Rangkasbitung climate — normals and trends

Rangkasbitung (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.1 °C and it receives 2,119 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 October (26.6 °C on average) and the coldest is January (25.6 °C). Rainfall peaks in January.

Rangkasbitung averages 0 frost days, 201 hot days (≥ 30 °C) and 276 rainy days per year.

Rangkasbitung has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.3 °C (on 1 November 1997) and the coldest 17.7 °C (on 25 July 1941).

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

RangkasbitungBanten

coords
-6.36°, 106.25°
period
19402025 · 86 yrs
AfTropical rainforestWarmest monthOctoberColdest monthJanuaryWettest monthJanuaryDriest monthAugust

Mean daily temperature

26.1°C

Average daily high

30.0°C

Average daily low

23.2°C

Annual rainfall

2,119mm

Sunshine / day

10.3h

Mean relative humidity

84%

Average peak wind

9.6km/h

Seasonal range

1.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

201 d/yr

Rainy days (≥ 1 mm)

276 d/yr

Annual snowfall

0.0 cm

Average feels-like high

35.8 °C

Average feels-like low

27.6 °C

Average peak gust

25.2 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

18.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.72 · p = < 0.001

1940Each stripe is one year, from 1940 (left) to 2025 (right). Blue = colder than the period average, red = warmer.2025

