Rach Gia climate — normals and trends

Q: What is the climate of Rach Gia?

Rach Gia has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 2,270 mm of precipitation per year.

Q: What is the hottest day ever recorded in Rach Gia?

The hottest day measured in Rach Gia between 1940 and 2025 was 6 May 1998, reaching 35.7 °C.

Q: What is the coldest day in Rach Gia?

The coldest day measured in Rach Gia between 1940 and 2025 was 16 January 1963, at 17.7 °C.

Q: Does it snow in Rach Gia?

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

Q: Has the climate of Rach Gia warmed?

Yes: Rach Gia warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Rach Gia?

The wettest day measured in Rach Gia between 1940 and 2025 was 2 December 1972, with 154 mm of rain in 24 hours.

Q: What was the windiest day in Rach Gia?

The windiest day measured in Rach Gia between 1940 and 2025 was 29 September 2009, with winds reaching 42.9 km/h.

Q: What is the warmest month in Rach Gia?

The warmest month in Rach Gia is April (28.3 °C on average); the coldest is January (25.8 °C).

Q: How much does it rain in Rach Gia?

Rach Gia receives on average 2,270 mm of precipitation per year, spread over about 227 rainy days.

Q: Is it sunny in Rach Gia?

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

Rach Gia (Vietnam) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 2,270 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 (28.3 °C on average) and the coldest is January (25.8 °C). Rainfall peaks in September.

Rach Gia averages 0 frost days, 110 hot days (≥ 30 °C) and 227 rainy days per year.

Rach Gia has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.7 °C (on 6 May 1998) and the coldest 17.7 °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

Rach GiaAn Giang

coords: 10.01°, 105.08°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthAprilColdest monthJanuaryWettest monthSeptemberDriest monthFebruary

Mean daily temperature

27.1°C

Average daily high

29.3°C

Average daily low

25.3°C

Annual rainfall

2,270mm

Sunshine / day

9.9h

Mean relative humidity

80%

Average peak wind

19.0km/h

Seasonal range

2.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

110 d/yr

Rainy days (≥ 1 mm)

227 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.8 °C

Average feels-like low

28.8 °C

Average peak gust

31.6 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

18.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.66 · 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

