Potosí climate — normals and trends
Potosí (Bolivia) has a tundra climate (ET) under the Köppen-Geiger classification. Its mean annual temperature is 8.0 °C and it receives 858 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 (9.9 °C on average) and the coldest is June (5.2 °C). Rainfall peaks in January.
Potosí averages 118 frost days, 0 hot days (≥ 30 °C) and 152 rainy days per year.
Potosí has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 148 to 88 per year over the period.
The hottest day of the period reached 26.2 °C (on 18 November 2023) and the coldest -20.7 °C (on 9 August 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
PotosíPotosí Department
- coords
- -19.58°, -65.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.0°C
Average daily high
15.0°C
Average daily low
1.8°C
Annual rainfall
858mm
Sunshine / day
10.8h
Mean relative humidity
57%
Average peak wind
12.5km/h
Seasonal range
4.7°C
Frost days (< 0 °C)
118 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
152 d/yr
Annual snowfall
11.1 cm
Average feels-like high
13.1 °C
Average feels-like low
-1.3 °C
Average peak gust
37.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
22.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °C
since 1940
+0.4 °C per decade · r² = 0.80 · 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
26.2 °C
18 November 2023
Coldest day
-20.7 °C
9 August 1942
Wettest day
45 mm
23 November 1958
Windiest day
34.1 km/h
18 June 1991
Strongest gust
103.3 km/h
18 June 1991
Hottest feels-like
24.1 °C
3 February 1998
Coldest feels-like
-26.2 °C
9 August 1942
Snowiest day
13.4 cm
18 August 1960
Sunniest day
13.0 h
6 January 1940
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 | 14.3 °C | +0.2 °C | 203 mm | +14 mm |
| Feb | 15.7 °C | +1.7 °C | 98 mm | -61 mm |
| Mar | 14.7 °C | +0.5 °C | 188 mm | +65 mm |
| Apr | 15.2 °C | +0.3 °C | 90 mm | +46 mm |
| May | 16.3 °C | +1.2 °C | 10 mm | +3 mm |
| Jun | 15.2 °C | +1.0 °C | 1 mm | -2 mm |
| Jul | 16.1 °C | +2.0 °C | 5 mm | +1 mm |
| Aug | 16.1 °C | +0.9 °C | 6 mm | -4 mm |
| Sep | 16.7 °C | +0.4 °C | 40 mm | +15 mm |
| Oct | 16.9 °C | 0.0 °C | 80 mm | +28 mm |
| Nov | 17.3 °C | +1.1 °C | 66 mm | -25 mm |
| Dec | 16.5 °C | +1.5 °C | 135 mm | -17 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 Potosí?
Potosí has a tundra climate (Köppen ET). Over 1940-2025, the average annual temperature is 8.0 °C and it receives 858 mm of precipitation per year.
What is the hottest day ever recorded in Potosí?
The hottest day measured in Potosí between 1940 and 2025 was 18 November 2023, reaching 26.2 °C.
What is the coldest day in Potosí?
The coldest day measured in Potosí between 1940 and 2025 was 9 August 1942, at -20.7 °C.
Does it snow in Potosí?
Yes. Potosí gets on average 11.1 cm of snow per year and has around 118 frost days.
Has the climate of Potosí warmed?
Yes: Potosí warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Potosí?
The wettest day measured in Potosí between 1940 and 2025 was 23 November 1958, with 45 mm of rain in 24 hours.
What was the windiest day in Potosí?
The windiest day measured in Potosí between 1940 and 2025 was 18 June 1991, with winds reaching 34.1 km/h.
What is the warmest month in Potosí?
The warmest month in Potosí is November (9.9 °C on average); the coldest is June (5.2 °C).
How much does it rain in Potosí?
Potosí receives on average 858 mm of precipitation per year, spread over about 152 rainy days.
Is it sunny in Potosí?
Potosí gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Potosí?
The heaviest 24-hour snowfall measured in Potosí between 1940 and 2025 was 18 August 1960, with 13.4 cm.
Are there tropical nights in Potosí?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Potosí.
What was the most extreme apparent temperature in Potosí?
In Potosí, between 1940 and 2025, the highest apparent temperature reached 24.1 °C on 3 February 1998, and the lowest was -26.2 °C on 9 August 1942.
Compare Potosí with another city
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Nearby cities
The climate around Potosí