Monte Sião climate — normals and trends
Monte Sião (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.8 °C and it receives 1,313 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 (22.0 °C on average) and the coldest is July (16.3 °C). Rainfall peaks in January.
Monte Sião averages 0 frost days, 22 hot days (≥ 30 °C) and 155 rainy days per year.
Monte Sião has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.1 °C (on 2 October 2020) and the coldest -0.2 °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
Monte SiãoMinas Gerais
- coords
- -22.43°, -46.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.8°C
Average daily high
25.0°C
Average daily low
15.6°C
Annual rainfall
1,313mm
Sunshine / day
9.9h
Mean relative humidity
73%
Average peak wind
12.7km/h
Seasonal range
5.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
22 d/yr
Rainy days (≥ 1 mm)
155 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.3 °C
Average feels-like low
15.5 °C
Average peak gust
32.1 km/h
Tropical nights (≥ 20 °C)
12 d/yr
Solar radiation
17.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.68 · 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
36.1 °C
2 October 2020
Coldest day
-0.2 °C
21 July 1981
Wettest day
117 mm
23 January 1992
Windiest day
33.9 km/h
11 October 1972
Strongest gust
86.0 km/h
28 November 1950
Hottest feels-like
38.7 °C
20 January 2015
Coldest feels-like
-3.9 °C
21 July 1981
Sunniest day
13.4 h
16 December 1942
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 | 27.9 °C | +1.3 °C | 143 mm | -77 mm |
| Feb | 29.3 °C | +2.5 °C | 114 mm | -65 mm |
| Mar | 28.8 °C | +2.5 °C | 52 mm | -82 mm |
| Apr | 25.5 °C | +0.5 °C | 93 mm | +24 mm |
| May | 24.4 °C | +1.6 °C | 7 mm | -50 mm |
| Jun | 22.6 °C | +0.6 °C | 43 mm | +4 mm |
| Jul | 22.7 °C | +0.5 °C | 5 mm | -27 mm |
| Aug | 25.5 °C | +1.2 °C | 4 mm | -27 mm |
| Sep | 28.0 °C | +2.0 °C | 33 mm | -35 mm |
| Oct | 26.3 °C | +0.3 °C | 114 mm | -11 mm |
| Nov | 26.5 °C | +0.5 °C | 144 mm | -4 mm |
| Dec | 28.2 °C | +2.1 °C | 160 mm | -52 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 Monte Sião?
Monte Sião has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.8 °C and it receives 1,313 mm of precipitation per year.
What is the hottest day ever recorded in Monte Sião?
The hottest day measured in Monte Sião between 1940 and 2025 was 2 October 2020, reaching 36.1 °C.
What is the coldest day in Monte Sião?
The coldest day measured in Monte Sião between 1940 and 2025 was 21 July 1981, at -0.2 °C.
Does it snow in Monte Sião?
Almost never: Monte Sião sees virtually no snow, with about 0 frost days per year.
Has the climate of Monte Sião warmed?
Yes: Monte Sião warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Monte Sião?
The wettest day measured in Monte Sião between 1940 and 2025 was 23 January 1992, with 117 mm of rain in 24 hours.
What was the windiest day in Monte Sião?
The windiest day measured in Monte Sião between 1940 and 2025 was 11 October 1972, with winds reaching 33.9 km/h.
What is the warmest month in Monte Sião?
The warmest month in Monte Sião is January (22.0 °C on average); the coldest is July (16.3 °C).
How much does it rain in Monte Sião?
Monte Sião receives on average 1,313 mm of precipitation per year, spread over about 155 rainy days.
Is it sunny in Monte Sião?
Monte Sião gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Monte Sião?
Yes: Monte Sião has on average 12 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Monte Sião?
In Monte Sião, between 1940 and 2025, the highest apparent temperature reached 38.7 °C on 20 January 2015, and the lowest was -3.9 °C on 21 July 1981.
Compare Monte Sião with another city
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Nearby cities
The climate around Monte Sião