Kisaran climate — normals and trends
Kisaran (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.4 °C and it receives 2,577 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 (27.1 °C on average) and the coldest is December (25.7 °C). Rainfall peaks in October.
Kisaran averages 0 frost days, 296 hot days (≥ 30 °C) and 307 rainy days per year.
Kisaran 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 37.1 °C (on 13 August 1981) and the coldest 18.2 °C (on 9 February 1944).
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
KisaranNorth Sumatra
- coords
- 2.98°, 99.62°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.4°C
Average daily high
31.4°C
Average daily low
23.1°C
Annual rainfall
2,577mm
Sunshine / day
9.9h
Mean relative humidity
87%
Average peak wind
8.2km/h
Seasonal range
1.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
296 d/yr
Rainy days (≥ 1 mm)
307 d/yr
Annual snowfall
0.0 cm
Average feels-like high
38.3 °C
Average feels-like low
27.7 °C
Average peak gust
22.9 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.87 · 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
37.1 °C
13 August 1981
Coldest day
18.2 °C
9 February 1944
Wettest day
155 mm
19 September 2000
Windiest day
24.4 km/h
18 December 2021
Strongest gust
44.3 km/h
30 January 1953
Hottest feels-like
45.0 °C
22 April 2024
Coldest feels-like
18.9 °C
19 February 1977
Sunniest day
12.2 h
3 July 1949
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 | 30.7 °C | +0.2 °C | 294 mm | +117 mm |
| Feb | 31.7 °C | +0.5 °C | 225 mm | +79 mm |
| Mar | 32.3 °C | +0.5 °C | 258 mm | +73 mm |
| Apr | 32.0 °C | 0.0 °C | 319 mm | +102 mm |
| May | 33.0 °C | +0.9 °C | 218 mm | +0 mm |
| Jun | 32.5 °C | +0.4 °C | 120 mm | -24 mm |
| Jul | 33.3 °C | +1.4 °C | 70 mm | -85 mm |
| Aug | 33.0 °C | +1.2 °C | 122 mm | -78 mm |
| Sep | 32.3 °C | +1.0 °C | 143 mm | -134 mm |
| Oct | 31.7 °C | +0.8 °C | 274 mm | -36 mm |
| Nov | 30.2 °C | -0.3 °C | 384 mm | +92 mm |
| Dec | 30.3 °C | 0.0 °C | 245 mm | -15 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 Kisaran?
Kisaran has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.4 °C and it receives 2,577 mm of precipitation per year.
What is the hottest day ever recorded in Kisaran?
The hottest day measured in Kisaran between 1940 and 2025 was 13 August 1981, reaching 37.1 °C.
What is the coldest day in Kisaran?
The coldest day measured in Kisaran between 1940 and 2025 was 9 February 1944, at 18.2 °C.
Does it snow in Kisaran?
Almost never: Kisaran sees virtually no snow, with about 0 frost days per year.
Has the climate of Kisaran warmed?
Yes: Kisaran warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kisaran?
The wettest day measured in Kisaran between 1940 and 2025 was 19 September 2000, with 155 mm of rain in 24 hours.
What was the windiest day in Kisaran?
The windiest day measured in Kisaran between 1940 and 2025 was 18 December 2021, with winds reaching 24.4 km/h.
What is the warmest month in Kisaran?
The warmest month in Kisaran is May (27.1 °C on average); the coldest is December (25.7 °C).
How much does it rain in Kisaran?
Kisaran receives on average 2,577 mm of precipitation per year, spread over about 307 rainy days.
Is it sunny in Kisaran?
Kisaran gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Kisaran?
Yes: Kisaran has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kisaran?
In Kisaran, between 1940 and 2025, the highest apparent temperature reached 45.0 °C on 22 April 2024, and the lowest was 18.9 °C on 19 February 1977.
Compare Kisaran with another city
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Nearby cities
The climate around Kisaran