Lamongan climate — normals and trends
Lamongan (Indonesia) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.2 °C and it receives 1,623 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 (27.8 °C on average) and the coldest is January (26.7 °C). Rainfall peaks in January.
Lamongan averages 0 frost days, 77 hot days (≥ 30 °C) and 216 rainy days per year.
Lamongan has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.5 °C (on 2 December 1949) and the coldest 21.9 °C (on 12 August 1953).
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
LamonganEast Java
- coords
- -7.12°, 112.42°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.2°C
Average daily high
29.2°C
Average daily low
25.5°C
Annual rainfall
1,623mm
Sunshine / day
10.6h
Mean relative humidity
79%
Average peak wind
16.4km/h
Seasonal range
1.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
77 d/yr
Rainy days (≥ 1 mm)
216 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.5 °C
Average feels-like low
29.4 °C
Average peak gust
27.0 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
20.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.69 · 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
33.5 °C
2 December 1949
Coldest day
21.9 °C
12 August 1953
Wettest day
142 mm
12 May 2025
Windiest day
43.5 km/h
29 December 1949
Strongest gust
70.9 km/h
25 January 1990
Hottest feels-like
39.8 °C
5 November 2016
Coldest feels-like
22.7 °C
16 August 1986
Sunniest day
12.4 h
31 December 2023
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.3 °C | +0.7 °C | 326 mm | +57 mm |
| Feb | 29.3 °C | +0.8 °C | 194 mm | -44 mm |
| Mar | 29.7 °C | +0.9 °C | 271 mm | +52 mm |
| Apr | 29.6 °C | +0.4 °C | 161 mm | -4 mm |
| May | 29.6 °C | +0.2 °C | 394 mm | +268 mm |
| Jun | 29.6 °C | +0.5 °C | 70 mm | -2 mm |
| Jul | 29.4 °C | +0.5 °C | 20 mm | -17 mm |
| Aug | 29.7 °C | +0.5 °C | 43 mm | +25 mm |
| Sep | 30.1 °C | +0.3 °C | 65 mm | +37 mm |
| Oct | 30.2 °C | +0.1 °C | 154 mm | +82 mm |
| Nov | 29.7 °C | 0.0 °C | 196 mm | +49 mm |
| Dec | 29.9 °C | +0.8 °C | 201 mm | -31 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 Lamongan?
Lamongan has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.2 °C and it receives 1,623 mm of precipitation per year.
What is the hottest day ever recorded in Lamongan?
The hottest day measured in Lamongan between 1940 and 2025 was 2 December 1949, reaching 33.5 °C.
What is the coldest day in Lamongan?
The coldest day measured in Lamongan between 1940 and 2025 was 12 August 1953, at 21.9 °C.
Does it snow in Lamongan?
Almost never: Lamongan sees virtually no snow, with about 0 frost days per year.
Has the climate of Lamongan warmed?
Yes: Lamongan warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lamongan?
The wettest day measured in Lamongan between 1940 and 2025 was 12 May 2025, with 142 mm of rain in 24 hours.
What was the windiest day in Lamongan?
The windiest day measured in Lamongan between 1940 and 2025 was 29 December 1949, with winds reaching 43.5 km/h.
What is the warmest month in Lamongan?
The warmest month in Lamongan is October (27.8 °C on average); the coldest is January (26.7 °C).
How much does it rain in Lamongan?
Lamongan receives on average 1,623 mm of precipitation per year, spread over about 216 rainy days.
Is it sunny in Lamongan?
Lamongan gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Lamongan?
Yes: Lamongan has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lamongan?
In Lamongan, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 5 November 2016, and the lowest was 22.7 °C on 16 August 1986.
Compare Lamongan with another city
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Nearby cities
The climate around Lamongan