Sibolga

Sumatera Utara

1.743°, 98.779°

Record: 1950–2026
Years: 77

Average daily high in Sibolga is trending hotter — 0.1 °C per decade.

Averaged over the first ten years of the record it was 28.15; over the last ten, 28.98 (°C, 1950–2025).

Unusually hot days: ↑ 7.3 days / decade
Heavy rain days: ↑ 1.2 days / decade
Longest hot spell: ↑ 0.6 days / decade

Ranked by OLS slope per decade, divided by the series' standard deviation, which puts signals measured in different units on one comparable scale. It is a normalisation, not a weighting — no signal is declared more important than another. Needs 30+ years; the current, incomplete year is excluded.

What the record shows

Where the numbers come from

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

Jul 2026 in Sibolga — 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

131°1mm
231°1mm
332°1mm
431°14mm
529°16mm
631°4mm
731°2mm
832°0mm
931°8mm
1032°1mm
1130°6mm
1229°4mm
1331°4mm
1431°2mm
1532°1mm
1631°2mm
1731°19mm
1830°25mm
1930°16mm
2030°33mm
2130°4mm
2230°9mm
2331°3mm
2431°2mm
2529°13mm
2630°14mm
2731°2mm
2831°1mm
2931°4mm
3032°1mm
3132°0mm

A “hot day” is any day above 29.9°C. Drag to see the rule change what it counts.

28°C33°C

23 of 31 days in Jul 2026 qualify.

Those 31 days collapse into three numbers. That is the whole of what “a month” means on this site:

