Kotabumi climate — normals and trends
Kotabumi (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 2,051 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 (27.4 °C on average) and the coldest is January (26.1 °C). Rainfall peaks in December.
Kotabumi averages 0 frost days, 291 hot days (≥ 30 °C) and 272 rainy days per year.
Kotabumi has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.4 °C (on 6 November 1997) and the coldest 17.6 °C (on 20 June 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
KotabumiLampung
- coords
- -4.83°, 104.88°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.6°C
Average daily high
31.3°C
Average daily low
23.3°C
Annual rainfall
2,051mm
Sunshine / day
10.1h
Mean relative humidity
83%
Average peak wind
11.3km/h
Seasonal range
1.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
291 d/yr
Rainy days (≥ 1 mm)
272 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.8 °C
Average feels-like low
27.7 °C
Average peak gust
26.5 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
18.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.65 · p = < 0.001
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
38.4 °C
6 November 1997
Coldest day
17.6 °C
20 June 1941
Wettest day
111 mm
25 February 2025
Windiest day
29.5 km/h
19 January 1982
Strongest gust
58.3 km/h
5 March 1977
Hottest feels-like
43.0 °C
22 April 1958
Coldest feels-like
18.8 °C
25 July 1941
Sunniest day
12.0 h
8 December 1943
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
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 30.7 °C | +0.4 °C | 262 mm | +27 mm |
| Feb | 31.3 °C | +0.6 °C | 322 mm | +93 mm |
| Mar | 31.9 °C | +0.8 °C | 256 mm | +2 mm |
| Apr | 31.9 °C | +0.6 °C | 217 mm | +11 mm |
| May | 32.7 °C | +1.5 °C | 148 mm | -6 mm |
| Jun | 31.6 °C | +0.7 °C | 101 mm | -5 mm |
| Jul | 31.9 °C | +1.1 °C | 70 mm | -27 mm |
| Aug | 32.4 °C | +0.9 °C | 135 mm | +56 mm |
| Sep | 32.0 °C | -0.4 °C | 124 mm | +38 mm |
| Oct | 32.9 °C | +0.1 °C | 150 mm | +23 mm |
| Nov | 32.8 °C | +1.1 °C | 123 mm | -87 mm |
| Dec | 31.4 °C | +0.8 °C | 332 mm | +62 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Kotabumi?
Kotabumi has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 2,051 mm of precipitation per year.
What is the hottest day ever recorded in Kotabumi?
The hottest day measured in Kotabumi between 1940 and 2025 was 6 November 1997, reaching 38.4 °C.
What is the coldest day in Kotabumi?
The coldest day measured in Kotabumi between 1940 and 2025 was 20 June 1941, at 17.6 °C.
Does it snow in Kotabumi?
Almost never: Kotabumi sees virtually no snow, with about 0 frost days per year.
Has the climate of Kotabumi warmed?
Yes: Kotabumi warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kotabumi?
The wettest day measured in Kotabumi between 1940 and 2025 was 25 February 2025, with 111 mm of rain in 24 hours.
What was the windiest day in Kotabumi?
The windiest day measured in Kotabumi between 1940 and 2025 was 19 January 1982, with winds reaching 29.5 km/h.
What is the warmest month in Kotabumi?
The warmest month in Kotabumi is October (27.4 °C on average); the coldest is January (26.1 °C).
How much does it rain in Kotabumi?
Kotabumi receives on average 2,051 mm of precipitation per year, spread over about 272 rainy days.
Is it sunny in Kotabumi?
Kotabumi gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in Kotabumi?
Yes: Kotabumi has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kotabumi?
In Kotabumi, between 1940 and 2025, the highest apparent temperature reached 43.0 °C on 22 April 1958, and the lowest was 18.8 °C on 25 July 1941.
Compare Kotabumi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kotabumi