Silvânia weather in December

In December, Silvânia sees average daytime highs of 28°C and overnight lows near 19°C, with 272 mm of rain across 24.8 wet days and about 13 hours of daylight. It is the 9th-warmest and 1st-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 8% of the time in December, and the air most often feels muggy.

Daylight stretches from about 12 h 54 min at the start of December to 13 hours by month's end. Set against the rest of the year, December is Silvânia's 12th-clearest and 9th-windiest month. For the whole year in context, see Silvânia's year-round climate.

Daytime high
28°
9th warmest
Overnight low
19°
12th coldest
Rainfall
272 mm
24.8 wet days
Daylight
13 hours
6:41 AM – 7:40 PM
Cloud cover
81%
12th clearest
Wind
7 km/h
9th windiest
Solar energy
5.44 kWh/m²
Travel score
4.1
out of 10

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 Silvânia reaches about 28°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 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
72819
82819
92819
102819
112819
122819
132819
142819
152819
162819
172819
182819
192819
202819
212819
222819
232819
242819
252819
262819
272819
282819
292819
302819
312819

Silvânia weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°25122.612.94.3
Feb28° / 19°19720.112.64.1
Mar28° / 19°21221.112.14.3
Apr28° / 18°8912.711.65.5
May28° / 17°21311.27.6
Jun27° / 15°60.9118.3
Jul27° / 15°10.311.18.4
Aug29° / 16°81.411.46.9
Sep31° / 18°376.311.95.1
Oct30° / 19°12916.312.44.1
Nov28° / 19°24523.112.83.9
Dec28° / 19°27224.8134.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of December, with mostly cloudy or overcast conditions the remaining 83%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21684
31684
41585
51486
61387
71486
81387
91486
101387
111486
121585
131684
141684
151783
161783
171882
181981
192080
202080
212080
222080
232080
242080
252080
262080
272080
282080
292080
302080
311981

Chance of precipitation in December

Any precipitation

Silvânia gets around 272 mm of rain over 24.8 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 79% and peaks near 84% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
182
283
383
484
584
684
784
883
983
1082
1182
1281
1380
1480
1579
1678
1778
1877
1977
2076
2176
2276
2376
2476
2577
2677
2777
2877
2977
3077
3177

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 74% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
142076
232077
331978
431879
531879
631879
731879
831879
931879
1031978
1132077
1232077
1332176
1432275
1532374
1632473
1732572
1832671
1942670
2042769
2142769
2242769
2332770
2432770
2532770
2632671
2732671
2832572
2932572
3032473
3132473

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 54 min at the start of December to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 6:37 AM to 6:48 AM, and sunset from 7:32 PM to 7:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:377:32
212.96:377:32
312.96:377:33
412.96:377:34
512.96:377:34
613.06:387:35
713.06:387:35
813.06:387:36
913.06:387:36
1013.06:397:37
1113.06:397:38
1213.06:397:38
1313.06:407:39
1413.06:407:39
1513.06:417:40
1613.06:417:40
1713.06:417:41
1813.06:427:41
1913.06:427:42
2013.06:437:42
2113.06:437:43
2213.06:447:43
2313.06:447:44
2413.06:457:44
2513.06:457:45
2613.06:467:45
2713.06:467:45
2813.06:477:46
2913.06:477:46
3013.06:487:47
3113.06:487:47

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.44 kWh/m².

For context, solar energy here swings from a low near 4.54 kWh/m² to a high of 6.15 kWh/m² in October across the year — December's 5.44 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.5Bright
Planning a trip in December

Hazard calendar for Silvânia

In seasonPeak

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

Silvânia's monsoon runs October–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 Silvânia?

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

4.1
Sightseeing
9th-best month of the year
4.4
Beach & pool
12th-best month of the year

December is a reasonable time to visit Silvânia for sightseeing.

What to pack for Silvânia in December

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

In December, Silvânia sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Silvânia 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 Silvânia peaks around February 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 13UV 15Jun 21UV 8
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov14Extreme
Dec14Extreme

Air quality in Silvânia 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 Silvânia is worst in September — around 18 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (July, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1917 µg/m³Jul 148 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar12Good
Apr10Good
May10Good
Jun9Good
Jul8Good
Aug10Good
Sep18Moderate
Oct14Moderate
Nov10Good
Dec10Good
Location & terrain

Where is Silvânia?

Silvânia sits at 16.7°S, 48.6°W, 914 m above sea level, in Brazil. The nearest listed city is Bela Vista de Goiás, 50 km away.

Topography around Silvânia

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

Within 3 km, the terrain around Silvânia has only modest variations in elevation — a maximum elevation change of 163 m around an average of 920 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 264 m; within 80 km, significant variations in elevation — a maximum elevation change of 531 m.

The land around Silvânia is covered by cropland (37%) and trees (30%) within 3 km, cropland (46%), trees (29%) and grassland (20%) within 16 km, and grassland (34%), cropland (30%) and trees (29%) within 80 km.

3 km
163 m
16 km
264 m
80 km
531 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Bela Vista de Goiás 50 km · Senador Canedo 51 km · Anápolis 52 km · Orizona 53 km · Alexânia 66 km · Goiânia 68 km · Aparecida de Goiânia 69 km · Nerópolis 71 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 Silvânia (-16.6666°, -48.6125°, elevation 914 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).