Colorado do Oeste climate — normals and trends
Colorado do Oeste (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.4 °C and it receives 1,511 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 (25.8 °C on average) and the coldest is June (23.1 °C). Rainfall peaks in January.
Colorado do Oeste averages 0 frost days, 161 hot days (≥ 30 °C) and 207 rainy days per year.
Colorado do Oeste has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.0 °C (on 16 September 1961) and the coldest 7.5 °C (on 18 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
Colorado do OesteRondônia
- coords
- -13.12°, -60.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.4°C
Average daily high
29.6°C
Average daily low
20.6°C
Annual rainfall
1,511mm
Sunshine / day
9.7h
Mean relative humidity
79%
Average peak wind
10.1km/h
Seasonal range
2.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
161 d/yr
Rainy days (≥ 1 mm)
207 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.0 °C
Average feels-like low
23.2 °C
Average peak gust
27.6 km/h
Tropical nights (≥ 20 °C)
270 d/yr
Solar radiation
18.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.25 · 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
16 September 1961
Coldest day
7.5 °C
18 July 1975
Wettest day
127 mm
4 February 2018
Windiest day
31.8 km/h
21 January 1965
Strongest gust
76.7 km/h
21 January 1965
Hottest feels-like
43.3 °C
23 October 2015
Coldest feels-like
2.6 °C
30 July 1955
Sunniest day
12.5 h
27 January 2024
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 | 28.5 °C | -0.1 °C | 261 mm | +7 mm |
| Feb | 28.9 °C | +0.4 °C | 177 mm | -55 mm |
| Mar | 29.0 °C | +0.3 °C | 224 mm | +16 mm |
| Apr | 29.0 °C | +0.3 °C | 136 mm | +16 mm |
| May | 29.8 °C | +1.5 °C | 51 mm | -4 mm |
| Jun | 29.3 °C | +0.2 °C | 54 mm | +38 mm |
| Jul | 29.8 °C | -0.4 °C | 0 mm | -11 mm |
| Aug | 31.9 °C | -0.1 °C | 7 mm | -15 mm |
| Sep | 33.0 °C | +1.1 °C | 71 mm | +5 mm |
| Oct | 30.7 °C | -0.2 °C | 134 mm | +2 mm |
| Nov | 30.3 °C | +0.7 °C | 213 mm | +38 mm |
| Dec | 28.3 °C | -0.5 °C | 371 mm | +150 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 Colorado do Oeste?
Colorado do Oeste has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 1,511 mm of precipitation per year.
What is the hottest day ever recorded in Colorado do Oeste?
The hottest day measured in Colorado do Oeste between 1940 and 2025 was 16 September 1961, reaching 41.0 °C.
What is the coldest day in Colorado do Oeste?
The coldest day measured in Colorado do Oeste between 1940 and 2025 was 18 July 1975, at 7.5 °C.
Does it snow in Colorado do Oeste?
Almost never: Colorado do Oeste sees virtually no snow, with about 0 frost days per year.
Has the climate of Colorado do Oeste warmed?
Yes: Colorado do Oeste warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Colorado do Oeste?
The wettest day measured in Colorado do Oeste between 1940 and 2025 was 4 February 2018, with 127 mm of rain in 24 hours.
What was the windiest day in Colorado do Oeste?
The windiest day measured in Colorado do Oeste between 1940 and 2025 was 21 January 1965, with winds reaching 31.8 km/h.
What is the warmest month in Colorado do Oeste?
The warmest month in Colorado do Oeste is September (25.8 °C on average); the coldest is June (23.1 °C).
How much does it rain in Colorado do Oeste?
Colorado do Oeste receives on average 1,511 mm of precipitation per year, spread over about 207 rainy days.
Is it sunny in Colorado do Oeste?
Colorado do Oeste gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
Are there tropical nights in Colorado do Oeste?
Yes: Colorado do Oeste has on average 270 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Colorado do Oeste?
In Colorado do Oeste, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 23 October 2015, and the lowest was 2.6 °C on 30 July 1955.
Compare Colorado do Oeste with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Colorado do Oeste