Juan Santamaria Intl Weather Records (CSM00078762)
Record envelope, standing records and threshold days for Juan Santamaria Intl (CSM00078762), Costa Rica, with 53 years of record.
Key Facts for Juan Santamaria Intl
Juan Santamaria Intl (CSM00078762) is a weather station in Costa Rica at 9.99 latitude and -84.21 longitude, 921 m (3,021 ft) above sea level.
The station reports from 1973 to 2025, 53 years of record.
1,464 records set at Juan Santamaria Intl still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Juan Santamaria Intl set a daily record high maximum temperature of 31.5 C (88.7 F) on 25 July 2025.
About the Station
Location: Costa Rica, 9.99 latitude, -84.21 longitude.
Elevation: 921 m (3,021 ft).
Period of record: 1973 to 2025, 53 years.
Eligible elements: tmax, tmin.
Daily Record Envelope and 2026
10 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Juan Santamaria Intl. The lines show the 2026 daily maximum and minimum. 10 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Juan Santamaria Intl, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
32.0 C (89.6 F)
10.0 C (50.0 F)
30.3 C (86.5 F)
15.7 C (60.3 F)
Feb
35.2 C (95.4 F)
11.0 C (51.8 F)
31.1 C (88.0 F)
16.9 C (62.4 F)
Mar
36.0 C (96.8 F)
11.0 C (51.8 F)
32.6 C (90.7 F)
15.7 C (60.3 F)
Apr
36.6 C (97.9 F)
12.0 C (53.6 F)
31.9 C (89.4 F)
17.8 C (64.0 F)
May
38.0 C (100.4 F)
11.6 C (52.9 F)
33.2 C (91.8 F)
17.9 C (64.2 F)
Jun
33.0 C (91.4 F)
13.5 C (56.3 F)
31.0 C (87.8 F)
17.7 C (63.9 F)
Jul
34.0 C (93.2 F)
13.9 C (57.0 F)
31.5 C (88.7 F)
17.7 C (63.9 F)
Aug
36.0 C (96.8 F)
11.7 C (53.1 F)
31.1 C (88.0 F)
17.3 C (63.1 F)
Sep
36.0 C (96.8 F)
14.0 C (57.2 F)
n/a
n/a
Oct
36.0 C (96.8 F)
12.0 C (53.6 F)
n/a
n/a
Nov
31.7 C (89.1 F)
13.0 C (55.4 F)
n/a
n/a
Dec
33.0 C (91.4 F)
10.0 C (50.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Juan Santamaria Intl still stand. 1977 holds the most, with 87.
Standing records at Juan Santamaria Intl by the year they were set
Year set
Standing records
1973
1
1974
3
1976
16
1977
87
1978
56
1979
63
1980
42
1981
31
1982
22
1983
14
1984
47
1985
44
1986
18
1987
30
1988
39
1989
34
1990
26
1991
15
1992
10
1993
12
1994
10
1995
22
1996
25
1997
31
1998
18
1999
11
2000
24
2001
32
2002
47
2003
27
2004
23
2005
30
2006
20
2007
11
2008
20
2009
20
2010
25
2011
17
2012
23
2013
18
2014
17
2015
60
2016
35
2017
27
2018
26
2019
42
2020
39
2021
12
2022
11
2023
48
2024
64
2025
19
Wettest Day of Each Month
May: 490.0 mm (19.3 in)
The wettest day on record for each calendar month at Juan Santamaria Intl. The most was 490.0 mm (19.3 in) on 30 May 1979.
Record daily precipitation for each month at Juan Santamaria Intl
Month
Record daily precipitation (mm)
Date
Jan
486.9 mm (19.2 in)
27 January 1979
Feb
80.0 mm (3.1 in)
25 February 1978
Mar
335.0 mm (13.2 in)
27 March 1978
Apr
335.0 mm (13.2 in)
18 April 1978
May
490.0 mm (19.3 in)
30 May 1979
Jun
487.9 mm (19.2 in)
12 June 1976
Jul
336.0 mm (13.2 in)
4 July 1982
Aug
309.1 mm (12.2 in)
8 August 1979
Sep
335.0 mm (13.2 in)
22 September 1982
Oct
364.0 mm (14.3 in)
6 October 1974
Nov
336.0 mm (13.2 in)
9 November 1979
Dec
257.0 mm (10.1 in)
14 December 1978
Period of Record Coverage
1973 to 2025
Complete yearUnder 90 percent of days
52 years of record at Juan Santamaria Intl, 1973 to 2025. 49 years have data for under 90 percent of days and are left out of rankings: 1973, 1974, 1976, 1977, 1978, 1979, 1980, 1981 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 14 complete years at Juan Santamaria Intl, 1977 to 2024. Blue stripes are years cooler than the station's own mean of 23.8 C (74.8 F); red stripes are warmer. The coolest year was 1978, at 22.8 C (73.1 F), and the warmest was 2015, at 24.3 C (75.8 F). The strongest colour marks a difference of 1.0 C (1.8 F).
