Barra do Piraí in Fall
In fall (March, April and May), Barra do Piraí sees average daytime highs around 27°C and overnight lows near 18°C, with 337 mm of rain over about 42 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 30°C in early March to 24°C by late May. The sky is clear or mostly clear about 25% of the time across fall, and the air most often feels muggy.
Fall is Barra do Piraí's 2nd-best season to visit on our travel score. For the whole year in context, see Barra do Piraí's year-round climate.
- Avg daytime high
- 27°C
- 2nd-warmest season
- Avg overnight low
- 18°C
- Rainfall
- 337 mm
- 42 wet days
- Avg wind
- 6 km/h
- Travel score
- 5.7
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Barra do Piraí in Fall
Over the season highs ease from about 30°C in early March to 24°C by late May.
A typical fall day in Barra do Piraí reaches about 27°C and drops to 18°C overnight. The warmest of the three months is March, the coolest May.
How fall really feels in Barra do Piraí
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Barra do Piraí 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 | 30° / 21° | 282 | 22 | 13.2 | 3.7 |
| Feb | 30° / 21° | 200 | 17.6 | 12.8 | 3.9 |
| Mar | 29° / 20° | 195 | 20.3 | 12.2 | 4.2 |
| Apr | 27° / 19° | 89 | 12.5 | 11.5 | 6.0 |
| May | 25° / 16° | 53 | 9.3 | 10.9 | 7.0 |
| Jun | 25° / 15° | 28 | 5.5 | 10.7 | 7.8 |
| Jul | 24° / 15° | 29 | 5.3 | 10.8 | 7.9 |
| Aug | 25° / 15° | 27 | 5.5 | 11.2 | 7.7 |
| Sep | 26° / 17° | 66 | 10 | 11.9 | 6.6 |
| Oct | 27° / 18° | 112 | 14.1 | 12.5 | 5.7 |
| Nov | 27° / 19° | 202 | 19.3 | 13.1 | 4.8 |
| Dec | 29° / 20° | 249 | 22.2 | 13.4 | 4.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 25% of the time across fall.
Chance of precipitation in Fall
Barra do Piraí gets around 337 mm of rain over 42 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 6 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 30 min in early March to 10 h 42 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.
Hazard calendar for Barra do Piraí
In fall, Barra do Piraí overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Barra do Piraí's monsoon runs November–March, when most of the year's rain falls.
Is fall a good time to visit Barra do Piraí?
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 Barra do Piraí for sightseeing.
What to pack for Barra do Piraí in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Barra do Piraí sees daytime highs around 27°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 42 days see rain.
UV index in Barra do Piraí in Fall
Clear-sky midday UV across fall averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Barra do Piraí peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (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) | 15 | 15 | 12 | 10 | 7 | 6 | 5 | 8 | 7 | 12 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | High | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 12 | Extreme |
| Apr | 10 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | High |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 12 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Air quality in Barra do Piraí 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 Barra do Piraí is worst in July — around 38 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (December, 19 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) | 19 | 19 | 21 | 24 | 31 | 36 | 38 | 32 | 37 | 24 | 20 | 19 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Moderate | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 19 | Moderate |
| Mar | 21 | Moderate |
| Apr | 24 | Moderate |
| May | 31 | Moderate |
| Jun | 36 | Poor |
| Jul | 38 | Poor |
| Aug | 32 | Moderate |
| Sep | 37 | Poor |
| Oct | 24 | Moderate |
| Nov | 20 | Moderate |
| Dec | 19 | Moderate |
Where is Barra do Piraí?
Barra do Piraí sits at 22.5°S, 43.8°W, 366 m above sea level, in Brazil. The nearest listed city is Mendes, 11 km away.
Topography around Barra do Piraí
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Barra do Piraí.
Within 3 km, the terrain around Barra do Piraí has significant variations in elevation — a maximum elevation change of 273 m around an average of 429 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 789 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,208 m.
The land around Barra do Piraí is covered by grassland (53%) and trees (27%) within 3 km, grassland (50%) and trees (48%) within 16 km, and trees (46%) and grassland (38%) 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 Barra do Piraí (-22.47°, -43.8256°, elevation 366 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.