Esparza climate — normals and trends

Q: What is the climate of Esparza?

Esparza has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.1 °C and it receives 3,160 mm of precipitation per year.

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

The hottest day measured in Esparza between 1940 and 2025 was 18 March 1941, reaching 34.7 °C.

Q: What is the coldest day in Esparza?

The coldest day measured in Esparza between 1940 and 2025 was 27 February 1944, at 18.3 °C.

Q: Does it snow in Esparza?

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

Q: Has the climate of Esparza warmed?

Yes: Esparza warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Esparza?

The wettest day measured in Esparza between 1940 and 2025 was 25 October 2017, with 259 mm of rain in 24 hours.

Q: What was the windiest day in Esparza?

The windiest day measured in Esparza between 1940 and 2025 was 24 February 1989, with winds reaching 34.2 km/h.

Q: What is the warmest month in Esparza?

The warmest month in Esparza is March (26.1 °C on average); the coldest is October (24.4 °C).

Q: How much does it rain in Esparza?

Esparza receives on average 3,160 mm of precipitation per year, spread over about 286 rainy days.

Q: Is it sunny in Esparza?

Esparza gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.

Esparza (Costa Rica) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.1 °C and it receives 3,160 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 March (26.1 °C on average) and the coldest is October (24.4 °C). Rainfall peaks in October.

Esparza averages 0 frost days, 52 hot days (≥ 30 °C) and 286 rainy days per year.

Esparza has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.

The hottest day of the period reached 34.7 °C (on 18 March 1941) and the coldest 18.3 °C (on 27 February 1944).

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

EsparzaPuntarenas Province

coords: 9.99°, -84.67°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthMarchColdest monthOctoberWettest monthOctoberDriest monthFebruary

Mean daily temperature

25.1°C

Average daily high

28.2°C

Average daily low

22.9°C

Annual rainfall

3,160mm

Sunshine / day

9.5h

Mean relative humidity

82%

Average peak wind

10.5km/h

Seasonal range

1.7°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

52 d/yr

Rainy days (≥ 1 mm)

286 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.2 °C

Average feels-like low

26.2 °C

Average peak gust

28.4 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

17.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.3 °C

since 1940

+0.2 °C per decade · r² = 0.55 · 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

