Santo Antônio do Sudoeste in Fall
In fall (March, April and May), Santo Antônio do Sudoeste sees average daytime highs around 25°C and overnight lows near 16°C, with 463 mm of rain over about 34 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 29°C in early March to 21°C by late May. The sky is clear or mostly clear about 42% of the time across fall, and the air most often feels humid.
Fall is Santo Antônio do Sudoeste's 2nd-best season to visit on our travel score. For the whole year in context, see Santo Antônio do Sudoeste's year-round climate.
- Avg daytime high
- 25°C
- 3rd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 463 mm
- 34 wet days
- Avg wind
- 9 km/h
- Travel score
- 6.4
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Santo Antônio do Sudoeste in Fall
Over the season highs ease from about 29°C in early March to 21°C by late May.
A typical fall day in Santo Antônio do Sudoeste reaches about 25°C and drops to 16°C overnight. The warmest of the three months is March, the coolest May.
Santo Antônio do Sudoeste weather by month
How the three fall months (March, April and May) 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 | 29° / 20° | 174 | 17.4 | 13.4 | 4.4 |
| Feb | 29° / 20° | 163 | 16.2 | 12.9 | 4.6 |
| Mar | 28° / 19° | 141 | 13.8 | 12.2 | 5.6 |
| Apr | 26° / 17° | 150 | 9.9 | 11.4 | 6.8 |
| May | 22° / 13° | 173 | 9.8 | 10.7 | 6.8 |
| Jun | 21° / 12° | 169 | 10.2 | 10.4 | 6.5 |
| Jul | 21° / 11° | 135 | 8.7 | 10.5 | 6.9 |
| Aug | 23° / 13° | 110 | 7.4 | 11.1 | 7.6 |
| Sep | 25° / 15° | 173 | 11 | 11.8 | 6.9 |
| Oct | 26° / 17° | 226 | 14 | 12.6 | 6.0 |
| Nov | 28° / 18° | 165 | 12.9 | 13.3 | 5.8 |
| Dec | 29° / 19° | 195 | 16.6 | 13.6 | 4.7 |
Cloud cover in Fall
The sky is clear or mostly clear about 42% of the time across fall.
Chance of precipitation in Fall
Santo Antônio do Sudoeste gets around 463 mm of rain over 34 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 36 min in early March to 10 h 30 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.2 kWh/m².
Is fall a good time to visit Santo Antônio do Sudoeste?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Santo Antônio do Sudoeste for sightseeing.
What to pack for Santo Antônio do Sudoeste in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Santo Antônio do Sudoeste sees daytime highs around 25°C and nights near 16°C. Pack light clothes. Worth having: rain gear and sun protection. About 34 days see rain.
UV index in Santo Antônio do Sudoeste in Fall
Clear-sky midday UV across fall averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santo Antônio do Sudoeste peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (moderate).
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) | 15 | 15 | 12 | 9 | 6 | 5 | 5 | 6 | 7 | 10 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 6 | High |
| Jun | 5 | Moderate |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 7 | High |
| Oct | 10 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in Santo Antônio do Sudoeste in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Santo Antônio do Sudoeste is worst in September — around 24 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (March, 6 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) | 7 | 7 | 6 | 7 | 6 | 6 | 10 | 22 | 24 | 12 | 9 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 7 | Good |
| Mar | 6 | Good |
| Apr | 7 | Good |
| May | 6 | Good |
| Jun | 6 | Good |
| Jul | 10 | Good |
| Aug | 22 | Moderate |
| Sep | 24 | Moderate |
| Oct | 12 | Good |
| Nov | 9 | Good |
| Dec | 7 | Good |
Where is Santo Antônio do Sudoeste?
Santo Antônio do Sudoeste sits at 26.1°S, 53.7°W, 544 m above sea level, in Brazil. The nearest listed city is Dionísio Cerqueira, 22 km away.
Topography around Santo Antônio do Sudoeste
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santo Antônio do Sudoeste.
Within 3 km, the terrain around Santo Antônio do Sudoeste has only modest variations in elevation — a maximum elevation change of 166 m around an average of 555 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 435 m; within 80 km, large variations in elevation — a maximum elevation change of 810 m.
The land around Santo Antônio do Sudoeste is covered by trees (43%) and cropland (22%) within 3 km, trees (55%) and cropland (30%) within 16 km, and trees (67%) 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 Santo Antônio do Sudoeste (-26.0736°, -53.7253°, elevation 544 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.