São Miguel do Araguaia climate — normals and trends
São Miguel do Araguaia (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 1,665 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 (29.5 °C on average) and the coldest is June (25.6 °C). Rainfall peaks in January.
São Miguel do Araguaia averages 0 frost days, 269 hot days (≥ 30 °C) and 171 rainy days per year.
São Miguel do Araguaia has warmed by +0.6 °C between 1940 and 2025, or +0.07 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.8 °C (on 14 October 1963) and the coldest 10.9 °C (on 20 May 2022).
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
São Miguel do AraguaiaGoiás
- coords
- -13.28°, -50.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.6°C
Average daily high
31.9°C
Average daily low
22.2°C
Annual rainfall
1,665mm
Sunshine / day
10.1h
Mean relative humidity
68%
Average peak wind
10.6km/h
Seasonal range
3.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
269 d/yr
Rainy days (≥ 1 mm)
171 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.8 °C
Average feels-like low
24.5 °C
Average peak gust
26.6 km/h
Tropical nights (≥ 20 °C)
326 d/yr
Solar radiation
19.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.09 · p = 0.006
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
42.8 °C
14 October 1963
Coldest day
10.9 °C
20 May 2022
Wettest day
194 mm
21 January 1959
Windiest day
27.4 km/h
7 February 1965
Strongest gust
63.0 km/h
7 February 1965
Hottest feels-like
45.4 °C
16 October 1963
Coldest feels-like
8.9 °C
19 May 2022
Sunniest day
12.8 h
30 December 1940
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 | 30.0 °C | +0.1 °C | 412 mm | +108 mm |
| Feb | 31.5 °C | +1.5 °C | 209 mm | -52 mm |
| Mar | 32.0 °C | +2.0 °C | 104 mm | -148 mm |
| Apr | 32.0 °C | +1.3 °C | 138 mm | +3 mm |
| May | 32.7 °C | +1.0 °C | 14 mm | -14 mm |
| Jun | 33.1 °C | +0.9 °C | 0 mm | -3 mm |
| Jul | 33.4 °C | +0.7 °C | 0 mm | -1 mm |
| Aug | 35.2 °C | +0.4 °C | 0 mm | -3 mm |
| Sep | 36.6 °C | +0.7 °C | 15 mm | -11 mm |
| Oct | 35.5 °C | +1.9 °C | 49 mm | -84 mm |
| Nov | 32.5 °C | +1.5 °C | 127 mm | -110 mm |
| Dec | 30.7 °C | +0.6 °C | 253 mm | -31 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 São Miguel do Araguaia?
São Miguel do Araguaia has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 1,665 mm of precipitation per year.
What is the hottest day ever recorded in São Miguel do Araguaia?
The hottest day measured in São Miguel do Araguaia between 1940 and 2025 was 14 October 1963, reaching 42.8 °C.
What is the coldest day in São Miguel do Araguaia?
The coldest day measured in São Miguel do Araguaia between 1940 and 2025 was 20 May 2022, at 10.9 °C.
Does it snow in São Miguel do Araguaia?
Almost never: São Miguel do Araguaia sees virtually no snow, with about 0 frost days per year.
Has the climate of São Miguel do Araguaia warmed?
Yes: São Miguel do Araguaia warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São Miguel do Araguaia?
The wettest day measured in São Miguel do Araguaia between 1940 and 2025 was 21 January 1959, with 194 mm of rain in 24 hours.
What was the windiest day in São Miguel do Araguaia?
The windiest day measured in São Miguel do Araguaia between 1940 and 2025 was 7 February 1965, with winds reaching 27.4 km/h.
What is the warmest month in São Miguel do Araguaia?
The warmest month in São Miguel do Araguaia is September (29.5 °C on average); the coldest is June (25.6 °C).
How much does it rain in São Miguel do Araguaia?
São Miguel do Araguaia receives on average 1,665 mm of precipitation per year, spread over about 171 rainy days.
Is it sunny in São Miguel do Araguaia?
São Miguel do Araguaia gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in São Miguel do Araguaia?
Yes: São Miguel do Araguaia has on average 326 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Miguel do Araguaia?
In São Miguel do Araguaia, between 1940 and 2025, the highest apparent temperature reached 45.4 °C on 16 October 1963, and the lowest was 8.9 °C on 19 May 2022.
Compare São Miguel do Araguaia with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around São Miguel do Araguaia