Caldera climate — normals and trends
Caldera (Chile) has a cold desert climate (BWk) under the Köppen-Geiger classification. Its mean annual temperature is 15.4 °C and it receives 18 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 February (18.4 °C on average) and the coldest is July (13.0 °C). Rainfall peaks in June.
Caldera averages 0 frost days, 0 hot days (≥ 30 °C) and 3 rainy days per year.
The mean temperature of Caldera has changed by -0.4 °C between 1940 and 2025, or -0.05 °C per decade. This trend is statistically significant.
The hottest day of the period reached 26.5 °C (on 29 March 1941) and the coldest 5.8 °C (on 4 August 1966).
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
CalderaAtacama
- coords
- -27.07°, -70.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.4°C
Average daily high
18.3°C
Average daily low
13.1°C
Annual rainfall
18mm
Sunshine / day
11.7h
Mean relative humidity
78%
Average peak wind
17.0km/h
Seasonal range
5.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
3 d/yr
Annual snowfall
0.0 cm
Average feels-like high
18.2 °C
Average feels-like low
12.5 °C
Average peak gust
29.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
23.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
-0.4 °C
since 1940
-0.1 °C per decade · r² = 0.09 · p = 0.005
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
26.5 °C
29 March 1941
Coldest day
5.8 °C
4 August 1966
Wettest day
42 mm
12 June 1997
Windiest day
41.8 km/h
26 June 1941
Strongest gust
76.3 km/h
14 June 1942
Hottest feels-like
28.9 °C
27 January 2017
Coldest feels-like
2.7 °C
10 July 2007
Sunniest day
13.6 h
29 December 2025
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 | 21.2 °C | +0.2 °C | 0 mm | +0 mm |
| Feb | 21.7 °C | +0.4 °C | 0 mm | -0 mm |
| Mar | 20.2 °C | -0.2 °C | 0 mm | -1 mm |
| Apr | 18.1 °C | -0.7 °C | 0 mm | -1 mm |
| May | 16.7 °C | -0.8 °C | 0 mm | -3 mm |
| Jun | 16.1 °C | -0.3 °C | 3 mm | -2 mm |
| Jul | 15.4 °C | -0.5 °C | 1 mm | -3 mm |
| Aug | 16.0 °C | -0.1 °C | 11 mm | +8 mm |
| Sep | 17.1 °C | +0.5 °C | 1 mm | -0 mm |
| Oct | 17.8 °C | +0.5 °C | 0 mm | -0 mm |
| Nov | 18.8 °C | +0.5 °C | 0 mm | -0 mm |
| Dec | 20.6 °C | +0.8 °C | 0 mm | 0 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 Caldera?
Caldera has a cold desert climate (Köppen BWk). Over 1940-2025, the average annual temperature is 15.4 °C and it receives 18 mm of precipitation per year.
What is the hottest day ever recorded in Caldera?
The hottest day measured in Caldera between 1940 and 2025 was 29 March 1941, reaching 26.5 °C.
What is the coldest day in Caldera?
The coldest day measured in Caldera between 1940 and 2025 was 4 August 1966, at 5.8 °C.
Does it snow in Caldera?
Almost never: Caldera sees virtually no snow, with about 0 frost days per year.
Has the climate of Caldera warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Caldera.
What is the wettest day in Caldera?
The wettest day measured in Caldera between 1940 and 2025 was 12 June 1997, with 42 mm of rain in 24 hours.
What was the windiest day in Caldera?
The windiest day measured in Caldera between 1940 and 2025 was 26 June 1941, with winds reaching 41.8 km/h.
What is the warmest month in Caldera?
The warmest month in Caldera is February (18.4 °C on average); the coldest is July (13.0 °C).
How much does it rain in Caldera?
Caldera receives on average 18 mm of precipitation per year, spread over about 3 rainy days.
Is it sunny in Caldera?
Caldera gets on average 11.7 hours of sunshine per day, roughly 4,271 hours per year over 1940-2025.
Are there tropical nights in Caldera?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Caldera.
What was the most extreme apparent temperature in Caldera?
In Caldera, between 1940 and 2025, the highest apparent temperature reached 28.9 °C on 27 January 2017, and the lowest was 2.7 °C on 10 July 2007.
Compare Caldera with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Caldera