Zihuatanejo climate — normals and trends

Q: What is the climate of Zihuatanejo?

Zihuatanejo has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 1,321 mm of precipitation per year.

Q: What is the hottest day ever recorded in Zihuatanejo?

The hottest day measured in Zihuatanejo between 1940 and 2025 was 5 May 1997, reaching 34.9 °C.

Q: What is the coldest day in Zihuatanejo?

The coldest day measured in Zihuatanejo between 1940 and 2025 was 12 January 1997, at 11.6 °C.

Q: Does it snow in Zihuatanejo?

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

Q: Has the climate of Zihuatanejo warmed?

Yes: Zihuatanejo warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Zihuatanejo?

The wettest day measured in Zihuatanejo between 1940 and 2025 was 16 September 1988, with 337 mm of rain in 24 hours.

Q: What was the windiest day in Zihuatanejo?

The windiest day measured in Zihuatanejo between 1940 and 2025 was 8 September 1948, with winds reaching 40.7 km/h.

Q: What is the warmest month in Zihuatanejo?

The warmest month in Zihuatanejo is May (25.5 °C on average); the coldest is January (22.9 °C).

Q: How much does it rain in Zihuatanejo?

Zihuatanejo receives on average 1,321 mm of precipitation per year, spread over about 132 rainy days.

Q: Is it sunny in Zihuatanejo?

Zihuatanejo gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Zihuatanejo (Mexico) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.4 °C and it receives 1,321 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 May (25.5 °C on average) and the coldest is January (22.9 °C). Rainfall peaks in September.

Zihuatanejo averages 0 frost days, 66 hot days (≥ 30 °C) and 132 rainy days per year.

Zihuatanejo has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.

The hottest day of the period reached 34.9 °C (on 5 May 1997) and the coldest 11.6 °C (on 12 January 1997).

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

ZihuatanejoGuerrero

coords: 17.64°, -101.55°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthMayColdest monthJanuaryWettest monthSeptemberDriest monthApril

Mean daily temperature

24.4°C

Average daily high

28.5°C

Average daily low

20.8°C

Annual rainfall

1,321mm

Sunshine / day

10.7h

Mean relative humidity

75%

Average peak wind

10.2km/h

Seasonal range

2.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

66 d/yr

Rainy days (≥ 1 mm)

132 d/yr

Annual snowfall

0.0 cm

Average feels-like high

32.6 °C

Average feels-like low

23.0 °C

Average peak gust

29.1 km/h

Tropical nights (≥ 20 °C)

237 d/yr

Solar radiation

20.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.8 °C

since 1940

+0.2 °C per decade · r² = 0.72 · 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

