Montero climate — normals and trends
Montero (Bolivia) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 23.8 °C and it receives 1,631 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 December (25.6 °C on average) and the coldest is June (20.4 °C). Rainfall peaks in January.
Montero averages 0 frost days, 142 hot days (≥ 30 °C) and 183 rainy days per year.
Montero has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.2 °C (on 22 October 2023) and the coldest 2.6 °C (on 20 July 1975).
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
MonteroSanta Cruz Department
- coords
- -17.34°, -63.25°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.8°C
Average daily high
28.5°C
Average daily low
20.1°C
Annual rainfall
1,631mm
Sunshine / day
8.9h
Mean relative humidity
78%
Average peak wind
16.8km/h
Seasonal range
5.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
142 d/yr
Rainy days (≥ 1 mm)
183 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.7 °C
Average feels-like low
21.5 °C
Average peak gust
42.1 km/h
Tropical nights (≥ 20 °C)
227 d/yr
Solar radiation
16.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.46 · 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
41.2 °C
22 October 2023
Coldest day
2.6 °C
20 July 1975
Wettest day
312 mm
23 January 1965
Windiest day
37.9 km/h
31 August 1944
Strongest gust
95.8 km/h
12 November 1997
Hottest feels-like
45.0 °C
19 November 1967
Coldest feels-like
-1.5 °C
19 July 1975
Sunniest day
12.8 h
26 January 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 | 31.2 °C | +1.4 °C | 250 mm | -4 mm |
| Feb | 31.7 °C | +2.1 °C | 120 mm | -95 mm |
| Mar | 29.4 °C | -0.2 °C | 220 mm | +56 mm |
| Apr | 27.8 °C | -0.6 °C | 106 mm | +4 mm |
| May | 28.2 °C | +2.1 °C | 95 mm | +7 mm |
| Jun | 24.2 °C | -0.6 °C | 27 mm | -40 mm |
| Jul | 27.5 °C | +2.0 °C | 4 mm | -46 mm |
| Aug | 29.2 °C | +1.2 °C | 38 mm | -18 mm |
| Sep | 34.1 °C | +4.4 °C | 42 mm | -51 mm |
| Oct | 30.5 °C | +0.1 °C | 159 mm | +13 mm |
| Nov | 30.5 °C | +0.2 °C | 148 mm | -21 mm |
| Dec | 30.2 °C | +0.2 °C | 209 mm | -19 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 Montero?
Montero has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.8 °C and it receives 1,631 mm of precipitation per year.
What is the hottest day ever recorded in Montero?
The hottest day measured in Montero between 1940 and 2025 was 22 October 2023, reaching 41.2 °C.
What is the coldest day in Montero?
The coldest day measured in Montero between 1940 and 2025 was 20 July 1975, at 2.6 °C.
Does it snow in Montero?
Almost never: Montero sees virtually no snow, with about 0 frost days per year.
Has the climate of Montero warmed?
Yes: Montero warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Montero?
The wettest day measured in Montero between 1940 and 2025 was 23 January 1965, with 312 mm of rain in 24 hours.
What was the windiest day in Montero?
The windiest day measured in Montero between 1940 and 2025 was 31 August 1944, with winds reaching 37.9 km/h.
What is the warmest month in Montero?
The warmest month in Montero is December (25.6 °C on average); the coldest is June (20.4 °C).
How much does it rain in Montero?
Montero receives on average 1,631 mm of precipitation per year, spread over about 183 rainy days.
Is it sunny in Montero?
Montero gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
Are there tropical nights in Montero?
Yes: Montero has on average 227 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Montero?
In Montero, between 1940 and 2025, the highest apparent temperature reached 45.0 °C on 19 November 1967, and the lowest was -1.5 °C on 19 July 1975.
Compare Montero with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Montero