São João do Piauí in Fall
In fall (March, April and May), São João do Piauí sees average daytime highs around 32°C and overnight lows near 23°C, with 235 mm of rain over about 29 wet days across the season. It is the coldest season of the year and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 32°C. The sky is clear or mostly clear about 26% of the time across fall, and the air most often feels oppressive.
Fall is São João do Piauí's 2nd-best season to visit on our travel score. For the whole year in context, see São João do Piauí's year-round climate.
- Avg daytime high
- 32°C
- coldest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 235 mm
- 29 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.8
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in São João do Piauí in Fall
Across fall, daytime highs hold fairly steady around 32°C.
A typical fall day in São João do Piauí reaches about 32°C and drops to 23°C overnight. The warmest of the three months is May, the coolest March.
How fall really feels in São João do Piauí
Once humidity and wind are folded in, fall brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
São João do Piauí 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 | 32° / 24° | 147 | 16.5 | 12.4 | 3.2 |
| Feb | 32° / 23° | 139 | 15 | 12.3 | 3.4 |
| Mar | 32° / 23° | 139 | 16.3 | 12.1 | 3.5 |
| Apr | 32° / 23° | 74 | 9.9 | 11.8 | 3.8 |
| May | 33° / 24° | 22 | 3 | 11.6 | 4.0 |
| Jun | 33° / 23° | 1 | 0.3 | 11.5 | 4.6 |
| Jul | 33° / 22° | 1 | 0.2 | 11.6 | 4.6 |
| Aug | 34° / 22° | 0 | 0 | 11.7 | 3.8 |
| Sep | 36° / 24° | 2 | 0.2 | 12 | 2.8 |
| Oct | 36° / 25° | 18 | 2.1 | 12.2 | 2.4 |
| Nov | 35° / 25° | 55 | 6.3 | 12.4 | 2.8 |
| Dec | 34° / 25° | 75 | 9.8 | 12.5 | 3.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 26% of the time across fall.
Chance of precipitation in Fall
São João do Piauí gets around 235 mm of rain over 29 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — 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 12 min in early March to 11 h 36 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 5.2 kWh/m².
Hazard calendar for São João do Piauí
In fall, São João do Piauí overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
São João do Piauí's rainy season runs December–April, when most of the year's rain falls.
Is fall a good time to visit São João do Piauí?
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 weaker month for outdoor sightseeing in São João do Piauí. The water and warmth also suit a beach or pool day.
What to pack for São João do Piauí in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, São João do Piauí sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.
UV index in São João do Piauí in Fall
Clear-sky midday UV across fall averages around 13 (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 João do Piauí peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 10 (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 | 15 | 13 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | Extreme |
| May | 10 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Where is São João do Piauí?
São João do Piauí sits at 8.4°S, 42.2°W, 219 m above sea level, in Brazil. The nearest listed city is Canto do Buriti, 82 km away.
Topography around São João do Piauí
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São João do Piauí.
Within 3 km, the terrain around São João do Piauí has only modest variations in elevation — a maximum elevation change of 90 m around an average of 227 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 204 m; within 80 km, significant variations in elevation — a maximum elevation change of 518 m.
The land around São João do Piauí is covered by shrubs (49%) and grassland (28%) within 3 km, shrubs (88%) within 16 km, and shrubs (94%) 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 João do Piauí (-8.3581°, -42.2467°, elevation 219 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.