Lomas del Sur climate — normals and trends

Q: What is the climate of Lomas del Sur?

Lomas del Sur has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 19.6 °C and it receives 681 mm of precipitation per year.

Q: What is the hottest day ever recorded in Lomas del Sur?

The hottest day measured in Lomas del Sur between 1940 and 2025 was 4 May 2003, reaching 37.9 °C.

Q: What is the coldest day in Lomas del Sur?

The coldest day measured in Lomas del Sur between 1940 and 2025 was 11 January 1997, at 1.0 °C.

Q: Does it snow in Lomas del Sur?

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

Q: Has the climate of Lomas del Sur warmed?

Yes: Lomas del Sur warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Lomas del Sur?

The wettest day measured in Lomas del Sur between 1940 and 2025 was 12 January 1967, with 76 mm of rain in 24 hours.

Q: What was the windiest day in Lomas del Sur?

The windiest day measured in Lomas del Sur between 1940 and 2025 was 4 March 1983, with winds reaching 27.9 km/h.

Q: What is the warmest month in Lomas del Sur?

The warmest month in Lomas del Sur is May (23.3 °C on average); the coldest is January (15.8 °C).

Q: How much does it rain in Lomas del Sur?

Lomas del Sur receives on average 681 mm of precipitation per year, spread over about 107 rainy days.

Q: Is it sunny in Lomas del Sur?

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

Lomas del Sur (Mexico) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 19.6 °C and it receives 681 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 (23.3 °C on average) and the coldest is January (15.8 °C). Rainfall peaks in July.

Lomas del Sur averages 0 frost days, 73 hot days (≥ 30 °C) and 107 rainy days per year.

Lomas del Sur has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.

The hottest day of the period reached 37.9 °C (on 4 May 2003) and the coldest 1.0 °C (on 11 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

Lomas del SurJalisco

coords: 20.49°, -103.42°
period: 1940–2025 · 86 yrs

CsaHot-summer MediterraneanWarmest monthMayColdest monthJanuaryWettest monthJulyDriest monthMarch

Mean daily temperature

19.6°C

Average daily high

27.2°C

Average daily low

13.2°C

Annual rainfall

681mm

Sunshine / day

10.7h

Mean relative humidity

60%

Average peak wind

11.0km/h

Seasonal range

7.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

73 d/yr

Rainy days (≥ 1 mm)

107 d/yr

Annual snowfall

0.0 cm

Average feels-like high

27.3 °C

Average feels-like low

12.9 °C

Average peak gust

31.8 km/h

Tropical nights (≥ 20 °C)

1 d/yr

Solar radiation

21.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.0 °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

