Riberalta climate — normals and trends
Riberalta (Bolivia) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.5 °C and it receives 1,820 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 September (26.6 °C on average) and the coldest is June (24.3 °C). Rainfall peaks in January.
Riberalta averages 0 frost days, 194 hot days (≥ 30 °C) and 225 rainy days per year.
Riberalta 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 38.8 °C (on 17 September 1961) and the coldest 8.8 °C (on 19 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
RiberaltaBeni Department
- coords
- -11.01°, -66.05°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.5°C
Average daily high
30.0°C
Average daily low
22.4°C
Annual rainfall
1,820mm
Sunshine / day
9.3h
Mean relative humidity
85%
Average peak wind
9.3km/h
Seasonal range
2.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
194 d/yr
Rainy days (≥ 1 mm)
225 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.7 °C
Average feels-like low
26.1 °C
Average peak gust
26.2 km/h
Tropical nights (≥ 20 °C)
329 d/yr
Solar radiation
17.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.41 · 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
38.8 °C
17 September 1961
Coldest day
8.8 °C
19 July 1975
Wettest day
189 mm
9 February 1965
Windiest day
27.6 km/h
21 July 1986
Strongest gust
63.7 km/h
25 June 1994
Hottest feels-like
44.0 °C
1 October 1947
Coldest feels-like
5.9 °C
19 July 1975
Sunniest day
12.6 h
30 December 2025
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 | 29.8 °C | +0.2 °C | 240 mm | -23 mm |
| Feb | 30.0 °C | +0.6 °C | 209 mm | -47 mm |
| Mar | 30.2 °C | +0.6 °C | 333 mm | +88 mm |
| Apr | 30.0 °C | +0.6 °C | 235 mm | +66 mm |
| May | 30.3 °C | +1.5 °C | 119 mm | +31 mm |
| Jun | 29.1 °C | +0.2 °C | 28 mm | -9 mm |
| Jul | 30.9 °C | +1.1 °C | 8 mm | -16 mm |
| Aug | 32.5 °C | +1.0 °C | 17 mm | -25 mm |
| Sep | 32.9 °C | +1.1 °C | 78 mm | -6 mm |
| Oct | 31.7 °C | +0.4 °C | 133 mm | -21 mm |
| Nov | 31.1 °C | +0.8 °C | 166 mm | -39 mm |
| Dec | 29.5 °C | -0.2 °C | 301 mm | +49 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 Riberalta?
Riberalta has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.5 °C and it receives 1,820 mm of precipitation per year.
What is the hottest day ever recorded in Riberalta?
The hottest day measured in Riberalta between 1940 and 2025 was 17 September 1961, reaching 38.8 °C.
What is the coldest day in Riberalta?
The coldest day measured in Riberalta between 1940 and 2025 was 19 July 1975, at 8.8 °C.
Does it snow in Riberalta?
Almost never: Riberalta sees virtually no snow, with about 0 frost days per year.
Has the climate of Riberalta warmed?
Yes: Riberalta warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Riberalta?
The wettest day measured in Riberalta between 1940 and 2025 was 9 February 1965, with 189 mm of rain in 24 hours.
What was the windiest day in Riberalta?
The windiest day measured in Riberalta between 1940 and 2025 was 21 July 1986, with winds reaching 27.6 km/h.
What is the warmest month in Riberalta?
The warmest month in Riberalta is September (26.6 °C on average); the coldest is June (24.3 °C).
How much does it rain in Riberalta?
Riberalta receives on average 1,820 mm of precipitation per year, spread over about 225 rainy days.
Is it sunny in Riberalta?
Riberalta gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
Are there tropical nights in Riberalta?
Yes: Riberalta has on average 329 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Riberalta?
In Riberalta, between 1940 and 2025, the highest apparent temperature reached 44.0 °C on 1 October 1947, and the lowest was 5.9 °C on 19 July 1975.
Compare Riberalta with another city
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Nearby cities
The climate around Riberalta