Chapadão do Sul climate — normals and trends
Chapadão do Sul (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.6 °C and it receives 1,738 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 (24.1 °C on average) and the coldest is June (20.0 °C). Rainfall peaks in January.
Chapadão do Sul averages 0 frost days, 94 hot days (≥ 30 °C) and 182 rainy days per year.
Chapadão do Sul has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.5 °C (on 18 October 1963) and the coldest 0.4 °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
Chapadão do SulMato Grosso do Sul
- coords
- -18.79°, -52.62°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.6°C
Average daily high
28.2°C
Average daily low
18.5°C
Annual rainfall
1,738mm
Sunshine / day
10.1h
Mean relative humidity
71%
Average peak wind
12.5km/h
Seasonal range
4.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
94 d/yr
Rainy days (≥ 1 mm)
182 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.6 °C
Average feels-like low
19.3 °C
Average peak gust
30.3 km/h
Tropical nights (≥ 20 °C)
120 d/yr
Solar radiation
18.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.51 · 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
39.5 °C
18 October 1963
Coldest day
0.4 °C
18 July 1975
Wettest day
148 mm
16 December 1945
Windiest day
34.2 km/h
15 September 1956
Strongest gust
78.5 km/h
8 September 2015
Hottest feels-like
41.2 °C
4 January 1998
Coldest feels-like
-4.2 °C
18 July 1975
Sunniest day
13.0 h
17 December 1940
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 | 29.4 °C | +1.2 °C | 196 mm | -85 mm |
| Feb | 29.2 °C | +0.8 °C | 157 mm | -93 mm |
| Mar | 29.9 °C | +1.4 °C | 91 mm | -139 mm |
| Apr | 28.0 °C | +0.1 °C | 138 mm | +28 mm |
| May | 27.1 °C | +0.8 °C | 19 mm | -34 mm |
| Jun | 26.4 °C | +0.4 °C | 16 mm | -5 mm |
| Jul | 26.4 °C | -0.2 °C | 0 mm | -16 mm |
| Aug | 28.9 °C | -0.1 °C | 5 mm | -19 mm |
| Sep | 32.9 °C | +2.4 °C | 9 mm | -64 mm |
| Oct | 30.3 °C | +0.6 °C | 97 mm | -81 mm |
| Nov | 30.6 °C | +1.8 °C | 122 mm | -106 mm |
| Dec | 28.9 °C | +0.7 °C | 172 mm | -104 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 Chapadão do Sul?
Chapadão do Sul has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.6 °C and it receives 1,738 mm of precipitation per year.
What is the hottest day ever recorded in Chapadão do Sul?
The hottest day measured in Chapadão do Sul between 1940 and 2025 was 18 October 1963, reaching 39.5 °C.
What is the coldest day in Chapadão do Sul?
The coldest day measured in Chapadão do Sul between 1940 and 2025 was 18 July 1975, at 0.4 °C.
Does it snow in Chapadão do Sul?
Almost never: Chapadão do Sul sees virtually no snow, with about 0 frost days per year.
Has the climate of Chapadão do Sul warmed?
Yes: Chapadão do Sul warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chapadão do Sul?
The wettest day measured in Chapadão do Sul between 1940 and 2025 was 16 December 1945, with 148 mm of rain in 24 hours.
What was the windiest day in Chapadão do Sul?
The windiest day measured in Chapadão do Sul between 1940 and 2025 was 15 September 1956, with winds reaching 34.2 km/h.
What is the warmest month in Chapadão do Sul?
The warmest month in Chapadão do Sul is September (24.1 °C on average); the coldest is June (20.0 °C).
How much does it rain in Chapadão do Sul?
Chapadão do Sul receives on average 1,738 mm of precipitation per year, spread over about 182 rainy days.
Is it sunny in Chapadão do Sul?
Chapadão do Sul gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in Chapadão do Sul?
Yes: Chapadão do Sul has on average 120 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Chapadão do Sul?
In Chapadão do Sul, between 1940 and 2025, the highest apparent temperature reached 41.2 °C on 4 January 1998, and the lowest was -4.2 °C on 18 July 1975.
Compare Chapadão do Sul with another city
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Nearby cities
The climate around Chapadão do Sul