Arari weather in October

In October, Arari sees average daytime highs of 35°C and overnight lows near 25°C, with 18 mm of rain across 3.6 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 47% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of October to 12 h 06 min by month's end. Set against the rest of the year, October is Arari's 4th-clearest and 1st-windiest month. For the whole year in context, see Arari's year-round climate.

Daytime high
35°
1st warmest
Overnight low
25°
11th coldest
Rainfall
18 mm
3.6 wet days
Daylight
12 h 06 min
5:42 AM – 5:46 PM
Cloud cover
47%
4th clearest
Wind
12 km/h
1st windiest
Solar energy
6.28 kWh/m²
Travel score
2.8
out of 10

Arari 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 35°C through the month.

A typical October day in Arari reaches about 35°C in the afternoon and slips back to 25°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 37°C. Set against its neighbours, October runs on par with September and on par with November.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13525
23525
33525
43525
53525
63525
73525
83525
93525
103525
113525
123525
133525
143525
153525
163525
173525
183525
193525
203525
213525
223525
233525
243525
253525
263525
273525
283525
293525
303525
313525

How October really feels in Arari

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
31 feel dangerously hot (≥ 39°C)
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.

Arari weather by month

How October compares with the rest of the year at a glance. October is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°24824.212.22.6
Feb32° / 24°28324.712.12.5
Mar31° / 24°36029.1122.4
Apr31° / 24°35427.611.92.4
May32° / 24°19221.911.83.0
Jun32° / 24°6312.111.84.1
Jul32° / 24°386.711.84.4
Aug34° / 24°102.411.93.9
Sep35° / 25°71.3123.2
Oct35° / 25°183.612.12.8
Nov35° / 25°436.912.22.8
Dec34° / 25°9914.212.22.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 29% of October, with mostly cloudy or overcast conditions the remaining 24%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18515
28515
38515
48416
58416
68218
78218
88218
98020
108020
118020
127822
137822
147723
157723
167624
177525
187525
197525
207327
217327
227228
237129
247030
257030
266832
276832
286733
296634
306535
316436

Chance of precipitation in October

Any precipitation

Arari gets around 18 mm of rain over 3.6 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 12% and peaks near 18% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
17
27
37
47
57
68
78
88
99
109
1110
1210
1310
1411
1511
1612
1712
1813
1913
2013
2114
2214
2315
2415
2516
2616
2717
2817
2917
3018
3118

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 87% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
111890
211890
312880
412880
512880
612880
712880
813870
913870
1013861
1113861
1214851
1314851
1414851
1514851
1614851
1714851
1814851
1914851
2014851
2113861
2213861
2313861
2413861
2512871
2612871
2712871
2812871
2911881
3011881
3111881

Wind in October

Winds average 12 km/h in October, the windiest month of the year.

Across October, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in October

DaylightNight

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

Days grow by about 6 minutes over October. Sunrise moves from 5:47 AM to 5:39 AM, and sunset from 5:49 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:475:49
212.05:475:49
312.05:465:49
412.05:465:48
512.05:465:48
612.05:455:48
712.05:455:48
812.15:445:48
912.15:445:47
1012.15:445:47
1112.15:435:47
1212.15:435:47
1312.15:435:47
1412.15:425:47
1512.15:425:47
1612.15:425:46
1712.15:425:46
1812.15:415:46
1912.15:415:46
2012.15:415:46
2112.15:415:46
2212.15:405:46
2312.15:405:46
2412.15:405:46
2512.15:405:46
2612.15:405:46
2712.15:395:46
2812.15:395:46
2912.15:395:46
3012.15:395:46
3112.15:395:46

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.28 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 6.28 kWh/m² in October across the year — October's 6.28 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in October

Hazard calendar for Arari

In seasonPeak

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

Arari's monsoon runs January–May, 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 Arari?

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

2.8
Sightseeing
6th-best month of the year
6.1
Beach & pool
5th-best month of the year

October is a weaker month for outdoor sightseeing in Arari. The water and warmth also suit a beach or pool day.

What to pack for Arari in October

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

In October, Arari sees daytime highs around 35°C and nights near 25°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Arari 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 Arari peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 15Jul 14UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Arari 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 Arari is worst in November — around 22 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (July, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1621 µg/m³Jul 148 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar15Moderate
Apr14Moderate
May10Good
Jun9Good
Jul8Good
Aug9Good
Sep11Good
Oct17Moderate
Nov22Moderate
Dec17Moderate
Location & terrain

Where is Arari?

Arari sits at 3.5°S, 44.8°W, 9 m above sea level, in Brazil. The nearest listed city is Vitória do Mearim, 10 km away.

Topography around Arari

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

Within 3 km, the terrain around Arari has only modest variations in elevation — a maximum elevation change of 14 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 42 m; within 80 km, only modest variations in elevation — a maximum elevation change of 112 m.

The land around Arari is covered by grassland (64%) within 3 km, grassland (53%) and trees (21%) within 16 km, and grassland (43%) and trees (38%) within 80 km.

3 km
14 m
16 km
42 m
80 km
112 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetlandmangroves
October weather nearby: Vitória do Mearim 10 km · Miranda do Norte 25 km · Anajatuba 28 km · Cajari 30 km · Matões do Norte 32 km · Viana 36 km · Penalva 47 km · Itapecuru Mirim 47 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 Arari (-3.4536°, -44.78°, elevation 9 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).