Otacílio Costa weather in December

In December, Otacílio Costa sees average daytime highs of 26°C and overnight lows near 16°C, with 191 mm of rain across 18.4 wet days and about 13.7 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 15% of the time in December, and the air most often feels humid.

Daylight stretches from about 13 h 36 min at the start of December to 13 h 42 min by month's end. Set against the rest of the year, December is Otacílio Costa's 9th-clearest and 4th-windiest month. For the whole year in context, see Otacílio Costa's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
16°
10th coldest
Rainfall
191 mm
18.4 wet days
Daylight
13 h 42 min
6:25 AM – 8:08 PM
Cloud cover
72%
9th clearest
Wind
8 km/h
4th windiest
Solar energy
5.74 kWh/m²
Travel score
5.3
out of 10

Otacílio Costa is human settlement in Brazil.

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical December day in Otacílio Costa reaches about 26°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 29°C. Set against its neighbours, December runs about 2°C warmer than November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12515
22515
32515
42515
52515
62516
72516
82516
92516
102516
112516
122516
132516
142516
152616
162616
172616
182616
192616
202616
212617
222617
232617
242617
252617
262617
272617
282617
292617
302617
312617

Otacílio Costa weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 17°22921.713.54.8
Feb26° / 17°20119.6134.8
Mar25° / 16°14417.812.25.5
Apr22° / 14°10411.511.46.3
May19° / 10°12910.610.75.9
Jun17° / 12910.610.35.5
Jul17° / 12010.610.45.4
Aug19° / 11210116.1
Sep20° / 11°17813.911.85.6
Oct22° / 13°20017.712.75.2
Nov24° / 14°1601713.45.6
Dec26° / 16°19118.413.75.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% 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 70%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33367
43367
53268
63268
73268
83268
93268
103268
113268
123268
133169
143070
153070
163070
173070
182971
192971
202971
212872
222872
232971
242872
252872
262872
272773
282773
292674
302674
312674

Chance of precipitation in December

Any precipitation

Otacílio Costa gets around 191 mm of rain over 18.4 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 60% and peaks near 66% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
157
257
357
457
557
657
757
857
958
1058
1158
1259
1359
1459
1560
1660
1760
1861
1961
2061
2161
2262
2362
2462
2563
2663
2764
2864
2965
3065
3166

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1143042140
2133043150
3132943150
4122843160
5122744170
6122744180
7112644190
8112544200
9112443220
10112343230
11102243240
12102243250
1392143270
1492043280
1592042300
1681941310
1781940320
1881939340
1971938350
2071938360
2161937380
2261936390
2351936400
2451835410
2551835421
2641834431
2741833441
2841833451
2941833451
3041732461
3141732461

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 36 min at the start of December to 13 h 42 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 6:22 AM to 6:32 AM, and sunset from 7:59 PM to 8:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:227:59
213.66:227:59
313.66:228:00
413.66:228:01
513.76:228:01
613.76:228:02
713.76:228:03
813.76:238:03
913.76:238:04
1013.76:238:05
1113.76:238:05
1213.76:248:06
1313.76:248:07
1413.76:248:07
1513.76:248:08
1613.76:258:08
1713.76:258:09
1813.76:268:10
1913.76:268:10
2013.76:268:11
2113.76:278:11
2213.76:278:12
2313.76:288:12
2413.76:288:13
2513.76:298:13
2613.76:298:13
2713.76:308:14
2813.76:308:14
2913.76:318:14
3013.76:328:15
3113.76:328:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.74 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.52 kWh/m² to a high of 5.74 kWh/m² in December across the year — December's 5.74 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Is December a good time to visit Otacílio Costa?

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

5.3
Sightseeing
9th-best month of the year
4.9
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Otacílio Costa for sightseeing.

What to pack for Otacílio Costa in December

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

In December, Otacílio Costa sees daytime highs around 26°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 18 days see rain.

rain gearlight clothessun protection

UV index in Otacílio Costa 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 Otacílio Costa peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 19UV 14Jun 22UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5Moderate
Aug6High
Sep8Very high
Oct8Very high
Nov12Extreme
Dec13Extreme

Air quality in Otacílio Costa 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 Otacílio Costa is worst in August — around 16 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 2016 µg/m³Mar 156 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar6Good
Apr7Good
May6Good
Jun6Good
Jul9Good
Aug16Moderate
Sep14Moderate
Oct8Good
Nov7Good
Dec7Good
Location & terrain

Where is Otacílio Costa?

Otacílio Costa sits at 27.5°S, 50.1°W, 877 m above sea level, in Brazil. The nearest listed city is Correia Pinto, 26 km away.

Topography around Otacílio Costa

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

Within 3 km, the terrain around Otacílio Costa has only modest variations in elevation — a maximum elevation change of 73 m around an average of 852 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 640 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,635 m.

The land around Otacílio Costa is covered by trees (68%) within 3 km, trees (72%) within 16 km, and trees (65%) and grassland (24%) within 80 km.

3 km
73 m
16 km
640 m
80 km
1,635 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Correia Pinto 26 km · Pouso Redondo 31 km · Lages 42 km · Taió 43 km · Curitibanos 51 km · Ituporanga 52 km · Rio do Sul 56 km · Santa Cecília 65 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 Otacílio Costa (-27.4831°, -50.1219°, elevation 877 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).