Ascención de Guarayos climate — normals and trends
Ascención de Guarayos (Bolivia) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 24.4 °C and it receives 1,729 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 October (25.9 °C on average) and the coldest is June (21.5 °C). Rainfall peaks in January.
Ascención de Guarayos averages 0 frost days, 168 hot days (≥ 30 °C) and 184 rainy days per year.
Ascención de Guarayos 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 41.0 °C (on 17 October 1963) and the coldest 3.1 °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
Ascención de GuarayosSanta Cruz Department
- coords
- -15.89°, -63.19°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.4°C
Average daily high
29.3°C
Average daily low
20.7°C
Annual rainfall
1,729mm
Sunshine / day
9.3h
Mean relative humidity
79%
Average peak wind
13.4km/h
Seasonal range
4.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
168 d/yr
Rainy days (≥ 1 mm)
184 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.3 °C
Average feels-like low
22.8 °C
Average peak gust
36.3 km/h
Tropical nights (≥ 20 °C)
251 d/yr
Solar radiation
17.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.35 · 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
41.0 °C
17 October 1963
Coldest day
3.1 °C
20 July 1975
Wettest day
244 mm
13 December 1989
Windiest day
36.3 km/h
13 October 1982
Strongest gust
94.7 km/h
16 July 1975
Hottest feels-like
44.8 °C
30 October 2009
Coldest feels-like
-0.6 °C
19 July 1975
Sunniest day
12.8 h
10 January 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 | 30.3 °C | +0.6 °C | 247 mm | -45 mm |
| Feb | 31.4 °C | +1.9 °C | 187 mm | -61 mm |
| Mar | 29.6 °C | 0.0 °C | 265 mm | +81 mm |
| Apr | 28.7 °C | -0.2 °C | 146 mm | +42 mm |
| May | 29.2 °C | +2.0 °C | 76 mm | -3 mm |
| Jun | 25.8 °C | -0.7 °C | 20 mm | -33 mm |
| Jul | 28.7 °C | +1.4 °C | 1 mm | -38 mm |
| Aug | 30.5 °C | +0.8 °C | 35 mm | -13 mm |
| Sep | 34.5 °C | +3.4 °C | 27 mm | -61 mm |
| Oct | 31.6 °C | +0.5 °C | 121 mm | -30 mm |
| Nov | 30.7 °C | +0.3 °C | 147 mm | -41 mm |
| Dec | 29.9 °C | -0.1 °C | 290 mm | +35 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 Ascención de Guarayos?
Ascención de Guarayos has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 1,729 mm of precipitation per year.
What is the hottest day ever recorded in Ascención de Guarayos?
The hottest day measured in Ascención de Guarayos between 1940 and 2025 was 17 October 1963, reaching 41.0 °C.
What is the coldest day in Ascención de Guarayos?
The coldest day measured in Ascención de Guarayos between 1940 and 2025 was 20 July 1975, at 3.1 °C.
Does it snow in Ascención de Guarayos?
Almost never: Ascención de Guarayos sees virtually no snow, with about 0 frost days per year.
Has the climate of Ascención de Guarayos warmed?
Yes: Ascención de Guarayos warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ascención de Guarayos?
The wettest day measured in Ascención de Guarayos between 1940 and 2025 was 13 December 1989, with 244 mm of rain in 24 hours.
What was the windiest day in Ascención de Guarayos?
The windiest day measured in Ascención de Guarayos between 1940 and 2025 was 13 October 1982, with winds reaching 36.3 km/h.
What is the warmest month in Ascención de Guarayos?
The warmest month in Ascención de Guarayos is October (25.9 °C on average); the coldest is June (21.5 °C).
How much does it rain in Ascención de Guarayos?
Ascención de Guarayos receives on average 1,729 mm of precipitation per year, spread over about 184 rainy days.
Is it sunny in Ascención de Guarayos?
Ascención de Guarayos gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
Are there tropical nights in Ascención de Guarayos?
Yes: Ascención de Guarayos has on average 251 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ascención de Guarayos?
In Ascención de Guarayos, between 1940 and 2025, the highest apparent temperature reached 44.8 °C on 30 October 2009, and the lowest was -0.6 °C on 19 July 1975.
Compare Ascención de Guarayos with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ascención de Guarayos