Surabaya

Jawa Timur

-7.258°, 112.752°

Record: 1950–2026
Years: 77

Nothing in Surabaya’s record stands out yet.

Every tracked measure has drifted by less than 0.15 standard deviations per decade — the threshold this page uses to call a signal a finding rather than noise. The charts below show each one in full.

What the record shows

Where the numbers come from

Every square in the grid below is one month. Here is one, day by day.

Jun 2026 in Surabaya — the most recent month with a reading for every single day.

bar height = that day’s highest temperature
30° = the same number, in °C
1mm = that day’s rainfall

132°0mm
232°0mm
332°1mm
433°0mm
532°1mm
632°0mm
732°0mm
832°0mm
932°0mm
1031°0mm
1133°0mm
1229°10mm
1331°1mm
1432°1mm
1533°0mm
1632°0mm
1732°1mm
1832°0mm
1933°0mm
2032°1mm
2132°2mm
2232°1mm
2331°2mm
2431°6mm
2531°1mm
2632°0mm
2732°0mm
2832°0mm
2932°0mm
3031°0mm

A “hot day” is any day above 34.1°C. Drag to see the rule change what it counts.

29°C33°C

0 of 30 days in Jun 2026 qualify.

Those 30 days collapse into three numbers. That is the whole of what “a month” means on this site:

Add them up: 27.6 mm; Total rainfall. This is the value the Rainfall fingerprint paints for Jun 2026.
Average them: 31.7°C; Mean daily high — not the hottest day, the typical one.
Count them: 0 days; Days over the threshold. A count, so one very hot day counts the same as any other.

Checked against the stored record: the grid below holds 27.6 mm and 31.7°C for Jun 2026. Those are the same three operations on the same days, so they match what is shown above exactly — verified for all 90 cities, not assumed. Multiply this by 12 months and 77 years and you have the fingerprint.

The signature view

Climate Fingerprint

Total monthly rainfall · 1950–2026

One cell is one month — an average (or a count) over its 28–31 days, not a single reading.