Add them up: 212.0 mm; Total rainfall. This is the value the Rainfall fingerprint paints for Jul 2026.
Average them: 30.6°C; Mean daily high — not the hottest day, the typical one.
Count them: 23 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 212.0 mm and 30.6°C for Jul 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 Sibolga, 1950 to 2026, in mm
Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2026	191.5 mm	355.0 mm	346.4 mm	438.1 mm	210.3 mm	279.6 mm	212.0 mm	74.9 mm	no data	no data	no data	no data
2025	405.1 mm	244.4 mm	481.2 mm	267.4 mm	205.5 mm	140.2 mm	175.9 mm	214.5 mm	281.6 mm	266.2 mm	917.2 mm	395.5 mm
2024	467.0 mm	272.3 mm	465.3 mm	387.8 mm	340.0 mm	297.8 mm	125.3 mm	765.9 mm	375.7 mm	315.8 mm	437.5 mm	354.4 mm
2023	247.7 mm	212.7 mm	323.6 mm	401.3 mm	418.0 mm	261.1 mm	293.4 mm	344.9 mm	371.8 mm	345.4 mm	332.8 mm	477.8 mm
2022	240.6 mm	248.5 mm	239.4 mm	265.1 mm	322.3 mm	358.6 mm	234.5 mm	381.4 mm	471.9 mm	471.6 mm	667.0 mm	579.2 mm
2021	265.0 mm	112.4 mm	764.8 mm	378.9 mm	396.7 mm	261.7 mm	412.4 mm	421.1 mm	388.8 mm	287.1 mm	427.4 mm	385.8 mm
2020	419.5 mm	231.2 mm	338.6 mm	473.6 mm	299.8 mm	271.3 mm	651.1 mm	278.2 mm	397.3 mm	411.8 mm	608.1 mm	524.7 mm
2019	381.2 mm	308.4 mm	460.1 mm	533.3 mm	343.7 mm	361.9 mm	320.4 mm	374.8 mm	414.3 mm	626.7 mm	303.4 mm	617.7 mm
2018	213.9 mm	304.0 mm	540.7 mm	592.4 mm	366.5 mm	237.7 mm	281.5 mm	299.9 mm	816.9 mm	613.6 mm	801.9 mm	462.1 mm
2017	713.4 mm	462.5 mm	389.2 mm	524.9 mm	529.6 mm	234.0 mm	469.1 mm	459.6 mm	757.0 mm	462.2 mm	923.1 mm	953.4 mm
2016	381.5 mm	424.4 mm	478.8 mm	377.4 mm	393.2 mm	199.3 mm	192.4 mm	220.0 mm	168.2 mm	360.9 mm	527.5 mm	526.5 mm
2015	324.5 mm	343.6 mm	474.1 mm	470.7 mm	266.5 mm	210.4 mm	197.3 mm	381.8 mm	542.1 mm	530.6 mm	513.1 mm	406.6 mm
2014	321.9 mm	70.4 mm	340.2 mm	632.4 mm	341.7 mm	97.1 mm	197.2 mm	395.7 mm	375.4 mm	528.9 mm	519.9 mm	401.1 mm
2013	192.9 mm	429.4 mm	367.6 mm	346.3 mm	206.5 mm	134.8 mm	93.1 mm	195.2 mm	174.8 mm	208.0 mm	669.8 mm	313.0 mm
2012	168.9 mm	406.1 mm	205.9 mm	242.5 mm	182.6 mm	83.9 mm	181.0 mm	367.2 mm	231.1 mm	543.6 mm	653.6 mm	715.3 mm
2011	299.3 mm	175.6 mm	197.8 mm	308.8 mm	149.0 mm	131.3 mm	109.8 mm	402.1 mm	268.9 mm	478.4 mm	561.7 mm	322.4 mm
2010	336.8 mm	402.0 mm	526.8 mm	373.7 mm	372.9 mm	143.7 mm	151.2 mm	197.6 mm	371.5 mm	286.6 mm	494.5 mm	341.3 mm
2009	397.8 mm	235.5 mm	199.7 mm	292.6 mm	142.1 mm	135.1 mm	117.9 mm	389.0 mm	211.3 mm	296.0 mm	332.6 mm	371.7 mm
2008	286.8 mm	312.1 mm	351.1 mm	432.8 mm	152.0 mm	268.5 mm	186.5 mm	311.4 mm	213.8 mm	438.3 mm	354.8 mm	441.6 mm
2007	503.4 mm	377.9 mm	323.8 mm	309.0 mm	181.8 mm	251.0 mm	324.2 mm	175.5 mm	330.5 mm	681.8 mm	281.9 mm	355.5 mm
2006	301.2 mm	484.1 mm	393.9 mm	187.0 mm	131.9 mm	156.0 mm	168.5 mm	346.4 mm	457.7 mm	412.4 mm	594.5 mm	920.6 mm
2005	327.2 mm	262.8 mm	348.6 mm	295.7 mm	197.9 mm	81.2 mm	127.8 mm	167.9 mm	179.2 mm	602.5 mm	304.3 mm	338.0 mm
2004	370.7 mm	283.6 mm	285.3 mm	366.7 mm	313.6 mm	102.5 mm	181.8 mm	113.2 mm	390.7 mm	445.0 mm	480.6 mm	429.7 mm
2003	366.4 mm	275.3 mm	289.2 mm	319.4 mm	123.5 mm	161.1 mm	175.4 mm	366.5 mm	191.1 mm	302.1 mm	603.3 mm	273.6 mm
