Caguas climate — normals and trends

Q: What is the climate of Caguas?

Caguas has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 1,258 mm of precipitation per year.

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

The hottest day measured in Caguas between 1940 and 2025 was 18 August 2024, reaching 32.6 °C.

Q: What is the coldest day in Caguas?

The coldest day measured in Caguas between 1940 and 2025 was 12 March 1951, at 17.4 °C.

Q: Does it snow in Caguas?

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

Q: Has the climate of Caguas warmed?

Yes: Caguas warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Caguas?

The wettest day measured in Caguas between 1940 and 2025 was 18 September 2022, with 168 mm of rain in 24 hours.

Q: What was the windiest day in Caguas?

The windiest day measured in Caguas between 1940 and 2025 was 20 September 2017, with winds reaching 65.4 km/h.

Q: What is the warmest month in Caguas?

The warmest month in Caguas is August (26.4 °C on average); the coldest is January (23.3 °C).

Q: How much does it rain in Caguas?

Caguas receives on average 1,258 mm of precipitation per year, spread over about 255 rainy days.

Q: Is it sunny in Caguas?

Caguas gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.

Caguas (Puerto Rico) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.0 °C and it receives 1,258 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 August (26.4 °C on average) and the coldest is January (23.3 °C). Rainfall peaks in September.

Caguas averages 0 frost days, 26 hot days (≥ 30 °C) and 255 rainy days per year.

Caguas has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The hottest day of the period reached 32.6 °C (on 18 August 2024) and the coldest 17.4 °C (on 12 March 1951).

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

CaguasCaguas

coords: 18.23°, -66.05°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAugustColdest monthJanuaryWettest monthSeptemberDriest monthFebruary

Mean daily temperature

25.0°C

Average daily high

27.9°C

Average daily low

22.8°C

Annual rainfall

1,258mm

Sunshine / day

11.3h

Mean relative humidity

83%

Average peak wind

15.6km/h

Seasonal range

3.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

26 d/yr

Rainy days (≥ 1 mm)

255 d/yr

Annual snowfall

0.0 cm

Average feels-like high

31.9 °C

Average feels-like low

26.3 °C

Average peak gust

36.5 km/h

Tropical nights (≥ 20 °C)

353 d/yr

Solar radiation

20.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.74 · 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

