São Miguel do Iguaçu weather in August

In August, São Miguel do Iguaçu sees average daytime highs of 25°C and overnight lows near 15°C, with 94 mm of rain across 6.9 wet days and about 11.1 hours of daylight. It is the 9th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 54% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 48 min at the start of August to 11 h 30 min by month's end. Set against the rest of the year, August is São Miguel do Iguaçu's 1st-clearest and 1st-windiest month. For the whole year in context, see São Miguel do Iguaçu's year-round climate.

Daytime high
25°
9th warmest
Overnight low
15°
3rd coldest
Rainfall
94 mm
6.9 wet days
Daylight
11 h 06 min
8:08 AM – 7:14 PM
Cloud cover
41%
1st clearest
Wind
12 km/h
1st windiest
Solar energy
4.13 kWh/m²
Travel score
7.7
out of 10

São Miguel do Iguaçu is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 26°C by the end.

A typical August day in São Miguel do Iguaçu reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 31°C. Set against its neighbours, August runs about 3°C warmer than July and about 2°C cooler than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52414
62414
72414
82414
92414
102415
112515
122515
132515
142515
152515
162515
172515
182515
192515
202515
212515
222615
232615
242615
252615
262616
272616
282616
292616
302616
312616

How August really feels in São Miguel do Iguaçu

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August 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 August compares with the rest of the year at a glance. August is the 9th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°15316.213.43.9
Feb31° / 22°13814.112.94.2
Mar30° / 21°12512.612.24.9
Apr28° / 19°1279.111.46.4
May24° / 16°1569.610.87.0
Jun22° / 14°130910.57.0
Jul23° / 14°1138.610.67.2
Aug25° / 15°946.911.17.7
Sep27° / 17°1499.811.86.7
Oct28° / 19°18313.212.65.5
Nov29° / 20°14611.713.25.1
Dec30° / 22°16814.913.54.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of August, with mostly cloudy or overcast conditions the remaining 36%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36238
46238
56238
66238
76238
86238
96238
106238
116238
126238
136238
146238
156238
166238
176436
186436
196436
206436
216634
226634
236634
246634
256733
266733
276733
286733
296832
306832
316733

Chance of precipitation in August

Any precipitation

São Miguel do Iguaçu gets around 94 mm of rain over 6.9 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
122
222
322
422
522
622
722
822
922
1022
1122
1222
1322
1423
1523
1623
1723
1823
1923
2023
2123
2223
2322
2422
2522
2622
2722
2822
2922
3022
3123

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 39% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14235212
24235212
34135222
44135222
54135222
64134222
74134222
84134223
94134223
104134223
114134223
124134223
134135223
144035223
154035223
164036223
174036223
184036223
194036222
203936232
213936232
223836242
233836242
243736243
253736253
263735253
273735253
283635253
293635254
303635264
313535264

Wind in August

Winds average 12 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 48 min at the start of August to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over August. Sunrise moves from 8:19 AM to 7:53 AM, and sunset from 7:07 PM to 7:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.88:197:07
210.88:187:08
310.88:187:08
410.98:177:09
510.98:167:09
610.98:167:10
710.98:157:10
810.98:147:10
911.08:147:11
1011.08:137:11
1111.08:127:12
1211.08:117:12
1311.08:107:13
1411.18:107:13
1511.18:097:14
1611.18:087:14
1711.18:077:15
1811.18:067:15
1911.28:057:16
2011.28:047:16
2111.28:037:16
2211.28:027:17
2311.38:017:17
2411.38:007:18
2511.38:007:18
2611.37:597:19
2711.47:587:19
2811.47:567:19
2911.47:557:20
3011.47:547:20
3111.57:537:21

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.13 kWh/m².

For context, solar energy here swings from a low near 2.89 kWh/m² to a high of 6.4 kWh/m² in December across the year — August's 4.13 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.7Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.9Moderate
93.9Moderate
103.9Moderate
114.0Moderate
124.0Moderate
134.0Bright
144.0Bright
154.1Bright
164.1Bright
174.2Bright
184.2Bright
194.2Bright
204.3Bright
214.3Bright
224.3Bright
234.4Bright
244.4Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in August

Is August a good time to visit São Miguel do Iguaçu?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.7
Sightseeing
1st-best month of the year
6.8
Beach & pool
2nd-best month of the year

August is one of the better times to visit São Miguel do Iguaçu for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São Miguel do Iguaçu in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, São Miguel do Iguaçu sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes. About 7 days see rain.

light clothes

UV index in São Miguel do Iguaçu in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeJan 19UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep6High
Oct10Very high
Nov12Extreme
Dec13Extreme

Air quality in São Miguel do Iguaçu in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1618 µg/m³Mar 156 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar6Good
Apr7Good
May7Good
Jun7Good
Jul7Good
Aug11Good
Sep19Moderate
Oct12Good
Nov8Good
Dec7Good
Location & terrain

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.

3 km
170 m
16 km
243 m
80 km
679 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Medianeira 16 km · Santa Terezinha de Itaipu 19 km · Matelândia 28 km · Foz do Iguacu 42 km · Iguazu 44 km · Presidente Franco 44 km · Ciudad del Este 45 km · Santa Helena 55 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
Roman Catholic 57%Evangelical 27%none 9%other 4%

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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).