37.9 °C

4 May 2003

Coldest day

1.0 °C

11 January 1997

Wettest day

76 mm

12 January 1967

Windiest day

27.9 km/h

4 March 1983

Strongest gust

81.0 km/h

2 March 2001

Hottest feels-like

38.9 °C

28 May 2024

Coldest feels-like

-3.4 °C

14 December 1997

Sunniest day

13.2 h

21 June 1945

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.2 °C21 May 2025	5.9 °C18 December 2025	20.9 °C	834 mm	106
2024	37.7 °C6 June 2024	4.7 °C27 December 2024	21.3 °C	813 mm	118
2023	37.7 °C13 June 2023	4.3 °C17 January 2023	21.2 °C	588 mm	152
2022	36.1 °C10 May 2022	5.3 °C23 March 2022	20.6 °C	704 mm	100
2021	35.7 °C27 May 2021	2.0 °C2 January 2021	20.5 °C	890 mm	107
2020	35.5 °C4 June 2020	4.6 °C5 January 2020	20.9 °C	682 mm	117
2019	34.5 °C1 May 2019	3.7 °C28 January 2019	20.7 °C	708 mm	115
2018	37.1 °C1 June 2018	3.8 °C21 December 2018	20.1 °C	838 mm	78
2017	36.2 °C22 May 2017	6.0 °C28 January 2017	20.6 °C	678 mm	94
2016	35.8 °C25 May 2016	2.6 °C10 March 2016	20.4 °C	650 mm	87
2015	33.9 °C11 May 2015	5.8 °C15 December 2015	20.2 °C	847 mm	46
2014	33.5 °C20 May 2014	5.4 °C10 January 2014	19.8 °C	777 mm	68
2013	35.3 °C1 June 2013	6.3 °C4 March 2013	20.1 °C	927 mm	83
2012	35.4 °C31 May 2012	5.4 °C9 January 2012	20.5 °C	592 mm	95
2011	37.2 °C26 May 2011	3.0 °C20 January 2011	20.6 °C	588 mm	104
2010	35.8 °C5 June 2010	3.8 °C17 January 2010	19.6 °C	997 mm	74
2009	35.1 °C7 May 2009	4.4 °C23 December 2009	20.5 °C	576 mm	103
2008	35.6 °C11 May 2008	3.9 °C12 January 2008	19.9 °C	857 mm	66
2007	35.8 °C8 June 2007	5.6 °C13 February 2007	20.0 °C	699 mm	75
2006	34.6 °C7 May 2006	2.9 °C26 December 2006	20.2 °C	727 mm	99
2005	37.3 °C9 June 2005	5.9 °C13 January 2005	20.4 °C	560 mm	100
2004	33.0 °C19 March 2004	3.5 °C1 February 2004	19.6 °C	749 mm	51
2003	37.9 °C4 May 2003	4.6 °C23 December 2003	20.6 °C	672 mm	105
2002	36.2 °C4 May 2002	4.5 °C2 January 2002	20.5 °C	634 mm	102
2001	35.7 °C22 May 2001	4.5 °C28 December 2001	20.2 °C	592 mm	96
2000	35.3 °C20 April 2000	4.8 °C20 January 2000	20.2 °C	541 mm	81
1999	37.3 °C1 June 1999	2.0 °C21 December 1999	20.1 °C	627 mm	91
1998	36.5 °C13 May 1998	3.1 °C17 February 1998	20.4 °C	717 mm	104
1997	34.8 °C3 May 1997	1.0 °C11 January 1997	19.3 °C	714 mm	42
1996	34.5 °C25 May 1996	4.5 °C15 January 1996	20.0 °C	745 mm	58
1995	36.8 °C9 June 1995	4.9 °C27 November 1995	20.4 °C	769 mm	75
1994	35.9 °C9 May 1994	5.3 °C6 January 1994	20.6 °C	600 mm	92
1993	35.5 °C8 June 1993	3.1 °C11 February 1993	19.8 °C	692 mm	77
1992	34.3 °C28 June 1992	3.3 °C8 February 1992	19.0 °C	998 mm	55
1991	36.1 °C20 April 1991	2.9 °C16 January 1991	19.8 °C	847 mm	91
1990	35.4 °C27 May 1990	3.7 °C21 February 1990	19.7 °C	827 mm	54
1989	36.2 °C19 May 1989	4.9 °C27 December 1989	19.9 °C	703 mm	81
1988	35.9 °C28 April 1988	1.5 °C22 January 1988	20.1 °C	708 mm	75
1987	34.1 °C22 May 1987	2.5 °C22 January 1987	19.6 °C	607 mm	61
1986	36.5 °C12 May 1986	1.7 °C7 February 1986	19.4 °C	766 mm	69
1985	34.6 °C23 May 1985	4.3 °C6 January 1985	19.2 °C	721 mm	56
1984	34.5 °C28 April 1984	3.6 °C12 January 1984	19.1 °C	884 mm	65
1983	36.6 °C1 May 1983	3.3 °C2 February 1983	19.1 °C	726 mm	72
1982	36.4 °C4 June 1982	4.5 °C4 December 1982	20.1 °C	541 mm	93
1981	34.6 °C15 May 1981	3.4 °C25 January 1981	19.5 °C	860 mm	51
1980	36.1 °C1 June 1980	4.4 °C27 January 1980	19.8 °C	802 mm	78
1979	34.0 °C3 May 1979	3.6 °C26 November 1979	19.8 °C	578 mm	85
1978	35.1 °C10 May 1978	2.9 °C13 February 1978	19.4 °C	862 mm	59
1977	34.2 °C21 May 1977	5.1 °C6 January 1977	19.2 °C	791 mm	51
1976	34.9 °C27 May 1976	2.6 °C1 January 1976	19.1 °C	709 mm	59
1975	33.8 °C10 May 1975	1.9 °C27 December 1975	19.0 °C	686 mm	72
1974	34.4 °C17 May 1974	7.4 °C28 January 1974	19.0 °C	693 mm	42
1973	35.2 °C26 May 1973	4.0 °C22 January 1973	19.2 °C	791 mm	66
1972	34.8 °C22 May 1972	5.0 °C11 February 1972	19.7 °C	486 mm	54
1971	34.5 °C19 May 1971	4.7 °C5 January 1971	19.1 °C	588 mm	51
1970	33.8 °C25 April 1970	3.9 °C15 January 1970	19.1 °C	557 mm	69
1969	35.3 °C14 June 1969	4.7 °C11 December 1969	19.6 °C	409 mm	74
1968	33.0 °C10 June 1968	4.9 °C12 March 1968	18.9 °C	569 mm	53
1967	34.7 °C8 May 1967	2.4 °C8 February 1967	18.8 °C	770 mm	48
1966	34.9 °C13 May 1966	3.6 °C31 January 1966	18.8 °C	638 mm	50
1965	35.2 °C28 May 1965	3.8 °C23 January 1965	19.1 °C	656 mm	81
1964	35.1 °C1 May 1964	4.7 °C1 January 1964	19.4 °C	481 mm	71
1963	34.2 °C23 April 1963	3.8 °C18 February 1963	19.0 °C	747 mm	60
1962	34.5 °C8 June 1962	5.4 °C14 January 1962	19.4 °C	534 mm	75
1961	34.6 °C7 May 1961	4.3 °C4 February 1961	19.2 °C	532 mm	60
1960	34.1 °C2 June 1960	2.1 °C13 February 1960	19.2 °C	586 mm	78
1959	31.4 °C28 April 1959	5.5 °C17 December 1959	18.4 °C	905 mm	17
1958	34.7 °C10 May 1958	3.1 °C25 January 1958	18.8 °C	810 mm	67
1957	34.6 °C15 June 1957	4.8 °C25 March 1957	20.0 °C	338 mm	91
1956	34.4 °C8 May 1956	2.3 °C13 January 1956	19.3 °C	444 mm	60
1955	35.0 °C21 May 1955	1.1 °C24 January 1955	19.2 °C	552 mm	81
1954	34.6 °C4 June 1954	6.1 °C21 December 1954	19.5 °C	427 mm	60
1953	35.1 °C22 May 1953	4.7 °C14 December 1953	19.1 °C	480 mm	66
1952	34.6 °C9 May 1952	4.5 °C4 February 1952	19.0 °C	549 mm	61
1951	34.2 °C10 June 1951	5.0 °C4 February 1951	19.7 °C	566 mm	71
1950	34.0 °C17 May 1950	2.9 °C14 February 1950	19.2 °C	512 mm	63
1949	34.8 °C21 May 1949	5.2 °C8 November 1949	19.1 °C	596 mm	67
1948	33.9 °C2 May 1948	3.4 °C25 January 1948	18.6 °C	940 mm	50
1947	32.8 °C6 April 1947	3.1 °C2 January 1947	18.5 °C	664 mm	49
1946	35.3 °C19 May 1946	3.4 °C8 January 1946	19.0 °C	584 mm	64
1945	34.9 °C12 June 1945	4.3 °C13 February 1945	19.2 °C	554 mm	83
1944	34.2 °C5 June 1944	5.1 °C7 December 1944	18.5 °C	682 mm	56
1943	34.3 °C18 May 1943	5.8 °C25 January 1943	18.3 °C	799 mm	41
1942	33.8 °C19 May 1942	3.4 °C29 December 1942	18.9 °C	489 mm	51
1941	33.5 °C9 May 1941	4.1 °C27 December 1941	18.4 °C	737 mm	46
1940	33.8 °C1 May 1940	3.2 °C18 February 1940	18.5 °C	662 mm	44

