Record envelope, standing records and threshold days for Sultan Iskandarmuda (IDM00096011), Indonesia, with 53 years of record.
Key Facts for Sultan Iskandarmuda
Sultan Iskandarmuda (IDM00096011) is a weather station in Indonesia at 5.52 latitude and 95.42 longitude, 20 m (65 ft) above sea level.
The station reports from 1973 to 2025, 53 years of record.
1,464 records set at Sultan Iskandarmuda still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Sultan Iskandarmuda tied a daily record high maximum temperature of 35.8 C (96.4 F) on 17 August 2025.
About the Station
Location: Indonesia, 5.52 latitude, 95.42 longitude.
Elevation: 20 m (65 ft).
Period of record: 1973 to 2025, 53 years.
Eligible elements: tmax, tmin.
Daily Record Envelope and 2026
15 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 Sultan Iskandarmuda. The lines show the 2026 daily maximum and minimum. 15 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Sultan Iskandarmuda, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
34.6 C (94.3 F)
18.0 C (64.4 F)
33.3 C (91.9 F)
22.5 C (72.5 F)
Feb
37.0 C (98.6 F)
16.4 C (61.5 F)
33.2 C (91.8 F)
22.4 C (72.3 F)
Mar
35.8 C (96.4 F)
16.4 C (61.5 F)
33.9 C (93.0 F)
23.4 C (74.1 F)
Apr
36.0 C (96.8 F)
18.5 C (65.3 F)
34.4 C (93.9 F)
22.6 C (72.7 F)
May
37.4 C (99.3 F)
17.7 C (63.9 F)
36.4 C (97.5 F)
23.8 C (74.8 F)
Jun
37.2 C (99.0 F)
17.7 C (63.9 F)
37.2 C (99.0 F)
23.2 C (73.8 F)
Jul
39.8 C (103.6 F)
16.5 C (61.7 F)
37.0 C (98.6 F)
22.6 C (72.7 F)
Aug
39.0 C (102.2 F)
17.2 C (63.0 F)
35.8 C (96.4 F)
22.4 C (72.3 F)
Sep
38.0 C (100.4 F)
17.8 C (64.0 F)
n/a
n/a
Oct
37.2 C (99.0 F)
17.5 C (63.5 F)
n/a
n/a
Nov
35.4 C (95.7 F)
18.4 C (65.1 F)
n/a
n/a
Dec
36.1 C (97.0 F)
16.8 C (62.2 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Sultan Iskandarmuda still stand. 2024 holds the most, with 103.
Standing records at Sultan Iskandarmuda by the year they were set
Year set
Standing records
1979
7
1980
4
1981
33
1984
8
1985
31
1986
35
1987
30
1988
23
1989
8
1990
8
1991
10
1992
36
1993
42
1994
32
1995
24
1996
51
1997
36
1998
36
1999
42
2000
41
2001
46
2002
46
2003
32
2004
15
2005
34
2006
28
2007
34
2008
40
2009
28
2010
22
2011
28
2012
29
2013
26
2014
45
2015
25
2016
59
2017
31
2018
26
2019
54
2020
48
2021
32
2022
27
2023
40
2024
103
2025
29
Wettest Day of Each Month
Jul: 111.0 mm (4.4 in)
The wettest day on record for each calendar month at Sultan Iskandarmuda. The most was 111.0 mm (4.4 in) on 31 July 2017.