Monthly precipitation for Surabaya, 1950 to 2026, in mm
Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2026	250.2 mm	242.8 mm	240.4 mm	126.1 mm	73.0 mm	27.6 mm	1.1 mm	no data	no data	no data	no data	no data
2025	378.2 mm	276.8 mm	263.0 mm	123.3 mm	274.2 mm	74.1 mm	10.6 mm	34.2 mm	25.4 mm	119.5 mm	382.9 mm	258.2 mm
2024	339.5 mm	391.5 mm	239.4 mm	225.4 mm	5.7 mm	33.8 mm	7.5 mm	3.7 mm	11.4 mm	19.5 mm	284.3 mm	426.0 mm
2023	254.7 mm	362.1 mm	273.7 mm	243.4 mm	76.1 mm	3.3 mm	28.9 mm	1.1 mm	0.1 mm	4.0 mm	56.0 mm	175.6 mm
2022	313.8 mm	358.8 mm	405.0 mm	174.4 mm	269.9 mm	100.4 mm	40.8 mm	42.1 mm	21.0 mm	161.7 mm	271.7 mm	256.1 mm
2021	402.4 mm	344.8 mm	246.3 mm	108.4 mm	39.4 mm	133.0 mm	9.0 mm	4.7 mm	38.0 mm	48.3 mm	383.6 mm	338.5 mm
2020	271.1 mm	358.4 mm	288.9 mm	245.2 mm	144.6 mm	18.7 mm	11.6 mm	13.7 mm	0.6 mm	103.5 mm	160.9 mm	371.6 mm
2019	382.5 mm	241.3 mm	362.0 mm	202.3 mm	14.2 mm	1.7 mm	12.2 mm	3.9 mm	2.5 mm	0.2 mm	24.0 mm	168.8 mm
2018	272.9 mm	253.0 mm	249.1 mm	88.6 mm	11.4 mm	30.3 mm	0.1 mm	0.2 mm	4.5 mm	4.8 mm	123.5 mm	235.7 mm
2017	308.7 mm	268.3 mm	241.3 mm	158.3 mm	114.6 mm	113.8 mm	43.7 mm	0.3 mm	16.8 mm	36.7 mm	283.0 mm	241.3 mm
2016	206.2 mm	402.9 mm	260.6 mm	227.3 mm	120.0 mm	136.9 mm	69.0 mm	20.1 mm	107.1 mm	333.1 mm	228.5 mm	233.9 mm
2015	254.9 mm	241.1 mm	281.5 mm	287.7 mm	69.2 mm	5.8 mm	1.9 mm	1.6 mm	0.0 mm	1.1 mm	62.5 mm	262.6 mm
2014	306.2 mm	207.5 mm	186.9 mm	155.2 mm	65.7 mm	47.6 mm	22.9 mm	1.4 mm	0.3 mm	3.6 mm	145.8 mm	402.4 mm
2013	344.1 mm	268.1 mm	244.7 mm	240.4 mm	168.7 mm	209.6 mm	82.2 mm	1.1 mm	2.4 mm	34.0 mm	222.3 mm	432.1 mm
2012	282.4 mm	316.8 mm	230.8 mm	136.5 mm	105.7 mm	31.3 mm	9.8 mm	0.4 mm	2.0 mm	24.1 mm	123.5 mm	317.6 mm
2011	259.5 mm	184.4 mm	203.0 mm	218.4 mm	128.0 mm	21.7 mm	4.1 mm	0.8 mm	4.9 mm	53.7 mm	256.0 mm	248.6 mm
2010	333.1 mm	292.0 mm	375.1 mm	391.6 mm	251.7 mm	82.3 mm	92.4 mm	70.7 mm	213.6 mm	206.2 mm	239.8 mm	331.2 mm
2009	225.5 mm	328.3 mm	162.5 mm	129.0 mm	171.5 mm	30.1 mm	7.6 mm	1.8 mm	12.6 mm	16.4 mm	98.7 mm	147.5 mm
2008	225.5 mm	249.7 mm	373.8 mm	150.2 mm	46.9 mm	31.5 mm	0.0 mm	11.6 mm	2.0 mm	62.8 mm	256.4 mm	283.8 mm
2007	166.1 mm	236.4 mm	270.5 mm	227.4 mm	71.8 mm	81.2 mm	6.2 mm	3.9 mm	1.7 mm	37.6 mm	148.9 mm	284.4 mm
