Altinópolis weather in December

In December, Altinópolis sees average daytime highs of 28°C and overnight lows near 20°C, with 266 mm of rain across 24.6 wet days and about 13.3 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 10% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 12 min at the start of December to 13 h 18 min by month's end. Set against the rest of the year, December is Altinópolis's 11th-clearest and 7th-windiest month. For the whole year in context, see Altinópolis's year-round climate.

Daytime high
28°
7th warmest
Overnight low
20°
10th coldest
Rainfall
266 mm
24.6 wet days
Daylight
13 h 18 min
6:28 AM – 7:44 PM
Cloud cover
76%
11th clearest
Wind
8 km/h
7th windiest
Solar energy
5.73 kWh/m²
Travel score
4.2
out of 10

Altinópolis is 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 28°C through the month.

A typical December day in Altinópolis reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°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)
12819
22819
32819
42819
52819
62819
72820
82820
92820
102820
112820
122820
132820
142820
152820
162820
172820
182820
192820
202820
212820
222820
232820
242820
252820
262820
272820
282820
292820
302820
312820

Altinópolis weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°29123.813.14.1
Feb28° / 20°20919.712.74.2
Mar28° / 19°18319.912.14.8
Apr27° / 18°7510.111.56.5
May25° / 15°446.2117.6
Jun25° / 14°262.910.78.4
Jul25° / 14°172.510.98.5
Aug27° / 15°183.111.38.0
Sep29° / 17°738.111.96.1
Oct29° / 19°12114.212.55.0
Nov28° / 19°18818.5134.8
Dec28° / 20°26624.613.34.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% 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 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
22872
32872
42674
52674
62674
72674
82476
92476
102476
112575
122575
132674
142674
152674
162773
172674
182674
192674
202674
212773
222773
232773
242674
252674
262575
272377
282377
292278
302278
312377

Chance of precipitation in December

Any precipitation

Altinópolis gets around 266 mm of rain over 24.6 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 78% and peaks near 82% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
169
271
372
473
574
675
775
876
976
1077
1177
1277
1378
1478
1578
1678
1779
1879
1979
2080
2180
2281
2381
2482
2582
2682
2782
2882
2982
3082
3181

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 74% of days. Sticky, muggy-or-worse air turns up on roughly 75% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11831591
20730621
30628651
40627661
50526681
60525691
70424711
80423721
90422731
100321751
110321751
120321751
130321751
140321760
150321760
160221770
170221770
180222760
190222760
200222760
210222760
220222760
230122770
240121780
250121780
260120781
270120781
280119791
290119791
300119791
310118801

Wind in December

Winds average 8 km/h in December.

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

051015151015202531
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
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 12 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 6 minutes over December. Sunrise moves from 6:24 AM to 6:35 AM, and sunset from 7:35 PM to 7:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:247:35
213.26:247:35
313.26:247:36
413.26:247:37
513.26:247:37
613.26:247:38
713.26:257:39
813.26:257:39
913.26:257:40
1013.26:257:40
1113.36:267:41
1213.36:267:42
1313.36:267:42
1413.36:277:43
1513.36:277:43
1613.36:287:44
1713.36:287:44
1813.36:287:45
1913.36:297:45
2013.36:297:46
2113.36:307:46
2213.36:307:47
2313.36:317:47
2413.36:317:48
2513.36:327:48
2613.36:327:49
2713.36:337:49
2813.36:337:49
2913.36:347:50
3013.36:347:50
3113.36:357:51

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.73 kWh/m².

For context, solar energy here swings from a low near 3.97 kWh/m² to a high of 6.01 kWh/m² in October across the year — December's 5.73 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.6Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.6Bright
315.6Bright
Planning a trip in December

Hazard calendar for Altinópolis

In seasonPeak

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

Altinópolis'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 Altinópolis?

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

4.2
Sightseeing
10th-best month of the year
4.5
Beach & pool
12th-best month of the year

December is a reasonable time to visit Altinópolis for sightseeing.

What to pack for Altinópolis in December

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

In December, Altinópolis sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Altinópolis 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 Altinópolis peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 15Jun 23UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep10Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Altinópolis 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 Altinópolis is worst in September — around 43 µg/m³ PM2.5 (poor), about 5.2× the cleanest month (November, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1540 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr11Good
May12Good
Jun11Good
Jul11Good
Aug20Moderate
Sep43Poor
Oct15Moderate
Nov8Good
Dec9Good
Location & terrain

Where is Altinópolis?

Altinópolis sits at 21.0°S, 47.4°W, 918 m above sea level, in Brazil. The nearest listed city is Batatais, 27 km away.

Topography around Altinópolis

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

Within 3 km, the terrain around Altinópolis has significant variations in elevation — a maximum elevation change of 357 m around an average of 852 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 550 m; within 80 km, large variations in elevation — a maximum elevation change of 803 m.

The land around Altinópolis is covered by trees (63%) within 3 km, trees (53%) and cropland (34%) within 16 km, and cropland (44%) and trees (36%) within 80 km.

3 km
357 m
16 km
550 m
80 km
803 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Batatais 27 km · Cajuru 29 km · Brodowski 30 km · Serrana 31 km · Jardinópolis 40 km · São Sebastião do Paraíso 42 km · Monte Santo de Minas 45 km · Ribeirão Preto 48 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 Altinópolis (-21.0256°, -47.3739°, elevation 918 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).