São Miguel do Araguaia in Summer
In summer (December, January and February), São Miguel do Araguaia sees average daytime highs around 31°C and overnight lows near 23°C, with 824 mm of rain over about 76 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 8% of the time across summer, and the air most often feels oppressive.
Summer is São Miguel do Araguaia's 3rd-best season to visit on our travel score. For the whole year in context, see São Miguel do Araguaia's year-round climate.
- Avg daytime high
- 31°C
- coldest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 824 mm
- 76 wet days
- Avg wind
- 5 km/h
- Travel score
- 2.9
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in São Miguel do Araguaia in Summer
Across summer, daytime highs hold fairly steady around 31°C.
A typical summer day in São Miguel do Araguaia reaches about 31°C and drops to 23°C overnight. The warmest of the three months is February, the coolest January.
How summer really feels in São Miguel do Araguaia
Once humidity and wind are folded in, summer brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
São Miguel do Araguaia weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 31° / 23° | 307 | 26.6 | 12.7 | 2.9 |
| Feb | 31° / 23° | 249 | 23.9 | 12.4 | 2.8 |
| Mar | 31° / 23° | 240 | 25.4 | 12.1 | 2.9 |
| Apr | 32° / 23° | 127 | 16.7 | 11.7 | 3.4 |
| May | 33° / 22° | 21 | 3.8 | 11.4 | 4.3 |
| Jun | 33° / 21° | 2 | 0.3 | 11.2 | 4.6 |
| Jul | 33° / 20° | 0 | 0 | 11.3 | 4.5 |
| Aug | 35° / 22° | 2 | 0.4 | 11.6 | 3.3 |
| Sep | 36° / 24° | 22 | 3.7 | 11.9 | 2.3 |
| Oct | 34° / 24° | 116 | 15.7 | 12.3 | 2.5 |
| Nov | 32° / 23° | 237 | 22.8 | 12.6 | 2.8 |
| Dec | 31° / 23° | 268 | 25.4 | 12.8 | 2.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 8% of the time across summer.
Chance of precipitation in Summer
São Miguel do Araguaia gets around 824 mm of rain over 76 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 42 min in early December to 12 h 18 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.2 kWh/m².
Hazard calendar for São Miguel do Araguaia
In summer, São Miguel do Araguaia overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
São Miguel do Araguaia's monsoon runs November–March, when most of the year's rain falls.
Is summer a good time to visit São Miguel do Araguaia?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in São Miguel do Araguaia.
What to pack for São Miguel do Araguaia in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, São Miguel do Araguaia sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 76 days see rain.
UV index in São Miguel do Araguaia in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in São Miguel do Araguaia peaks around February 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 8 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 15 | 14 | 12 | 10 | 8 | 8 | 10 | 12 | 11 | 13 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 12 | Extreme |
| May | 10 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 12 | Extreme |
Air quality in São Miguel do Araguaia in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in São Miguel do Araguaia is worst in September — around 24 µg/m³ PM2.5 (moderate), about 8.8× the cleanest month (July, 3 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 8 | 8 | 7 | 5 | 3 | 3 | 6 | 24 | 21 | 9 | 8 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 8 | Good |
| Mar | 8 | Good |
| Apr | 7 | Good |
| May | 5 | Good |
| Jun | 3 | Good |
| Jul | 3 | Good |
| Aug | 6 | Good |
| Sep | 24 | Moderate |
| Oct | 21 | Moderate |
| Nov | 9 | Good |
| Dec | 8 | Good |
Where is São Miguel do Araguaia?
São Miguel do Araguaia sits at 13.3°S, 50.2°W, 336 m above sea level, in Brazil. The nearest listed city is Porangatu, 111 km away.
Topography around São Miguel do Araguaia
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Miguel do Araguaia.
Within 3 km, the terrain around São Miguel do Araguaia has only modest variations in elevation — a maximum elevation change of 88 m around an average of 340 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 214 m; within 80 km, significant variations in elevation — a maximum elevation change of 523 m.
The land around São Miguel do Araguaia is covered by grassland (60%) and trees (20%) within 3 km, grassland (70%) and trees (27%) within 16 km, and grassland (59%) and trees (32%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for São Miguel do Araguaia (-13.275°, -50.1628°, elevation 336 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.