Arcos weather in October

In October, Arcos sees average daytime highs of 29°C and overnight lows near 19°C, with 84 mm of rain across 11.6 wet days and about 12.5 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 27% of the time in October, and the air most often feels humid.

Daylight stretches from about 12 h 12 min at the start of October to 12 h 42 min by month's end. Set against the rest of the year, October is Arcos's 7th-clearest and 2nd-windiest month. For the whole year in context, see Arcos's year-round climate.

Daytime high
29°
1st warmest
Overnight low
19°
7th coldest
Rainfall
84 mm
11.6 wet days
Daylight
12 h 30 min
6:33 AM – 7:01 PM
Cloud cover
61%
7th clearest
Wind
9 km/h
2nd windiest
Solar energy
5.92 kWh/m²
Travel score
5.2
out of 10

Arcos 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 29°C through the month.

A typical October day in Arcos reaches about 29°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 33°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12918
22918
32918
42918
52918
62918
72918
82918
92918
102918
112918
122918
132919
142919
152919
162919
172919
182919
192919
202919
212919
222919
232919
242919
252919
262919
272919
282919
292919
302919
312919

Arcos weather by month

How October compares with the rest of the year at a glance. October is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°24121.313.14.2
Feb29° / 20°14016.312.74.5
Mar28° / 19°15918.812.14.8
Apr27° / 18°579.311.56.6
May25° / 15°345.111.17.7
Jun25° / 14°122.110.88.5
Jul25° / 13°71.310.98.7
Aug27° / 14°11211.38.2
Sep29° / 17°466.711.96.4
Oct29° / 19°8411.612.55.2
Nov28° / 19°18419.2134.7
Dec28° / 20°24723.913.24.3

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 17% of October, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35050
45050
55050
64951
74852
84852
94951
104852
114852
124654
134654
144654
154555
164555
174456
184456
194357
204357
214258
224258
234060
243961
253961
263763
273664
283565
293565
303466
313466

Chance of precipitation in October

Any precipitation

Arcos gets around 84 mm of rain over 11.6 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 38% and peaks near 51% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
133
233
333
433
533
633
733
833
933
1033
1133
1233
1334
1434
1535
1635
1736
1836
1937
2038
2139
2240
2341
2443
2544
2645
2746
2848
2949
3050
3151

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 40% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
123273811
223273812
322273912
422273913
522273913
621263814
721263814
821263815
921273715
1021273715
1121273715
1221273715
1320283715
1419283715
1518293815
1617293915
1716293915
1815294016
1914294116
2012294217
2111294217
2210294318
239284419
248284420
257284521
266274522
276264424
285264425
295254426
304244428
314224429

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 12 min at the start of October to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over October. Sunrise moves from 6:46 AM to 6:24 AM, and sunset from 6:57 PM to 7:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:466:57
212.26:456:57
312.26:446:57
412.26:436:57
512.36:426:58
612.36:416:58
712.36:406:58
812.36:396:59
912.36:396:59
1012.46:386:59
1112.46:377:00
1212.46:367:00
1312.46:357:00
1412.46:357:01
1512.56:347:01
1612.56:337:01
1712.56:327:02
1812.56:327:02
1912.56:317:03
2012.56:307:03
2112.66:297:03
2212.66:297:04
2312.66:287:04
2412.66:277:05
2512.66:277:05
2612.76:267:06
2712.76:267:06
2812.76:257:06
2912.76:257:07
3012.76:247:07
3112.76:247:08

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.92 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.99 kWh/m² to a high of 5.92 kWh/m² in October across the year — October's 5.92 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
126.0Bright
136.0Bright
146.0Bright
156.0Bright
166.0Intense
176.0Bright
186.0Bright
196.0Bright
206.0Bright
216.0Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.7Bright
315.7Bright
Planning a trip in October

Hazard calendar for Arcos

In seasonPeak

None of Arcos's seasonal hazards are active in October. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Arcos's monsoon runs November–March, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Arcos?

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

5.2
Sightseeing
7th-best month of the year
6.7
Beach & pool
7th-best month of the year

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

What to pack for Arcos in October

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

In October, Arcos sees daytime highs around 29°C and nights near 19°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Arcos in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arcos peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 15Jun 20UV 7
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep10Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Arcos 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 Arcos is worst in September — around 20 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1719 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr8Good
May8Good
Jun8Good
Jul7Good
Aug10Good
Sep20Moderate
Oct12Good
Nov7Good
Dec7Good
Location & terrain

Where is Arcos?

Arcos sits at 20.3°S, 45.5°W, 737 m above sea level, in Brazil. The nearest listed city is Formiga, 23 km away.

Topography around Arcos

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

Within 3 km, the terrain around Arcos has only modest variations in elevation — a maximum elevation change of 130 m around an average of 753 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 405 m; within 80 km, large variations in elevation — a maximum elevation change of 791 m.

The land around Arcos is covered by trees (32%), grassland (31%) and artificial surfaces (28%) within 3 km, trees (42%) and grassland (38%) within 16 km, and grassland (52%) and trees (30%) within 80 km.

3 km
130 m
16 km
405 m
80 km
791 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Formiga 23 km · Lagoa da Prata 29 km · Santo Antônio do Monte 34 km · Água Rasa 42 km · Itapecerica 48 km · Piumhi 48 km · Bambuí 55 km · Luz 56 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 Arcos (-20.2819°, -45.5394°, elevation 737 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).