Record daily precipitation for each month at Sultan Iskandarmuda
Month
Record daily precipitation (mm)
Date
Jan
48.0 mm (1.9 in)
3 January 2018
Feb
100.1 mm (3.9 in)
5 February 1998
Mar
97.0 mm (3.8 in)
10 March 1982
Apr
55.9 mm (2.2 in)
26 April 2019
May
110.0 mm (4.3 in)
10 May 1980
Jun
99.1 mm (3.9 in)
15 June 1985
Jul
111.0 mm (4.4 in)
31 July 2017
Aug
33.0 mm (1.3 in)
29 August 1979
Sep
103.1 mm (4.1 in)
30 September 1987
Oct
98.0 mm (3.9 in)
2 October 1994
Nov
89.9 mm (3.5 in)
27 November 1979
Dec
96.0 mm (3.8 in)
3 December 2021
Period of Record Coverage
1979 to 2025
Complete yearUnder 90 percent of days
45 years of record at Sultan Iskandarmuda, 1979 to 2025. 38 years have data for under 90 percent of days and are left out of rankings: 1979, 1980, 1981, 1984, 1985, 1986, 1987, 1988 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 11 complete years at Sultan Iskandarmuda, 1993 to 2023. Blue stripes are years cooler than the station's own mean of 27.5 C (81.5 F); red stripes are warmer. The coolest year was 1993, at 26.9 C (80.4 F), and the warmest was 2019, at 28.2 C (82.8 F). The strongest colour marks a difference of 0.8 C (1.4 F).
Annual mean temperature at Sultan Iskandarmuda as warming stripes, 1993 to 2023
Year
Annual mean temperature
Difference from the station mean
1993
26.9 C
-0.62 C
1994
27.1 C
-0.38 C
1996
26.9 C
-0.62 C
1997
27.0 C
-0.56 C
2003
27.4 C
-0.15 C
2008
27.6 C
+0.05 C
2010
27.7 C
+0.14 C
2011
27.8 C
+0.25 C
2016
28.2 C
+0.64 C
2019
28.2 C
+0.72 C
2023
28.0 C
+0.49 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 Sultan Iskandarmuda: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
39.8 C (103.6 F)
2005
36.2 C (97.2 F)
45
Coldest night (TNn)
16.4 C (61.5 F)
2001
19.0 C (66.2 F)
45
Wettest day (Rx1day)
111.0 mm (4.4 in)
2017
48.0 mm (1.9 in)
49
Wettest five days (Rx5day)
146.8 mm (5.8 in)
1980
60.7 mm (2.4 in)
19
Longest dry spell (CDD)
28 days
1995
7 days
32
Hottest day (TXx)
The hottest day of the year at Sultan Iskandarmuda, 1973 to 2025. The record is 39.8 C (103.6 F) in 2005, marked on the chart; the median year is 36.2 C (97.2 F).
Hottest day (TXx) at Sultan Iskandarmuda by year
Year
Hottest day (TXx)
1973
n/a
1974
n/a
1975
n/a
1976
n/a
1977
n/a
1978
n/a
1979
36.0 C (96.8 F)
1980
39.0 C (102.2 F)
1981
36.0 C (96.8 F)
1982
n/a
1983
n/a
1984
35.4 C (95.7 F)
1985
38.0 C (100.4 F)
1986
35.4 C (95.7 F)
1987
37.0 C (98.6 F)
1988
35.4 C (95.7 F)
1989
35.2 C (95.4 F)
1990
35.3 C (95.5 F)
1991
35.0 C (95.0 F)
1992
35.0 C (95.0 F)
1993
35.2 C (95.4 F)
1994
36.3 C (97.3 F)
1995
35.8 C (96.4 F)
1996
35.0 C (95.0 F)
1997
36.2 C (97.2 F)
1998
36.6 C (97.9 F)
1999
35.0 C (95.0 F)
2000
36.0 C (96.8 F)
2001
37.0 C (98.6 F)
2002
36.5 C (97.7 F)
2003
35.4 C (95.7 F)
2004
35.8 C (96.4 F)
2005
39.8 C (103.6 F)
2006
36.1 C (97.0 F)
2007
36.0 C (96.8 F)
2008
36.6 C (97.9 F)
2009
36.8 C (98.2 F)
2010
36.5 C (97.7 F)
2011
37.2 C (99.0 F)
2012
36.7 C (98.1 F)
2013
35.8 C (96.4 F)
2014
36.2 C (97.2 F)
2015
36.7 C (98.1 F)
2016
36.6 C (97.9 F)
2017
37.2 C (99.0 F)
2018
38.0 C (100.4 F)
2019
37.4 C (99.3 F)
2020
35.6 C (96.1 F)
2021
37.2 C (99.0 F)
2022
36.2 C (97.2 F)
2023
36.3 C (97.3 F)
2024
37.9 C (100.2 F)
2025
37.2 C (99.0 F)
Coldest night (TNn)
The coldest night of the year at Sultan Iskandarmuda, 1973 to 2025. The record is 16.4 C (61.5 F) in 2001, marked on the chart; the median year is 19.0 C (66.2 F).
