Monte Santo weather in December

In December, Monte Santo sees average daytime highs of 32°C and overnight lows near 22°C, with 36 mm of rain across 4.4 wet days and about 12.6 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 34% of the time in December, and the air most often feels muggy.

Daylight stretches from about 12 h 36 min at the start of December to 12 h 36 min by month's end. Set against the rest of the year, December is Monte Santo's 4th-clearest and 10th-windiest month. For the whole year in context, see Monte Santo's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
22°
8th coldest
Rainfall
36 mm
4.4 wet days
Daylight
12 h 36 min
5:15 AM – 5:52 PM
Cloud cover
57%
4th clearest
Wind
12 km/h
10th windiest
Solar energy
6.32 kWh/m²
Travel score
4.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical December day in Monte Santo reaches about 32°C in the afternoon and slips back to 22°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13221
23221
33221
43221
53221
63221
73222
83222
93222
103222
113222
123222
133222
143222
153222
163222
173222
183222
193222
203222
213222
223222
233222
243222
253222
263222
273222
283222
293222
303222
313222

How December really feels in Monte Santo

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.

Monte Santo 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
Jan32° / 22°526.412.54.2
Feb32° / 22°42712.34.0
Mar32° / 22°558.112.14.1
Apr31° / 22°33811.84.7
May29° / 21°29811.55.7
Jun27° / 20°23811.46.7
Jul27° / 19°196.911.56.9
Aug28° / 18°155.311.77.0
Sep30° / 19°9311.96.1
Oct31° / 20°162.612.25.1
Nov32° / 21°364.612.54.5
Dec32° / 22°364.412.64.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35347
45347
55347
65347
75347
85347
95347
105446
115446
125446
135347
145347
155446
165446
175347
185347
195446
205446
215347
225347
235347
245248
255248
265248
275248
285248
295149
305149
315149

Chance of precipitation in December

Any precipitation

Monte Santo gets around 36 mm of rain over 4.4 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 14% and peaks near 15% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
115
215
315
415
514
614
714
815
915
1015
1115
1215
1315
1415
1515
1615
1715
1815
1915
2014
2114
2214
2314
2413
2513
2613
2713
2813
2914
3014
3115

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 65% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1234586
2234577
3234577
4235567
5234577
6234577
7234577
8234577
9234577
10234577
11234577
12133597
13133606
14133606
15133606
16133606
17133606
18133615
19133615
20133615
21133615
22133615
23133615
24133615
25133615
26132625
27132625
28132625
29132625
30132616
31131626

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612calm
712calm
812calm
912calm
1012calm
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 36 min at the start of December to 12 h 36 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 5:10 AM to 5:22 AM, and sunset from 5:44 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:105:44
212.65:105:45
312.65:115:45
412.65:115:46
512.65:115:46
612.65:125:47
712.65:125:47
812.65:125:48
912.65:135:48
1012.65:135:49
1112.65:135:49
1212.65:145:50
1312.65:145:50
1412.65:145:51
1512.65:155:51
1612.65:155:52
1712.65:165:52
1812.65:165:53
1912.65:175:53
2012.65:175:54
2112.65:185:54
2212.65:185:55
2312.65:185:55
2412.65:195:56
2512.65:195:56
2612.65:205:56
2712.65:205:57
2812.65:215:57
2912.65:215:58
3012.65:225:58
3112.65:225:59

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.32 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.62 kWh/m² to a high of 6.32 kWh/m² in December across the year — December's 6.32 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in December

Is December a good time to visit Monte Santo?

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

4.4
Sightseeing
9th-best month of the year
7.2
Beach & pool
5th-best month of the year

December is a reasonable time to visit Monte Santo for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Monte Santo in December

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

In December, Monte Santo sees daytime highs around 32°C and nights near 22°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Monte Santo 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 Monte Santo peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 17UV 15Jul 12UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Monte Santo?

Monte Santo sits at 10.4°S, 39.3°W, 483 m above sea level, in Brazil. The nearest listed city is Cansanção, 31 km away.

Topography around Monte Santo

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

Within 3 km, the terrain around Monte Santo has significant variations in elevation — a maximum elevation change of 431 m around an average of 469 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 496 m; within 80 km, large variations in elevation — a maximum elevation change of 770 m.

The land around Monte Santo is covered by grassland (48%), trees (20%) and shrubs (20%) within 3 km, grassland (43%) and shrubs (34%) within 16 km, and shrubs (51%) and grassland (38%) within 80 km.

3 km
431 m
16 km
496 m
80 km
770 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Cansanção 31 km · Euclides da Cunha 36 km · Quijingue 38 km · Nordestina 44 km · Andorinha 56 km · Itiúba 64 km · Queimadas 68 km · Uauá 68 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 Santo (-10.4378°, -39.3328°, elevation 483 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).