Monte Alto weather in December

In December, Monte Alto sees average daytime highs of 29°C and overnight lows near 21°C, with 223 mm of rain across 22.4 wet days and about 13.3 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 14% 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 Monte Alto's 11th-clearest and 8th-windiest month. For the whole year in context, see Monte Alto's year-round climate.

Daytime high
29°
5th warmest
Overnight low
21°
10th coldest
Rainfall
223 mm
22.4 wet days
Daylight
13 h 18 min
6:32 AM – 7:49 PM
Cloud cover
72%
11th clearest
Wind
8 km/h
8th windiest
Solar energy
5.81 kWh/m²
Travel score
3.7
out of 10

Monte Alto 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 29°C through the month.

A typical December day in Monte Alto reaches about 29°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°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)
13021
23021
33021
43021
53021
62921
72921
82921
92921
102921
112921
122921
132921
142921
152921
162921
172921
182921
192921
203021
213021
223021
233021
243021
253021
262921
272921
282921
292921
302921
312921

Monte Alto weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°2672313.13.6
Feb30° / 21°19119.512.73.8
Mar29° / 21°17119.212.24.2
Apr29° / 19°659.111.55.9
May26° / 16°455.6117.5
Jun26° / 15°273.310.78.0
Jul27° / 15°202.510.88.2
Aug29° / 16°222.911.37.0
Sep30° / 18°66711.95.4
Oct31° / 20°11913.112.54.4
Nov30° / 20°16917.3134.1
Dec29° / 21°22322.413.33.7

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 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33169
43169
53070
62971
72971
82971
92971
102971
112872
122971
132971
143070
153169
163169
173169
183367
193367
203367
213367
223367
233367
243268
253070
263070
273070
282872
292872
302872
312674

Chance of precipitation in December

Any precipitation

Monte Alto gets around 223 mm of rain over 22.4 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 72% and peaks near 75% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
164
266
367
468
569
670
770
871
971
1071
1172
1272
1372
1472
1572
1672
1772
1872
1972
2072
2172
2273
2373
2474
2574
2674
2775
2875
2975
3075
3174

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 89% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
115195619
215185521
314175622
414165524
513155625
613145626
713135726
812125827
902125927
1001116127
1101116127
1201106227
1301106227
1400106327
150096526
160096526
170096526
180096625
190086725
200086725
210086725
220076726
230076726
240066727
250066628
260066529
270056530
280056530
290056431
300056332
310066133

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 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
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 6:28 AM to 6:39 AM, and sunset from 7:40 PM to 7:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:287:40
213.26:287:40
313.26:287:41
413.26:287:42
513.26:287:42
613.26:297:43
713.26:297:44
813.36:297:44
913.36:297:45
1013.36:307:45
1113.36:307:46
1213.36:307:47
1313.36:307:47
1413.36:317:48
1513.36:317:48
1613.36:327:49
1713.36:327:49
1813.36:327:50
1913.36:337:50
2013.36:337:51
2113.36:347:51
2213.36:347:52
2313.36:357:52
2413.36:357:53
2513.36:367:53
2613.36:367:54
2713.36:377:54
2813.36:377:54
2913.36:387:55
3013.36:387:55
3113.36:397:55

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.81 kWh/m².

For context, solar energy here swings from a low near 3.88 kWh/m² to a high of 6.02 kWh/m² in October across the year — December's 5.81 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.9Bright
225.9Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Monte Alto

In seasonPeak

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

Monte Alto'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 Monte Alto?

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

3.7
Sightseeing
11th-best month of the year
4.9
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Monte Alto.

What to pack for Monte Alto in December

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

In December, Monte Alto sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Monte Alto 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 Monte Alto peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 21UV 15Jun 21UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun6High
Jul7High
Aug9Very high
Sep9Very high
Oct10Extreme
Nov13Extreme
Dec14Extreme

Air quality in Monte Alto 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 Monte Alto is worst in September — around 35 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (November, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1134 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar11Good
Apr12Good
May13Moderate
Jun13Moderate
Jul14Moderate
Aug31Moderate
Sep35Moderate
Oct19Moderate
Nov9Good
Dec10Good
Location & terrain

Where is Monte Alto?

Monte Alto sits at 21.3°S, 48.5°W, 723 m above sea level, in Brazil. The nearest listed city is Taquaritinga, 16 km away.

Topography around Monte Alto

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

Within 3 km, the terrain around Monte Alto has only modest variations in elevation — a maximum elevation change of 184 m around an average of 682 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 260 m; within 80 km, significant variations in elevation — a maximum elevation change of 470 m.

The land around Monte Alto is covered by grassland (33%), artificial surfaces (31%) and trees (25%) within 3 km, cropland (55%) and grassland (23%) within 16 km, and cropland (72%) within 80 km.

3 km
184 m
16 km
260 m
80 km
470 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Taquaritinga 16 km · Jaboticabal 18 km · Guariba 30 km · Bebedouro 35 km · Barrinha 35 km · Pitangueiras 40 km · Matão 40 km · Monte Azul Paulista 42 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 Monte Alto (-21.2611°, -48.4964°, elevation 723 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).