Coldest night (TNn) at Sultan Iskandarmuda by year
Year
Coldest night (TNn)
1973
n/a
1974
n/a
1975
n/a
1976
n/a
1977
n/a
1978
n/a
1979
20.0 C (68.0 F)
1980
21.0 C (69.8 F)
1981
18.0 C (64.4 F)
1982
n/a
1983
n/a
1984
18.8 C (65.8 F)
1985
18.7 C (65.7 F)
1986
19.0 C (66.2 F)
1987
19.0 C (66.2 F)
1988
19.8 C (67.6 F)
1989
19.4 C (66.9 F)
1990
17.8 C (64.0 F)
1991
17.0 C (62.6 F)
1992
16.5 C (61.7 F)
1993
17.0 C (62.6 F)
1994
19.0 C (66.2 F)
1995
19.5 C (67.1 F)
1996
17.2 C (63.0 F)
1997
18.5 C (65.3 F)
1998
19.0 C (66.2 F)
1999
18.0 C (64.4 F)
2000
16.8 C (62.2 F)
2001
16.4 C (61.5 F)
2002
17.8 C (64.0 F)
2003
17.7 C (63.9 F)
2004
19.6 C (67.3 F)
2005
19.0 C (66.2 F)
2006
19.0 C (66.2 F)
2007
18.0 C (64.4 F)
2008
20.0 C (68.0 F)
2009
19.2 C (66.6 F)
2010
19.4 C (66.9 F)
2011
20.0 C (68.0 F)
2012
19.8 C (67.6 F)
2013
18.7 C (65.7 F)
2014
18.3 C (64.9 F)
2015
19.8 C (67.6 F)
2016
16.4 C (61.5 F)
2017
19.8 C (67.6 F)
2018
17.7 C (63.9 F)
2019
20.8 C (69.4 F)
2020
22.0 C (71.6 F)
2021
18.2 C (64.8 F)
2022
20.2 C (68.4 F)
2023
20.4 C (68.7 F)
2024
21.1 C (70.0 F)
2025
22.4 C (72.3 F)
Wettest day (Rx1day)
The wettest day of the year at Sultan Iskandarmuda, 1973 to 2025. The record is 111.0 mm (4.4 in) in 2017, marked on the chart; the median year is 48.0 mm (1.9 in).
Wettest day (Rx1day) at Sultan Iskandarmuda by year
Year
Wettest day (Rx1day)
1973
15.0 mm (0.6 in)
1974
15.0 mm (0.6 in)
1975
0.0 mm (0.00 in)
1976
8.9 mm (0.35 in)
1977
9.9 mm (0.39 in)
1978
13.0 mm (0.5 in)
1979
89.9 mm (3.5 in)
1980
110.0 mm (4.3 in)
1981
55.1 mm (2.2 in)
1982
97.0 mm (3.8 in)
1983
57.9 mm (2.3 in)
1984
16.0 mm (0.6 in)
1985
99.1 mm (3.9 in)
1986
41.9 mm (1.6 in)
1987
103.1 mm (4.1 in)
1988
17.0 mm (0.7 in)
1989
4.3 mm (0.17 in)
1990
7.9 mm (0.31 in)
1991
19.1 mm (0.8 in)
1992
59.9 mm (2.4 in)
1993
58.9 mm (2.3 in)
1994
98.0 mm (3.9 in)
1995
61.0 mm (2.4 in)
1996
85.1 mm (3.4 in)
1997
54.1 mm (2.1 in)
1998
100.1 mm (3.9 in)
1999
23.1 mm (0.9 in)
2000
n/a
2001
n/a
2002
0.0 mm (0.00 in)
2003
14.0 mm (0.6 in)
2004
n/a
2005
n/a
2006
12.2 mm (0.5 in)
2007
52.1 mm (2.1 in)
2008
42.2 mm (1.7 in)
2009
32.0 mm (1.3 in)
2010
36.1 mm (1.4 in)
2011
50.0 mm (2.0 in)
2012
53.1 mm (2.1 in)
2013
9.9 mm (0.39 in)
2014
54.1 mm (2.1 in)
2015
39.1 mm (1.5 in)
