Ervália weather in December

In December, Ervália sees average daytime highs of 27°C and overnight lows near 19°C, with 230 mm of rain across 20.5 wet days and about 13.2 hours of daylight. It is the 4th-warmest and 1st-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 12 min by month's end. Set against the rest of the year, December is Ervália's 11th-clearest and 4th-windiest month. For the whole year in context, see Ervália's year-round climate.

Daytime high
27°
4th warmest
Overnight low
19°
10th coldest
Rainfall
230 mm
20.5 wet days
Daylight
13 h 18 min
6:09 AM – 7:25 PM
Cloud cover
77%
11th clearest
Wind
9 km/h
4th windiest
Solar energy
5.46 kWh/m²
Travel score
4.7
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 Ervália 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 about 1°C warmer than November and about 1°C cooler than 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
152719
162719
172719
182719
192719
202719
212819
222819
232819
242819
252819
262819
272819
282820
292820
302820
312820

Ervália weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°20517.613.14.9
Feb29° / 20°11412.812.75.0
Mar28° / 19°12816.612.15.2
Apr27° / 18°5910.311.56.5
May24° / 15°345.9117.6
Jun24° / 14°112.610.88.3
Jul24° / 13°92.310.98.4
Aug25° / 14°152.911.38.2
Sep26° / 16°517.611.97.1
Oct27° / 17°8811.512.56.2
Nov26° / 18°19518135.1
Dec27° / 19°23020.513.24.7

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 77%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11882
21882
31783
41783
51783
61882
71882
81882
91882
102080
112179
122179
132179
142377
152377
162476
172674
182674
192674
202674
212773
222872
232872
242872
252872
262872
272674
282674
292674
302674
312674

Chance of precipitation in December

Any precipitation

Ervália gets around 230 mm of rain over 20.5 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 66% and peaks near 68% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
166
266
367
467
567
668
768
868
968
1068
1168
1267
1367
1467
1566
1666
1766
1865
1965
2065
2165
2265
2365
2465
2565
2664
2764
2864
2964
3064
3163

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 73% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1535582
2534583
3432613
4431623
5430624
6428644
7327664
8327655
9326665
10325675
11224695
12224695
13223705
14223705
15223705
16122725
17122725
18122725
19122725
20122725
21122734
22122734
23122725
24122725
25122725
26122725
27122725
28122725
29122725
30123715
31023725

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 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
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 12 min at the start of December to 13 h 12 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 6:05 AM to 6:16 AM, and sunset from 7:16 PM to 7:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:057:16
213.26:057:16
313.26:057:17
413.26:067:18
513.26:067:18
613.26:067:19
713.26:067:19
813.26:067:20
913.26:077:21
1013.26:077:21
1113.26:077:22
1213.26:087:22
1313.26:087:23
1413.36:087:23
1513.36:097:24
1613.36:097:25
1713.36:097:25
1813.36:107:26
1913.36:107:26
2013.36:117:27
2113.36:117:27
2213.36:127:28
2313.36:127:28
2413.36:137:29
2513.36:137:29
2613.36:147:29
2713.36:147:30
2813.36:157:30
2913.36:157:31
3013.36:167:31
3113.26:167:31

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.46 kWh/m².

For context, solar energy here swings from a low near 3.53 kWh/m² to a high of 5.91 kWh/m² in February across the year — December's 5.46 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.5Bright
175.5Bright
185.5Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Ervália

In seasonPeak

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

Ervália'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 Ervália?

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

4.7
Sightseeing
12th-best month of the year
4.9
Beach & pool
12th-best month of the year

December is a reasonable time to visit Ervália for sightseeing.

What to pack for Ervália in December

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

In December, Ervália sees daytime highs around 27°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Ervália 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 Ervália peaks around February 9 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 highExtremeFeb 9UV 15Jun 22UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May7Very high
Jun7High
Jul7High
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Ervália 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 Ervália is worst in September — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (March, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1715 µg/m³Mar 168 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar8Good
Apr9Good
May10Good
Jun10Good
Jul10Good
Aug11Good
Sep15Moderate
Oct12Good
Nov9Good
Dec9Good
Location & terrain

Where is Ervália?

Ervália sits at 20.8°S, 42.7°W, 740 m above sea level, in Brazil. The nearest listed city is Viçosa, 25 km away.

Topography around Ervália

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

Within 3 km, the terrain around Ervália has only modest variations in elevation — a maximum elevation change of 239 m around an average of 788 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,283 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,834 m.

The land around Ervália is covered by grassland (56%) and trees (35%) within 3 km, grassland (53%) and trees (45%) within 16 km, and grassland (59%) and trees (40%) within 80 km.

3 km
239 m
16 km
1,283 m
80 km
1,834 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Viçosa 25 km · Visconde do Rio Branco 27 km · Ubá 43 km · Muriaé 44 km · Tocantins 53 km · Ponte Nova 54 km · Divino 59 km · Cataguases 61 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 Ervália (-20.84°, -42.6572°, elevation 740 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).