34.9 °C

5 May 1997

Coldest day

11.6 °C

12 January 1997

Wettest day

337 mm

16 September 1988

Windiest day

40.7 km/h

8 September 1948

Strongest gust

106.6 km/h

22 June 1973

Hottest feels-like

40.3 °C

24 July 1997

Coldest feels-like

9.7 °C

12 January 1997

Sunniest day

12.8 h

27 May 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	32.6 °C20 July 2025	15.9 °C30 March 2025	25.3 °C	1,084 mm	97
2024	32.3 °C15 July 2024	14.8 °C27 March 2024	25.1 °C	1,153 mm	108
2023	32.7 °C20 May 2023	16.2 °C19 January 2023	25.3 °C	1,057 mm	99
2022	32.0 °C12 May 2022	16.4 °C24 March 2022	24.5 °C	1,065 mm	40
2021	32.6 °C12 May 2021	13.5 °C16 February 2021	24.7 °C	1,631 mm	73
2020	33.1 °C7 April 2020	16.2 °C29 January 2020	25.0 °C	958 mm	103
2019	33.1 °C7 August 2019	16.2 °C14 April 2019	24.9 °C	1,209 mm	105
2018	32.5 °C3 May 2018	16.0 °C21 December 2018	25.0 °C	1,069 mm	98
2017	32.6 °C7 April 2017	16.9 °C24 February 2017	24.8 °C	1,287 mm	52
2016	33.3 °C6 July 2016	13.9 °C11 March 2016	25.3 °C	1,310 mm	116
2015	34.3 °C1 July 2015	17.8 °C27 February 2015	25.9 °C	1,031 mm	193
2014	33.1 °C31 July 2014	16.9 °C13 March 2014	25.2 °C	1,117 mm	100
2013	32.9 °C2 March 2013	17.1 °C16 February 2013	25.0 °C	1,294 mm	69
2012	31.9 °C8 June 2012	15.7 °C21 March 2012	24.9 °C	1,267 mm	67
2011	33.6 °C4 May 2011	14.4 °C19 January 2011	24.7 °C	1,655 mm	75
2010	32.6 °C9 May 2010	15.5 °C17 December 2010	24.3 °C	2,148 mm	36
2009	32.4 °C6 June 2009	15.3 °C7 January 2009	25.0 °C	768 mm	101
2008	32.3 °C25 June 2008	15.4 °C8 March 2008	24.4 °C	1,148 mm	68
2007	32.4 °C9 July 2007	15.5 °C1 March 2007	24.8 °C	1,161 mm	72
2006	32.0 °C30 June 2006	15.3 °C26 December 2006	24.9 °C	1,380 mm	52
2005	32.3 °C16 April 2005	15.6 °C22 March 2005	24.7 °C	1,527 mm	57
2004	33.5 °C25 March 2004	14.0 °C19 January 2004	25.0 °C	924 mm	117
2003	33.6 °C22 May 2003	13.3 °C20 March 2003	24.8 °C	976 mm	109
2002	34.5 °C12 May 2002	15.2 °C14 January 2002	25.3 °C	1,246 mm	154
2001	33.3 °C19 April 2001	14.7 °C31 March 2001	25.1 °C	1,058 mm	141
2000	32.9 °C27 April 2000	14.7 °C17 March 2000	24.7 °C	1,328 mm	104
1999	34.5 °C18 April 1999	13.0 °C22 December 1999	24.6 °C	1,504 mm	113
1998	34.3 °C11 June 1998	14.0 °C16 February 1998	24.7 °C	1,444 mm	105
1997	34.9 °C5 May 1997	11.6 °C12 January 1997	25.2 °C	1,215 mm	154
1996	33.3 °C6 May 1996	14.3 °C3 January 1996	24.6 °C	1,472 mm	96
1995	33.6 °C3 March 1995	16.8 °C8 March 1995	25.0 °C	1,390 mm	108
1994	32.9 °C11 July 1994	16.9 °C11 January 1994	25.3 °C	484 mm	197
1993	32.9 °C12 May 1993	15.8 °C17 March 1993	24.7 °C	1,278 mm	104
1992	33.0 °C12 May 1992	13.0 °C5 February 1992	24.8 °C	1,419 mm	95
1991	34.2 °C12 June 1991	14.5 °C17 January 1991	24.8 °C	953 mm	76
1990	33.4 °C11 April 1990	15.8 °C8 January 1990	25.3 °C	1,244 mm	120
1989	33.3 °C9 February 1989	15.1 °C5 March 1989	24.4 °C	1,517 mm	49
1988	32.1 °C7 June 1988	13.9 °C21 January 1988	24.4 °C	1,837 mm	54
1987	32.8 °C12 May 1987	15.5 °C30 January 1987	24.9 °C	1,313 mm	87
1986	32.2 °C17 May 1986	14.1 °C15 March 1986	24.5 °C	948 mm	77
1985	33.1 °C23 May 1985	16.1 °C8 February 1985	24.4 °C	1,285 mm	87