35.7 °C

6 May 1998

Coldest day

17.7 °C

16 January 1963

Wettest day

154 mm

2 December 1972

Windiest day

42.9 km/h

29 September 2009

Strongest gust

74.5 km/h

2 November 1997

Hottest feels-like

42.5 °C

4 May 2024

Coldest feels-like

15.5 °C

25 December 1999

Sunniest day

12.1 h

10 July 1951

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	32.6 °C14 March 2025	21.2 °C13 January 2025	27.6 °C	2,252 mm	123
2024	35.0 °C9 April 2024	22.8 °C23 December 2024	28.3 °C	2,279 mm	209
2023	33.9 °C25 April 2023	22.3 °C30 January 2023	27.8 °C	2,233 mm	177
2022	32.5 °C8 March 2022	21.9 °C25 December 2022	27.5 °C	2,569 mm	125
2021	32.8 °C23 March 2021	21.0 °C13 January 2021	27.4 °C	2,270 mm	110
2020	33.8 °C21 April 2020	22.5 °C7 February 2020	27.8 °C	2,132 mm	182
2019	35.1 °C24 April 2019	21.9 °C7 December 2019	27.7 °C	2,053 mm	180
2018	33.4 °C16 April 2018	21.8 °C7 February 2018	27.5 °C	2,490 mm	155
2017	32.2 °C26 March 2017	19.9 °C21 December 2017	27.4 °C	2,606 mm	113
2016	34.9 °C19 April 2016	21.2 °C8 February 2016	27.9 °C	2,297 mm	168
2015	33.9 °C7 April 2015	21.6 °C25 January 2015	27.7 °C	1,678 mm	165
2014	33.4 °C16 March 2014	19.9 °C24 January 2014	27.4 °C	1,777 mm	146
2013	33.9 °C31 March 2013	21.2 °C28 December 2013	27.4 °C	2,247 mm	130
2012	33.1 °C3 March 2012	23.1 °C5 January 2012	27.4 °C	2,229 mm	124
2011	31.7 °C3 November 2011	21.7 °C18 January 2011	27.1 °C	2,103 mm	96
2010	34.9 °C15 April 2010	22.3 °C31 October 2010	27.7 °C	2,205 mm	158
2009	33.2 °C4 April 2009	20.3 °C11 January 2009	27.3 °C	2,079 mm	121
2008	32.9 °C3 April 2008	22.7 °C20 December 2008	27.0 °C	2,283 mm	94
2007	33.2 °C7 April 2007	20.8 °C31 January 2007	27.2 °C	2,552 mm	112
2006	32.9 °C19 March 2006	22.3 °C23 December 2006	27.4 °C	2,374 mm	138
2005	34.0 °C20 April 2005	20.0 °C23 December 2005	27.4 °C	2,076 mm	124
2004	34.2 °C21 April 2004	22.0 °C15 February 2004	27.4 °C	1,755 mm	136
2003	34.9 °C29 April 2003	22.0 °C13 January 2003	27.5 °C	2,209 mm	137
2002	35.6 °C6 May 2002	21.7 °C1 January 2002	27.7 °C	2,021 mm	177
2001	32.6 °C16 April 2001	21.2 °C31 December 2001	27.3 °C	2,333 mm	94
2000	32.8 °C6 April 2000	22.6 °C22 January 2000	27.1 °C	2,417 mm	87
1999	32.0 °C19 March 1999	18.5 °C25 December 1999	26.8 °C	2,674 mm	60
1998	35.7 °C6 May 1998	20.5 °C16 December 1998	27.9 °C	2,256 mm	186
1997	33.2 °C29 March 1997	21.0 °C12 January 1997	27.3 °C	1,993 mm	160
1996	33.3 °C23 March 1996	20.2 °C2 January 1996	26.9 °C	2,521 mm	95
1995	34.6 °C2 May 1995	20.1 °C31 December 1995	27.3 °C	2,100 mm	142
1994	32.6 °C30 April 1994	21.5 °C25 January 1994	27.0 °C	2,259 mm	120
1993	33.6 °C10 April 1993	20.1 °C31 January 1993	26.9 °C	2,508 mm	105
1992	34.9 °C26 April 1992	20.6 °C20 January 1992	27.1 °C	2,038 mm	113
1991	32.8 °C19 May 1991	22.4 °C15 November 1991	27.2 °C	2,259 mm	136
1990	34.6 °C4 April 1990	22.1 °C3 December 1990	27.5 °C	1,866 mm	130
1989	32.2 °C1 May 1989	21.5 °C15 February 1989	27.0 °C	2,223 mm	92
1988	33.5 °C14 March 1988	21.0 °C16 December 1988	27.3 °C	2,123 mm	128
1987	34.6 °C19 April 1987	21.0 °C8 December 1987	27.4 °C	2,245 mm	134
1986	34.3 °C30 April 1986	20.5 °C4 March 1986	26.8 °C	2,384 mm	67
1985	33.1 °C31 March 1985	20.7 °C17 December 1985	26.9 °C	2,380 mm	90
1984	33.3 °C27 March 1984	21.3 °C9 January 1984	26.8 °C	2,324 mm	72
1983	34.0 °C25 April 1983	20.6 °C26 January 1983	27.1 °C	2,237 mm	121
1982	32.7 °C12 March 1982	20.6 °C20 December 1982	26.8 °C	2,386 mm	89
1981	34.2 °C2 May 1981	20.6 °C21 December 1981	27.0 °C	2,076 mm	103
1980	33.6 °C7 April 1980	21.8 °C24 January 1980	27.1 °C	2,417 mm	118
1979	34.8 °C10 April 1979	21.4 °C27 December 1979	27.2 °C	2,223 mm	127
1978	33.9 °C4 April 1978	21.8 °C25 December 1978	27.1 °C	2,228 mm	111
1977	33.3 °C24 April 1977	21.4 °C17 February 1977	27.0 °C	1,943 mm	113
1976	32.9 °C20 April 1976	19.3 °C1 January 1976	26.6 °C	2,297 mm	73
1975	33.1 °C16 April 1975	18.3 °C31 December 1975	26.5 °C	2,729 mm	54
1974	32.5 °C25 March 1974	19.6 °C5 January 1974	26.7 °C	2,221 mm	79
1973	33.3 °C6 April 1973	19.4 °C29 December 1973	27.1 °C	2,689 mm	129
1972	32.0 °C29 March 1972	20.0 °C13 January 1972	26.8 °C	3,055 mm	75
1971	32.6 °C11 April 1971	19.9 °C16 January 1971	26.4 °C	2,387 mm	54
1970	33.8 °C25 April 1970	21.0 °C23 January 1970	27.0 °C	2,255 mm	94
1969	33.6 °C4 April 1969	21.4 °C22 December 1969	27.1 °C	2,214 mm	108
1968	32.9 °C22 March 1968	20.9 °C14 January 1968	26.9 °C	1,822 mm	102
1967	33.9 °C14 April 1967	18.8 °C17 January 1967	26.6 °C	2,078 mm	88
1966	33.6 °C13 March 1966	22.1 °C1 January 1966	27.0 °C	2,673 mm	97
1965	33.4 °C16 April 1965	19.7 °C17 January 1965	26.6 °C	2,333 mm	75
1964	33.5 °C10 April 1964	20.1 °C19 December 1964	26.9 °C	2,414 mm	106
1963	33.3 °C13 May 1963	17.7 °C16 January 1963	26.6 °C	1,840 mm	85
1962	33.2 °C28 April 1962	19.4 °C28 January 1962	26.7 °C	2,230 mm	89
1961	33.5 °C7 April 1961	18.7 °C19 January 1961	26.7 °C	2,112 mm	80
1960	33.2 °C18 April 1960	19.8 °C3 January 1960	26.9 °C	2,079 mm	88
1959	33.6 °C14 April 1959	20.9 °C19 January 1959	27.0 °C	1,953 mm	123
1958	33.4 °C2 April 1958	21.0 °C6 January 1958	27.1 °C	1,836 mm	125
1957	32.4 °C9 March 1957	20.0 °C2 January 1957	26.8 °C	2,722 mm	108
1956	33.1 °C25 March 1956	20.0 °C30 December 1956	26.5 °C	2,560 mm	78
1955	33.3 °C14 March 1955	18.9 °C12 January 1955	26.7 °C	2,290 mm	98
1954	33.4 °C21 March 1954	20.9 °C18 December 1954	26.8 °C	1,972 mm	106
1953	32.8 °C9 March 1953	21.1 °C9 January 1953	27.0 °C	2,052 mm	95
1952	33.0 °C21 April 1952	20.8 °C12 December 1952	26.9 °C	1,875 mm	119
1951	33.7 °C31 March 1951	21.2 °C16 December 1951	27.1 °C	1,312 mm	129
1950	33.5 °C17 March 1950	21.9 °C19 December 1950	26.9 °C	1,957 mm	84
1949	32.4 °C27 March 1949	21.0 °C16 January 1949	26.7 °C	2,626 mm	84
1948	32.7 °C25 March 1948	19.9 °C2 January 1948	26.7 °C	1,981 mm	116
1947	32.3 °C27 March 1947	21.2 °C30 December 1947	26.8 °C	2,135 mm	95
1946	32.6 °C1 April 1946	19.9 °C7 January 1946	26.6 °C	2,399 mm	59
1945	32.8 °C26 March 1945	20.6 °C29 December 1945	26.3 °C	3,105 mm	28
1944	33.2 °C18 April 1944	19.4 °C21 December 1944	26.6 °C	2,602 mm	100
1943	31.4 °C7 February 1943	20.2 °C25 January 1943	26.0 °C	2,632 mm	44
1942	33.8 °C24 April 1942	20.7 °C24 November 1942	26.5 °C	2,050 mm	70
1941	32.6 °C3 March 1941	22.8 °C19 January 1941	26.6 °C	3,021 mm	72
1940	32.5 °C28 March 1940	18.7 °C4 January 1940	26.3 °C	3,518 mm	67