2002	412.4 mm	397.3 mm	349.3 mm	357.2 mm	435.9 mm	175.4 mm	167.8 mm	230.0 mm	256.3 mm	578.4 mm	741.9 mm	367.8 mm
2001	321.3 mm	341.7 mm	421.7 mm	335.7 mm	64.6 mm	123.1 mm	198.1 mm	153.4 mm	252.9 mm	277.7 mm	227.4 mm	279.5 mm
2000	334.0 mm	162.4 mm	132.5 mm	343.4 mm	232.3 mm	130.3 mm	204.4 mm	291.8 mm	395.6 mm	277.9 mm	504.4 mm	355.3 mm
1999	323.8 mm	222.7 mm	256.4 mm	99.1 mm	230.3 mm	183.2 mm	154.0 mm	232.1 mm	338.6 mm	381.6 mm	372.7 mm	612.8 mm
1998	440.4 mm	403.1 mm	318.4 mm	382.3 mm	467.7 mm	117.9 mm	231.3 mm	497.0 mm	221.4 mm	331.6 mm	294.8 mm	495.7 mm
1997	171.3 mm	185.9 mm	300.2 mm	350.2 mm	266.9 mm	221.3 mm	218.1 mm	310.1 mm	310.2 mm	639.0 mm	449.1 mm	463.6 mm
1996	316.8 mm	420.7 mm	431.2 mm	478.8 mm	142.2 mm	265.3 mm	228.3 mm	540.6 mm	139.6 mm	429.0 mm	277.1 mm	205.3 mm
1995	391.9 mm	415.7 mm	270.6 mm	336.4 mm	502.2 mm	142.7 mm	165.6 mm	531.8 mm	340.3 mm	307.7 mm	264.1 mm	300.4 mm
1994	324.0 mm	390.3 mm	466.8 mm	339.1 mm	228.5 mm	267.2 mm	106.0 mm	327.8 mm	159.0 mm	584.9 mm	772.2 mm	392.9 mm
1993	498.1 mm	323.5 mm	602.7 mm	304.7 mm	332.2 mm	119.6 mm	245.7 mm	173.5 mm	332.6 mm	443.1 mm	433.0 mm	402.4 mm
1992	260.5 mm	171.8 mm	363.7 mm	304.7 mm	318.6 mm	109.4 mm	190.4 mm	176.4 mm	200.2 mm	209.4 mm	559.0 mm	553.0 mm
1991	415.0 mm	214.8 mm	309.0 mm	409.1 mm	357.0 mm	166.5 mm	214.5 mm	171.2 mm	256.1 mm	505.7 mm	983.6 mm	570.1 mm
1990	321.5 mm	315.5 mm	308.7 mm	394.3 mm	324.9 mm	104.3 mm	271.4 mm	97.1 mm	269.4 mm	404.1 mm	294.3 mm	599.1 mm
1989	644.3 mm	276.6 mm	306.4 mm	230.1 mm	142.1 mm	110.4 mm	284.2 mm	152.8 mm	298.4 mm	309.3 mm	410.4 mm	434.8 mm
1988	543.2 mm	218.8 mm	726.8 mm	613.7 mm	159.9 mm	181.5 mm	178.9 mm	364.8 mm	289.9 mm	142.9 mm	621.7 mm	265.9 mm
1987	332.8 mm	176.6 mm	372.2 mm	394.8 mm	227.7 mm	147.0 mm	357.1 mm	287.0 mm	568.7 mm	675.7 mm	383.3 mm	305.6 mm
1986	399.0 mm	174.2 mm	535.1 mm	499.4 mm	246.2 mm	161.7 mm	224.0 mm	209.4 mm	314.3 mm	265.4 mm	242.5 mm	450.8 mm
1985	302.9 mm	413.1 mm	359.2 mm	193.2 mm	219.3 mm	67.1 mm	91.4 mm	197.2 mm	219.8 mm	172.5 mm	539.4 mm	351.3 mm
1984	365.8 mm	232.5 mm	371.4 mm	217.0 mm	172.7 mm	146.6 mm	221.2 mm	217.2 mm	306.5 mm	309.7 mm	470.2 mm	362.5 mm
1983	309.5 mm	206.0 mm	406.3 mm	229.4 mm	247.6 mm	153.8 mm	120.9 mm	170.0 mm	291.2 mm	246.1 mm	158.6 mm	326.8 mm
1982	231.6 mm	306.6 mm	333.0 mm	322.7 mm	253.2 mm	32.6 mm	87.3 mm	301.7 mm	445.3 mm	485.0 mm	551.7 mm	471.2 mm
1981	169.5 mm	243.0 mm	305.4 mm	303.3 mm	224.7 mm	56.5 mm	147.4 mm	131.5 mm	381.7 mm	390.6 mm	257.3 mm	351.6 mm
1980	259.5 mm	219.4 mm	586.0 mm	307.9 mm	231.2 mm	136.8 mm	141.0 mm	183.7 mm	273.1 mm	394.9 mm	502.8 mm	286.0 mm
1979	305.4 mm	431.1 mm	220.5 mm	260.1 mm	128.2 mm	260.7 mm	216.0 mm	153.3 mm	384.2 mm	544.7 mm	599.6 mm	318.6 mm
1978	234.8 mm	409.4 mm	348.0 mm	264.1 mm	217.6 mm	107.9 mm	185.6 mm	176.7 mm	259.3 mm	333.0 mm	576.7 mm	342.4 mm
1977	329.6 mm	384.2 mm	379.1 mm	325.3 mm	174.0 mm	162.0 mm	226.3 mm	319.1 mm	377.6 mm	473.8 mm	459.9 mm	421.8 mm
1976	161.1 mm	296.8 mm	316.3 mm	340.0 mm	75.2 mm	280.3 mm	275.0 mm	190.6 mm	361.4 mm	468.5 mm	410.3 mm	440.9 mm
1975	217.6 mm	434.3 mm	168.5 mm	325.5 mm	87.4 mm	55.5 mm	107.5 mm	70.1 mm	267.7 mm	177.8 mm	356.3 mm	290.6 mm