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

28.7 °C

+1.5 °C

Hot days (≥ 30 °C)

106 d/yr

+33

Frost days (< 0 °C)

0 d/yr

Annual rainfall

834 mm

+153 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	25.6 °C	+1.7 °C	5 mm	-14 mm
Feb	28.7 °C	+2.8 °C	3 mm	-7 mm
Mar	30.8 °C	+2.1 °C	0 mm	-5 mm
Apr	32.0 °C	+1.1 °C	0 mm	-6 mm
May	33.1 °C	+1.1 °C	18 mm	+1 mm
Jun	28.9 °C	-0.5 °C	194 mm	+80 mm
Jul	27.7 °C	+1.2 °C	147 mm	-20 mm
Aug	28.0 °C	+1.5 °C	207 mm	+55 mm
Sep	27.8 °C	+1.7 °C	211 mm	+88 mm
Oct	28.3 °C	+2.1 °C	31 mm	-14 mm
Nov	28.3 °C	+2.5 °C	0 mm	-11 mm
Dec	25.7 °C	+1.5 °C	16 mm	+5 mm

The year's extremes

Hottest day

36.2 °C

21 May 2025

Coldest day

5.9 °C

18 Dec 2025

Wettest day

40.4 mm

30 Sep 2025

Windiest day

22.7 km/h

10 Oct 2025

Strongest gust

57.6 km/h

10 Oct 2025

Hottest feels-like

36.9 °C

21 May 2025

Coldest feels-like

4.2 °C

18 Dec 2025

Sunniest day

12.7 h

27 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 Lomas del Sur?

Lomas del Sur has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 19.6 °C and it receives 681 mm of precipitation per year.

What is the hottest day ever recorded in Lomas del Sur?

The hottest day measured in Lomas del Sur between 1940 and 2025 was 4 May 2003, reaching 37.9 °C.

What is the coldest day in Lomas del Sur?

The coldest day measured in Lomas del Sur between 1940 and 2025 was 11 January 1997, at 1.0 °C.

Does it snow in Lomas del Sur?

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

Has the climate of Lomas del Sur warmed?

Yes: Lomas del Sur warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Lomas del Sur?

The wettest day measured in Lomas del Sur between 1940 and 2025 was 12 January 1967, with 76 mm of rain in 24 hours.

What was the windiest day in Lomas del Sur?

The windiest day measured in Lomas del Sur between 1940 and 2025 was 4 March 1983, with winds reaching 27.9 km/h.

What is the warmest month in Lomas del Sur?

The warmest month in Lomas del Sur is May (23.3 °C on average); the coldest is January (15.8 °C).

How much does it rain in Lomas del Sur?

Lomas del Sur receives on average 681 mm of precipitation per year, spread over about 107 rainy days.

Is it sunny in Lomas del Sur?

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

Are there tropical nights in Lomas del Sur?

Yes: Lomas del Sur has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Lomas del Sur?

In Lomas del Sur, between 1940 and 2025, the highest apparent temperature reached 38.9 °C on 28 May 2024, and the lowest was -3.4 °C on 14 December 1997.

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