8 February 2016	28.4 °C	1,899 mm	333
2015	38.6 °C19 May 2015	19.3 °C10 February 2015	28.3 °C	1,510 mm	346
2014	36.8 °C1 April 2014	18.0 °C24 January 2014	27.8 °C	1,692 mm	323
2013	38.3 °C7 April 2013	20.4 °C28 December 2013	28.0 °C	1,825 mm	321
2012	37.0 °C21 April 2012	21.2 °C9 January 2012	27.9 °C	1,956 mm	343
2011	35.3 °C18 April 2011	18.9 °C19 January 2011	27.3 °C	1,959 mm	313
2010	38.8 °C18 May 2010	20.7 °C31 October 2010	28.1 °C	2,034 mm	340
2009	37.4 °C19 April 2009	18.1 °C15 January 2009	27.5 °C	1,691 mm	317
2008	36.4 °C24 April 2008	20.0 °C13 November 2008	27.3 °C	1,965 mm	320
2007	37.2 °C25 April 2007	18.4 °C31 January 2007	27.5 °C	1,975 mm	310
2006	35.4 °C26 March 2006	20.2 °C23 December 2006	27.5 °C	1,810 mm	309
2005	37.6 °C6 May 2005	18.9 °C23 December 2005	27.6 °C	1,640 mm	312
2004	36.6 °C14 April 2004	19.9 °C23 December 2004	27.7 °C	1,400 mm	332
2003	37.6 °C27 April 2003	19.7 °C13 January 2003	27.8 °C	1,777 mm	328
2002	38.5 °C30 April 2002	20.2 °C9 January 2002	28.3 °C	1,312 mm	337
2001	35.6 °C15 March 2001	19.7 °C30 December 2001	27.6 °C	1,668 mm	324
2000	35.5 °C7 April 2000	20.5 °C3 February 2000	27.3 °C	1,929 mm	309
1999	35.4 °C18 March 1999	16.4 °C26 December 1999	27.0 °C	2,113 mm	282
1998	37.9 °C11 May 1998	18.8 °C16 December 1998	28.1 °C	1,918 mm	325
1997	36.6 °C21 April 1997	19.5 °C12 January 1997	27.6 °C	1,478 mm	324
1996	35.9 °C1 April 1996	18.6 °C28 December 1996	27.1 °C	2,204 mm	297
1995	36.7 °C25 April 1995	17.9 °C31 December 1995	27.5 °C	1,769 mm	316
1994	36.2 °C13 March 1994	19.2 °C25 January 1994	27.2 °C	1,554 mm	312
1993	37.8 °C8 May 1993	17.2 °C30 January 1993	27.0 °C	1,904 mm	280
1992	38.2 °C26 April 1992	17.7 °C20 January 1992	27.4 °C	1,447 mm	306
1991	35.4 °C29 March 1991	20.9 °C14 November 1991	27.4 °C	1,502 mm	318
1990	37.4 °C7 May 1990	20.0 °C3 December 1990	27.8 °C	1,382 mm	331
1989	36.8 °C22 April 1989	20.0 °C7 February 1989	27.2 °C	1,753 mm	321
1988	37.2 °C15 March 1988	19.1 °C13 December 1988	27.4 °C	1,732 mm	305
1987	38.1 °C13 April 1987	19.0 °C14 January 1987	27.8 °C	1,684 mm	326
1986	37.2 °C27 April 1986	18.2 °C4 March 1986	27.0 °C	1,857 mm	289
1985	37.6 °C13 April 1985	18.1 °C17 December 1985	27.0 °C	2,073 mm	303
1984	36.4 °C9 April 1984	19.1 °C10 January 1984	26.9 °C	1,659 mm	294
1983	38.6 °C16 May 1983	17.8 °C26 January 1983	27.3 °C	1,716 mm	282
1982	35.1 °C24 March 1982	18.4 °C20 December 1982	26.9 °C	1,842 mm	296
1981	37.5 °C2 May 1981	17.9 °C22 December 1981	27.2 °C	1,607 mm	289
1980	37.3 °C28 March 1980	19.2 °C23 January 1980	27.3 °C	2,020 mm	314
1979	38.5 °C12 April 1979	19.3 °C27 December 1979	27.4 °C	1,587 mm	321
1978	36.7 °C4 April 1978	20.0 °C23 January 1978	27.3 °C	1,718 mm	305