2006	208.6 mm	300.1 mm	276.4 mm	181.7 mm	158.7 mm	12.0 mm	0.7 mm	1.4 mm	1.2 mm	1.9 mm	39.6 mm	299.1 mm
2005	180.8 mm	203.8 mm	225.3 mm	161.9 mm	16.1 mm	54.5 mm	19.5 mm	5.8 mm	9.6 mm	125.3 mm	120.0 mm	294.1 mm
2004	215.0 mm	200.5 mm	340.9 mm	47.2 mm	86.5 mm	31.0 mm	8.6 mm	1.0 mm	0.6 mm	9.4 mm	188.9 mm	233.7 mm
2003	305.9 mm	283.4 mm	170.9 mm	72.5 mm	78.0 mm	14.3 mm	0.2 mm	0.9 mm	11.6 mm	49.2 mm	187.9 mm	240.8 mm
2002	317.1 mm	214.9 mm	233.3 mm	146.6 mm	71.6 mm	5.9 mm	1.9 mm	0.5 mm	2.0 mm	6.2 mm	108.1 mm	224.7 mm
2001	229.4 mm	173.3 mm	322.3 mm	130.3 mm	37.5 mm	79.6 mm	7.3 mm	1.2 mm	4.3 mm	132.1 mm	216.8 mm	249.0 mm
2000	413.1 mm	259.7 mm	242.0 mm	210.1 mm	133.4 mm	66.6 mm	3.6 mm	3.3 mm	3.5 mm	187.4 mm	226.4 mm	157.6 mm
1999	329.1 mm	247.4 mm	306.8 mm	251.5 mm	101.4 mm	24.7 mm	16.0 mm	6.7 mm	7.6 mm	98.4 mm	199.9 mm	296.5 mm
1998	177.7 mm	296.8 mm	326.3 mm	244.0 mm	124.8 mm	137.1 mm	192.4 mm	10.6 mm	99.2 mm	213.2 mm	320.8 mm	323.4 mm
1997	265.3 mm	284.0 mm	81.2 mm	145.1 mm	61.9 mm	11.4 mm	7.1 mm	0.6 mm	1.0 mm	8.5 mm	63.2 mm	269.9 mm
1996	330.6 mm	313.6 mm	185.3 mm	100.6 mm	22.2 mm	22.3 mm	26.1 mm	22.0 mm	14.4 mm	116.2 mm	234.7 mm	283.5 mm
1995	410.2 mm	276.8 mm	282.3 mm	190.6 mm	49.8 mm	87.6 mm	24.9 mm	0.6 mm	6.4 mm	53.2 mm	317.8 mm	259.5 mm
1994	383.8 mm	273.8 mm	443.4 mm	130.4 mm	20.5 mm	2.5 mm	0.2 mm	1.2 mm	0.6 mm	12.5 mm	85.4 mm	293.0 mm
1993	314.8 mm	161.2 mm	222.2 mm	211.1 mm	59.6 mm	92.2 mm	7.8 mm	3.7 mm	4.1 mm	23.7 mm	149.4 mm	204.5 mm
1992	281.2 mm	373.6 mm	293.5 mm	169.1 mm	55.2 mm	28.0 mm	6.9 mm	4.5 mm	39.3 mm	86.3 mm	186.1 mm	263.7 mm
1991	340.6 mm	173.9 mm	172.5 mm	316.1 mm	20.5 mm	4.9 mm	2.3 mm	0.4 mm	1.6 mm	8.7 mm	263.5 mm	266.0 mm
1990	398.8 mm	212.6 mm	236.1 mm	121.8 mm	112.4 mm	10.2 mm	22.3 mm	11.7 mm	7.7 mm	16.8 mm	72.9 mm	284.5 mm
1989	294.4 mm	272.6 mm	270.3 mm	209.7 mm	100.1 mm	122.9 mm	67.8 mm	5.7 mm	5.0 mm	88.5 mm	150.5 mm	216.0 mm
1988	486.0 mm	232.5 mm	229.2 mm	78.9 mm	134.1 mm	30.8 mm	8.2 mm	47.5 mm	6.3 mm	138.5 mm	292.6 mm	182.3 mm
1987	299.1 mm	199.1 mm	192.6 mm	71.7 mm	72.9 mm	35.1 mm	3.4 mm	0.4 mm	1.5 mm	11.4 mm	162.9 mm	342.6 mm
1986	287.1 mm	237.0 mm	406.8 mm	163.8 mm	30.7 mm	154.4 mm	31.1 mm	2.6 mm	22.3 mm	116.3 mm	196.0 mm	222.4 mm
