Jacutinga weather in December

In December, Jacutinga sees average daytime highs of 27°C and overnight lows near 19°C, with 225 mm of rain across 22.6 wet days and about 13.3 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 14% of the time in December, and the air most often feels humid.

Daylight stretches from about 13 h 18 min at the start of December to 13 h 18 min by month's end. Set against the rest of the year, December is Jacutinga's 11th-clearest and 7th-windiest month. For the whole year in context, see Jacutinga's year-round climate.

Daytime high
27°
4th warmest
Overnight low
19°
10th coldest
Rainfall
225 mm
22.6 wet days
Daylight
13 h 24 min
6:22 AM – 7:43 PM
Cloud cover
72%
11th clearest
Wind
7 km/h
7th windiest
Solar energy
5.65 kWh/m²
Travel score
4.6
out of 10

Jacutinga 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 27°C through the month.

A typical December day in Jacutinga reaches about 27°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°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)
12718
22718
32718
42718
52718
62718
72718
82719
92719
102719
112719
122719
132719
142719
152719
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

Jacutinga weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°2602413.24.3
Feb27° / 19°19919.912.84.6
Mar27° / 18°16519.212.25.2
Apr26° / 16°689.511.56.9
May23° / 14°516.110.97.7
Jun23° / 13°32410.78.1
Jul23° / 12°273.310.88.4
Aug25° / 13°263.711.28.4
Sep27° / 15°748.411.97.0
Oct27° / 17°11214.112.55.9
Nov27° / 18°16618.113.15.2
Dec27° / 19°22522.613.34.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 69%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23565
33565
43565
53367
63367
73367
83169
93169
103169
113169
123169
133169
143070
153070
163169
173169
183169
193169
203268
213169
223268
233268
243169
253169
263070
272971
282872
292773
302773
312773

Chance of precipitation in December

Any precipitation

Jacutinga gets around 225 mm of rain over 22.6 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 73% and peaks near 77% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
164
265
366
467
568
668
769
870
971
1071
1172
1272
1373
1473
1574
1674
1774
1875
1975
2075
2175
2275
2376
2476
2576
2676
2777
2877
2977
3077
3177

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 47% of days. Sticky, muggy-or-worse air turns up on roughly 42% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12204929
22194931
31174932
41164834
51154836
61144738
71134739
81134640
91124642
101114543
111114543
120104544
130104544
140104644
150104644
16094644
17094744
18094744
19094843
20094843
21084843
22084943
23084943
24074944
25074844
26074845
27074746
28064747
29064647
30064648
31064549

Wind in December

Winds average 7 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
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 6:18 AM to 6:29 AM, and sunset from 7:34 PM to 7:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:187:34
213.36:187:35
313.36:187:35
413.36:197:36
513.36:197:37
613.36:197:37
713.36:197:38
813.36:197:39
913.36:207:39
1013.36:207:40
1113.36:207:40
1213.36:217:41
1313.36:217:42
1413.46:217:42
1513.46:227:43
1613.46:227:43
1713.46:227:44
1813.46:237:44
1913.46:237:45
2013.46:247:45
2113.46:247:46
2213.46:247:46
2313.46:257:47
2413.46:257:47
2513.46:267:48
2613.46:267:48
2713.46:277:49
2813.46:287:49
2913.46:287:49
3013.46:297:50
3113.36:297:50

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.65 kWh/m².

For context, solar energy here swings from a low near 3.76 kWh/m² to a high of 5.74 kWh/m² in October across the year — December's 5.65 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
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in December

Hazard calendar for Jacutinga

In seasonPeak

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

Jacutinga's monsoon runs November–March, when most of the year's rain falls.

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

Is December a good time to visit Jacutinga?

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

4.6
Sightseeing
10th-best month of the year
4.7
Beach & pool
11th-best month of the year

December is a reasonable time to visit Jacutinga for sightseeing.

What to pack for Jacutinga in December

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

In December, Jacutinga sees daytime highs around 27°C and nights near 19°C. Pack rain gear. Worth having: light clothes and sun protection. About 23 days see rain.

rain gearlight clothessun protection

UV index in Jacutinga in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Jacutinga peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 24UV 15Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Jacutinga 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 Jacutinga is worst in September — around 27 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 15 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1227 µg/m³Dec 1515 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar18Moderate
Apr21Moderate
May24Moderate
Jun25Moderate
Jul26Moderate
Aug25Moderate
Sep27Moderate
Oct20Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Jacutinga?

Jacutinga sits at 22.3°S, 46.6°W, 842 m above sea level, in Brazil. The nearest listed city is Monte Sião, 17 km away.

Topography around Jacutinga

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

Within 3 km, the terrain around Jacutinga has significant variations in elevation — a maximum elevation change of 267 m around an average of 857 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 798 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,360 m.

The land around Jacutinga is covered by grassland (45%) and trees (28%) within 3 km, trees (48%) and grassland (45%) within 16 km, and grassland (40%), trees (35%) and cropland (22%) within 80 km.

3 km
267 m
16 km
798 m
80 km
1,360 m
treesgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Monte Sião 17 km · Espírito Santo do Pinhal 17 km · Águas de Lindóia 21 km · Andradas 25 km · Ouro Fino 25 km · Itapira 27 km · Socorro 35 km · Mogi Guaçu 35 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 Jacutinga (-22.2856°, -46.6122°, elevation 842 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).