1984	32.6 °C18 May 1984	14.7 °C20 November 1984	24.4 °C	1,491 mm	70
1983	32.1 °C12 January 1983	13.6 °C23 January 1983	24.4 °C	1,261 mm	57
1982	32.8 °C24 April 1982	15.0 °C6 December 1982	25.1 °C	1,277 mm	92
1981	33.1 °C14 February 1981	13.7 °C24 January 1981	24.6 °C	1,725 mm	64
1980	33.3 °C8 June 1980	16.2 °C17 January 1980	25.2 °C	1,079 mm	115
1979	33.3 °C7 April 1979	14.4 °C14 January 1979	24.5 °C	1,286 mm	72
1978	31.3 °C28 April 1978	15.6 °C9 March 1978	24.4 °C	1,407 mm	23
1977	31.4 °C22 April 1977	16.7 °C6 January 1977	24.6 °C	1,164 mm	20
1976	31.8 °C8 May 1976	14.1 °C5 March 1976	24.2 °C	1,208 mm	37
1975	31.1 °C19 May 1975	14.5 °C29 December 1975	23.7 °C	1,385 mm	14
1974	33.1 °C25 April 1974	15.9 °C4 January 1974	23.7 °C	1,604 mm	25
1973	32.5 °C30 April 1973	15.3 °C8 April 1973	23.8 °C	1,768 mm	27
1972	32.0 °C20 February 1972	15.3 °C8 February 1972	24.4 °C	1,443 mm	49
1971	31.0 °C29 March 1971	14.9 °C9 February 1971	23.6 °C	1,232 mm	22
1970	31.9 °C5 May 1970	14.5 °C15 January 1970	23.7 °C	1,529 mm	22
1969	32.3 °C23 May 1969	15.9 °C15 February 1969	24.1 °C	1,393 mm	42
1968	30.8 °C12 April 1968	13.4 °C13 March 1968	23.7 °C	1,231 mm	9
1967	31.5 °C18 May 1967	15.1 °C11 February 1967	23.9 °C	1,322 mm	41
1966	31.8 °C19 March 1966	15.7 °C9 December 1966	24.0 °C	1,289 mm	54
1965	32.1 °C30 April 1965	13.8 °C23 February 1965	23.8 °C	1,187 mm	48
1964	32.2 °C14 May 1964	15.7 °C22 February 1964	23.8 °C	1,234 mm	41
1963	32.2 °C22 May 1963	14.0 °C19 February 1963	23.9 °C	1,312 mm	47
1962	31.9 °C3 April 1962	14.8 °C7 January 1962	23.7 °C	822 mm	36
1961	32.4 °C1 June 1961	14.5 °C19 March 1961	23.9 °C	1,213 mm	49
1960	31.9 °C16 April 1960	15.3 °C13 February 1960	23.7 °C	1,261 mm	37
1959	31.9 °C22 May 1959	16.2 °C18 December 1959	24.0 °C	1,276 mm	49
1958	33.8 °C13 May 1958	14.6 °C27 February 1958	23.9 °C	1,409 mm	51
1957	33.4 °C7 May 1957	14.1 °C7 March 1957	23.9 °C	1,252 mm	27
1956	31.6 °C8 April 1956	14.3 °C17 January 1956	23.4 °C	1,705 mm	26
1955	32.6 °C1 May 1955	13.8 °C24 January 1955	23.3 °C	2,178 mm	30
1954	31.2 °C21 May 1954	16.0 °C21 December 1954	23.9 °C	1,682 mm	31
1953	31.6 °C17 April 1953	16.3 °C17 January 1953	23.9 °C	1,189 mm	32
1952	31.3 °C12 January 1952	14.1 °C26 March 1952	23.7 °C	1,451 mm	29
1951	31.2 °C28 April 1951	15.4 °C20 January 1951	24.0 °C	1,362 mm	34
1950	30.8 °C14 April 1950	14.7 °C21 March 1950	23.6 °C	1,895 mm	21
1949	31.7 °C27 May 1949	15.7 °C1 March 1949	23.7 °C	1,515 mm	23
1948	31.5 °C15 April 1948	16.6 °C21 January 1948	23.9 °C	1,942 mm	33
1947	31.7 °C18 April 1947	15.4 °C20 March 1947	23.5 °C	1,757 mm	23
1946	32.4 °C1 April 1946	14.6 °C1 March 1946	23.9 °C	986 mm	50
1945	32.6 °C1 May 1945	14.5 °C2 April 1945	23.5 °C	1,352 mm	18
1944	31.2 °C6 May 1944	15.3 °C21 March 1944	23.5 °C	1,863 mm	15
1943	31.2 °C16 April 1943	16.2 °C20 March 1943	23.6 °C	1,404 mm	25
1942	31.8 °C7 April 1942	14.4 °C13 March 1942	23.6 °C	1,159 mm	36
1941	32.0 °C26 April 1941	14.8 °C26 February 1941	23.7 °C	1,048 mm	42
1940	31.5 °C14 May 1940	14.2 °C6 January 1940	23.7 °C	900 mm	35