Annual mean temperature at Juan Santamaria Intl as warming stripes, 1977 to 2024
Year
Annual mean temperature
Difference from the station mean
1977
23.2 C
-0.58 C
1978
22.8 C
-0.94 C
2012
23.5 C
-0.27 C
2013
23.7 C
-0.03 C
2015
24.3 C
+0.58 C
2016
24.0 C
+0.24 C
2017
23.8 C
0.00 C
2018
23.7 C
-0.07 C
2019
24.1 C
+0.37 C
2020
24.0 C
+0.22 C
2021
23.7 C
-0.07 C
2022
23.3 C
-0.44 C
2023
24.2 C
+0.46 C
2024
24.3 C
+0.54 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1973 to 2025
Yearly extremes at Juan Santamaria Intl: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.0 C (100.4 F)
1977
33.1 C (91.6 F)
52
Coldest night (TNn)
10.0 C (50.0 F)
1976
13.9 C (57.0 F)
51
Wettest day (Rx1day)
490.0 mm (19.3 in)
1979
99.1 mm (3.9 in)
53
Wettest five days (Rx5day)
752.0 mm (29.6 in)
1979
155.5 mm (6.1 in)
49
Longest dry spell (CDD)
9 days
1995
4 days
52
Hottest day (TXx)
The hottest day of the year at Juan Santamaria Intl, 1973 to 2025. The record is 38.0 C (100.4 F) in 1977, marked on the chart; the median year is 33.1 C (91.6 F).
Hottest day (TXx) at Juan Santamaria Intl by year
Year
Hottest day (TXx)
1973
31.0 C (87.8 F)
1974
36.0 C (96.8 F)
1975
n/a
1976
33.0 C (91.4 F)
1977
38.0 C (100.4 F)
1978
34.0 C (93.2 F)
1979
36.0 C (96.8 F)
1980
35.0 C (95.0 F)
1981
32.0 C (89.6 F)
1982
35.2 C (95.4 F)
1983
33.5 C (92.3 F)
1984
34.0 C (93.2 F)
1985
31.4 C (88.5 F)
1986
31.4 C (88.5 F)
1987
33.5 C (92.3 F)
1988
33.0 C (91.4 F)
1989
31.8 C (89.2 F)
1990
31.7 C (89.1 F)
1991
32.6 C (90.7 F)
1992
34.0 C (93.2 F)
1993
33.0 C (91.4 F)
1994
32.4 C (90.3 F)
1995
32.8 C (91.0 F)
1996
33.6 C (92.5 F)
1997
33.4 C (92.1 F)
1998
33.6 C (92.5 F)
1999
31.5 C (88.7 F)
2000
32.0 C (89.6 F)
2001
36.6 C (97.9 F)
2002
33.0 C (91.4 F)
2003
32.8 C (91.0 F)
2004
33.8 C (92.8 F)
2005
33.4 C (92.1 F)
2006
33.1 C (91.6 F)
2007
32.7 C (90.9 F)
2008
32.6 C (90.7 F)
2009
32.5 C (90.5 F)
2010
33.3 C (91.9 F)
2011
32.5 C (90.5 F)
2012
32.6 C (90.7 F)
2013
32.7 C (90.9 F)
2014
36.1 C (97.0 F)
2015
36.0 C (96.8 F)
2016
33.3 C (91.9 F)
2017
33.4 C (92.1 F)
2018
32.9 C (91.2 F)
2019
33.1 C (91.6 F)
2020
34.0 C (93.2 F)
2021
31.8 C (89.2 F)
2022
31.9 C (89.4 F)
2023
33.3 C (91.9 F)
2024
34.4 C (93.9 F)
2025
33.2 C (91.8 F)
Coldest night (TNn)
The coldest night of the year at Juan Santamaria Intl, 1973 to 2025. The record is 10.0 C (50.0 F) in 1976, marked on the chart; the median year is 13.9 C (57.0 F).
