Barão de Grajaú weather in October

In October, Barão de Grajaú sees average daytime highs of 36°C and overnight lows near 26°C, with 21 mm of rain across 3.1 wet days and about 12.2 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 36°C through the month. The sky is clear or mostly clear about 59% of the time in October, and the air most often feels humid.

Daylight stretches from about 12 h 06 min at the start of October to 12 h 12 min by month's end. Set against the rest of the year, October is Barão de Grajaú's 4th-clearest and 5th-windiest month. For the whole year in context, see Barão de Grajaú's year-round climate.

Daytime high
36°
1st warmest
Overnight low
26°
12th coldest
Rainfall
21 mm
3.1 wet days
Daylight
12 h 12 min
5:33 AM – 5:42 PM
Cloud cover
40%
4th clearest
Wind
9 km/h
5th windiest
Solar energy
6.6 kWh/m²
Travel score
2.3
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 36°C through the month.

A typical October day in Barão de Grajaú reaches about 36°C in the afternoon and slips back to 26°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 34°C and 38°C. Set against its neighbours, October runs on par with September and about 2°C warmer than November.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13726
23726
33726
43726
53726
63726
73726
83726
93726
103726
113626
123626
133626
143626
153626
163626
173626
183626
193626
203626
213626
223626
233626
243626
253626
263626
273626
283626
293626
303626
313626

How October really feels in Barão de Grajaú

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.

Barão de Grajaú weather by month

How October compares with the rest of the year at a glance. October is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°20022.512.33.0
Feb31° / 23°19321.212.22.9
Mar31° / 23°18823.2123.0
Apr32° / 23°11215.911.93.5
May33° / 24°416.511.73.9
Jun33° / 24°40.811.64.2
Jul34° / 23°30.311.64.2
Aug35° / 24°00.111.83.4
Sep36° / 25°40.5122.5
Oct36° / 26°213.112.22.3
Nov35° / 25°749.212.32.8
Dec33° / 24°11313.712.43.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% 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 24%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28416
38317
48317
58317
68119
78119
88119
98119
107921
117921
127921
137921
147921
157723
167723
177723
187723
197624
207525
217426
227426
237327
247228
257129
267030
277030
286931
296832
306832
316733

Chance of precipitation in October

Any precipitation

Barão de Grajaú gets around 21 mm of rain over 3.1 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 10% and peaks near 19% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
14
24
35
45
55
65
75
86
96
106
117
127
137
148
158
169
179
1810
1911
2011
2112
2213
2314
2415
2515
2616
2717
2817
2918
3019
3119

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 34% of days. Sticky, muggy-or-worse air turns up on roughly 37% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
123640184
223540194
323540194
423440195
523440195
623439195
723439196
823439206
923339207
1023338207
1123238208
1223237209
1323137219
14231372110
15230362210
16229352311
17228352411
18228342512
19227332612
20225322813
21224312914
22223303114
23121303315
24120293416
25119283516
26118273717
27117273818
28116263819
29115263920
30114263920
31013264021

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 06 min at the start of October to 12 h 12 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 5:39 AM to 5:29 AM, and sunset from 5:43 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:395:43
212.15:395:43
312.15:385:43
412.15:385:42
512.15:375:42
612.15:375:42
712.15:365:42
812.15:365:42
912.15:355:42
1012.15:355:42
1112.15:355:42
1212.15:345:42
1312.15:345:42
1412.15:335:42
1512.15:335:42
1612.25:335:42
1712.25:325:42
1812.25:325:42
1912.25:325:42
2012.25:315:42
2112.25:315:42
2212.25:315:42
2312.25:305:42
2412.25:305:42
2512.25:305:42
2612.25:305:42
2712.25:295:42
2812.25:295:42
2912.25:295:42
3012.25:295:43
3112.25:295:43

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.6 kWh/m².

For context, solar energy here swings from a low near 4.85 kWh/m² to a high of 6.76 kWh/m² in September across the year — October's 6.6 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.8Intense
56.8Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in October

Hazard calendar for Barão de Grajaú

In seasonPeak

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

Barão de Grajaú's monsoon runs December–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 Barão de Grajaú?

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

2.3
Sightseeing
12th-best month of the year
5.6
Beach & pool
7th-best month of the year

October is a weaker month for outdoor sightseeing in Barão de Grajaú.

What to pack for Barão de Grajaú in October

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

In October, Barão de Grajaú sees daytime highs around 36°C and nights near 26°C. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

UV index in Barão de Grajaú 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 Barão de Grajaú peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 12UV 15Jul 24UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Air quality in Barão de Grajaú 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 Barão de Grajaú is worst in October — around 16 µg/m³ PM2.5 (moderate), about 4.9× the cleanest month (June, 3 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1815 µg/m³Jun 233 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar10Good
Apr9Good
May6Good
Jun3Good
Jul3Good
Aug6Good
Sep11Good
Oct16Moderate
Nov12Moderate
Dec11Good
Location & terrain

Where is Barão de Grajaú?

Barão de Grajaú sits at 6.8°S, 43.0°W, 119 m above sea level, in Brazil. The nearest listed city is Floriano, 1.0 km away.

Topography around Barão de Grajaú

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

Within 3 km, the terrain around Barão de Grajaú has only modest variations in elevation — a maximum elevation change of 89 m around an average of 131 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 166 m; within 80 km, significant variations in elevation — a maximum elevation change of 390 m.

The land around Barão de Grajaú is covered by artificial surfaces (32%), grassland (28%) and trees (27%) within 3 km, trees (49%) and grassland (32%) within 16 km, and trees (52%) and shrubs (30%) within 80 km.

3 km
89 m
16 km
166 m
80 km
390 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Floriano 1.0 km · Amarante 60 km · Regeneração 69 km · São João dos Patos 80 km · Oeiras 103 km · Água Branca 105 km · Passagem Franca 106 km · Paraibano 112 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 Barão de Grajaú (-6.7564°, -43.0242°, elevation 119 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).