São João do Piauí weather in October

In October, São João do Piauí sees average daytime highs of 36°C and overnight lows near 25°C, with 18 mm of rain across 2.1 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 58% of the time in October, and the air most often feels comfortable.

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 São João do Piauí's 4th-clearest and 5th-windiest month. For the whole year in context, see São João do Piauí's year-round climate.

Daytime high
36°
1st warmest
Overnight low
25°
11th coldest
Rainfall
18 mm
2.1 wet days
Daylight
12 h 12 min
5:28 AM – 5:40 PM
Cloud cover
38%
4th clearest
Wind
13 km/h
5th windiest
Solar energy
6.8 kWh/m²
Travel score
2.4
out of 10

São João do Piauí is 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 36°C through the month.

A typical October day in São João do Piauí reaches about 36°C in the afternoon and slips back to 25°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 1°C warmer than November.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13625
23625
33625
43625
53625
63625
73625
83625
93625
103625
113625
123625
133625
143625
153625
163625
173625
183625
193625
203625
213625
223625
233625
243625
253625
263625
273625
283625
293625
303625
313625

How October really feels in São João do Piauí

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.

São João do Piauí 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° / 24°14716.512.43.2
Feb32° / 23°1391512.33.4
Mar32° / 23°13916.312.13.5
Apr32° / 23°749.911.83.8
May33° / 24°22311.64.0
Jun33° / 23°10.311.54.6
Jul33° / 22°10.211.64.6
Aug34° / 22°0011.73.8
Sep36° / 24°20.2122.8
Oct36° / 25°182.112.22.4
Nov35° / 25°556.312.42.8
Dec34° / 25°759.812.53.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 20% of October, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38614
48515
58416
68416
78317
88317
98218
108119
118119
128119
138020
148020
158020
167921
177921
187822
197723
207723
217723
227525
237525
247426
257327
267228
277129
287030
296931
306832
316832

Chance of precipitation in October

Any precipitation

São João do Piauí gets around 18 mm of rain over 2.1 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 7% and peaks near 13% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
13
23
33
43
53
63
74
84
94
105
115
126
136
146
156
167
177
187
198
208
218
229
239
249
2510
2610
2711
2811
2912
3012
3113

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the comfortable band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
110533340
210513441
310513441
410513441
510503451
610503451
710493452
810483452
910483462
1010473463
1110463463
1210463474
1310453474
1410453484
1510443485
1610433485
179433495
1894233106
1994133106
2094033116
2193933127
2283833137
2383734137
2483634148
2573534158
2673534168
2773434178
2863334189
2963333199
3063233209
3163233219

Wind in October

Winds average 13 km/h in October.

Across October, daily wind ranges from about 11 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2312light breeze
2412light breeze
2512light breeze
2612calm
2712calm
2812calm
2912calm
3012calm
3111calm

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 5:36 AM to 5:24 AM, and sunset from 5:40 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:365:40
212.15:355:40
312.15:355:40
412.15:345:40
512.15:345:40
612.15:335:40
712.15:335:40
812.15:325:40
912.15:325:40
1012.15:315:40
1112.25:315:40
1212.25:305:40
1312.25:305:40
1412.25:295:40
1512.25:295:40
1612.25:285:40
1712.25:285:40
1812.25:285:40
1912.25:275:40
2012.25:275:40
2112.25:265:40
2212.25:265:40
2312.25:265:40
2412.25:255:40
2512.35:255:40
2612.35:255:41
2712.35:255:41
2812.35:245:41
2912.35:245:41
3012.35:245:41
3112.35:245:41

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.8 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.81 kWh/m² to a high of 6.8 kWh/m² in October across the year — October's 6.8 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
106.9Intense
116.9Intense
126.9Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.6Intense
266.6Intense
276.6Intense
286.6Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in October

Hazard calendar for São João do Piauí

In seasonPeak

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

São João do Piauí's rainy season runs December–April, when most of the year's rain falls.

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

Is October a good time to visit São João do Piauí?

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

2.4
Sightseeing
12th-best month of the year
5.8
Beach & pool
9th-best month of the year

October is a weaker month for outdoor sightseeing in São João do Piauí.

What to pack for São João do Piauí in October

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

In October, São João do Piauí sees daytime highs around 36°C and nights near 25°C. Pack light clothes and sun protection.

light clothessun protection

UV index in São João do Piauí 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 São João do Piauí peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 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 11UV 15Jul 14UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is São João do Piauí?

São João do Piauí sits at 8.4°S, 42.2°W, 219 m above sea level, in Brazil. The nearest listed city is Canto do Buriti, 82 km away.

Topography around São João do Piauí

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

Within 3 km, the terrain around São João do Piauí has only modest variations in elevation — a maximum elevation change of 90 m around an average of 227 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 204 m; within 80 km, significant variations in elevation — a maximum elevation change of 518 m.

The land around São João do Piauí is covered by shrubs (49%) and grassland (28%) within 3 km, shrubs (88%) within 16 km, and shrubs (94%) within 80 km.

3 km
90 m
16 km
204 m
80 km
518 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Canto do Buriti 82 km · São Raimundo Nonato 88 km · Paulistana 123 km · Afrânio 138 km · Remanso 142 km · Oeiras 149 km · Campo Alegre de Lourdes 154 km · Sento Sé 159 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 João do Piauí (-8.3581°, -42.2467°, elevation 219 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).