1977	36.5 °C6 May 1977	18.9 °C17 February 1977	27.2 °C	1,545 mm	325
1976	35.9 °C20 April 1976	16.3 °C1 January 1976	26.7 °C	1,835 mm	277
1975	37.0 °C28 April 1975	15.2 °C31 December 1975	26.5 °C	2,130 mm	278
1974	35.9 °C12 May 1974	16.5 °C5 January 1974	26.9 °C	1,669 mm	298
1973	36.1 °C5 April 1973	16.4 °C29 December 1973	27.2 °C	1,969 mm	295
1972	36.5 °C27 May 1972	17.3 °C16 January 1972	27.0 °C	2,126 mm	300
1971	35.7 °C23 April 1971	17.1 °C17 November 1971	26.5 °C	1,828 mm	257
1970	36.4 °C25 April 1970	18.7 °C3 February 1970	27.1 °C	1,726 mm	286
1969	36.0 °C26 April 1969	19.4 °C22 December 1969	27.2 °C	1,435 mm	297
1968	35.2 °C23 April 1968	18.2 °C14 January 1968	26.9 °C	1,325 mm	303
1967	36.2 °C10 April 1967	16.2 °C17 January 1967	26.6 °C	1,286 mm	265
1966	36.4 °C13 March 1966	19.6 °C30 December 1966	26.8 °C	1,732 mm	273
1965	35.9 °C29 April 1965	16.5 °C17 January 1965	26.7 °C	1,710 mm	289
1964	35.6 °C12 April 1964	17.5 °C19 December 1964	26.9 °C	1,768 mm	280
1963	36.3 °C18 May 1963	14.9 °C16 January 1963	26.7 °C	1,436 mm	281
1962	36.0 °C24 April 1962	15.7 °C28 January 1962	26.7 °C	1,748 mm	267
1961	36.8 °C22 March 1961	15.3 °C19 January 1961	26.8 °C	1,510 mm	281
1960	36.1 °C18 April 1960	16.9 °C3 January 1960	27.1 °C	1,523 mm	294
1959	36.5 °C7 May 1959	17.5 °C19 January 1959	27.2 °C	1,605 mm	304
1958	37.2 °C27 April 1958	18.7 °C6 January 1958	27.2 °C	1,333 mm	295
1957	36.3 °C23 April 1957	17.6 °C3 January 1957	27.0 °C	1,782 mm	289
1956	35.5 °C13 March 1956	17.2 °C19 January 1956	26.3 °C	2,076 mm	255
1955	35.3 °C17 April 1955	16.1 °C12 January 1955	26.6 °C	1,901 mm	272
1954	36.3 °C15 April 1954	17.6 °C21 November 1954	26.7 °C	1,584 mm	290
1953	35.8 °C12 March 1953	17.6 °C9 January 1953	27.0 °C	1,582 mm	296
1952	35.6 °C20 April 1952	18.1 °C23 January 1952	26.9 °C	1,420 mm	273
1951	37.4 °C10 April 1951	18.2 °C16 December 1951	27.1 °C	1,061 mm	306
1950	35.9 °C22 April 1950	18.7 °C31 December 1950	26.8 °C	1,409 mm	280
1949	36.4 °C3 June 1949	18.1 °C16 January 1949	26.8 °C	1,800 mm	294
1948	36.4 °C25 March 1948	17.7 °C2 January 1948	26.7 °C	1,442 mm	302
1947	36.9 °C24 April 1947	18.6 °C30 December 1947	26.7 °C	1,704 mm	285
1946	35.9 °C28 March 1946	17.5 °C7 January 1946	26.2 °C	1,697 mm	264
1945	35.4 °C26 March 1945	17.5 °C29 December 1945	25.8 °C	2,001 mm	215
1944	37.1 °C27 April 1944	18.1 °C21 December 1944	26.7 °C	1,685 mm	268
1943	35.8 °C25 March 1943	17.7 °C25 January 1943	25.7 °C	1,882 mm	216
1942	36.7 °C25 April 1942	17.2 °C15 December 1942	26.2 °C	1,640 mm	253
1941	36.0 °C10 March 1941	20.6 °C24 December 1941	26.2 °C	2,015 mm	252
1940	35.9 °C11 March 1940	15.1 °C4 January 1940	26.0 °C	2,088 mm	215