Coldest night (TNn) at Juan Santamaria Intl by year
Year
Coldest night (TNn)
1973
n/a
1974
11.0 C (51.8 F)
1975
n/a
1976
10.0 C (50.0 F)
1977
13.0 C (55.4 F)
1978
12.0 C (53.6 F)
1979
10.0 C (50.0 F)
1980
12.0 C (53.6 F)
1981
13.0 C (55.4 F)
1982
13.8 C (56.8 F)
1983
14.8 C (58.6 F)
1984
11.6 C (52.9 F)
1985
13.0 C (55.4 F)
1986
14.0 C (57.2 F)
1987
13.2 C (55.8 F)
1988
10.9 C (51.6 F)
1989
11.0 C (51.8 F)
1990
12.0 C (53.6 F)
1991
14.7 C (58.5 F)
1992
15.0 C (59.0 F)
1993
14.3 C (57.7 F)
1994
15.0 C (59.0 F)
1995
12.0 C (53.6 F)
1996
14.8 C (58.6 F)
1997
15.0 C (59.0 F)
1998
15.7 C (60.3 F)
1999
13.5 C (56.3 F)
2000
14.0 C (57.2 F)
2001
14.3 C (57.7 F)
2002
13.9 C (57.0 F)
2003
15.2 C (59.4 F)
2004
13.2 C (55.8 F)
2005
14.5 C (58.1 F)
2006
13.0 C (55.4 F)
2007
13.9 C (57.0 F)
2008
14.6 C (58.3 F)
2009
15.0 C (59.0 F)
2010
15.3 C (59.5 F)
2011
14.7 C (58.5 F)
2012
11.7 C (53.1 F)
2013
14.2 C (57.6 F)
2014
15.6 C (60.1 F)
2015
12.1 C (53.8 F)
2016
14.3 C (57.7 F)
2017
13.3 C (55.9 F)
2018
11.7 C (53.1 F)
2019
15.4 C (59.7 F)
2020
15.9 C (60.6 F)
2021
15.5 C (59.9 F)
2022
13.9 C (57.0 F)
2023
12.9 C (55.2 F)
2024
15.1 C (59.2 F)
2025
15.7 C (60.3 F)
Wettest day (Rx1day)
The wettest day of the year at Juan Santamaria Intl, 1973 to 2025. The record is 490.0 mm (19.3 in) in 1979, marked on the chart; the median year is 99.1 mm (3.9 in).
Wettest day (Rx1day) at Juan Santamaria Intl by year
Year
Wettest day (Rx1day)
1973
34.0 mm (1.3 in)
1974
364.0 mm (14.3 in)
1975
26.9 mm (1.1 in)
1976
487.9 mm (19.2 in)
1977
257.0 mm (10.1 in)
1978
335.0 mm (13.2 in)
1979
490.0 mm (19.3 in)
1980
335.0 mm (13.2 in)
1981
335.0 mm (13.2 in)
1982
336.0 mm (13.2 in)
1983
335.0 mm (13.2 in)
1984
335.0 mm (13.2 in)
1985
56.4 mm (2.2 in)
1986
80.0 mm (3.1 in)
1987
99.1 mm (3.9 in)
1988
152.1 mm (6.0 in)
1989
70.1 mm (2.8 in)
1990
63.5 mm (2.5 in)
1991
48.5 mm (1.9 in)
1992
58.7 mm (2.3 in)
1993
42.2 mm (1.7 in)
1994
171.5 mm (6.8 in)
1995
71.6 mm (2.8 in)
1996
100.6 mm (4.0 in)
1997
66.0 mm (2.6 in)
1998
126.5 mm (5.0 in)
1999
60.7 mm (2.4 in)
2000
152.1 mm (6.0 in)
2001
156.2 mm (6.1 in)
2002
46.5 mm (1.8 in)
2003
66.5 mm (2.6 in)
2004
77.2 mm (3.0 in)
2005
81.3 mm (3.2 in)
2006
66.8 mm (2.6 in)
2007
71.6 mm (2.8 in)
2008
110.7 mm (4.4 in)
2009
99.1 mm (3.9 in)
2010
111.0 mm (4.4 in)
2011
115.8 mm (4.6 in)
2012
57.2 mm (2.3 in)
2013
281.4 mm (11.1 in)
2014
71.9 mm (2.8 in)
2015
73.7 mm (2.9 in)
2016
53.1 mm (2.1 in)
2017
174.2 mm (6.9 in)
2018
59.7 mm (2.4 in)
2019
170.4 mm (6.7 in)
2020
88.9 mm (3.5 in)
2021
79.8 mm (3.1 in)
2022
198.9 mm (7.8 in)
2023
215.9 mm (8.5 in)
2024
114.0 mm (4.5 in)
2025
83.6 mm (3.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Juan Santamaria Intl, 1973 to 2025. The record is 752.0 mm (29.6 in) in 1979, marked on the chart; the median year is 155.5 mm (6.1 in).
