Sertanópolis weather in December

In December, Sertanópolis sees average daytime highs of 31°C and overnight lows near 22°C, with 149 mm of rain across 16.3 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 24% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 13 h 18 min at the start of December to 13 h 24 min by month's end. Set against the rest of the year, December is Sertanópolis's 11th-clearest and 6th-windiest month. For the whole year in context, see Sertanópolis's year-round climate.

Daytime high
31°
1st warmest
Overnight low
22°
10th coldest
Rainfall
149 mm
16.3 wet days
Daylight
13 h 24 min
6:38 AM – 8:03 PM
Cloud cover
66%
11th clearest
Wind
9 km/h
6th windiest
Solar energy
6.09 kWh/m²
Travel score
3.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical December day in Sertanópolis reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 34°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63121
73121
83121
93121
103121
113121
123121
133121
143121
153121
163122
173122
183122
193122
203122
213122
223122
233122
243122
253122
263122
273122
283122
293122
303122
313122

How December really feels in Sertanópolis

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

Sertanópolis weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°19619.113.33.7
Feb31° / 22°1501712.83.8
Mar31° / 21°10213.112.24.4
Apr29° / 19°626.211.56.0
May26° / 16°737.110.97.3
Jun25° / 15°64610.67.8
Jul25° / 14°424.610.78.0
Aug27° / 15°444.311.27.6
Sep29° / 17°88811.96.0
Oct30° / 19°11511.512.54.9
Nov31° / 20°13012.413.14.4
Dec31° / 22°14916.313.43.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
23862
33862
43763
53763
63763
73664
83763
93862
103862
113862
123961
133961
143961
154060
164060
174258
184258
194258
204357
214258
224258
234060
244060
254060
263862
273862
283763
293664
303664
313664

Chance of precipitation in December

Any precipitation

Sertanópolis gets around 149 mm of rain over 16.3 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 52% and peaks near 59% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
145
246
347
448
548
649
750
850
951
1051
1151
1252
1352
1452
1552
1652
1752
1853
1953
2053
2154
2254
2354
2455
2556
2656
2757
2857
2958
3059
3159

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 81% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1182038320
2171938340
3171938350
4161838360
5161838380
6151737390
7151737400
8151736410
9151736420
10151635430
11041635440
12041635440
13041635450
14041634450
15041634460
16041534460
17041534460
18041534470
19031534480
20031534480
21031434490
22031434500
23021333520
24021233530
25011233540
26011133550
27011132560
28011032570
29001032571
30001031581
3100931591

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 18 min at the start of December to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 6:34 AM to 6:45 AM, and sunset from 7:53 PM to 8:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:347:53
213.36:357:54
313.36:357:55
413.36:357:55
513.46:357:56
613.46:357:57
713.46:357:57
813.46:367:58
913.46:367:59
1013.46:367:59
1113.46:368:00
1213.46:378:00
1313.46:378:01
1413.46:378:01
1513.46:388:02
1613.46:388:03
1713.46:388:03
1813.46:398:04
1913.46:398:04
2013.46:408:05
2113.46:408:05
2213.46:418:06
2313.46:418:06
2413.46:428:07
2513.46:428:07
2613.46:438:07
2713.46:438:08
2813.46:448:08
2913.46:448:09
3013.46:458:09
3113.46:458:09

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.09 kWh/m².

For context, solar energy here swings from a low near 3.4 kWh/m² to a high of 6.1 kWh/m² in November across the year — December's 6.09 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.0Intense
286.0Intense
296.0Intense
306.0Bright
316.0Bright
Planning a trip in December

Hazard calendar for Sertanópolis

In seasonPeak

In December, Sertanópolis sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Sertanópolis's rainy season runs October–March, when most of the year's rain falls.

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

Is December a good time to visit Sertanópolis?

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

3.9
Sightseeing
10th-best month of the year
5.7
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Sertanópolis.

What to pack for Sertanópolis in December

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

In December, Sertanópolis sees daytime highs around 31°C and nights near 22°C. Pack light clothes, rain gear and sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Sertanópolis in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Sertanópolis peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 21UV 15Jul 13UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug7Very high
Sep5High
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Sertanópolis in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Sertanópolis is worst in September — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1620 µg/m³Nov 228 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr10Good
May11Good
Jun11Good
Jul12Good
Aug14Moderate
Sep21Moderate
Oct14Moderate
Nov8Good
Dec9Good
Location & terrain

Where is Sertanópolis?

Sertanópolis sits at 23.1°S, 51.0°W, 403 m above sea level, in Brazil. The nearest listed city is Ibiporã, 23 km away.

Topography around Sertanópolis

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

Within 3 km, the terrain around Sertanópolis has only modest variations in elevation — a maximum elevation change of 131 m around an average of 378 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 304 m; within 80 km, large variations in elevation — a maximum elevation change of 814 m.

The land around Sertanópolis is covered by cropland (70%) within 3 km, cropland (65%) within 16 km, and cropland (65%) within 80 km.

3 km
131 m
16 km
304 m
80 km
814 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Ibiporã 23 km · Londrina 31 km · Cambé 35 km · Cornélio Procópio 42 km · Rolândia 44 km · Jaguapitã 51 km · Arapongas 56 km · Astorga 67 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 Sertanópolis (-23.0586°, -51.0364°, elevation 403 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).