São Marcos weather in October

In October, São Marcos sees average daytime highs of 22°C and overnight lows near 12°C, with 210 mm of rain across 14.5 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 23°C by the end. The sky is clear or mostly clear about 25% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of October to 13 h 06 min by month's end. Set against the rest of the year, October is São Marcos's 12th-clearest and 2nd-windiest month. For the whole year in context, see São Marcos's year-round climate.

Daytime high
22°
7th warmest
Overnight low
12°
6th coldest
Rainfall
210 mm
14.5 wet days
Daylight
12 h 42 min
6:48 AM – 7:31 PM
Cloud cover
68%
12th clearest
Wind
10 km/h
2nd windiest
Solar energy
5.03 kWh/m²
Travel score
5.9
out of 10

São Marcos 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

Highs climb over the month, from about 21°C in the first days to 23°C by the end.

A typical October day in São Marcos reaches about 22°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 27°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)
12111
22111
32111
42111
52111
62112
72112
82112
92112
102212
112212
122212
132212
142212
152212
162212
172213
182213
192213
202213
212213
222213
232213
242313
252313
262313
272313
282313
292313
302313
312313

São Marcos weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 17°1821813.65.4
Feb26° / 16°16017.3135.3
Mar25° / 15°14214.612.26.1
Apr22° / 13°12511.311.36.4
May19° / 10°14010.410.65.9
Jun17° / 13610.510.25.4
Jul17° / 1681110.35.3
Aug19° / 12810.2116.2
Sep20° / 10°16712.411.85.9
Oct22° / 12°21014.512.75.9
Nov24° / 13°15413.413.46.4
Dec26° / 15°17215.513.85.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 63%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43565
53565
63565
73367
83367
93367
103466
113466
123466
133466
143565
153565
163664
173664
183664
193862
203862
213862
223961
233961
243961
254060
264159
274159
284159
294258
304258
314357

Chance of precipitation in October

Any precipitation

São Marcos gets around 210 mm of rain over 14.5 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 47% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
146
246
346
446
546
647
747
847
948
1048
1148
1248
1348
1448
1549
1649
1749
1849
1948
2048
2148
2247
2346
2446
2545
2644
2744
2844
2944
3044
3144

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 44% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15828131
25728141
35529151
45429161
55229181
65129191
74929211
84829221
94729231
104628242
114528252
124528252
134428262
144329262
154229271
164230271
174130281
184031281
194031281
203931281
213931281
223931281
233932282
243932282
253932282
263932282
273832282
283832273
293832273
303832273
313831274

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
1410calm
1510calm
1610calm
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 18 min at the start of October to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over October. Sunrise moves from 7:05 AM to 6:35 AM, and sunset from 7:22 PM to 7:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.37:057:22
212.37:047:22
312.37:037:23
412.47:017:23
512.47:007:24
612.46:597:24
712.56:587:25
812.56:577:26
912.56:567:26
1012.56:557:27
1112.66:537:27
1212.66:527:28
1312.66:517:29
1412.76:507:29
1512.76:497:30
1612.76:487:31
1712.76:477:31
1812.86:467:32
1912.86:457:33
2012.86:447:33
2112.86:437:34
2212.96:427:35
2312.96:417:35
2412.96:407:36
2513.06:397:37
2613.06:397:37
2713.06:387:38
2813.06:377:39
2913.16:367:40
3013.16:357:40
3113.16:357:41

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.03 kWh/m².

For context, solar energy here swings from a low near 2.56 kWh/m² to a high of 6.35 kWh/m² in December across the year — October's 5.03 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.8Bright
94.8Bright
104.8Bright
114.9Bright
124.9Bright
134.9Bright
145.0Bright
155.0Bright
165.0Bright
175.1Bright
185.1Bright
195.1Bright
205.2Bright
215.2Bright
225.3Bright
235.3Bright
245.3Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
315.6Bright
Planning a trip in October

Is October a good time to visit São Marcos?

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

5.9
Sightseeing
5th-best month of the year
4.1
Beach & pool
7th-best month of the year

October is a reasonable time to visit São Marcos for sightseeing.

What to pack for São Marcos in October

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

In October, São Marcos sees daytime highs around 22°C and nights near 12°C. Pack rain gear. Worth having: sun protection. About 15 days see rain.

rain gearsun protection

UV index in São Marcos in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 8 (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 Marcos peaks around January 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 17UV 14Jun 21UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct8Very high
Nov12Extreme
Dec13Extreme

Air quality in São Marcos 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 Marcos is worst in August — around 22 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (February, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1822 µg/m³Feb 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar10Good
Apr11Good
May12Moderate
Jun12Good
Jul15Moderate
Aug22Moderate
Sep18Moderate
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is São Marcos?

São Marcos sits at 29.0°S, 51.1°W, 741 m above sea level, in Brazil. The nearest listed city is Flores da Cunha, 13 km away.

Topography around São Marcos

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Marcos.

Within 3 km, the terrain around São Marcos has significant variations in elevation — a maximum elevation change of 399 m around an average of 750 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 716 m; within 80 km, large variations in elevation — a maximum elevation change of 1,135 m.

The land around São Marcos is covered by trees (55%) and grassland (27%) within 3 km, trees (65%) and grassland (30%) within 16 km, and trees (59%) and grassland (24%) within 80 km.

3 km
399 m
16 km
716 m
80 km
1,135 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Flores da Cunha 13 km · Caxias do Sul 24 km · Farroupilha 39 km · Nova Petrópolis 45 km · Veranópolis 47 km · Gramado 49 km · Bento Gonçalves 49 km · Canela 49 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 Marcos (-28.9711°, -51.0681°, elevation 741 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).