Teluk Dalam climate — normals and trends
Teluk Dalam (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.7 °C and it receives 3,005 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 (27.3 °C on average) and the coldest is November (26.1 °C). Rainfall peaks in November.
Teluk Dalam averages 0 frost days, 6 hot days (≥ 30 °C) and 298 rainy days per year.
Teluk Dalam has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.0 °C (on 20 May 1998) and the coldest 23.2 °C (on 16 November 1942).
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
Teluk DalamNorth Sumatra
- coords
- 0.57°, 97.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.7°C
Average daily high
28.0°C
Average daily low
25.5°C
Annual rainfall
3,005mm
Sunshine / day
9.5h
Mean relative humidity
83%
Average peak wind
14.2km/h
Seasonal range
1.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
298 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.8 °C
Average feels-like low
29.7 °C
Average peak gust
23.8 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
18.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °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
32.0 °C
20 May 1998
Coldest day
23.2 °C
16 November 1942
Wettest day
229 mm
16 June 2007
Windiest day
50.0 km/h
20 October 2025
Strongest gust
73.4 km/h
20 October 2025
Hottest feels-like
39.8 °C
22 April 1998
Coldest feels-like
24.0 °C
24 November 1953
Sunniest day
11.9 h
22 June 1940
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 | 28.6 °C | +0.7 °C | 279 mm | +59 mm |
| Feb | 28.9 °C | +0.7 °C | 152 mm | -34 mm |
| Mar | 28.8 °C | +0.6 °C | 401 mm | +166 mm |
| Apr | 29.0 °C | +0.7 °C | 243 mm | -11 mm |
| May | 29.6 °C | +1.0 °C | 153 mm | -44 mm |
| Jun | 29.5 °C | +1.0 °C | 154 mm | +2 mm |
| Jul | 29.0 °C | +0.8 °C | 198 mm | +12 mm |
| Aug | 28.8 °C | +0.9 °C | 240 mm | +1 mm |
| Sep | 28.6 °C | +1.0 °C | 305 mm | +13 mm |
| Oct | 29.0 °C | +1.5 °C | 281 mm | -78 mm |
| Nov | 27.9 °C | +0.5 °C | 487 mm | +110 mm |
| Dec | 28.1 °C | +0.6 °C | 341 mm | +32 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 Teluk Dalam?
Teluk Dalam has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.7 °C and it receives 3,005 mm of precipitation per year.
What is the hottest day ever recorded in Teluk Dalam?
The hottest day measured in Teluk Dalam between 1940 and 2025 was 20 May 1998, reaching 32.0 °C.
What is the coldest day in Teluk Dalam?
The coldest day measured in Teluk Dalam between 1940 and 2025 was 16 November 1942, at 23.2 °C.
Does it snow in Teluk Dalam?
Almost never: Teluk Dalam sees virtually no snow, with about 0 frost days per year.
Has the climate of Teluk Dalam warmed?
Yes: Teluk Dalam warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Teluk Dalam?
The wettest day measured in Teluk Dalam between 1940 and 2025 was 16 June 2007, with 229 mm of rain in 24 hours.
What was the windiest day in Teluk Dalam?
The windiest day measured in Teluk Dalam between 1940 and 2025 was 20 October 2025, with winds reaching 50.0 km/h.
What is the warmest month in Teluk Dalam?
The warmest month in Teluk Dalam is May (27.3 °C on average); the coldest is November (26.1 °C).
How much does it rain in Teluk Dalam?
Teluk Dalam receives on average 3,005 mm of precipitation per year, spread over about 298 rainy days.
Is it sunny in Teluk Dalam?
Teluk Dalam gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
Are there tropical nights in Teluk Dalam?
Yes: Teluk Dalam has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Teluk Dalam?
In Teluk Dalam, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 22 April 1998, and the lowest was 24.0 °C on 24 November 1953.
Compare Teluk Dalam with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Teluk Dalam