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

31.9 °C

+0.2 °C

Hot days (≥ 30 °C)

329 d/yr

+30

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1905 mm

+161 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	30.2 °C	-0.4 °C	5 mm	-16 mm
Feb	31.9 °C	0.0 °C	28 mm	+16 mm
Mar	33.5 °C	-0.1 °C	8 mm	-21 mm
Apr	33.8 °C	-0.4 °C	96 mm	+17 mm
May	32.8 °C	0.0 °C	286 mm	+108 mm
Jun	31.4 °C	0.0 °C	287 mm	+81 mm
Jul	31.5 °C	+0.5 °C	170 mm	-56 mm
Aug	31.9 °C	+0.9 °C	219 mm	-17 mm
Sep	31.6 °C	+0.5 °C	318 mm	+31 mm
Oct	32.1 °C	+1.0 °C	259 mm	-18 mm
Nov	30.8 °C	0.0 °C	157 mm	+17 mm
Dec	31.4 °C	+1.1 °C	72 mm	+19 mm

The year's extremes

Hottest day

36.6 °C

25 Apr 2025

Coldest day

19.6 °C

13 Jan 2025

Wettest day

42.0 mm

22 Jun 2025

Windiest day

26.5 km/h

22 Jul 2025

Strongest gust

63.0 km/h

22 Jul 2025

Hottest feels-like

43.2 °C

25 Apr 2025

Coldest feels-like

18.8 °C

13 Jan 2025

Sunniest day

12.0 h

24 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 Cao Lanh?

Cao Lanh has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.2 °C and it receives 1,744 mm of precipitation per year.

What is the hottest day ever recorded in Cao Lanh?

The hottest day measured in Cao Lanh between 1940 and 2025 was 12 May 2016, reaching 39.1 °C.

What is the coldest day in Cao Lanh?

The coldest day measured in Cao Lanh between 1940 and 2025 was 16 January 1963, at 14.9 °C.

Does it snow in Cao Lanh?

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

Has the climate of Cao Lanh warmed?

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

What is the wettest day in Cao Lanh?

The wettest day measured in Cao Lanh between 1940 and 2025 was 26 November 2018, with 106 mm of rain in 24 hours.

What was the windiest day in Cao Lanh?

The windiest day measured in Cao Lanh between 1940 and 2025 was 7 September 1982, with winds reaching 31.7 km/h.

What is the warmest month in Cao Lanh?

The warmest month in Cao Lanh is April (29.0 °C on average); the coldest is January (25.7 °C).

How much does it rain in Cao Lanh?

Cao Lanh receives on average 1,744 mm of precipitation per year, spread over about 215 rainy days.

Is it sunny in Cao Lanh?

Cao Lanh gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.

Are there tropical nights in Cao Lanh?

Yes: Cao Lanh has on average 357 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Cao Lanh?

In Cao Lanh, between 1940 and 2025, the highest apparent temperature reached 45.4 °C on 7 April 2013, and the lowest was 13.5 °C on 16 January 1963.

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