2016
59.9 mm (2.4 in)
2017
111.0 mm (4.4 in)
2018
48.0 mm (1.9 in)
2019
55.9 mm (2.2 in)
2020
19.1 mm (0.8 in)
2021
96.0 mm (3.8 in)
2022
89.9 mm (3.5 in)
2023
18.0 mm (0.7 in)
2024
70.1 mm (2.8 in)
2025
30.0 mm (1.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Sultan Iskandarmuda, 1973 to 2025. The record is 146.8 mm (5.8 in) in 1980, marked on the chart; the median year is 60.7 mm (2.4 in).
Wettest five days (Rx5day) at Sultan Iskandarmuda by year
Year
Wettest five days (Rx5day)
1973
18.8 mm (0.7 in)
1974
15.0 mm (0.6 in)
1975
0.0 mm (0.00 in)
1976
11.9 mm (0.5 in)
1977
9.9 mm (0.39 in)
1978
13.0 mm (0.5 in)
1979
121.9 mm (4.8 in)
1980
146.8 mm (5.8 in)
1981
64.0 mm (2.5 in)
1982
n/a
1983
3.0 mm (0.12 in)
1984
n/a
1985
n/a
1986
n/a
1987
n/a
1988
n/a
1989
n/a
1990
n/a
1991
6.1 mm (0.24 in)
1992
60.9 mm (2.4 in)
1993
73.2 mm (2.9 in)
1994
132.0 mm (5.2 in)
1995
60.7 mm (2.4 in)
1996
139.7 mm (5.5 in)
1997
68.1 mm (2.7 in)
1998
102.1 mm (4.0 in)
1999
30.2 mm (1.2 in)
2000
n/a
2001
n/a
2002
n/a
2003
n/a
2004
n/a
2005
n/a
2006
n/a
2007
n/a
2008
n/a
2009
n/a
2010
n/a
2011
n/a
2012
n/a
2013
n/a
2014
n/a
2015
n/a
2016
n/a
2017
n/a
2018
n/a
2019
n/a
2020
n/a
2021
n/a
2022
n/a
2023
n/a
2024
n/a
2025
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Sultan Iskandarmuda, 1973 to 2025. The record is 28 days in 1995, marked on the chart; the median year is 7 days.
Longest dry spell (CDD) at Sultan Iskandarmuda by year
Year
Longest dry spell (CDD)
1973
13 days
1974
15 days
1975
5 days
1976
16 days
1977
22 days
1978
20 days
1979
10 days
1980
8 days
1981
7 days
1982
3 days
1983
6 days
1984
2 days
1985
3 days
1986
2 days
1987
4 days
1988
3 days
1989
2 days
1990
2 days
1991
5 days
1992
7 days
1993
14 days
1994
19 days
1995
28 days
1996
22 days
1997
18 days
1998
19 days
1999
15 days
2000
n/a
2001
n/a
2002
1 day
2003
n/a
2004
n/a
2005
n/a
2006
n/a
2007
n/a
2008
n/a
2009
n/a
2010
n/a
2011
n/a
2012
1 day
2013
n/a
2014
n/a
2015
1 day
2016
n/a
2017
n/a
2018
n/a
2019
n/a
2020
n/a
2021
n/a
2022
n/a
2023
1 day
2024
1 day
2025
n/a
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 Sultan Iskandarmuda standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sultan Iskandarmuda 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.