Labuhan Deli climate — normals and trends
Labuhan Deli (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.7 °C and it receives 2,484 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 June (27.5 °C on average) and the coldest is December (25.9 °C). Rainfall peaks in November.
Labuhan Deli averages 0 frost days, 10 hot days (≥ 30 °C) and 306 rainy days per year.
Labuhan Deli has warmed by +1.2 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.9 °C (on 18 May 1998) and the coldest 22.7 °C (on 16 January 1963).
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
Labuhan DeliNorth Sumatra
- coords
- 3.88°, 98.63°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.7°C
Average daily high
28.2°C
Average daily low
25.3°C
Annual rainfall
2,484mm
Sunshine / day
10.1h
Mean relative humidity
84%
Average peak wind
14.8km/h
Seasonal range
1.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
306 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.1 °C
Average feels-like low
29.7 °C
Average peak gust
24.0 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
19.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.2 °C per decade · r² = 0.75 · 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
31.9 °C
18 May 1998
Coldest day
22.7 °C
16 January 1963
Wettest day
182 mm
26 November 2025
Windiest day
42.9 km/h
25 November 2025
Strongest gust
63.4 km/h
25 November 2025
Hottest feels-like
39.4 °C
24 July 2024
Coldest feels-like
24.4 °C
18 January 1948
Sunniest day
12.2 h
30 June 1972
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 | 27.9 °C | +0.5 °C | 301 mm | +135 mm |
| Feb | 28.3 °C | +0.4 °C | 117 mm | +12 mm |
| Mar | 28.9 °C | +0.6 °C | 211 mm | +72 mm |
| Apr | 28.8 °C | +0.1 °C | 339 mm | +168 mm |
| May | 29.6 °C | +0.6 °C | 245 mm | +50 mm |
| Jun | 29.7 °C | +0.6 °C | 138 mm | -7 mm |
| Jul | 30.0 °C | +1.2 °C | 74 mm | -88 mm |
| Aug | 29.2 °C | +0.7 °C | 173 mm | -25 mm |
| Sep | 29.0 °C | +0.8 °C | 228 mm | -16 mm |
| Oct | 28.6 °C | +0.7 °C | 255 mm | -49 mm |
| Nov | 27.7 °C | +0.1 °C | 803 mm | +451 mm |
| Dec | 27.7 °C | +0.4 °C | 313 mm | +9 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 Labuhan Deli?
Labuhan Deli has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.7 °C and it receives 2,484 mm of precipitation per year.
What is the hottest day ever recorded in Labuhan Deli?
The hottest day measured in Labuhan Deli between 1940 and 2025 was 18 May 1998, reaching 31.9 °C.
What is the coldest day in Labuhan Deli?
The coldest day measured in Labuhan Deli between 1940 and 2025 was 16 January 1963, at 22.7 °C.
Does it snow in Labuhan Deli?
Almost never: Labuhan Deli sees virtually no snow, with about 0 frost days per year.
Has the climate of Labuhan Deli warmed?
Yes: Labuhan Deli warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Labuhan Deli?
The wettest day measured in Labuhan Deli between 1940 and 2025 was 26 November 2025, with 182 mm of rain in 24 hours.
What was the windiest day in Labuhan Deli?
The windiest day measured in Labuhan Deli between 1940 and 2025 was 25 November 2025, with winds reaching 42.9 km/h.
What is the warmest month in Labuhan Deli?
The warmest month in Labuhan Deli is June (27.5 °C on average); the coldest is December (25.9 °C).
How much does it rain in Labuhan Deli?
Labuhan Deli receives on average 2,484 mm of precipitation per year, spread over about 306 rainy days.
Is it sunny in Labuhan Deli?
Labuhan Deli gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in Labuhan Deli?
Yes: Labuhan Deli has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Labuhan Deli?
In Labuhan Deli, between 1940 and 2025, the highest apparent temperature reached 39.4 °C on 24 July 2024, and the lowest was 24.4 °C on 18 January 1948.
Compare Labuhan Deli with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Labuhan Deli