Lahat climate — normals and trends
Lahat (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.7 °C and it receives 2,243 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 (24.9 °C). Rainfall peaks in December.
Lahat averages 0 frost days, 188 hot days (≥ 30 °C) and 267 rainy days per year.
Lahat has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.7 °C (on 29 October 2024) and the coldest 16.0 °C (on 14 October 1972).
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
LahatSouth Sumatra
- coords
- -3.79°, 103.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.7°C
Average daily high
30.2°C
Average daily low
22.3°C
Annual rainfall
2,243mm
Sunshine / day
10.2h
Mean relative humidity
82%
Average peak wind
9.0km/h
Seasonal range
1.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
188 d/yr
Rainy days (≥ 1 mm)
267 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.5 °C
Average feels-like low
26.1 °C
Average peak gust
25.0 km/h
Tropical nights (≥ 20 °C)
358 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.63 · 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
38.7 °C
29 October 2024
Coldest day
16.0 °C
14 October 1972
Wettest day
162 mm
14 May 2014
Windiest day
23.8 km/h
31 December 1949
Strongest gust
58.0 km/h
9 February 2001
Hottest feels-like
41.8 °C
18 April 2024
Coldest feels-like
16.0 °C
14 October 1972
Sunniest day
12.0 h
6 February 1949
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 | 29.1 °C | +0.4 °C | 278 mm | +18 mm |
| Feb | 29.5 °C | +0.3 °C | 316 mm | +82 mm |
| Mar | 30.6 °C | +0.9 °C | 270 mm | +10 mm |
| Apr | 30.5 °C | +0.5 °C | 332 mm | +90 mm |
| May | 31.5 °C | +1.4 °C | 141 mm | -15 mm |
| Jun | 30.5 °C | +0.4 °C | 120 mm | +30 mm |
| Jul | 31.5 °C | +1.0 °C | 92 mm | +9 mm |
| Aug | 31.0 °C | -0.3 °C | 170 mm | +84 mm |
| Sep | 30.7 °C | -0.8 °C | 221 mm | +113 mm |
| Oct | 31.4 °C | 0.0 °C | 154 mm | -26 mm |
| Nov | 32.8 °C | +2.7 °C | 92 mm | -164 mm |
| Dec | 30.2 °C | +1.0 °C | 366 mm | +77 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 Lahat?
Lahat has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 2,243 mm of precipitation per year.
What is the hottest day ever recorded in Lahat?
The hottest day measured in Lahat between 1940 and 2025 was 29 October 2024, reaching 38.7 °C.
What is the coldest day in Lahat?
The coldest day measured in Lahat between 1940 and 2025 was 14 October 1972, at 16.0 °C.
Does it snow in Lahat?
Almost never: Lahat sees virtually no snow, with about 0 frost days per year.
Has the climate of Lahat warmed?
Yes: Lahat warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lahat?
The wettest day measured in Lahat between 1940 and 2025 was 14 May 2014, with 162 mm of rain in 24 hours.
What was the windiest day in Lahat?
The windiest day measured in Lahat between 1940 and 2025 was 31 December 1949, with winds reaching 23.8 km/h.
What is the warmest month in Lahat?
The warmest month in Lahat is October (26.6 °C on average); the coldest is January (24.9 °C).
How much does it rain in Lahat?
Lahat receives on average 2,243 mm of precipitation per year, spread over about 267 rainy days.
Is it sunny in Lahat?
Lahat gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Lahat?
Yes: Lahat has on average 358 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lahat?
In Lahat, between 1940 and 2025, the highest apparent temperature reached 41.8 °C on 18 April 2024, and the lowest was 16.0 °C on 14 October 1972.
Compare Lahat with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lahat