1985	236.2 mm	278.2 mm	237.2 mm	181.0 mm	62.0 mm	67.7 mm	38.8 mm	10.6 mm	28.3 mm	67.7 mm	189.6 mm	265.6 mm
1984	276.5 mm	356.7 mm	313.2 mm	249.2 mm	128.4 mm	30.9 mm	14.1 mm	13.8 mm	185.1 mm	77.3 mm	263.0 mm	313.0 mm
1983	375.5 mm	297.4 mm	346.7 mm	290.4 mm	284.0 mm	13.3 mm	3.3 mm	0.9 mm	4.2 mm	159.2 mm	317.3 mm	322.6 mm
1982	278.1 mm	255.5 mm	245.5 mm	265.5 mm	14.2 mm	19.1 mm	2.8 mm	1.0 mm	1.0 mm	1.7 mm	19.3 mm	233.6 mm
1981	217.1 mm	273.9 mm	220.3 mm	215.8 mm	113.7 mm	65.6 mm	88.2 mm	3.8 mm	54.9 mm	58.3 mm	307.8 mm	309.0 mm
1980	260.6 mm	229.5 mm	199.9 mm	238.1 mm	54.8 mm	16.5 mm	20.3 mm	3.7 mm	2.5 mm	96.2 mm	217.8 mm	288.5 mm
1979	209.4 mm	218.5 mm	258.5 mm	174.0 mm	162.4 mm	51.6 mm	3.4 mm	2.0 mm	40.1 mm	40.9 mm	78.4 mm	237.6 mm
1978	288.9 mm	210.2 mm	328.4 mm	134.2 mm	190.7 mm	193.1 mm	94.1 mm	66.2 mm	75.7 mm	73.0 mm	157.8 mm	306.0 mm
1977	233.7 mm	204.3 mm	283.5 mm	156.0 mm	77.1 mm	76.4 mm	1.1 mm	8.5 mm	5.8 mm	5.1 mm	115.9 mm	303.2 mm
1976	197.3 mm	148.1 mm	256.8 mm	62.0 mm	28.2 mm	2.1 mm	2.7 mm	17.1 mm	9.5 mm	99.5 mm	193.9 mm	165.8 mm
1975	255.0 mm	200.2 mm	296.8 mm	228.7 mm	179.5 mm	16.5 mm	34.7 mm	9.1 mm	148.3 mm	232.3 mm	238.5 mm	280.3 mm
1974	166.8 mm	236.5 mm	179.3 mm	146.7 mm	96.6 mm	36.9 mm	53.6 mm	44.4 mm	79.2 mm	141.0 mm	248.5 mm	197.9 mm
1973	393.2 mm	202.8 mm	401.3 mm	211.9 mm	269.2 mm	87.5 mm	52.4 mm	21.6 mm	92.2 mm	54.0 mm	248.6 mm	204.1 mm
1972	250.2 mm	163.8 mm	172.5 mm	84.5 mm	107.7 mm	9.0 mm	2.4 mm	0.5 mm	0.0 mm	0.9 mm	104.1 mm	289.2 mm
1971	334.6 mm	248.6 mm	288.1 mm	70.1 mm	90.3 mm	108.3 mm	16.9 mm	5.5 mm	16.5 mm	165.5 mm	299.9 mm	186.7 mm
1970	228.0 mm	195.5 mm	281.2 mm	206.3 mm	158.3 mm	65.3 mm	12.8 mm	0.3 mm	38.0 mm	63.0 mm	145.3 mm	340.9 mm
1969	257.9 mm	190.5 mm	213.3 mm	212.5 mm	29.4 mm	24.2 mm	0.1 mm	1.0 mm	4.0 mm	52.9 mm	63.5 mm	192.9 mm
1968	374.2 mm	185.3 mm	255.9 mm	197.5 mm	255.0 mm	99.0 mm	166.2 mm	25.1 mm	5.9 mm	20.4 mm	173.9 mm	292.0 mm
1967	329.0 mm	296.2 mm	203.4 mm	127.0 mm	16.4 mm	0.5 mm	0.7 mm	4.9 mm	1.6 mm	15.0 mm	124.1 mm	386.6 mm
1966	283.5 mm	378.5 mm	333.5 mm	85.4 mm	23.5 mm	52.0 mm	6.9 mm	0.5 mm	0.7 mm	98.6 mm	214.2 mm	439.4 mm
1965	271.3 mm	198.9 mm	210.4 mm	104.5 mm	58.6 mm	11.4 mm	3.0 mm	1.7 mm	1.3 mm	6.2 mm	58.3 mm	272.3 mm