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

29.6 °C

+0.3 °C

Hot days (≥ 30 °C)

123 d/yr

+13

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2252 mm

-18 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.7 °C	-0.1 °C	12 mm	-6 mm
Feb	29.8 °C	-0.2 °C	25 mm	+11 mm
Mar	31.3 °C	+0.2 °C	26 mm	-9 mm
Apr	30.9 °C	-0.4 °C	148 mm	+57 mm
May	30.3 °C	+0.2 °C	340 mm	+82 mm
Jun	29.2 °C	+0.2 °C	324 mm	-1 mm
Jul	29.2 °C	+0.7 °C	231 mm	-113 mm
Aug	29.0 °C	+0.7 °C	309 mm	-38 mm
Sep	28.9 °C	+0.6 °C	272 mm	-90 mm
Oct	29.5 °C	+0.7 °C	324 mm	+30 mm
Nov	28.8 °C	-0.3 °C	166 mm	+33 mm
Dec	29.4 °C	+0.8 °C	75 mm	+25 mm

The year's extremes

Hottest day

32.6 °C

14 Mar 2025

Coldest day

21.2 °C

13 Jan 2025

Wettest day

69.4 mm

22 Jun 2025

Windiest day

33.0 km/h

25 Aug 2025

Strongest gust

54.0 km/h

21 Jul 2025

Hottest feels-like

39.7 °C

13 Apr 2025

Coldest feels-like

18.9 °C

13 Jan 2025

Sunniest day

12.0 h

24 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 Rach Gia?

Rach Gia has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 2,270 mm of precipitation per year.

What is the hottest day ever recorded in Rach Gia?

The hottest day measured in Rach Gia between 1940 and 2025 was 6 May 1998, reaching 35.7 °C.

What is the coldest day in Rach Gia?

The coldest day measured in Rach Gia between 1940 and 2025 was 16 January 1963, at 17.7 °C.

Does it snow in Rach Gia?

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

Has the climate of Rach Gia warmed?

Yes: Rach Gia warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Rach Gia?

The wettest day measured in Rach Gia between 1940 and 2025 was 2 December 1972, with 154 mm of rain in 24 hours.

What was the windiest day in Rach Gia?

The windiest day measured in Rach Gia between 1940 and 2025 was 29 September 2009, with winds reaching 42.9 km/h.

What is the warmest month in Rach Gia?

The warmest month in Rach Gia is April (28.3 °C on average); the coldest is January (25.8 °C).

How much does it rain in Rach Gia?

Rach Gia receives on average 2,270 mm of precipitation per year, spread over about 227 rainy days.

Is it sunny in Rach Gia?

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

Are there tropical nights in Rach Gia?

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

What was the most extreme apparent temperature in Rach Gia?

In Rach Gia, between 1940 and 2025, the highest apparent temperature reached 42.5 °C on 4 May 2024, and the lowest was 15.5 °C on 25 December 1999.

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