Santana do Araguaia weather in October

In October, Santana do Araguaia sees average daytime highs of 32°C and overnight lows near 23°C, with 130 mm of rain across 16.5 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 31°C by the end. The sky is clear or mostly clear about 23% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of October to 12 h 18 min by month's end. Set against the rest of the year, October is Santana do Araguaia's 6th-clearest and 5th-windiest month. For the whole year in context, see Santana do Araguaia's year-round climate.

Daytime high
32°
5th warmest
Overnight low
23°
12th coldest
Rainfall
130 mm
16.5 wet days
Daylight
12 h 12 min
6:00 AM – 6:13 PM
Cloud cover
67%
6th clearest
Wind
5 km/h
5th windiest
Solar energy
5.83 kWh/m²
Travel score
3.1
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 33°C in the first days to 31°C by the end.

A typical October day in Santana do Araguaia reaches about 32°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 35°C. Set against its neighbours, October runs about 2°C cooler than September and about 2°C warmer than November.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
113323
123323
133323
143323
153323
163323
173323
183223
193223
203223
213223
223223
233223
243223
253223
263223
273223
283223
293123
303123
313123

How October really feels in Santana do Araguaia

Once humidity and wind are folded in, October averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Santana do Araguaia weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°31628.412.52.8
Feb30° / 22°27826.112.32.8
Mar30° / 23°29328.612.12.8
Apr31° / 23°21122.611.83.2
May32° / 22°8010.911.64.1
Jun33° / 22°51.111.54.6
Jul34° / 21°10.211.54.3
Aug35° / 22°40.811.73.3
Sep35° / 23°364.811.93.0
Oct32° / 23°13016.512.23.1
Nov31° / 23°2262412.42.9
Dec30° / 23°27426.912.52.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35248
45248
55149
65050
74951
84951
94852
104753
114654
124357
134258
144159
154060
163961
173763
183664
193565
203466
213268
223169
232971
242872
252773
262773
272674
282476
292476
302476
312377

Chance of precipitation in October

Any precipitation

Santana do Araguaia gets around 130 mm of rain over 16.5 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 52% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
137
238
338
439
539
640
740
841
941
1042
1143
1244
1345
1446
1547
1648
1750
1852
1954
2056
2159
2261
2363
2465
2567
2669
2770
2871
2972
3073
3173

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 77% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11524664
20423694
30423694
40322714
50321715
60321715
70220735
80220735
90220735
100219736
110219736
120118756
130117766
140116767
150115777
160114778
170113788
180112789
1901117810
2001107910
210088111
220078112
230068212
240058213
250048214
260038314
270038215
280028315
290028216
300018316
310018217

Wind in October

Winds average 5 km/h in October.

Across October, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 06 min at the start of October to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over October. Sunrise moves from 6:08 AM to 5:55 AM, and sunset from 6:13 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:086:13
212.16:076:13
312.16:076:13
412.16:066:13
512.16:066:13
612.16:056:13
712.16:056:13
812.16:046:13
912.26:036:13
1012.26:036:13
1112.26:026:13
1212.26:026:13
1312.26:026:13
1412.26:016:13
1512.26:016:13
1612.26:006:13
1712.26:006:13
1812.25:596:13
1912.25:596:13
2012.25:586:13
2112.35:586:13
2212.35:586:13
2312.35:576:13
2412.35:576:14
2512.35:576:14
2612.35:566:14
2712.35:566:14
2812.35:566:14
2912.35:566:14
3012.35:556:15
3112.35:556:15

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.83 kWh/m².

For context, solar energy here swings from a low near 4.68 kWh/m² to a high of 5.99 kWh/m² in September across the year — October's 5.83 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
36.0Bright
46.0Bright
56.0Bright
66.0Bright
76.0Bright
86.0Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.5Bright
Planning a trip in October

Hazard calendar for Santana do Araguaia

In seasonPeak

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

Santana do Araguaia's monsoon runs November–April, 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 Santana do Araguaia?

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

3.1
Sightseeing
6th-best month of the year
5.3
Beach & pool
6th-best month of the year

October is a weaker month for outdoor sightseeing in Santana do Araguaia.

What to pack for Santana do Araguaia in October

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

In October, Santana do Araguaia sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Santana do Araguaia 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 Santana do Araguaia peaks around February 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 20UV 15Jun 21UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug10Very high
Sep11Extreme
Oct10Extreme
Nov12Extreme
Dec11Extreme

Air quality in Santana do Araguaia 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 Santana do Araguaia is worst in September — around 128 µg/m³ PM2.5 (unhealthy), about 11.2× the cleanest month (February, 11 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyModerateSep 16117 µg/m³Feb 1212 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar13Moderate
Apr12Moderate
May14Moderate
Jun16Moderate
Jul15Moderate
Aug44Poor
Sep128Unhealthy
Oct34Moderate
Nov19Moderate
Dec16Moderate
Location & terrain

Where is Santana do Araguaia?

Santana do Araguaia sits at 9.3°S, 50.4°W, 178 m above sea level, in Brazil. The nearest listed city is Santa Maria das Barreiras, 87 km away.

Topography around Santana do Araguaia

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

Within 3 km, the terrain around Santana do Araguaia has only modest variations in elevation — a maximum elevation change of 34 m around an average of 174 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 75 m; within 80 km, significant variations in elevation — a maximum elevation change of 574 m.

The land around Santana do Araguaia is covered by grassland (54%) within 3 km, grassland (61%) and trees (24%) within 16 km, and grassland (47%) and trees (45%) within 80 km.

3 km
34 m
16 km
75 m
80 km
574 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Santa Maria das Barreiras 87 km · Vila Rica 113 km · Redenção 149 km · Conceição do Araguaia 168 km · Lagoa da Confusão 181 km · Paraíso do Tocantins 188 km · Confresa 197 km · Guaraí 210 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 Santana do Araguaia (-9.335°, -50.35°, elevation 178 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).