Wettest five days (Rx5day) at Juan Santamaria Intl by year
Year
Wettest five days (Rx5day)
1973
7.1 mm (0.28 in)
1974
n/a
1975
n/a
1976
n/a
1977
n/a
1978
327.8 mm (12.9 in)
1979
752.0 mm (29.6 in)
1980
92.9 mm (3.7 in)
1981
292.1 mm (11.5 in)
1982
695.4 mm (27.4 in)
1983
396.2 mm (15.6 in)
1984
694.5 mm (27.3 in)
1985
114.3 mm (4.5 in)
1986
111.0 mm (4.4 in)
1987
172.2 mm (6.8 in)
1988
169.0 mm (6.7 in)
1989
159.5 mm (6.3 in)
1990
155.5 mm (6.1 in)
1991
131.8 mm (5.2 in)
1992
145.1 mm (5.7 in)
1993
19.3 mm (0.8 in)
1994
190.0 mm (7.5 in)
1995
195.5 mm (7.7 in)
1996
140.9 mm (5.5 in)
1997
112.8 mm (4.4 in)
1998
113.0 mm (4.4 in)
1999
102.6 mm (4.0 in)
2000
53.8 mm (2.1 in)
2001
256.5 mm (10.1 in)
2002
88.2 mm (3.5 in)
2003
84.4 mm (3.3 in)
2004
142.7 mm (5.6 in)
2005
170.7 mm (6.7 in)
2006
100.9 mm (4.0 in)
2007
140.0 mm (5.5 in)
2008
250.2 mm (9.9 in)
2009
107.5 mm (4.2 in)
2010
280.2 mm (11.0 in)
2011
218.2 mm (8.6 in)
2012
134.4 mm (5.3 in)
2013
362.2 mm (14.3 in)
2014
128.0 mm (5.0 in)
2015
111.6 mm (4.4 in)
2016
119.3 mm (4.7 in)
2017
265.9 mm (10.5 in)
2018
116.9 mm (4.6 in)
2019
206.8 mm (8.1 in)
2020
219.7 mm (8.6 in)
2021
160.1 mm (6.3 in)
2022
163.8 mm (6.4 in)
2023
245.3 mm (9.7 in)
2024
148.3 mm (5.8 in)
2025
196.9 mm (7.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Juan Santamaria Intl, 1973 to 2025. The record is 9 days in 1995, marked on the chart; the median year is 4 days.
Longest dry spell (CDD) at Juan Santamaria Intl by year
Year
Longest dry spell (CDD)
1973
3 days
1974
1 day
1975
n/a
1976
1 day
1977
1 day
1978
1 day
1979
3 days
1980
2 days
1981
4 days
1982
7 days
1983
3 days
1984
5 days
1985
3 days
1986
4 days
1987
8 days
1988
5 days
1989
5 days
1990
5 days
1991
4 days
1992
4 days
1993
5 days
1994
5 days
1995
9 days
1996
2 days
1997
5 days
1998
5 days
1999
4 days
2000
4 days
2001
3 days
2002
6 days
2003
2 days
2004
7 days
2005
8 days
2006
3 days
2007
5 days
2008
5 days
2009
3 days
2010
5 days
2011
5 days
2012
3 days
2013
5 days
2014
6 days
2015
4 days
2016
3 days
2017
4 days
2018
3 days
2019
4 days
2020
5 days
2021
3 days
2022
5 days
2023
5 days
2024
3 days
2025
4 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Download the Data
Data for Juan Santamaria Intl standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Juan Santamaria Intl threshold days by year: CSV or JSON. Field meanings are on the data page.
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.