Penalva weather in October

In October, Penalva sees average daytime highs of 33°C and overnight lows near 25°C, with 19 mm of rain across 3.9 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 33°C through the month. The sky is clear or mostly clear about 45% 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 Penalva's 4th-clearest and 1st-windiest month. For the whole year in context, see Penalva's year-round climate.

Daytime high
33°
1st warmest
Overnight low
25°
11th coldest
Rainfall
19 mm
3.9 wet days
Daylight
12 h 06 min
5:44 AM – 5:48 PM
Cloud cover
47%
4th clearest
Wind
11 km/h
1st windiest
Solar energy
6.13 kWh/m²
Travel score
4.0
out of 10

Penalva is town in Penalva, Maranhão, 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 33°C through the month.

A typical October day in Penalva reaches about 33°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 35°C. Set against its neighbours, October runs on par with September and on par with November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13325
23325
33325
43325
53325
63325
73325
83325
93325
103325
113325
123325
133325
143325
153325
163325
173325
183325
193325
203325
213325
223325
233325
243325
253325
263325
273325
283325
293325
303325
313325

How October really feels in Penalva

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.

Penalva 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
Jan31° / 24°21224.512.22.8
Feb31° / 24°29125.512.12.6
Mar31° / 24°37929.5122.5
Apr30° / 24°40328.211.92.6
May31° / 24°22723.811.93.2
Jun31° / 24°9315.911.84.1
Jul31° / 24°551011.84.9
Aug32° / 24°16411.94.9
Sep33° / 25°122.5124.4
Oct33° / 25°193.912.14.0
Nov33° / 25°427.112.13.8
Dec32° / 25°9513.712.23.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% 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 26%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28317
38218
48218
58119
68020
77921
87921
97822
107723
117624
127624
137525
147426
157426
167426
177327
187327
197327
207228
217228
227129
237129
247030
257030
266832
276832
286832
296733
306634
316535

Chance of precipitation in October

Any precipitation

Penalva gets around 19 mm of rain over 3.9 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 14% and peaks near 18% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
110
210
310
410
510
611
711
811
911
1011
1112
1212
1312
1413
1513
1614
1714
1814
1915
2015
2115
2215
2315
2416
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 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11963
21963
31963
41963
51963
61963
71963
81963
91963
101963
111963
121963
131963
141963
151963
161963
171963
181963
191963
201963
211963
221963
231963
241963
251963
261963
271954
281954
291954
301954
311954

Wind in October

Winds average 11 km/h in October, the windiest month of the year.

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

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 5:49 AM to 5:41 AM, and sunset from 5:51 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:495:51
212.05:485:50
312.05:485:50
412.05:485:50
512.05:475:50
612.05:475:49
712.05:465:49
812.05:465:49
912.15:465:49
1012.15:455:49
1112.15:455:49
1212.15:455:48
1312.15:445:48
1412.15:445:48
1512.15:445:48
1612.15:445:48
1712.15:435:48
1812.15:435:48
1912.15:435:48
2012.15:435:48
2112.15:425:48
2212.15:425:48
2312.15:425:47
2412.15:425:47
2512.15:425:47
2612.15:415:47
2712.15:415:47
2812.15:415:48
2912.15:415:48
3012.15:415:48
3112.15:415:48

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.13 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.22 kWh/m² to a high of 6.13 kWh/m² in October across the year — October's 6.13 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in October

Hazard calendar for Penalva

In seasonPeak

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

Penalva'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 Penalva?

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

4.0
Sightseeing
5th-best month of the year
7.2
Beach & pool
3rd-best month of the year

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

What to pack for Penalva in October

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

In October, Penalva sees daytime highs around 33°C and nights near 25°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Penalva 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 Penalva peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 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 15UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec11Extreme

Air quality in Penalva 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 Penalva is worst in November — around 18 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (June, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1918 µg/m³Jun 199 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar16Moderate
Apr14Moderate
May10Good
Jun9Good
Jul9Good
Aug10Good
Sep9Good
Oct13Moderate
Nov18Moderate
Dec16Moderate
Location & terrain

Where is Penalva?

Penalva sits at 3.3°S, 45.2°W, 17 m above sea level, in Brazil. The nearest listed city is Cajari, 18 km away.

Topography around Penalva

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

Within 3 km, the terrain around Penalva has only modest variations in elevation — a maximum elevation change of 26 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 71 m; within 80 km, only modest variations in elevation — a maximum elevation change of 169 m.

The land around Penalva is covered by water (32%) and grassland (30%) within 3 km, trees (39%), grassland (30%) and wetland (20%) within 16 km, and grassland (49%) and trees (37%) within 80 km.

3 km
26 m
16 km
71 m
80 km
169 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
October weather nearby: Cajari 18 km · Viana 21 km · Monção 24 km · Matinha 27 km · Vitória do Mearim 38 km · Pindaré-Mirim 40 km · Pedro do Rosário 41 km · Arari 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 Penalva (-3.2942°, -45.1736°, elevation 17 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).