São Miguel do Iguaçu weather in October

In October, São Miguel do Iguaçu sees average daytime highs of 28°C and overnight lows near 19°C, with 183 mm of rain across 13.2 wet days and about 12.6 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 34% of the time in October, and the air most often feels muggy.

Daylight stretches from about 12 h 12 min at the start of October to 12 h 54 min by month's end. Set against the rest of the year, October is São Miguel do Iguaçu's 12th-clearest and 5th-windiest month. For the whole year in context, see São Miguel do Iguaçu's year-round climate.

Daytime high
28°
6th warmest
Overnight low
19°
7th coldest
Rainfall
183 mm
13.2 wet days
Daylight
12 h 36 min
7:04 AM – 7:40 PM
Cloud cover
59%
12th clearest
Wind
10 km/h
5th windiest
Solar energy
5.43 kWh/m²
Travel score
5.5
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 October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical October day in São Miguel do Iguaçu reaches about 28°C in the afternoon and slips back to 19°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 33°C. Set against its neighbours, October runs about 2°C warmer than September and about 1°C cooler than November.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12718
22718
32718
42818
52818
62818
72818
82818
92819
102819
112819
122819
132819
142819
152819
162919
172919
182919
192919
202919
212919
222919
232919
242919
252919
262919
272919
282919
292919
302919
312919

How October really feels in São Miguel do Iguaçu

Once humidity and wind are folded in, October 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

October 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 October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in October, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24753
34654
44654
54555
64753
74654
84654
94753
104654
114654
124654
134654
144753
154753
164753
174753
184852
194753
204753
214753
224753
234852
244852
254852
264852
274852
284753
294951
304951
314951

Chance of precipitation in October

Any precipitation

São Miguel do Iguaçu gets around 183 mm of rain over 13.2 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
142
242
342
442
541
641
741
841
941
1041
1141
1241
1341
1442
1542
1643
1743
1844
1944
2044
2145
2245
2345
2445
2545
2645
2744
2844
2944
3044
3144

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 48% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1162235280
2152135290
3142135301
4132035311
5122035321
6111934341
7101834362
8101833372
991732383
1091732403
1181631414
1281630424
1371629435
1471629445
1561628446
1661527456
1751527467
1851526477
1951425488
2051425488
2151424489
2251424489
2351424489
24513234810
25613234810
26613234810
27613224810
28713224811
29712224811
30712214811
31712214811

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 10 km/h on the calmest days to 11 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
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 12 min at the start of October to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over October. Sunrise moves from 7:19 AM to 6:52 AM, and sunset from 7:33 PM to 7:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.27:197:33
212.37:187:33
312.37:177:34
412.37:167:34
512.37:157:35
612.47:147:35
712.47:137:36
812.47:127:36
912.47:117:37
1012.57:107:37
1112.57:097:38
1212.57:087:38
1312.57:077:39
1412.67:067:39
1512.67:057:40
1612.67:047:40
1712.67:037:41
1812.77:027:41
1912.77:017:42
2012.77:007:42
2112.76:597:43
2212.76:597:43
2312.86:587:44
2412.86:577:45
2512.86:567:45
2612.86:557:46
2712.96:557:46
2812.96:547:47
2912.96:537:48
3012.96:537:48
3112.96:527:49

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.43 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 — October's 5.43 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.1Bright
45.1Bright
55.1Bright
65.2Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.8Bright
315.8Bright
Planning a trip in October

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

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

5.5
Sightseeing
7th-best month of the year
6.4
Beach & pool
6th-best month of the year

October is a reasonable time to visit São Miguel do Iguaçu for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São Miguel do Iguaçu in October

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

In October, São Miguel do Iguaçu sees daytime highs around 28°C and nights near 19°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in São Miguel do Iguaçu in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks 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 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 October

GoodModeratePoorUnhealthyVery unhealthy

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