32.6 °C

18 August 2024

Coldest day

17.4 °C

12 March 1951

Wettest day

168 mm

18 September 2022

Windiest day

65.4 km/h

20 September 2017

Strongest gust

137.9 km/h

20 September 2017

Hottest feels-like

39.7 °C

18 June 2024

Coldest feels-like

17.0 °C

16 January 2000

Sunniest day

13.0 h

14 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	31.6 °C28 September 2025	19.9 °C28 December 2025	25.9 °C	1,236 mm	50
2024	32.6 °C18 August 2024	21.0 °C23 February 2024	26.6 °C	1,711 mm	140
2023	32.2 °C16 October 2023	20.4 °C9 March 2023	26.1 °C	1,283 mm	119
2022	31.4 °C5 June 2022	20.3 °C5 February 2022	25.5 °C	1,449 mm	28
2021	31.4 °C23 September 2021	20.9 °C11 April 2021	25.7 °C	940 mm	50
2020	31.3 °C3 August 2020	20.7 °C27 March 2020	25.9 °C	1,132 mm	75
2019	32.2 °C21 September 2019	20.6 °C26 January 2019	25.7 °C	934 mm	55
2018	30.7 °C13 September 2018	20.3 °C24 February 2018	25.4 °C	1,043 mm	5
2017	31.3 °C12 September 2017	19.0 °C19 January 2017	25.7 °C	1,502 mm	35
2016	31.2 °C29 August 2016	20.8 °C14 February 2016	25.8 °C	1,458 mm	54
2015	32.0 °C5 October 2015	20.8 °C17 March 2015	25.8 °C	813 mm	87
2014	31.7 °C26 August 2014	20.8 °C12 March 2014	25.7 °C	999 mm	71
2013	31.7 °C29 September 2013	20.3 °C9 March 2013	25.4 °C	1,362 mm	37
2012	31.8 °C21 June 2012	20.3 °C19 February 2012	25.6 °C	1,230 mm	74
2011	31.4 °C29 September 2011	20.2 °C11 March 2011	25.2 °C	1,671 mm	32
2010	31.7 °C5 August 2010	19.7 °C24 December 2010	25.7 °C	1,450 mm	62
2009	31.5 °C26 August 2009	19.5 °C1 January 2009	25.5 °C	1,160 mm	60
2008	31.7 °C5 September 2008	19.7 °C28 January 2008	25.1 °C	1,348 mm	34
2007	31.2 °C22 August 2007	20.4 °C10 January 2007	25.5 °C	1,300 mm	54
2006	31.4 °C30 September 2006	20.1 °C1 February 2006	25.4 °C	1,280 mm	40
2005	31.9 °C21 May 2005	18.3 °C5 February 2005	25.5 °C	1,667 mm	64
2004	30.8 °C8 August 2004	18.9 °C29 March 2004	25.2 °C	1,323 mm	33
2003	31.0 °C5 September 2003	19.7 °C30 December 2003	25.3 °C	1,295 mm	21
2002	30.9 °C7 September 2002	20.0 °C25 February 2002	25.2 °C	988 mm	34
2001	30.8 °C1 October 2001	18.9 °C27 February 2001	25.2 °C	990 mm	29
2000	30.5 °C11 August 2000	17.4 °C21 January 2000	24.8 °C	946 mm	16
1999	30.7 °C22 September 1999	18.5 °C1 February 1999	24.8 °C	1,317 mm	11
1998	31.1 °C12 May 1998	20.0 °C25 February 1998	25.4 °C	1,524 mm	29
1997	31.5 °C10 September 1997	19.6 °C22 March 1997	25.2 °C	890 mm	40
1996	30.8 °C31 August 1996	19.2 °C17 December 1996	24.6 °C	1,506 mm	11
1995	31.5 °C12 August 1995	18.5 °C25 March 1995	25.4 °C	890 mm	70
1994	31.2 °C4 October 1994	19.3 °C30 December 1994	25.2 °C	865 mm	38
1993	31.0 °C3 June 1993	18.9 °C4 March 1993	25.1 °C	1,262 mm	29
1992	30.4 °C28 April 1992	19.8 °C31 January 1992	25.0 °C	1,229 mm	9
1991	30.9 °C15 August 1991	18.6 °C24 December 1991	25.0 °C	945 mm	22
1990	31.4 °C23 May 1990	19.1 °C6 February 1990	25.0 °C	1,086 mm	43
1989	30.4 °C6 September 1989	19.3 °C16 February 1989	24.7 °C	1,047 mm	6
1988	31.7 °C5 June 1988	19.8 °C18 January 1988	25.0 °C	1,197 mm	24
1987	31.6 °C26 September 1987	19.4 °C9 January 1987	25.3 °C	1,550 mm	35
1986	30.5 °C20 October 1986	18.3 °C26 February 1986	24.7 °C	1,250 mm	3
1985	30.7 °C9 July 1985	19.1 °C11 March 1985	24.6 °C	1,149 mm	13
1984	30.4 °C25 September 1984	19.1 °C19 December 1984	24.7 °C	1,132 mm	12
1983	31.1 °C23 June 1983	19.7 °C13 January 1983	25.4 °C	1,244 mm	27
1982	30.6 °C7 September 1982	19.2 °C18 December 1982	24.8 °C	1,132 mm	15
1981	31.4 °C1 September 1981	19.6 °C12 January 1981	25.3 °C	1,534 mm	30
1980	31.7 °C21 August 1980	18.8 °C16 January 1980	25.5 °C	1,087 mm	56
1979	30.3 °C15 June 1979	18.3 °C7 March 1979	24.8 °C	1,804 mm	11
1978	30.8 °C28 September 1978	20.1 °C13 February 1978	25.2 °C	1,285 mm	21
1977	30.3 °C7 September 1977	20.3 °C24 January 1977	25.0 °C	1,211 mm	4
1976	30.6 °C24 August 1976	18.7 °C29 January 1976	24.8 °C	1,063 mm	6
1975	31.1 °C7 June 1975	19.8 °C15 January 1975	25.0 °C	1,112 mm	6
1974	31.0 °C4 September 1974	20.5 °C13 March 1974	25.1 °C	1,331 mm	20
1973	30.7 °C12 August 1973	20.5 °C11 February 1973	25.5 °C	1,206 mm	21
1972	31.1 °C8 October 1972	20.2 °C14 March 1972	25.3 °C	1,261 mm	24
1971	30.9 °C27 September 1971	20.2 °C15 February 1971	25.1 °C	1,120 mm	23
1970	30.8 °C15 October 1970	18.2 °C6 March 1970	25.1 °C	1,464 mm	5
1969	31.0 °C2 September 1969	18.0 °C25 February 1969	25.1 °C	1,290 mm	19
1968	30.6 °C1 October 1968	17.9 °C5 February 1968	24.8 °C	888 mm	8
1967	30.5 °C2 September 1967	18.7 °C25 December 1967	24.8 °C	891 mm	11
1966	30.1 °C1 July 1966	19.8 °C24 January 1966	24.8 °C	1,066 mm	4
1965	30.4 °C2 September 1965	17.8 °C11 January 1965	24.6 °C	1,109 mm	5
1964	31.4 °C10 June 1964	18.8 °C30 December 1964	24.9 °C	1,059 mm	9
1963	30.6 °C6 August 1963	19.4 °C2 January 1963	24.7 °C	1,375 mm	11
1962	30.2 °C31 August 1962	18.0 °C16 February 1962	24.5 °C	1,177 mm	5
1961	30.3 °C25 May 1961	19.4 °C2 February 1961	24.5 °C	1,320 mm	2
1960	30.0 °C9 June 1960	18.7 °C21 January 1960	24.7 °C	1,288 mm	3
1959	30.6 °C7 September 1959	19.6 °C6 January 1959	24.8 °C	1,128 mm	11
1958	30.7 °C27 May 1958	18.8 °C16 January 1958	25.1 °C	1,498 mm	15
1957	30.7 °C2 September 1957	17.9 °C3 March 1957	24.7 °C	1,069 mm	13
1956	30.4 °C11 September 1956	17.5 °C8 January 1956	24.4 °C	1,179 mm	4
1955	30.5 °C28 August 1955	18.1 °C5 January 1955	24.3 °C	1,256 mm	4
1954	30.2 °C21 July 1954	19.0 °C29 January 1954	24.2 °C	1,329 mm	4
1953	30.9 °C4 September 1953	18.3 °C3 January 1953	24.5 °C	1,190 mm	7
1952	30.8 °C24 June 1952	17.9 °C22 December 1952	24.5 °C	1,150 mm	17
1951	30.6 °C14 September 1951	17.4 °C12 March 1951	24.3 °C	1,459 mm	6
1950	30.5 °C31 July 1950	18.5 °C28 January 1950	23.9 °C	1,278 mm	3
1949	30.8 °C19 August 1949	18.0 °C26 February 1949	24.3 °C	1,095 mm	12
1948	29.9 °C29 April 1948	18.4 °C20 February 1948	24.3 °C	1,669 mm	0
1947	30.5 °C11 June 1947	19.3 °C18 February 1947	24.6 °C	1,242 mm	6
1946	30.5 °C25 August 1946	19.0 °C7 March 1946	24.3 °C	1,339 mm	9
1945	29.8 °C11 September 1945	18.3 °C15 January 1945	24.0 °C	1,475 mm	0
1944	30.7 °C11 July 1944	18.9 °C28 February 1944	24.4 °C	1,440 mm	13
1943	30.0 °C22 August 1943	18.8 °C25 January 1943	24.0 °C	1,380 mm	3
1942	30.0 °C19 September 1942	18.5 °C28 January 1942	24.2 °C	1,854 mm	2
1941	30.0 °C28 July 1941	18.4 °C12 January 1941	24.2 °C	1,784 mm	1
1940	30.7 °C22 April 1940	18.8 °C6 March 1940	24.2 °C	1,703 mm	10

