Passos climate — normals and trends
Passos (Brazil) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 20.8 °C and it receives 1,281 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 January (22.8 °C on average) and the coldest is July (17.2 °C). Rainfall peaks in December.
Passos averages 0 frost days, 40 hot days (≥ 30 °C) and 151 rainy days per year.
Passos has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.2 °C (on 18 October 1963) and the coldest 2.1 °C (on 21 July 1981).
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
PassosMinas Gerais
- coords
- -20.72°, -46.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
20.8°C
Average daily high
26.2°C
Average daily low
16.4°C
Annual rainfall
1,281mm
Sunshine / day
9.9h
Mean relative humidity
75%
Average peak wind
11.8km/h
Seasonal range
5.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
40 d/yr
Rainy days (≥ 1 mm)
151 d/yr
Annual snowfall
0.0 cm
Average feels-like high
28.0 °C
Average feels-like low
17.2 °C
Average peak gust
30.6 km/h
Tropical nights (≥ 20 °C)
30 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.63 · 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
37.2 °C
18 October 1963
Coldest day
2.1 °C
21 July 1981
Wettest day
121 mm
2 January 1997
Windiest day
28.0 km/h
6 June 1967
Strongest gust
71.3 km/h
30 July 1989
Hottest feels-like
40.0 °C
15 November 2023
Coldest feels-like
-1.1 °C
21 July 1981
Sunniest day
13.3 h
16 December 1946
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 | 28.7 °C | +1.3 °C | 178 mm | -49 mm |
| Feb | 29.8 °C | +2.2 °C | 76 mm | -104 mm |
| Mar | 29.4 °C | +2.2 °C | 96 mm | -54 mm |
| Apr | 26.8 °C | +0.8 °C | 95 mm | +35 mm |
| May | 24.8 °C | +0.7 °C | 1 mm | -35 mm |
| Jun | 24.6 °C | +1.3 °C | 10 mm | -8 mm |
| Jul | 24.6 °C | +1.0 °C | 2 mm | -14 mm |
| Aug | 26.8 °C | +0.9 °C | 10 mm | -7 mm |
| Sep | 29.4 °C | +1.7 °C | 14 mm | -39 mm |
| Oct | 28.4 °C | +0.7 °C | 75 mm | -44 mm |
| Nov | 29.0 °C | +1.9 °C | 100 mm | -72 mm |
| Dec | 29.1 °C | +2.1 °C | 155 mm | -78 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 Passos?
Passos has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 20.8 °C and it receives 1,281 mm of precipitation per year.
What is the hottest day ever recorded in Passos?
The hottest day measured in Passos between 1940 and 2025 was 18 October 1963, reaching 37.2 °C.
What is the coldest day in Passos?
The coldest day measured in Passos between 1940 and 2025 was 21 July 1981, at 2.1 °C.
Does it snow in Passos?
Almost never: Passos sees virtually no snow, with about 0 frost days per year.
Has the climate of Passos warmed?
Yes: Passos warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Passos?
The wettest day measured in Passos between 1940 and 2025 was 2 January 1997, with 121 mm of rain in 24 hours.
What was the windiest day in Passos?
The windiest day measured in Passos between 1940 and 2025 was 6 June 1967, with winds reaching 28.0 km/h.
What is the warmest month in Passos?
The warmest month in Passos is January (22.8 °C on average); the coldest is July (17.2 °C).
How much does it rain in Passos?
Passos receives on average 1,281 mm of precipitation per year, spread over about 151 rainy days.
Is it sunny in Passos?
Passos gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Passos?
Yes: Passos has on average 30 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Passos?
In Passos, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 15 November 2023, and the lowest was -1.1 °C on 21 July 1981.
Compare Passos with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Passos