Petrolina weather in January

In January, Petrolina sees average daytime highs of 33°C and overnight lows near 23°C, with 80 mm of rain across 8.7 wet days and about 12.5 hours of daylight. It is the 4th-warmest and 1st-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 24% of the time in January, and the air most often feels humid.

Daylight stretches from about 12 h 30 min at the start of January to 12 h 24 min by month's end. Set against the rest of the year, January is Petrolina's 12th-clearest and 10th-windiest month. For the whole year in context, see Petrolina's year-round climate.

Daytime high
33°
4th warmest
Overnight low
23°
11th coldest
Rainfall
80 mm
8.7 wet days
Daylight
12 h 30 min
5:36 AM – 6:06 PM
Cloud cover
62%
12th clearest
Wind
14 km/h
10th windiest
Solar energy
6.23 kWh/m²
Travel score
3.3
out of 10

Petrolina is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical January day in Petrolina reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 36°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13423
23423
33423
43423
53423
63423
73423
83423
93423
103423
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303323
313323

How January really feels in Petrolina

Once humidity and wind are folded in, January 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Petrolina weather by month

How January compares with the rest of the year at a glance. January is the 4th-warmest and 1st-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of January, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24753
34654
44654
54654
64654
74654
84753
94753
104753
114753
124654
134654
144654
154654
164555
174555
184654
194654
204654
214753
224753
234852
244852
254852
264852
274852
284852
294852
304951
314951

Chance of precipitation in January

Any precipitation

Petrolina gets around 80 mm of rain over 8.7 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 33% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
123
224
324
424
524
625
725
825
926
1026
1127
1228
1329
1429
1530
1631
1732
1833
1933
2033
2133
2233
2332
2432
2532
2632
2731
2831
2931
3031
3131

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the humid band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 52% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1011413512
2011413513
3011413513
4011413413
5110413414
6111413414
7111403315
8111403316
9111403316
10111403217
11111393217
12111393218
13111393218
14011383119
15010383120
16010383121
17010373122
1809373123
1909373124
2008373024
2108373024
2208373024
2308373124
2407383124
2507383224
2606383323
2706383423
2806373522
2905373522
3005373621
3105373821

Wind in January

Winds average 14 km/h in January.

Across January, daily wind ranges from about 13 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
1614light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 30 min at the start of January to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over January. Sunrise moves from 5:29 AM to 5:43 AM, and sunset from 6:01 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:296:01
212.55:296:02
312.55:306:02
412.55:306:03
512.55:316:03
612.55:326:03
712.55:326:04
812.55:336:04
912.55:336:04
1012.55:346:05
1112.55:346:05
1212.55:356:05
1312.55:356:05
1412.55:366:06
1512.55:366:06
1612.55:366:06
1712.55:376:06
1812.55:376:07
1912.55:386:07
2012.55:386:07
2112.55:396:07
2212.55:396:07
2312.55:406:07
2412.55:406:07
2512.45:416:07
2612.45:416:08
2712.45:416:08
2812.45:426:08
2912.45:426:08
3012.45:436:08
3112.45:436:08

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.23 kWh/m².

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 — January's 6.23 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in January

Is January a good time to visit Petrolina?

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

3.3
Sightseeing
9th-best month of the year
6.2
Beach & pool
10th-best month of the year

January 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 January

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

In January, Petrolina sees daytime highs around 33°C and nights near 23°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Petrolina in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (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
January 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).