São Miguel do Iguaçu in Winter
In winter (June, July and August), São Miguel do Iguaçu sees average daytime highs around 23°C and overnight lows near 14°C, with 336 mm of rain over about 25 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs climb from about 22°C in early June to 26°C by late August. The sky is clear or mostly clear about 48% of the time across winter, and the air most often feels dry.
Winter is São Miguel do Iguaçu's best season of the year to visit on our travel score. For the whole year in context, see São Miguel do Iguaçu's year-round climate.
- Avg daytime high
- 23°C
- coldest season of the year
- Avg overnight low
- 14°C
- Rainfall
- 336 mm
- 25 wet days
- Avg wind
- 11 km/h
- Travel score
- 7.3
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in São Miguel do Iguaçu in Winter
Over the season highs climb from about 22°C in early June to 26°C by late August.
A typical winter day in São Miguel do Iguaçu reaches about 23°C and drops to 14°C overnight. The warmest of the three months is August, the coolest July.
How winter really feels in São Miguel do Iguaçu
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
winter sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
São Miguel do Iguaçu weather by month
How the three winter months (June, July and August) 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° / 22° | 153 | 16.2 | 13.4 | 3.9 |
| Feb | 31° / 22° | 138 | 14.1 | 12.9 | 4.2 |
| Mar | 30° / 21° | 125 | 12.6 | 12.2 | 4.9 |
| Apr | 28° / 19° | 127 | 9.1 | 11.4 | 6.4 |
| May | 24° / 16° | 156 | 9.6 | 10.8 | 7.0 |
| Jun | 22° / 14° | 130 | 9 | 10.5 | 7.0 |
| Jul | 23° / 14° | 113 | 8.6 | 10.6 | 7.2 |
| Aug | 25° / 15° | 94 | 6.9 | 11.1 | 7.7 |
| Sep | 27° / 17° | 149 | 9.8 | 11.8 | 6.7 |
| Oct | 28° / 19° | 183 | 13.2 | 12.6 | 5.5 |
| Nov | 29° / 20° | 146 | 11.7 | 13.2 | 5.1 |
| Dec | 30° / 22° | 168 | 14.9 | 13.5 | 4.3 |
Cloud cover in Winter
The sky is clear or mostly clear about 48% of the time across winter.
Chance of precipitation in Winter
São Miguel do Iguaçu gets around 336 mm of rain over 25 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 11 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 30 min in early June to 11 h 30 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 3.4 kWh/m².
Is winter a good time to visit São Miguel do Iguaçu?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit São Miguel do Iguaçu for general sightseeing.
What to pack for São Miguel do Iguaçu in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, São Miguel do Iguaçu sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes and rain gear. About 25 days see rain.
UV index in São Miguel do Iguaçu in Winter
Clear-sky midday UV across winter averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in São Miguel do Iguaçu peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 | 14 | 12 | 9 | 6 | 5 | 5 | 6 | 6 | 10 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | High | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 6 | High |
| Jun | 5 | High |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 6 | High |
| Oct | 10 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in São Miguel do Iguaçu in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in São Miguel do Iguaçu is worst in September — around 19 µg/m³ PM2.5 (moderate), about 3.2× 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 | 7 | 7 | 7 | 11 | 19 | 12 | 8 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 7 | Good |
| Mar | 6 | Good |
| Apr | 7 | Good |
| May | 7 | Good |
| Jun | 7 | Good |
| Jul | 7 | Good |
| Aug | 11 | Good |
| Sep | 19 | Moderate |
| Oct | 12 | Good |
| Nov | 8 | Good |
| Dec | 7 | Good |
Where is São Miguel do Iguaçu?
São Miguel do Iguaçu sits at 25.3°S, 54.2°W, 331 m above sea level, in Brazil. The nearest listed city is Medianeira, 16 km away.
Topography around São Miguel do Iguaçu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Miguel do Iguaçu.
Within 3 km, the terrain around São Miguel do Iguaçu has only modest variations in elevation — a maximum elevation change of 170 m around an average of 292 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 243 m; within 80 km, large variations in elevation — a maximum elevation change of 679 m.
The land around São Miguel do Iguaçu is covered by cropland (39%) and trees (27%) within 3 km, cropland (66%) and trees (21%) within 16 km, and trees (45%) and cropland (37%) 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 Iguaçu (-25.3481°, -54.2378°, elevation 331 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.