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

36.3 °C

1 November 1997

Coldest day

17.7 °C

25 July 1941

Wettest day

181 mm

18 June 2025

Windiest day

25.3 km/h

21 February 1985

Strongest gust

67.3 km/h

10 February 2001

Hottest feels-like

42.4 °C

24 April 1998

Coldest feels-like

19.4 °C

25 July 1941

Sunniest day

12.2 h

13 November 1948

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202533.7 °C9 May 202522.2 °C19 July 202526.9 °C2,652 mm2790
202434.2 °C26 October 202421.6 °C15 July 202427.3 °C2,338 mm3100
202336.1 °C17 October 202321.7 °C6 September 202327.1 °C1,567 mm2870
202233.4 °C25 April 202221.2 °C30 June 202226.6 °C2,375 mm2470
202133.7 °C18 December 202121.5 °C28 July 202126.7 °C2,216 mm2450
202032.9 °C24 May 202021.0 °C1 August 202026.8 °C2,508 mm2660
201935.3 °C21 October 201921.0 °C7 August 201927.2 °C1,645 mm3200
201834.1 °C17 September 201820.3 °C6 August 201826.9 °C1,759 mm2920
201733.4 °C22 September 201722.3 °C27 August 201726.9 °C2,076 mm2800
201633.0 °C13 April 201621.7 °C5 August 201627.0 °C3,172 mm2840
201534.4 °C18 September 201520.7 °C2 July 201526.9 °C1,972 mm2850
201434.9 °C11 October 201420.9 °C6 September 201426.7 °C2,218 mm2650
201333.6 °C28 March 201321.6 °C14 August 201326.6 °C2,807 mm2470
201233.0 °C27 September 201221.1 °C10 August 201226.7 °C2,033 mm2710
201133.6 °C17 October 201121.6 °C1 August 201126.6 °C1,725 mm2520
201033.2 °C9 May 201021.5 °C11 October 201026.7 °C2,842 mm2420
200933.8 °C14 September 200920.7 °C12 July 200926.6 °C2,009 mm2750
200833.0 °C18 September 200821.1 °C22 July 200826.3 °C2,171 mm2460
200733.8 °C26 November 200720.7 °C28 July 200726.6 °C1,912 mm2540
200634.3 °C2 October 200619.7 °C8 August 200626.6 °C1,966 mm2760
200532.7 °C8 April 200520.9 °C10 August 200526.3 °C1,955 mm2360
200433.1 °C27 March 200418.6 °C4 June 200426.5 °C1,886 mm2540
200333.2 °C23 October 200320.6 °C6 August 200326.5 °C1,864 mm2670
200234.7 °C21 October 200219.0 °C15 August 200226.4 °C1,708 mm2580
200132.5 °C12 November 200118.2 °C6 July 200125.9 °C2,489 mm1900
200033.0 °C21 October 200020.0 °C20 August 200026.0 °C2,221 mm1930
199932.9 °C19 September 199919.4 °C19 August 199926.0 °C2,257 mm2100
199833.6 °C8 October 199821.5 °C9 August 199826.7 °C3,382 mm2680
199736.3 °C1 November 199719.9 °C18 August 199726.7 °C1,437 mm2860
199632.5 °C7 May 199620.9 °C4 August 199626.2 °C2,500 mm2160
199533.3 °C23 September 199521.4 °C25 August 199526.4 °C2,730 mm2480
199434.0 °C5 October 199419.2 °C15 August 199426.4 °C2,103 mm2480
199332.7 °C7 November 199321.1 °C5 September 199326.1 °C2,536 mm2240
199232.4 °C10 June 199220.7 °C18 July 199225.6 °C2,826 mm1770
199134.5 °C1 October 199120.6 °C7 July 199126.0 °C2,170 mm1940
199033.3 °C21 April 199020.3 °C8 October 199025.9 °C2,363 mm1690
198932.2 °C6 June 198920.5 °C9 August 198925.9 °C2,360 mm1790
198832.8 °C6 October 198821.0 °C30 July 198826.1 °C2,217 mm2040
198734.1 °C20 September 198720.5 °C5 August 198726.3 °C2,040 mm2430
198631.8 °C2 December 198619.8 °C4 July 198625.8 °C2,658 mm1600
198532.3 °C20 November 198520.5 °C7 July 198525.9 °C2,213 mm1600
198432.1 °C29 October 198419.7 °C17 September 198425.7 °C2,895 mm1340
198334.1 °C31 August 198321.2 °C6 August 198326.5 °C2,563 mm2490
198233.2 °C27 October 198219.9 °C3 September 198226.1 °C2,061 mm2280
198132.2 °C8 April 198120.9 °C13 August 198126.0 °C2,749 mm1630
198032.5 °C8 October 198020.8 °C29 August 198026.1 °C2,352 mm1970
197933.4 °C16 October 197920.9 °C15 June 197926.0 °C2,517 mm2170
197832.6 °C9 March 197820.9 °C28 September 197826.0 °C2,825 mm1840
197733.0 °C26 October 197720.1 °C5 September 197726.0 °C2,162 mm2020
197633.2 °C21 October 197620.1 °C8 August 197625.8 °C1,777 mm1830
197532.0 °C26 September 197520.4 °C11 July 197525.7 °C2,278 mm1350
197433.2 °C19 October 197420.5 °C29 December 197425.5 °C2,278 mm1280
197332.0 °C20 February 197320.1 °C13 August 197325.9 °C3,028 mm1670
197235.5 °C25 October 197219.1 °C9 June 197225.9 °C1,473 mm1940
197132.1 °C11 May 197120.2 °C16 June 197125.5 °C1,886 mm1480
197033.2 °C2 October 197020.4 °C12 July 197025.9 °C1,995 mm1870
196933.4 °C8 October 196920.1 °C4 January 196926.0 °C1,526 mm2220
196832.4 °C1 April 196820.7 °C10 November 196825.5 °C2,335 mm1390
196735.4 °C13 October 196720.0 °C30 July 196725.8 °C1,837 mm2070
196634.0 °C11 September 196620.6 °C26 June 196626.1 °C1,754 mm2290
196534.8 °C21 October 196521.0 °C8 July 196526.1 °C1,623 mm2480
196433.6 °C22 September 196420.9 °C26 July 196426.1 °C1,906 mm2480
196335.1 °C2 October 196320.8 °C2 August 196326.5 °C1,509 mm2710
196232.6 °C10 May 196220.7 °C13 September 196225.8 °C2,425 mm1920
196134.0 °C13 October 196118.8 °C16 July 196126.1 °C1,782 mm2550
196033.8 °C26 October 196021.8 °C23 June 196026.0 °C2,187 mm2300
195934.5 °C23 October 195919.1 °C5 August 195925.8 °C2,330 mm1550
195832.3 °C11 September 195821.1 °C17 June 195826.0 °C2,744 mm2250
195733.9 °C11 November 195720.7 °C18 August 195726.0 °C1,921 mm1910
195632.2 °C8 May 195620.2 °C31 July 195625.4 °C1,964 mm1240
195531.9 °C8 September 195520.5 °C6 July 195525.1 °C2,484 mm840
195432.1 °C5 March 195420.2 °C13 September 195425.1 °C2,445 mm690
195334.5 °C4 September 195320.5 °C30 July 195325.9 °C1,341 mm1690
195231.7 °C10 September 195220.1 °C7 July 195225.5 °C2,166 mm1120
195134.0 °C19 November 195120.7 °C20 July 195125.7 °C1,590 mm1460
195031.8 °C10 November 195019.3 °C22 November 195025.3 °C1,766 mm780
194934.8 °C21 November 194920.1 °C8 July 194926.2 °C790 mm2490
194834.2 °C11 October 194820.2 °C7 January 194826.0 °C916 mm1830
194731.7 °C5 March 194720.1 °C30 September 194725.4 °C1,654 mm780
194633.1 °C26 October 194619.0 °C28 February 194625.2 °C1,540 mm1000
194530.9 °C9 October 194519.3 °C2 October 194524.9 °C2,025 mm390
194431.8 °C21 August 194419.4 °C10 June 194425.0 °C1,923 mm530
194332.0 °C7 September 194319.2 °C1 April 194324.9 °C1,525 mm440
194230.5 °C17 October 194220.1 °C10 July 194224.8 °C2,181 mm160
194133.2 °C16 September 194117.7 °C25 July 194125.3 °C1,810 mm890
194034.4 °C8 November 194019.3 °C18 August 194025.3 °C1,495 mm880

