Rio do Sul weather in October

In October, Rio do Sul sees average daytime highs of 23°C and overnight lows near 15°C, with 150 mm of rain across 15.1 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 13% of the time in October, and the air most often feels humid.

Daylight stretches from about 12 h 18 min at the start of October to 13 hours by month's end. Set against the rest of the year, October is Rio do Sul's 12th-clearest and 2nd-windiest month. For the whole year in context, see Rio do Sul's year-round climate.

Daytime high
23°
7th warmest
Overnight low
15°
6th coldest
Rainfall
150 mm
15.1 wet days
Daylight
12 h 42 min
6:44 AM – 7:23 PM
Cloud cover
78%
12th clearest
Wind
7 km/h
2nd windiest
Solar energy
4.3 kWh/m²
Travel score
5.7
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 24°C by the end.

A typical October day in Rio do Sul reaches about 23°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 28°C. Set against its neighbours, October runs about 2°C warmer than September and about 2°C cooler than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12214
22214
32214
42214
52214
62214
72214
82314
92314
102314
112314
122315
132315
142315
152315
162315
172315
182315
192415
202415
212415
222415
232415
242415
252415
262415
272415
282415
292415
302415
312415

Rio do Sul weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°18420.413.54.7
Feb28° / 19°15418.3134.8
Mar27° / 18°10515.212.25.6
Apr24° / 15°829.411.46.8
May21° / 12°1059.110.76.5
Jun19° / 10°1119.810.36.0
Jul19° / 991010.56.0
Aug20° / 10°949.6116.4
Sep22° / 13°15112.411.86.0
Oct23° / 15°15015.112.75.7
Nov25° / 16°12114.813.35.8
Dec27° / 18°14916.513.75.3

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in October, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of October, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32377
42377
52278
62278
72278
82278
92278
102278
112179
122179
132179
142179
152179
162179
172179
182179
192179
202278
212278
222278
232377
242575
252575
262575
272575
282575
292575
302575
312575

Chance of precipitation in October

Any precipitation

Rio do Sul gets around 150 mm of rain over 15.1 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 49% and peaks near 51% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
148
248
348
448
547
647
747
847
947
1048
1148
1248
1349
1449
1550
1650
1750
1851
1951
2051
2151
2251
2351
2450
2550
2650
2749
2849
2949
3048
3148

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the humid band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13137284
23037295
32936295
42936306
52835317
62734327
72633328
82632339
925313410
1024313411
1124303412
1223303512
1323293513
1422293613
1521293613
1621293714
1720293714
1819293814
1919293814
2018293814
2118293814
2218293814
2318293814
2418293814
2519293814
2619293814
2719293815
2819283815
2919283815
3019283716
3119273716

Wind in October

Winds average 7 km/h in October.

Across October, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over October. Sunrise moves from 7:00 AM to 6:31 AM, and sunset from 7:15 PM to 7:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.37:007:15
212.36:597:16
312.36:587:16
412.36:567:17
512.46:557:17
612.46:547:18
712.46:537:18
812.46:527:19
912.56:517:19
1012.56:507:20
1112.56:497:20
1212.66:487:21
1312.66:477:22
1412.66:467:22
1512.66:457:23
1612.76:447:23
1712.76:437:24
1812.76:427:25
1912.76:417:25
2012.86:407:26
2112.86:397:26
2212.86:387:27
2312.86:377:28
2412.96:377:28
2512.96:367:29
2612.96:357:30
2712.96:347:30
2813.06:337:31
2913.06:337:32
3013.06:327:32
3113.06:317:33

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.3 kWh/m².

For context, solar energy here swings from a low near 2.5 kWh/m² to a high of 5.6 kWh/m² in December across the year — October's 4.3 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
54.0Moderate
64.0Moderate
74.0Bright
84.0Bright
94.1Bright
104.1Bright
114.1Bright
124.2Bright
134.2Bright
144.2Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.4Bright
204.4Bright
214.4Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.6Bright
274.6Bright
284.6Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in October

Is October a good time to visit Rio do Sul?

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

5.7
Sightseeing
8th-best month of the year
4.6
Beach & pool
7th-best month of the year

October is a reasonable time to visit Rio do Sul for sightseeing.

What to pack for Rio do Sul in October

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

In October, Rio do Sul sees daytime highs around 23°C and nights near 15°C. Pack rain gear. Worth having: light clothes. About 15 days see rain.

rain gearlight clothes

UV index in Rio do Sul in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks 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 Rio do Sul peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 19UV 14Jul 10UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5Moderate
Aug6High
Sep8Very high
Oct9Very high
Nov12Extreme
Dec13Extreme

Air quality in Rio do Sul 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 Rio do Sul is worst in September — around 15 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 915 µg/m³Dec 1710 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr11Good
May13Moderate
Jun13Moderate
Jul14Moderate
Aug15Moderate
Sep15Moderate
Oct12Good
Nov10Good
Dec10Good
Location & terrain

Where is Rio do Sul?

Rio do Sul sits at 27.2°S, 49.6°W, 346 m above sea level, in Brazil. The nearest listed city is Presidente Getúlio, 18 km away.

Topography around Rio do Sul

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rio do Sul.

Within 3 km, the terrain around Rio do Sul has significant variations in elevation — a maximum elevation change of 353 m around an average of 424 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 703 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,735 m.

The land around Rio do Sul is covered by trees (51%) and artificial surfaces (35%) within 3 km, trees (65%) and grassland (21%) within 16 km, and trees (80%) within 80 km.

3 km
353 m
16 km
703 m
80 km
1,735 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Presidente Getúlio 18 km · Ibirama 21 km · Ituporanga 23 km · Pouso Redondo 29 km · Taió 37 km · Indaial 54 km · Otacílio Costa 56 km · Timbó 57 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 Rio do Sul (-27.2142°, -49.6431°, elevation 346 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).