Samambaia weather in December

In December, Samambaia sees average daytime highs of 27°C and overnight lows near 19°C, with 245 mm of rain across 23.9 wet days and about 12.9 hours of daylight. It is the 9th-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 12 h 54 min at the start of December to 12 h 54 min by month's end. Set against the rest of the year, December is Samambaia's 12th-clearest and 9th-windiest month. For the whole year in context, see Samambaia's year-round climate.

Daytime high
27°
9th warmest
Overnight low
19°
11th coldest
Rainfall
245 mm
23.9 wet days
Daylight
12 h 54 min
6:40 AM – 7:37 PM
Cloud cover
80%
12th clearest
Wind
7 km/h
9th windiest
Solar energy
5.42 kWh/m²
Travel score
4.3
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 Samambaia 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
152719
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

Samambaia 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
Jan27° / 19°23022.412.84.5
Feb28° / 19°19219.612.54.6
Mar28° / 19°21421.912.14.6
Apr28° / 18°9313.311.76.0
May27° / 16°213.511.37.6
Jun27° / 15°50.811.18.4
Jul27° / 14°00.111.28.6
Aug29° / 16°61.511.57.4
Sep30° / 18°355.511.95.5
Oct30° / 19°12214.812.44.5
Nov28° / 19°22722.512.74.3
Dec27° / 19°24523.912.94.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% 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 81%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21684
31684
41585
51585
61684
71684
81585
91585
101684
111684
121684
131783
141882
151981
161981
172080
182080
192179
202278
212278
222377
232377
242377
252278
262278
272278
282278
292278
302179
312179

Chance of precipitation in December

Any precipitation

Samambaia gets around 245 mm of rain over 23.9 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 77% and peaks near 81% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
180
281
381
481
581
681
781
881
980
1080
1179
1278
1378
1477
1576
1675
1775
1874
1974
2074
2173
2273
2373
2474
2574
2674
2775
2875
2975
3076
3176

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 62% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
153065
252966
352867
452768
552768
652669
752669
852669
962767
1062767
1162767
1262866
1362965
1463064
1563163
1663262
1763361
1863460
1963559
2063658
2163757
2263856
2363856
2463856
2553857
2653857
2753758
2853758
2953659
3053659
3153560

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 8 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
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 54 min at the start of December to 12 h 54 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 6:36 AM to 6:48 AM, and sunset from 7:28 PM to 7:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:367:28
212.96:367:29
312.96:367:30
412.96:377:30
512.96:377:31
612.96:377:31
712.96:377:32
812.96:387:32
912.96:387:33
1012.96:387:34
1112.96:397:34
1212.96:397:35
1312.96:397:35
1412.96:407:36
1512.96:407:36
1612.96:407:37
1712.96:417:37
1812.96:417:38
1912.96:427:38
2012.96:427:39
2112.96:437:39
2212.96:437:40
2312.96:447:40
2412.96:447:41
2512.96:447:41
2612.96:457:42
2712.96:467:42
2812.96:467:42
2912.96:477:43
3012.96:477:43
3112.96:487:44

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.42 kWh/m².

For context, solar energy here swings from a low near 4.64 kWh/m² to a high of 6.1 kWh/m² in October across the year — December's 5.42 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.4Bright
165.4Bright
175.4Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
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 Samambaia

In seasonPeak

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

Samambaia'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 Samambaia?

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

4.3
Sightseeing
11th-best month of the year
4.4
Beach & pool
12th-best month of the year

December is a reasonable time to visit Samambaia for sightseeing.

What to pack for Samambaia in December

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

In December, Samambaia sees daytime highs around 27°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Samambaia 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 Samambaia peaks around February 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 15UV 15Jun 22UV 8
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep13Extreme
Oct13Extreme
Nov14Extreme
Dec13Extreme

Air quality in Samambaia 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 Samambaia is worst in September — around 32 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (January, 11 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateSep 1830 µg/m³Jan 1511 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr14Moderate
May15Moderate
Jun13Moderate
Jul13Moderate
Aug15Moderate
Sep32Moderate
Oct21Moderate
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Samambaia?

Samambaia sits at 15.9°S, 48.1°W, 1,226 m above sea level, in Brazil. The nearest listed city is Pôr do Sol, 4.0 km away.

Topography around Samambaia

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

Within 3 km, the terrain around Samambaia has significant variations in elevation — a maximum elevation change of 259 m around an average of 1,168 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 401 m; within 80 km, large variations in elevation — a maximum elevation change of 771 m.

The land around Samambaia is covered by artificial surfaces (40%) and grassland (34%) within 3 km, grassland (36%), artificial surfaces (21%) and trees (20%) within 16 km, and grassland (35%), trees (27%) and cropland (20%) within 80 km.

3 km
259 m
16 km
401 m
80 km
771 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Pôr do Sol 4.0 km · Recanto das Emas 5.0 km · Riacho Fundo II 6.0 km · Taguatinga 8.0 km · Ceilândia 9.0 km · Riacho Fundo 9.0 km · Águas Claras 10 km · Vicente Pires 11 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 Samambaia (-15.8823°, -48.1043°, elevation 1,226 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).