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?

Across the whole year

Average daily high
30.6 °C
+0.6 °C
Hot days (≥ 30 °C)
279 d/yr
+78
Frost days (< 0 °C)
0 d/yr
0
Annual rainfall
2652 mm
+533 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan30.0 °C+1.1 °C307 mm+28 mm
Feb30.4 °C+1.3 °C231 mm-32 mm
Mar30.7 °C+1.0 °C240 mm-5 mm
Apr30.6 °C+0.4 °C268 mm+57 mm
May31.3 °C+0.9 °C172 mm+22 mm
Jun30.5 °C+0.3 °C284 mm+185 mm
Jul30.5 °C+0.4 °C68 mm-10 mm
Aug30.4 °C+0.1 °C185 mm+106 mm
Sep30.7 °C-0.1 °C125 mm+30 mm
Oct31.5 °C+0.5 °C208 mm+58 mm
Nov30.6 °C+0.3 °C307 mm+89 mm
Dec30.3 °C+0.8 °C258 mm+6 mm

The year's extremes

Hottest day
33.7 °C
9 May 2025
Coldest day
22.2 °C
19 Jul 2025
Wettest day
181.1 mm
18 Jun 2025
Windiest day
19.6 km/h
24 Nov 2025
Strongest gust
53.3 km/h
5 Feb 2025
Hottest feels-like
41.8 °C
4 Oct 2025
Coldest feels-like
25.5 °C
23 Jul 2025
Sunniest day
12.0 h
3 Jan 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 Rangkasbitung?

Rangkasbitung has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.1 °C and it receives 2,119 mm of precipitation per year.

What is the hottest day ever recorded in Rangkasbitung?

The hottest day measured in Rangkasbitung between 1940 and 2025 was 1 November 1997, reaching 36.3 °C.

What is the coldest day in Rangkasbitung?

The coldest day measured in Rangkasbitung between 1940 and 2025 was 25 July 1941, at 17.7 °C.

Does it snow in Rangkasbitung?

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

Has the climate of Rangkasbitung warmed?

Yes: Rangkasbitung warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Rangkasbitung?

The wettest day measured in Rangkasbitung between 1940 and 2025 was 18 June 2025, with 181 mm of rain in 24 hours.

What was the windiest day in Rangkasbitung?

The windiest day measured in Rangkasbitung between 1940 and 2025 was 21 February 1985, with winds reaching 25.3 km/h.

What is the warmest month in Rangkasbitung?

The warmest month in Rangkasbitung is October (26.6 °C on average); the coldest is January (25.6 °C).

How much does it rain in Rangkasbitung?

Rangkasbitung receives on average 2,119 mm of precipitation per year, spread over about 276 rainy days.

Is it sunny in Rangkasbitung?

Rangkasbitung gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.

Are there tropical nights in Rangkasbitung?

Yes: Rangkasbitung has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Rangkasbitung?

In Rangkasbitung, between 1940 and 2025, the highest apparent temperature reached 42.4 °C on 24 April 1998, and the lowest was 19.4 °C on 25 July 1941.

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