1974	105.9 mm	289.4 mm	229.8 mm	272.4 mm	212.5 mm	113.9 mm	93.2 mm	119.3 mm	378.1 mm	182.5 mm	401.5 mm	328.3 mm
1973	249.7 mm	326.3 mm	449.6 mm	446.9 mm	267.2 mm	117.8 mm	130.6 mm	177.7 mm	227.3 mm	287.4 mm	267.6 mm	282.7 mm
1972	150.1 mm	221.6 mm	419.0 mm	346.2 mm	210.5 mm	182.4 mm	73.3 mm	296.6 mm	420.0 mm	448.4 mm	325.7 mm	376.9 mm
1971	160.6 mm	195.1 mm	250.7 mm	289.6 mm	94.2 mm	69.0 mm	82.6 mm	237.8 mm	227.8 mm	193.7 mm	195.7 mm	398.0 mm
1970	273.0 mm	167.0 mm	347.4 mm	295.5 mm	136.6 mm	128.9 mm	101.9 mm	114.9 mm	225.4 mm	328.5 mm	260.6 mm	141.6 mm
1969	310.6 mm	302.6 mm	408.9 mm	394.8 mm	373.1 mm	178.8 mm	165.8 mm	471.3 mm	166.3 mm	396.5 mm	322.8 mm	291.7 mm
1968	375.3 mm	205.3 mm	407.5 mm	425.8 mm	242.1 mm	182.8 mm	122.1 mm	166.7 mm	219.7 mm	527.9 mm	382.0 mm	595.8 mm
1967	253.6 mm	322.6 mm	256.9 mm	293.8 mm	192.6 mm	151.9 mm	62.2 mm	132.6 mm	379.9 mm	517.6 mm	556.4 mm	430.9 mm
1966	460.4 mm	393.2 mm	379.8 mm	400.3 mm	106.0 mm	169.0 mm	113.3 mm	185.9 mm	436.1 mm	363.5 mm	235.7 mm	320.0 mm
1965	204.1 mm	326.5 mm	578.3 mm	520.9 mm	181.6 mm	76.5 mm	58.2 mm	371.8 mm	245.8 mm	751.7 mm	477.4 mm	414.4 mm
1964	650.4 mm	534.1 mm	284.8 mm	500.6 mm	206.4 mm	44.1 mm	312.7 mm	74.0 mm	262.8 mm	509.6 mm	435.0 mm	449.8 mm
1963	247.1 mm	394.4 mm	370.7 mm	305.0 mm	436.2 mm	54.8 mm	190.8 mm	158.3 mm	300.9 mm	540.5 mm	436.6 mm	505.1 mm
1962	358.3 mm	210.1 mm	539.8 mm	342.7 mm	300.2 mm	126.5 mm	34.6 mm	282.7 mm	152.3 mm	624.5 mm	568.2 mm	438.2 mm
1961	351.3 mm	232.7 mm	390.5 mm	337.4 mm	133.2 mm	175.2 mm	91.0 mm	59.3 mm	236.4 mm	249.5 mm	404.2 mm	435.4 mm
1960	304.3 mm	301.3 mm	313.6 mm	305.1 mm	133.9 mm	81.3 mm	145.9 mm	131.2 mm	262.6 mm	326.1 mm	268.9 mm	648.0 mm
1959	317.5 mm	416.2 mm	421.8 mm	410.9 mm	422.1 mm	140.3 mm	72.1 mm	132.3 mm	350.4 mm	393.2 mm	522.1 mm	356.9 mm
1958	440.5 mm	385.6 mm	488.9 mm	357.3 mm	284.9 mm	98.6 mm	23.7 mm	188.3 mm	274.6 mm	471.1 mm	518.2 mm	487.2 mm
1957	282.8 mm	225.8 mm	436.4 mm	444.4 mm	329.8 mm	41.7 mm	180.6 mm	114.3 mm	342.4 mm	365.8 mm	578.6 mm	494.9 mm
1956	359.6 mm	407.5 mm	488.8 mm	290.1 mm	116.5 mm	190.1 mm	182.9 mm	124.8 mm	350.2 mm	473.4 mm	978.0 mm	677.0 mm
1955	505.1 mm	216.7 mm	452.9 mm	393.7 mm	219.5 mm	131.2 mm	88.1 mm	174.9 mm	429.8 mm	439.5 mm	370.3 mm	637.4 mm
1954	455.3 mm	372.7 mm	461.6 mm	496.4 mm	294.1 mm	160.5 mm	244.9 mm	192.0 mm	129.0 mm	440.4 mm	322.3 mm	306.6 mm
1953	490.9 mm	317.9 mm	403.8 mm	312.1 mm	325.1 mm	160.8 mm	313.7 mm	213.1 mm	263.2 mm	442.0 mm	348.8 mm	488.8 mm
1952	440.2 mm	266.3 mm	295.1 mm	305.8 mm	252.7 mm	120.7 mm	151.8 mm	141.6 mm	315.8 mm	329.4 mm	366.6 mm	242.0 mm
1951	174.4 mm	157.5 mm	220.0 mm	292.5 mm	109.0 mm	105.0 mm	201.9 mm	85.8 mm	281.7 mm	258.8 mm	373.9 mm	348.7 mm
1950	83.6 mm	238.6 mm	210.5 mm	337.1 mm	178.4 mm	317.3 mm	235.1 mm	385.7 mm	454.2 mm	280.3 mm	204.1 mm	224.5 mm

Your baseline

Since 1950, Sibolga’s average daily high has moved +0.8 °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 Sibolga compare?

Put it side by side with another Indonesian city.

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