1964	229.4 mm	176.8 mm	275.2 mm	87.5 mm	100.0 mm	43.7 mm	2.4 mm	5.6 mm	104.1 mm	259.3 mm	159.7 mm	119.6 mm
1963	266.7 mm	220.6 mm	341.7 mm	116.9 mm	49.0 mm	20.0 mm	0.1 mm	1.1 mm	1.9 mm	5.0 mm	21.0 mm	206.9 mm
1962	268.2 mm	202.6 mm	240.1 mm	233.8 mm	77.0 mm	47.5 mm	31.8 mm	12.6 mm	6.0 mm	105.3 mm	146.6 mm	275.7 mm
1961	220.8 mm	197.8 mm	121.4 mm	140.7 mm	96.6 mm	13.6 mm	2.2 mm	2.1 mm	1.0 mm	15.0 mm	103.1 mm	220.5 mm
1960	294.6 mm	212.2 mm	189.2 mm	132.7 mm	194.6 mm	26.0 mm	46.6 mm	6.9 mm	27.7 mm	37.1 mm	210.0 mm	182.2 mm
1959	238.1 mm	232.0 mm	202.3 mm	132.0 mm	176.1 mm	98.0 mm	49.8 mm	0.4 mm	9.6 mm	26.7 mm	122.9 mm	325.0 mm
1958	244.6 mm	297.4 mm	310.8 mm	170.4 mm	108.3 mm	65.7 mm	66.4 mm	33.0 mm	24.0 mm	122.3 mm	123.4 mm	259.3 mm
1957	221.6 mm	246.3 mm	259.9 mm	70.8 mm	43.7 mm	7.8 mm	91.8 mm	58.9 mm	1.8 mm	10.6 mm	104.8 mm	299.9 mm
1956	245.3 mm	194.9 mm	115.3 mm	117.6 mm	218.8 mm	191.7 mm	76.2 mm	117.9 mm	6.3 mm	98.7 mm	108.0 mm	175.6 mm
1955	270.6 mm	325.7 mm	232.3 mm	114.0 mm	253.4 mm	120.7 mm	144.2 mm	34.6 mm	9.1 mm	71.2 mm	391.4 mm	259.2 mm
1954	196.3 mm	250.5 mm	109.9 mm	239.7 mm	154.7 mm	172.4 mm	64.5 mm	36.0 mm	40.5 mm	94.6 mm	218.8 mm	195.6 mm
1953	173.5 mm	143.0 mm	127.8 mm	171.6 mm	108.2 mm	13.0 mm	33.0 mm	4.2 mm	1.4 mm	6.5 mm	158.5 mm	204.3 mm
1952	308.5 mm	306.3 mm	138.5 mm	121.4 mm	125.1 mm	10.1 mm	7.5 mm	21.1 mm	21.7 mm	74.2 mm	183.4 mm	153.2 mm
1951	283.8 mm	223.9 mm	204.6 mm	57.9 mm	60.8 mm	90.5 mm	9.0 mm	2.7 mm	7.3 mm	16.1 mm	181.0 mm	267.6 mm
1950	193.5 mm	259.9 mm	136.7 mm	155.1 mm	136.5 mm	36.8 mm	1.2 mm	3.4 mm	3.9 mm	67.8 mm	183.7 mm	234.0 mm

Your baseline

Since 1950, Surabaya’s average daily high has moved +0.4 °C.

Compare against1950–2006

An endpoint comparison, not the fitted trend in “what moved most” above — the two answer different questions and will not agree. This compares the 10-year mean starting at your baseline against the last 10 complete years (2016–2025), using monthly average daily maximum. Both ends are decade means so one strong El Niño cannot pass for a trend. Baselines after 2006 are not offered — too few years remain for the comparison to mean anything.

How does Surabaya compare?

Put it side by side with another Indonesian city.

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