Cruzeiro do Sul climate — normals and trends
Cruzeiro do Sul (Brazil) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.1 °C and it receives 2,096 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 (25.7 °C on average) and the coldest is June (24.2 °C). Rainfall peaks in March.
Cruzeiro do Sul averages 0 frost days, 183 hot days (≥ 30 °C) and 258 rainy days per year.
Cruzeiro do Sul has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.2 °C (on 6 October 2023) and the coldest 11.1 °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
Cruzeiro do SulAcre
- coords
- -7.63°, -72.68°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.1°C
Average daily high
29.9°C
Average daily low
22.0°C
Annual rainfall
2,096mm
Sunshine / day
9.1h
Mean relative humidity
87%
Average peak wind
7.9km/h
Seasonal range
1.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
183 d/yr
Rainy days (≥ 1 mm)
258 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.7 °C
Average feels-like low
25.8 °C
Average peak gust
24.2 km/h
Tropical nights (≥ 20 °C)
342 d/yr
Solar radiation
16.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.69 · 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
38.2 °C
6 October 2023
Coldest day
11.1 °C
20 July 1975
Wettest day
115 mm
1 April 2022
Windiest day
22.8 km/h
1 November 2022
Strongest gust
61.6 km/h
26 December 1955
Hottest feels-like
44.3 °C
17 October 2016
Coldest feels-like
9.9 °C
20 July 1975
Sunniest day
12.4 h
29 November 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 | 31.4 °C | +1.4 °C | 178 mm | -60 mm |
| Feb | 29.6 °C | -0.2 °C | 349 mm | +99 mm |
| Mar | 30.0 °C | +0.4 °C | 292 mm | +9 mm |
| Apr | 30.5 °C | +1.1 °C | 321 mm | +95 mm |
| May | 29.7 °C | +0.8 °C | 160 mm | +22 mm |
| Jun | 29.4 °C | +0.7 °C | 84 mm | -2 mm |
| Jul | 30.3 °C | +0.9 °C | 17 mm | -42 mm |
| Aug | 32.2 °C | +1.3 °C | 52 mm | -19 mm |
| Sep | 31.4 °C | +0.2 °C | 200 mm | +89 mm |
| Oct | 30.5 °C | -0.3 °C | 195 mm | +22 mm |
| Nov | 30.0 °C | -0.1 °C | 324 mm | +102 mm |
| Dec | 30.1 °C | +0.2 °C | 280 mm | +44 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 Cruzeiro do Sul?
Cruzeiro do Sul has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.1 °C and it receives 2,096 mm of precipitation per year.
What is the hottest day ever recorded in Cruzeiro do Sul?
The hottest day measured in Cruzeiro do Sul between 1940 and 2025 was 6 October 2023, reaching 38.2 °C.
What is the coldest day in Cruzeiro do Sul?
The coldest day measured in Cruzeiro do Sul between 1940 and 2025 was 20 July 1975, at 11.1 °C.
Does it snow in Cruzeiro do Sul?
Almost never: Cruzeiro do Sul sees virtually no snow, with about 0 frost days per year.
Has the climate of Cruzeiro do Sul warmed?
Yes: Cruzeiro do Sul warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cruzeiro do Sul?
The wettest day measured in Cruzeiro do Sul between 1940 and 2025 was 1 April 2022, with 115 mm of rain in 24 hours.
What was the windiest day in Cruzeiro do Sul?
The windiest day measured in Cruzeiro do Sul between 1940 and 2025 was 1 November 2022, with winds reaching 22.8 km/h.
What is the warmest month in Cruzeiro do Sul?
The warmest month in Cruzeiro do Sul is September (25.7 °C on average); the coldest is June (24.2 °C).
How much does it rain in Cruzeiro do Sul?
Cruzeiro do Sul receives on average 2,096 mm of precipitation per year, spread over about 258 rainy days.
Is it sunny in Cruzeiro do Sul?
Cruzeiro do Sul gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
Are there tropical nights in Cruzeiro do Sul?
Yes: Cruzeiro do Sul has on average 342 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Cruzeiro do Sul?
In Cruzeiro do Sul, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 17 October 2016, and the lowest was 9.9 °C on 20 July 1975.
Compare Cruzeiro do Sul with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cruzeiro do Sul