Sertânia weather in January

In January, Sertânia sees average daytime highs of 33°C and overnight lows near 22°C, with 45 mm of rain across 6.3 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 4th-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 23% 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 Sertânia's 10th-clearest and 8th-windiest month. For the whole year in context, see Sertânia's year-round climate.

Daytime high
33°
4th warmest
Overnight low
22°
11th coldest
Rainfall
45 mm
6.3 wet days
Daylight
12 h 24 min
5:26 AM – 5:51 PM
Cloud cover
62%
10th clearest
Wind
14 km/h
8th windiest
Solar energy
6.29 kWh/m²
Travel score
3.8
out of 10

Sertânia 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 Sertânia reaches about 33°C in the afternoon and slips back to 22°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°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)
13321
23321
33321
43321
53321
63321
73321
83322
93322
103322
113322
123322
133322
143322
153322
163322
173322
183322
193322
203322
213322
223322
233322
243322
253321
263321
273321
283321
293321
303321
313321

How January really feels in Sertânia

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.

Sertânia weather by month

How January compares with the rest of the year at a glance. January is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°456.312.43.8
Feb33° / 21°506.912.33.8
Mar32° / 22°669.112.13.9
Apr31° / 21°588.411.84.3
May30° / 20°407.711.65.2
Jun29° / 19°225.211.56.2
Jul28° / 19°143.911.66.5
Aug30° / 18°71.611.76.2
Sep32° / 19°20.7125.2
Oct33° / 20°50.812.24.3
Nov33° / 21°9112.44.0
Dec33° / 21°14212.53.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 25% of January, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35347
45248
55248
65149
75149
85050
95050
104852
114753
124654
134555
144456
154456
164357
174456
184456
194456
204456
214555
224654
234654
244753
254753
264852
274852
284951
294951
304951
314951

Chance of precipitation in January

Any precipitation

Sertânia gets around 45 mm of rain over 6.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 20% and peaks near 25% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
112
213
313
414
514
614
715
815
916
1017
1118
1219
1320
1421
1522
1623
1723
1824
1924
2025
2125
2225
2325
2425
2524
2624
2723
2823
2922
3021
3120

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11765180
21665190
31665190
41565200
51564210
61564210
71464220
81462231
91461241
101461241
111460251
121459261
131457281
141456291
151356301
161354312
171352332
181352332
191351342
201350352
211349362
221349362
231349362
241348372
251248372
261248372
271249372
281249372
291149372
301151362
311151362

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 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light 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 5:18 AM to 5:32 AM, and sunset from 5:46 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:185:46
212.55:195:46
312.55:195:47
412.55:205:47
512.55:205:48
612.55:215:48
712.55:215:48
812.45:225:49
912.45:225:49
1012.45:235:49
1112.45:235:50
1212.45:245:50
1312.45:245:50
1412.45:255:51
1512.45:255:51
1612.45:265:51
1712.45:265:51
1812.45:275:51
1912.45:275:52
2012.45:275:52
2112.45:285:52
2212.45:285:52
2312.45:295:52
2412.45:295:53
2512.45:305:53
2612.45:305:53
2712.45:305:53
2812.45:315:53
2912.45:315:53
3012.45:315:53
3112.45:325:53

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.29 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 6.98 kWh/m² in October across the year — January's 6.29 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.4Intense
Planning a trip in January

Is January a good time to visit Sertânia?

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

3.8
Sightseeing
11th-best month of the year
6.7
Beach & pool
9th-best month of the year

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

What to pack for Sertânia in January

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

In January, Sertânia sees daytime highs around 33°C and nights near 22°C. Pack light clothes and sun protection. About 6 days see rain.

light clothessun protection

UV index in Sertânia 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 Sertânia peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 13UV 15Jun 22UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep13Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Sertânia?

Sertânia sits at 8.1°S, 37.3°W, 558 m above sea level, in Brazil. The nearest listed city is Monteiro, 26 km away.

Topography around Sertânia

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

Within 3 km, the terrain around Sertânia has only modest variations in elevation — a maximum elevation change of 111 m around an average of 571 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 568 m; within 80 km, large variations in elevation — a maximum elevation change of 792 m.

The land around Sertânia is covered by shrubs (47%) and grassland (36%) within 3 km, shrubs (71%) and grassland (24%) within 16 km, and shrubs (69%) and grassland (22%) within 80 km.

3 km
111 m
16 km
568 m
80 km
792 m
treesshrubsgrasslandcroplandartificial surfaces
January weather nearby: Monteiro 26 km · Custódia 42 km · Arcoverde 45 km · Afogados da Ingazeira 55 km · Pedra 59 km · Sumé 62 km · Tabira 62 km · Buíque 62 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 Sertânia (-8.0736°, -37.2644°, elevation 558 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).