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

29.3 °C

+0.8 °C

Hot days (≥ 30 °C)

97 d/yr

+31

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1084 mm

-237 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.7 °C	+0.7 °C	24 mm	+11 mm
Feb	29.1 °C	+0.7 °C	1 mm	-3 mm
Mar	28.8 °C	0.0 °C	0 mm	-4 mm
Apr	28.9 °C	-0.7 °C	0 mm	-1 mm
May	30.1 °C	0.0 °C	11 mm	-6 mm
Jun	28.9 °C	+0.2 °C	379 mm	+177 mm
Jul	30.2 °C	+1.7 °C	90 mm	-134 mm
Aug	29.8 °C	+1.5 °C	97 mm	-148 mm
Sep	29.2 °C	+1.5 °C	187 mm	-163 mm
Oct	28.9 °C	+1.0 °C	287 mm	+72 mm
Nov	29.2 °C	+1.2 °C	6 mm	-30 mm
Dec	29.4 °C	+1.4 °C	2 mm	-5 mm

The year's extremes

Hottest day

32.6 °C

20 Jul 2025

Coldest day

15.9 °C

30 Mar 2025

Wettest day

69.5 mm

8 Oct 2025

Windiest day

18.1 km/h

14 Jun 2025

Strongest gust

52.2 km/h

14 Jun 2025

Hottest feels-like

39.2 °C

20 Jul 2025

Coldest feels-like

14.2 °C

30 Mar 2025

Sunniest day

12.7 h

21 May 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 Zihuatanejo?

Zihuatanejo has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 1,321 mm of precipitation per year.

What is the hottest day ever recorded in Zihuatanejo?

The hottest day measured in Zihuatanejo between 1940 and 2025 was 5 May 1997, reaching 34.9 °C.

What is the coldest day in Zihuatanejo?

The coldest day measured in Zihuatanejo between 1940 and 2025 was 12 January 1997, at 11.6 °C.

Does it snow in Zihuatanejo?

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

Has the climate of Zihuatanejo warmed?

Yes: Zihuatanejo warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Zihuatanejo?

The wettest day measured in Zihuatanejo between 1940 and 2025 was 16 September 1988, with 337 mm of rain in 24 hours.

What was the windiest day in Zihuatanejo?

The windiest day measured in Zihuatanejo between 1940 and 2025 was 8 September 1948, with winds reaching 40.7 km/h.

What is the warmest month in Zihuatanejo?

The warmest month in Zihuatanejo is May (25.5 °C on average); the coldest is January (22.9 °C).

How much does it rain in Zihuatanejo?

Zihuatanejo receives on average 1,321 mm of precipitation per year, spread over about 132 rainy days.

Is it sunny in Zihuatanejo?

Zihuatanejo gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Are there tropical nights in Zihuatanejo?

Yes: Zihuatanejo has on average 237 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Zihuatanejo?

In Zihuatanejo, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 24 July 1997, and the lowest was 9.7 °C on 12 January 1997.

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