Petrolina weather in October

In October, Petrolina sees average daytime highs of 35°C and overnight lows near 22°C, with 11 mm of rain across 1.5 wet days and about 12.2 hours of daylight. It is the 1st-warmest and 7th-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 53% 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 18 min by month's end. Set against the rest of the year, October is Petrolina's 2nd-clearest and 5th-windiest month. For the whole year in context, see Petrolina's year-round climate.

Daytime high
35°
1st warmest
Overnight low
22°
6th coldest
Rainfall
11 mm
1.5 wet days
Daylight
12 h 12 min
5:21 AM – 5:33 PM
Cloud cover
40%
2nd clearest
Wind
18 km/h
5th windiest
Solar energy
6.81 kWh/m²
Travel score
3.4
out of 10

Petrolina 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 Petrolina reaches about 35°C in the afternoon and slips back to 22°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 36°C. Set against its neighbours, October runs about 2°C warmer than September and on par with November.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13421
23421
33422
43422
53422
63422
73422
83422
93422
103422
113422
123422
133422
143522
153522
163522
173522
183522
193522
203522
213522
223522
233522
243522
253523
263523
273523
283523
293523
303523
313523

How October really feels in Petrolina

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.

Petrolina weather by month

How October compares with the rest of the year at a glance. October is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°808.712.53.3
Feb33° / 23°669.412.33.3
Mar33° / 23°7910.112.13.4
Apr33° / 23°32611.84.0
May32° / 22°10211.64.9
Jun30° / 21°30.711.55.8
Jul30° / 20°30.411.56.2
Aug31° / 20°10.211.75.7
Sep33° / 21°10.111.94.4
Oct35° / 22°111.512.23.4
Nov34° / 23°323.912.43.2
Dec34° / 23°506.312.53.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% 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 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17921
27921
37822
47723
57723
67723
77624
87624
97525
107426
117327
127327
137327
147327
157327
167327
177327
187327
197228
207228
217228
227129
237030
247030
256931
266931
276832
286832
296634
306634
316634

Chance of precipitation in October

Any precipitation

Petrolina gets around 11 mm of rain over 1.5 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 5% and peaks near 8% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
12
22
32
42
53
63
73
83
94
104
114
124
134
145
155
165
175
185
195
205
216
226
236
246
256
267
277
287
297
308
318

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
12435140
22444950
32444951
42444851
52444861
62444761
72444761
81444761
91444772
101434772
111434772
121424782
131424782
142414782
152404792
162404792
172394892
1823848102
1923748102
2023648113
2123549113
2223449123
2333349123
2433249133
2533150143
2633050143
2733050153
2822951153
2922851163
3022851163
3122751173

Wind in October

Winds average 18 km/h in October.

Across October, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

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 5:29 AM to 5:16 AM, and sunset from 5:33 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:295:33
212.15:285:33
312.15:275:33
412.15:275:33
512.15:265:33
612.15:265:33
712.15:255:33
812.15:255:33
912.25:245:33
1012.25:245:33
1112.25:235:33
1212.25:235:33
1312.25:225:33
1412.25:225:33
1512.25:215:33
1612.25:215:33
1712.25:205:33
1812.25:205:34
1912.25:195:34
2012.25:195:34
2112.35:195:34
2212.35:185:34
2312.35:185:34
2412.35:185:34
2512.35:175:34
2612.35:175:35
2712.35:175:35
2812.35:165:35
2912.35:165:35
3012.35:165:35
3112.35:165:35

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.81 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.1 kWh/m² to a high of 6.81 kWh/m² in October across the year — October's 6.81 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
66.8Intense
76.8Intense
86.8Intense
96.8Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
316.7Intense
Planning a trip in October

Is October a good time to visit Petrolina?

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

3.4
Sightseeing
7th-best month of the year
7.0
Beach & pool
6th-best month of the year

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

What to pack for Petrolina in October

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

In October, Petrolina sees daytime highs around 35°C and nights near 22°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Petrolina in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Petrolina peaks around February 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 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 22UV 15Jul 13UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun10Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Petrolina?

Petrolina sits at 9.4°S, 40.5°W, 383 m above sea level, in Brazil. The nearest listed city is Juazeiro, 1.0 km away.

Topography around Petrolina

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

Within 3 km, the terrain around Petrolina has only modest variations in elevation — a maximum elevation change of 33 m around an average of 372 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 134 m; within 80 km, large variations in elevation — a maximum elevation change of 668 m.

The land around Petrolina is covered by artificial surfaces (61%) within 3 km, shrubs (37%) and grassland (30%) within 16 km, and shrubs (78%) within 80 km.

3 km
33 m
16 km
134 m
80 km
668 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Juazeiro 1.0 km · Sobradinho 34 km · Lagoa Grande 51 km · Casa Nova 58 km · Curaçá 79 km · Santa Maria da Boa Vista 99 km · Jaguarari 102 km · Dormentes 110 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 Petrolina (-9.3986°, -40.5008°, elevation 383 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).