Boa Esperança weather in December

In December, Boa Esperança sees average daytime highs of 27°C and overnight lows near 19°C, with 243 mm of rain across 22.9 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 27°C through the month. The sky is clear or mostly clear about 9% 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 Boa Esperança's 11th-clearest and 6th-windiest month. For the whole year in context, see Boa Esperança's year-round climate.

Daytime high
27°
5th warmest
Overnight low
19°
10th coldest
Rainfall
243 mm
22.9 wet days
Daylight
13 h 18 min
6:20 AM – 7:37 PM
Cloud cover
76%
11th clearest
Wind
8 km/h
6th windiest
Solar energy
5.57 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 27°C through the month.

A typical December day in Boa Esperança 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 24°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)
12719
22719
32719
42719
52719
62719
72719
82719
92719
102719
112719
122719
132719
142719
152819
162819
172819
182819
192819
202819
212819
222819
232819
242819
252819
262819
272820
282820
292820
302820
312820

Boa Esperança 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
Jan28° / 20°24521.813.14.4
Feb28° / 19°14216.912.74.6
Mar28° / 19°15918.412.15.2
Apr27° / 17°588.711.56.7
May24° / 15°405.4117.7
Jun24° / 13°162.710.78.4
Jul24° / 13°12210.88.7
Aug26° / 13°162.811.38.3
Sep27° / 16°597.311.97.0
Oct28° / 18°10012.812.55.7
Nov27° / 18°18619134.9
Dec27° / 19°24322.913.34.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 78%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22476
32476
42377
52278
62278
72278
82179
92179
102179
112278
122179
132179
142278
152278
162278
172377
182476
192476
202476
212575
222575
232575
242476
252476
262476
272278
282278
292179
302179
312080

Chance of precipitation in December

Any precipitation

Boa Esperança gets around 243 mm of rain over 22.9 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 75% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
168
269
370
470
571
672
773
873
973
1073
1174
1274
1373
1473
1573
1673
1773
1873
1973
2074
2174
2274
2374
2475
2575
2675
2775
2875
2975
3075
3175

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 70% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1637570
2636580
3534610
4533620
5431650
6430660
7429670
8428680
9327700
10326710
11326710
12325720
13325720
14226720
15226720
16226720
17226720
18226720
19226720
20227710
21127720
22126730
23126730
24126721
25125731
26125731
27125731
28124741
29124741
30124741
31124741

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
218calm
228calm
238calm
248calm
258calm
268calm
277calm
287calm
297calm
307calm
317calm

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 6:16 AM to 6:27 AM, and sunset from 7:28 PM to 7:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:167:28
213.26:167:28
313.26:177:29
413.26:177:30
513.26:177:30
613.26:177:31
713.26:177:31
813.26:187:32
913.26:187:33
1013.36:187:33
1113.36:187:34
1213.36:197:34
1313.36:197:35
1413.36:197:36
1513.36:207:36
1613.36:207:37
1713.36:217:37
1813.36:217:38
1913.36:217:38
2013.36:227:39
2113.36:227:39
2213.36:237:40
2313.36:237:40
2413.36:247:41
2513.36:247:41
2613.36:257:42
2713.36:257:42
2813.36:267:42
2913.36:267:43
3013.36:277:43
3113.36:277:43

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.57 kWh/m².

For context, solar energy here swings from a low near 3.86 kWh/m² to a high of 5.78 kWh/m² in February across the year — December's 5.57 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in December

Hazard calendar for Boa Esperança

In seasonPeak

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

Boa Esperança'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 Boa Esperança?

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

4.4
Sightseeing
11th-best month of the year
4.7
Beach & pool
12th-best month of the year

December is a reasonable time to visit Boa Esperança for sightseeing.

What to pack for Boa Esperança in December

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

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

light clothesrain gearsun protection

UV index in Boa Esperança 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 Boa Esperança peaks around January 22 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 22UV 15Jun 21UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun6High
Jul7High
Aug9Very high
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Boa Esperança 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 Boa Esperança is worst in September — around 23 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1622 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr8Good
May8Good
Jun8Good
Jul8Good
Aug12Good
Sep23Moderate
Oct12Good
Nov7Good
Dec7Good
Location & terrain

Where is Boa Esperança?

Boa Esperança sits at 21.1°S, 45.6°W, 780 m above sea level, in Brazil. The nearest listed city is Campos Gerais, 26 km away.

Topography around Boa Esperança

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

Within 3 km, the terrain around Boa Esperança has only modest variations in elevation — a maximum elevation change of 125 m around an average of 801 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 547 m; within 80 km, large variations in elevation — a maximum elevation change of 728 m.

The land around Boa Esperança is covered by trees (26%), grassland (21%) and artificial surfaces (21%) within 3 km, trees (43%), grassland (31%) and cropland (21%) within 16 km, and grassland (40%) and trees (38%) within 80 km.

3 km
125 m
16 km
547 m
80 km
728 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Campos Gerais 26 km · Três Pontas 31 km · Campo Belo 37 km · Nepomuceno 38 km · Perdões 49 km · Varginha 53 km · Paraguaçu 54 km · Alfenas 55 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 Boa Esperança (-21.09°, -45.5658°, elevation 780 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).