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

28.5 °C

+0.6 °C

Hot days (≥ 30 °C)

50 d/yr

+24

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1236 mm

-22 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.2 °C	+1.1 °C	52 mm	+1 mm
Feb	27.2 °C	+0.9 °C	51 mm	+5 mm
Mar	27.6 °C	+0.7 °C	74 mm	+20 mm
Apr	27.4 °C	-0.2 °C	159 mm	+65 mm
May	28.3 °C	+0.1 °C	180 mm	+30 mm
Jun	29.0 °C	+0.1 °C	41 mm	-67 mm
Jul	29.4 °C	+0.4 °C	71 mm	-41 mm
Aug	29.9 °C	+0.7 °C	102 mm	-32 mm
Sep	29.8 °C	+0.7 °C	226 mm	+61 mm
Oct	29.7 °C	+0.9 °C	151 mm	-12 mm
Nov	28.5 °C	+0.8 °C	94 mm	-26 mm
Dec	27.5 °C	+0.9 °C	36 mm	-25 mm

The year's extremes

Hottest day

31.6 °C

28 Sep 2025

Coldest day

19.9 °C

28 Dec 2025

Wettest day

50.4 mm

24 Sep 2025

Windiest day

25.9 km/h

3 Apr 2025

Strongest gust

53.3 km/h

3 Apr 2025

Hottest feels-like

38.2 °C

18 Oct 2025

Coldest feels-like

22.0 °C

29 Dec 2025

Sunniest day

13.0 h

19 Jun 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 Caguas?

Caguas has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 1,258 mm of precipitation per year.

What is the hottest day ever recorded in Caguas?

The hottest day measured in Caguas between 1940 and 2025 was 18 August 2024, reaching 32.6 °C.

What is the coldest day in Caguas?

The coldest day measured in Caguas between 1940 and 2025 was 12 March 1951, at 17.4 °C.

Does it snow in Caguas?

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

Has the climate of Caguas warmed?

Yes: Caguas warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Caguas?

The wettest day measured in Caguas between 1940 and 2025 was 18 September 2022, with 168 mm of rain in 24 hours.

What was the windiest day in Caguas?

The windiest day measured in Caguas between 1940 and 2025 was 20 September 2017, with winds reaching 65.4 km/h.

What is the warmest month in Caguas?

The warmest month in Caguas is August (26.4 °C on average); the coldest is January (23.3 °C).

How much does it rain in Caguas?

Caguas receives on average 1,258 mm of precipitation per year, spread over about 255 rainy days.

Is it sunny in Caguas?

Caguas gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.

Are there tropical nights in Caguas?

Yes: Caguas has on average 353 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Caguas?

In Caguas, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 18 June 2024, and the lowest was 17.0 °C on 16 January 2000.

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