34.7 °C

18 March 1941

Coldest day

18.3 °C

27 February 1944

Wettest day

259 mm

25 October 2017

Windiest day

34.2 km/h

24 February 1989

Strongest gust

73.1 km/h

5 February 2009

Hottest feels-like

40.3 °C

7 September 2009

Coldest feels-like

17.3 °C

27 February 1944

Sunniest day

12.5 h

7 June 1941

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.5 °C22 March 2025	21.3 °C19 December 2025	25.7 °C	3,213 mm	46
2024	33.3 °C16 February 2024	21.9 °C31 March 2024	26.0 °C	3,697 mm	82
2023	32.8 °C20 February 2023	21.2 °C22 January 2023	26.1 °C	2,712 mm	85
2022	31.8 °C21 February 2022	20.1 °C3 February 2022	25.1 °C	3,490 mm	23
2021	32.3 °C7 March 2021	21.2 °C21 December 2021	25.3 °C	3,540 mm	47
2020	33.9 °C9 March 2020	21.8 °C15 December 2020	25.8 °C	3,315 mm	81
2019	33.6 °C12 March 2019	21.5 °C13 January 2019	26.0 °C	2,730 mm	98
2018	32.4 °C28 March 2018	21.4 °C5 February 2018	25.6 °C	2,818 mm	61
2017	33.3 °C5 March 2017	20.5 °C23 January 2017	25.7 °C	3,512 mm	77
2016	33.9 °C9 April 2016	21.6 °C3 December 2016	26.0 °C	3,206 mm	103
2015	34.0 °C6 March 2015	21.4 °C10 February 2015	26.3 °C	2,499 mm	110
2014	33.4 °C9 April 2014	21.4 °C20 February 2014	25.8 °C	3,089 mm	76
2013	31.9 °C9 March 2013	21.4 °C15 February 2013	25.5 °C	3,198 mm	44
2012	33.2 °C12 March 2012	20.7 °C18 February 2012	25.6 °C	2,689 mm	48
2011	31.3 °C16 February 2011	20.2 °C24 January 2011	25.2 °C	3,395 mm	25
2010	33.6 °C3 February 2010	20.6 °C19 December 2010	25.5 °C	4,274 mm	80
2009	33.0 °C7 March 2009	20.8 °C2 February 2009	25.8 °C	2,770 mm	81
2008	31.7 °C25 March 2008	19.8 °C3 February 2008	25.0 °C	3,576 mm	16
2007	32.5 °C22 February 2007	21.2 °C9 February 2007	25.4 °C	3,428 mm	68
2006	32.7 °C5 March 2006	21.0 °C4 January 2006	25.5 °C	2,816 mm	47
2005	31.9 °C20 February 2005	20.7 °C15 December 2005	25.4 °C	2,849 mm	45
2004	34.5 °C25 March 2004	20.2 °C21 January 2004	25.7 °C	3,015 mm	77
2003	33.9 °C11 March 2003	21.4 °C29 March 2003	25.6 °C	3,056 mm	95
2002	34.4 °C5 April 2002	20.4 °C15 January 2002	25.8 °C	2,859 mm	103
2001	32.8 °C10 February 2001	20.2 °C3 December 2001	25.3 °C	2,872 mm	86
2000	31.8 °C1 March 2000	19.8 °C11 January 2000	25.0 °C	3,041 mm	43
1999	31.9 °C26 March 1999	19.9 °C16 January 1999	24.5 °C	2,882 mm	42
1998	34.3 °C9 March 1998	21.1 °C11 January 1998	25.8 °C	2,808 mm	134
1997	33.5 °C17 March 1997	20.3 °C24 January 1997	25.6 °C	2,066 mm	89
1996	32.0 °C14 February 1996	19.3 °C27 January 1996	24.8 °C	3,703 mm	36
1995	33.2 °C4 March 1995	20.8 °C7 January 1995	25.1 °C	4,001 mm	63
1994	32.5 °C11 March 1994	20.3 °C30 January 1994	25.3 °C	2,475 mm	64
1993	32.0 °C10 March 1993	19.9 °C27 December 1993	25.1 °C	2,979 mm	45
1992	34.3 °C29 February 1992	21.3 °C11 October 1992	25.6 °C	2,771 mm	100
1991	32.8 °C16 February 1991	20.4 °C21 January 1991	25.4 °C	2,789 mm	60
1990	34.1 °C13 March 1990	20.9 °C22 December 1990	25.5 °C	2,991 mm	80
1989	31.9 °C16 February 1989	20.2 °C29 September 1989	25.0 °C	2,939 mm	41
1988	33.1 °C27 March 1988	20.4 °C20 January 1988	25.1 °C	3,273 mm	60
1987	34.5 °C27 February 1987	20.3 °C8 January 1987	25.9 °C	2,974 mm	112
1986	32.9 °C29 March 1986	19.8 °C8 January 1986	25.0 °C	2,686 mm	55
1985	34.1 °C9 March 1985	20.1 °C27 November 1985	24.8 °C	2,928 mm	63
1984	32.5 °C15 March 1984	20.3 °C12 July 1984	24.7 °C	2,731 mm	27
1983	33.3 °C3 February 1983	20.2 °C3 December 1983	25.8 °C	2,809 mm	107
1982	32.2 °C15 December 1982	20.6 °C21 February 1982	25.3 °C	2,904 mm	56
1981	32.1 °C27 February 1981	19.6 °C23 January 1981	24.9 °C	3,111 mm	33
1980	32.6 °C27 March 1980	20.7 °C15 January 1980	25.1 °C	2,939 mm	45
1979	33.7 °C17 March 1979	20.0 °C24 January 1979	25.0 °C	3,602 mm	53
1978	32.3 °C26 February 1978	20.5 °C24 December 1978	24.9 °C	3,718 mm	37
1977	33.3 °C9 February 1977	19.9 °C10 January 1977	25.2 °C	3,051 mm	74
1976	33.0 °C20 March 1976	19.1 °C28 December 1976	24.9 °C	2,864 mm	54
1975	31.8 °C21 April 1975	19.8 °C16 February 1975	24.3 °C	4,357 mm	8
1974	32.1 °C21 April 1974	18.8 °C20 January 1974	24.3 °C	3,358 mm	6
1973	33.3 °C5 February 1973	20.1 °C28 December 1973	25.0 °C	3,684 mm	69
1972	31.8 °C6 April 1972	20.6 °C7 January 1972	25.2 °C	2,755 mm	25
1971	30.2 °C10 March 1971	20.0 °C15 December 1971	24.3 °C	3,903 mm	3
1970	32.9 °C13 February 1970	20.2 °C23 November 1970	24.8 °C	3,526 mm	35
1969	32.1 °C31 March 1969	20.9 °C2 February 1969	25.2 °C	3,646 mm	53
1968	32.8 °C27 March 1968	20.0 °C5 December 1968	24.7 °C	3,424 mm	35
1967	32.4 °C27 February 1967	20.3 °C27 March 1967	24.9 °C	2,830 mm	41
1966	34.1 °C8 March 1966	20.6 °C29 December 1966	25.1 °C	3,027 mm	54
1965	33.4 °C4 April 1965	19.8 °C1 February 1965	25.0 °C	2,879 mm	40
1964	32.3 °C28 January 1964	19.7 °C25 December 1964	24.7 °C	3,065 mm	57
1963	32.0 °C24 March 1963	20.3 °C14 January 1963	24.8 °C	2,946 mm	24
1962	31.8 °C1 February 1962	20.3 °C10 January 1962	24.6 °C	2,890 mm	20
1961	33.9 °C28 February 1961	20.6 °C2 January 1961	24.9 °C	2,599 mm	42
1960	31.2 °C7 March 1960	20.4 °C6 January 1960	24.7 °C	3,081 mm	14
1959	32.2 °C13 February 1959	20.2 °C25 January 1959	24.9 °C	2,329 mm	40
1958	32.1 °C16 February 1958	21.1 °C7 November 1958	25.2 °C	3,597 mm	38
1957	32.5 °C16 February 1957	20.6 °C23 January 1957	25.2 °C	2,619 mm	29
1956	32.0 °C3 March 1956	20.0 °C12 January 1956	24.4 °C	3,526 mm	19
1955	31.6 °C27 February 1955	19.7 °C15 December 1955	24.7 °C	3,953 mm	52
1954	33.7 °C5 March 1954	20.4 °C8 December 1954	24.6 °C	3,006 mm	34
1953	33.0 °C11 March 1953	20.1 °C19 January 1953	25.2 °C	3,419 mm	55
1952	32.9 °C27 February 1952	20.7 °C8 March 1952	25.0 °C	2,900 mm	38
1951	32.7 °C7 March 1951	20.9 °C9 January 1951	25.1 °C	3,138 mm	24
1950	31.8 °C9 April 1950	20.2 °C28 February 1950	24.5 °C	3,279 mm	10
1949	32.1 °C14 February 1949	20.0 °C17 December 1949	25.0 °C	3,878 mm	44
1948	32.4 °C16 February 1948	19.8 °C24 February 1948	24.4 °C	4,470 mm	34
1947	31.8 °C8 March 1947	19.5 °C30 December 1947	24.4 °C	3,613 mm	23
1946	31.9 °C15 February 1946	19.2 °C5 January 1946	24.4 °C	3,036 mm	22
1945	31.8 °C3 March 1945	18.7 °C5 February 1945	24.3 °C	3,548 mm	18
1944	31.7 °C5 March 1944	18.3 °C27 February 1944	24.4 °C	3,729 mm	15
1943	30.5 °C9 March 1943	19.7 °C13 January 1943	24.2 °C	3,288 mm	8
1942	33.0 °C9 March 1942	20.2 °C12 February 1942	24.3 °C	3,851 mm	53
1941	34.7 °C18 March 1941	20.7 °C5 January 1941	25.3 °C	2,358 mm	98
1940	31.7 °C23 February 1940	19.8 °C12 January 1940	24.7 °C	2,628 mm	12

