São Geraldo do Araguaia climate — normals and trends
São Geraldo do Araguaia (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.7 °C and it receives 1,661 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 (28.7 °C on average) and the coldest is February (25.3 °C). Rainfall peaks in March.
São Geraldo do Araguaia averages 0 frost days, 250 hot days (≥ 30 °C) and 191 rainy days per year.
No statistically significant temperature trend emerges for São Geraldo do Araguaia between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 39.7 °C (on 3 October 1958) and the coldest 16.1 °C (on 8 August 2020).
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 Geraldo do AraguaiaPará
- coords
- -6.40°, -48.55°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.7°C
Average daily high
31.3°C
Average daily low
22.8°C
Annual rainfall
1,661mm
Sunshine / day
10.2h
Mean relative humidity
75%
Average peak wind
10.1km/h
Seasonal range
3.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
250 d/yr
Rainy days (≥ 1 mm)
191 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.1 °C
Average feels-like low
26.2 °C
Average peak gust
28.2 km/h
Tropical nights (≥ 20 °C)
360 d/yr
Solar radiation
18.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
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
39.7 °C
3 October 1958
Coldest day
16.1 °C
8 August 2020
Wettest day
215 mm
13 January 1957
Windiest day
25.3 km/h
26 August 1949
Strongest gust
53.3 km/h
4 October 2014
Hottest feels-like
44.0 °C
26 April 1998
Coldest feels-like
15.4 °C
1 August 2020
Sunniest day
12.3 h
20 January 2024
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 | 29.6 °C | +0.2 °C | 314 mm | +40 mm |
| Feb | 30.1 °C | +0.8 °C | 290 mm | +14 mm |
| Mar | 30.5 °C | +1.1 °C | 348 mm | +61 mm |
| Apr | 31.3 °C | +1.4 °C | 85 mm | -131 mm |
| May | 32.2 °C | +1.5 °C | 34 mm | -56 mm |
| Jun | 32.9 °C | +1.0 °C | 13 mm | -5 mm |
| Jul | 34.0 °C | +0.9 °C | 9 mm | +2 mm |
| Aug | 34.3 °C | +0.1 °C | 2 mm | -5 mm |
| Sep | 34.7 °C | +0.5 °C | 28 mm | -1 mm |
| Oct | 33.3 °C | +0.4 °C | 41 mm | -46 mm |
| Nov | 31.9 °C | +0.7 °C | 103 mm | -53 mm |
| Dec | 29.6 °C | -0.4 °C | 277 mm | +61 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 Geraldo do Araguaia?
São Geraldo do Araguaia has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.7 °C and it receives 1,661 mm of precipitation per year.
What is the hottest day ever recorded in São Geraldo do Araguaia?
The hottest day measured in São Geraldo do Araguaia between 1940 and 2025 was 3 October 1958, reaching 39.7 °C.
What is the coldest day in São Geraldo do Araguaia?
The coldest day measured in São Geraldo do Araguaia between 1940 and 2025 was 8 August 2020, at 16.1 °C.
Does it snow in São Geraldo do Araguaia?
Almost never: São Geraldo do Araguaia sees virtually no snow, with about 0 frost days per year.
Has the climate of São Geraldo do Araguaia warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in São Geraldo do Araguaia.
What is the wettest day in São Geraldo do Araguaia?
The wettest day measured in São Geraldo do Araguaia between 1940 and 2025 was 13 January 1957, with 215 mm of rain in 24 hours.
What was the windiest day in São Geraldo do Araguaia?
The windiest day measured in São Geraldo do Araguaia between 1940 and 2025 was 26 August 1949, with winds reaching 25.3 km/h.
What is the warmest month in São Geraldo do Araguaia?
The warmest month in São Geraldo do Araguaia is September (28.7 °C on average); the coldest is February (25.3 °C).
How much does it rain in São Geraldo do Araguaia?
São Geraldo do Araguaia receives on average 1,661 mm of precipitation per year, spread over about 191 rainy days.
Is it sunny in São Geraldo do Araguaia?
São Geraldo do Araguaia gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in São Geraldo do Araguaia?
Yes: São Geraldo do Araguaia has on average 360 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Geraldo do Araguaia?
In São Geraldo do Araguaia, between 1940 and 2025, the highest apparent temperature reached 44.0 °C on 26 April 1998, and the lowest was 15.4 °C on 1 August 2020.
Compare São Geraldo 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 Geraldo do Araguaia