Quedas do Iguaçu in Fall
In fall (March, April and May), Quedas do Iguaçu sees average daytime highs around 26°C and overnight lows near 16°C, with 414 mm of rain over about 35 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 40% of the time across fall, and the air most often feels muggy.
Fall is Quedas do Iguaçu's 2nd-best season to visit on our travel score. For the whole year in context, see Quedas do Iguaçu's year-round climate.
- Avg daytime high
- 26°C
- 3rd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 414 mm
- 35 wet days
- Avg wind
- 8 km/h
- Travel score
- 6.3
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Quedas do Iguaçu 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 Quedas do Iguaçu reaches about 26°C and drops to 16°C overnight. The warmest of the three months is March, the coolest May.
Quedas do Iguaçu 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° / 20° | 181 | 18.3 | 13.4 | 4.2 |
| Feb | 29° / 20° | 182 | 16.9 | 12.9 | 4.4 |
| Mar | 29° / 19° | 141 | 14.3 | 12.2 | 5.3 |
| Apr | 26° / 16° | 124 | 10.2 | 11.4 | 6.6 |
| May | 23° / 13° | 149 | 10.1 | 10.8 | 6.9 |
| Jun | 22° / 12° | 142 | 9.5 | 10.4 | 6.8 |
| Jul | 22° / 12° | 114 | 8.4 | 10.6 | 7.1 |
| Aug | 24° / 13° | 96 | 7.5 | 11.1 | 7.6 |
| Sep | 26° / 15° | 162 | 10.4 | 11.8 | 6.8 |
| Oct | 27° / 17° | 212 | 15.3 | 12.6 | 5.7 |
| Nov | 28° / 18° | 166 | 13.3 | 13.2 | 5.6 |
| Dec | 29° / 19° | 193 | 17 | 13.6 | 4.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 40% of the time across fall.
Chance of precipitation in Fall
Quedas do Iguaçu gets around 414 mm of rain over 35 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 8 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 4.3 kWh/m².
Is fall a good time to visit Quedas do Iguaçu?
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 Quedas do Iguaçu for sightseeing.
What to pack for Quedas do Iguaçu in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Quedas do Iguaçu sees daytime highs around 26°C and nights near 16°C. Pack light clothes and rain gear. Worth having: sun protection. About 35 days see rain.
UV index in Quedas do Iguaçu 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 Quedas do Iguaçu peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (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 | 9 | 6 | 5 | 5 | 6 | 8 | 10 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | High | Very 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 | High |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 8 | Very high |
| Oct | 10 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in Quedas do Iguaçu 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 Quedas do Iguaçu is worst in September — around 20 µg/m³ PM2.5 (moderate), about 3.1× 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) | 8 | 7 | 6 | 8 | 7 | 7 | 9 | 12 | 20 | 13 | 9 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 7 | Good |
| Mar | 6 | Good |
| Apr | 8 | Good |
| May | 7 | Good |
| Jun | 7 | Good |
| Jul | 9 | Good |
| Aug | 12 | Moderate |
| Sep | 20 | Moderate |
| Oct | 13 | Moderate |
| Nov | 9 | Good |
| Dec | 7 | Good |
Where is Quedas do Iguaçu?
Quedas do Iguaçu sits at 25.5°S, 52.9°W, 564 m above sea level, in Brazil. The nearest listed city is Dois Vizinhos, 35 km away.
Topography around Quedas do Iguaçu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Quedas do Iguaçu.
Within 3 km, the terrain around Quedas do Iguaçu has only modest variations in elevation — a maximum elevation change of 180 m around an average of 546 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 486 m; within 80 km, large variations in elevation — a maximum elevation change of 920 m.
The land around Quedas do Iguaçu is covered by trees (46%) and cropland (27%) within 3 km, trees (44%) and cropland (35%) within 16 km, and trees (38%), cropland (35%) and grassland (23%) 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 Quedas do Iguaçu (-25.453°, -52.9046°, elevation 564 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.