Atambua climate — normals and trends
Atambua (Indonesia) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.0 °C and it receives 1,385 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 November (26.3 °C on average) and the coldest is July (23.8 °C). Rainfall peaks in February.
Atambua averages 0 frost days, 13 hot days (≥ 30 °C) and 157 rainy days per year.
Atambua has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.4 °C (on 16 November 2020) and the coldest 17.1 °C (on 22 July 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
AtambuaEast Nusa Tenggara
- coords
- -9.11°, 124.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.0°C
Average daily high
27.8°C
Average daily low
22.8°C
Annual rainfall
1,385mm
Sunshine / day
10.7h
Mean relative humidity
80%
Average peak wind
8.2km/h
Seasonal range
2.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
13 d/yr
Rainy days (≥ 1 mm)
157 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.0 °C
Average feels-like low
26.3 °C
Average peak gust
29.4 km/h
Tropical nights (≥ 20 °C)
353 d/yr
Solar radiation
20.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °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
32.4 °C
16 November 2020
Coldest day
17.1 °C
22 July 1965
Wettest day
189 mm
15 February 1952
Windiest day
32.2 km/h
24 January 1993
Strongest gust
87.5 km/h
24 January 1993
Hottest feels-like
38.4 °C
29 December 2023
Coldest feels-like
17.1 °C
2 September 1946
Sunniest day
12.5 h
29 December 2023
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 | 28.0 °C | +0.7 °C | 363 mm | +60 mm |
| Feb | 27.9 °C | +0.9 °C | 352 mm | +39 mm |
| Mar | 28.3 °C | +0.9 °C | 191 mm | -33 mm |
| Apr | 28.2 °C | +0.4 °C | 103 mm | +11 mm |
| May | 28.2 °C | +0.4 °C | 63 mm | +10 mm |
| Jun | 27.9 °C | +0.7 °C | 17 mm | -16 mm |
| Jul | 28.0 °C | +1.2 °C | 15 mm | -6 mm |
| Aug | 28.3 °C | +1.1 °C | 3 mm | -8 mm |
| Sep | 29.3 °C | +1.1 °C | 13 mm | +1 mm |
| Oct | 30.0 °C | +0.9 °C | 19 mm | -3 mm |
| Nov | 29.8 °C | +0.6 °C | 103 mm | +27 mm |
| Dec | 28.5 °C | +0.4 °C | 331 mm | +106 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 Atambua?
Atambua has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 1,385 mm of precipitation per year.
What is the hottest day ever recorded in Atambua?
The hottest day measured in Atambua between 1940 and 2025 was 16 November 2020, reaching 32.4 °C.
What is the coldest day in Atambua?
The coldest day measured in Atambua between 1940 and 2025 was 22 July 1965, at 17.1 °C.
Does it snow in Atambua?
Almost never: Atambua sees virtually no snow, with about 0 frost days per year.
Has the climate of Atambua warmed?
Yes: Atambua warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Atambua?
The wettest day measured in Atambua between 1940 and 2025 was 15 February 1952, with 189 mm of rain in 24 hours.
What was the windiest day in Atambua?
The windiest day measured in Atambua between 1940 and 2025 was 24 January 1993, with winds reaching 32.2 km/h.
What is the warmest month in Atambua?
The warmest month in Atambua is November (26.3 °C on average); the coldest is July (23.8 °C).
How much does it rain in Atambua?
Atambua receives on average 1,385 mm of precipitation per year, spread over about 157 rainy days.
Is it sunny in Atambua?
Atambua gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
Are there tropical nights in Atambua?
Yes: Atambua has on average 353 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Atambua?
In Atambua, between 1940 and 2025, the highest apparent temperature reached 38.4 °C on 29 December 2023, and the lowest was 17.1 °C on 2 September 1946.
Compare Atambua with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Atambua