Berastagi climate — normals and trends
Berastagi (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 21.2 °C and it receives 2,932 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 May (21.9 °C on average) and the coldest is January (20.6 °C). Rainfall peaks in November.
Berastagi averages 0 frost days, 2 hot days (≥ 30 °C) and 333 rainy days per year.
Berastagi has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.5 °C (on 12 August 1981) and the coldest 12.7 °C (on 14 January 1965).
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
BerastagiNorth Sumatra
- coords
- 3.19°, 98.51°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
21.2°C
Average daily high
26.2°C
Average daily low
17.7°C
Annual rainfall
2,932mm
Sunshine / day
9.0h
Mean relative humidity
87%
Average peak wind
7.3km/h
Seasonal range
1.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
333 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.5 °C
Average feels-like low
19.5 °C
Average peak gust
27.6 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.91 · 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
32.5 °C
12 August 1981
Coldest day
12.7 °C
14 January 1965
Wettest day
214 mm
27 November 2025
Windiest day
20.7 km/h
20 July 2025
Strongest gust
69.8 km/h
4 January 2017
Hottest feels-like
37.1 °C
20 May 1998
Coldest feels-like
11.8 °C
23 June 1940
Sunniest day
12.2 h
21 June 1940
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 | 25.5 °C | +0.3 °C | 399 mm | +181 mm |
| Feb | 26.2 °C | +0.5 °C | 212 mm | +27 mm |
| Mar | 26.8 °C | +0.5 °C | 294 mm | +67 mm |
| Apr | 27.0 °C | +0.3 °C | 351 mm | +103 mm |
| May | 28.2 °C | +1.1 °C | 243 mm | +11 mm |
| Jun | 28.4 °C | +1.2 °C | 97 mm | -67 mm |
| Jul | 28.7 °C | +1.8 °C | 103 mm | -74 mm |
| Aug | 27.8 °C | +1.0 °C | 188 mm | -33 mm |
| Sep | 27.5 °C | +1.3 °C | 291 mm | +4 mm |
| Oct | 26.7 °C | +0.9 °C | 254 mm | -78 mm |
| Nov | 25.5 °C | +0.1 °C | 604 mm | +266 mm |
| Dec | 24.9 °C | -0.1 °C | 361 mm | +56 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 Berastagi?
Berastagi has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 21.2 °C and it receives 2,932 mm of precipitation per year.
What is the hottest day ever recorded in Berastagi?
The hottest day measured in Berastagi between 1940 and 2025 was 12 August 1981, reaching 32.5 °C.
What is the coldest day in Berastagi?
The coldest day measured in Berastagi between 1940 and 2025 was 14 January 1965, at 12.7 °C.
Does it snow in Berastagi?
Almost never: Berastagi sees virtually no snow, with about 0 frost days per year.
Has the climate of Berastagi warmed?
Yes: Berastagi warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Berastagi?
The wettest day measured in Berastagi between 1940 and 2025 was 27 November 2025, with 214 mm of rain in 24 hours.
What was the windiest day in Berastagi?
The windiest day measured in Berastagi between 1940 and 2025 was 20 July 2025, with winds reaching 20.7 km/h.
What is the warmest month in Berastagi?
The warmest month in Berastagi is May (21.9 °C on average); the coldest is January (20.6 °C).
How much does it rain in Berastagi?
Berastagi receives on average 2,932 mm of precipitation per year, spread over about 333 rainy days.
Is it sunny in Berastagi?
Berastagi gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
Are there tropical nights in Berastagi?
Yes: Berastagi has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Berastagi?
In Berastagi, between 1940 and 2025, the highest apparent temperature reached 37.1 °C on 20 May 1998, and the lowest was 11.8 °C on 23 June 1940.
Compare Berastagi with another city
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Nearby cities
The climate around Berastagi