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

+0.5 °C

Hot days (≥ 30 °C)

46 d/yr

-6

Frost days (< 0 °C)

0 d/yr

Annual rainfall

3213 mm

+53 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.7 °C	-0.3 °C	81 mm	+47 mm
Feb	29.4 °C	-0.7 °C	50 mm	+26 mm
Mar	30.1 °C	-0.1 °C	34 mm	-13 mm
Apr	29.7 °C	+0.6 °C	125 mm	-11 mm
May	28.6 °C	+0.6 °C	423 mm	+33 mm
Jun	28.1 °C	+0.5 °C	401 mm	-17 mm
Jul	28.7 °C	+1.1 °C	296 mm	-99 mm
Aug	28.5 °C	+1.0 °C	328 mm	-80 mm
Sep	28.1 °C	+0.8 °C	624 mm	+205 mm
Oct	27.4 °C	+0.4 °C	437 mm	-66 mm
Nov	28.3 °C	+1.1 °C	285 mm	-7 mm
Dec	28.3 °C	+0.5 °C	130 mm	+33 mm

The year's extremes

Hottest day

33.5 °C

22 Mar 2025

Coldest day

21.3 °C

19 Dec 2025

Wettest day

242.9 mm

27 Sep 2025

Windiest day

20.8 km/h

13 Apr 2025

Strongest gust

41.8 km/h

3 Apr 2025

Hottest feels-like

38.5 °C

22 Mar 2025

Coldest feels-like

22.3 °C

22 Dec 2025

Sunniest day

12.2 h

16 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 Esparza?

Esparza has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.1 °C and it receives 3,160 mm of precipitation per year.

What is the hottest day ever recorded in Esparza?

The hottest day measured in Esparza between 1940 and 2025 was 18 March 1941, reaching 34.7 °C.

What is the coldest day in Esparza?

The coldest day measured in Esparza between 1940 and 2025 was 27 February 1944, at 18.3 °C.

Does it snow in Esparza?

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

Has the climate of Esparza warmed?

Yes: Esparza warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Esparza?

The wettest day measured in Esparza between 1940 and 2025 was 25 October 2017, with 259 mm of rain in 24 hours.

What was the windiest day in Esparza?

The windiest day measured in Esparza between 1940 and 2025 was 24 February 1989, with winds reaching 34.2 km/h.

What is the warmest month in Esparza?

The warmest month in Esparza is March (26.1 °C on average); the coldest is October (24.4 °C).

How much does it rain in Esparza?

Esparza receives on average 3,160 mm of precipitation per year, spread over about 286 rainy days.

Is it sunny in Esparza?

Esparza gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.

Are there tropical nights in Esparza?

Yes: Esparza has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Esparza?

In Esparza, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 7 September 2009, and the lowest was 17.3 °C on 27 February 1944.

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