Maraã weather in December

In December, Maraã sees average daytime highs of 31°C and overnight lows near 24°C, with 251 mm of rain across 28.3 wet days and about 12.1 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 2% of the time in December, and the air most often feels miserable.

Daylight stretches from about 12 h 06 min at the start of December to 12 h 06 min by month's end. Set against the rest of the year, December is Maraã's 8th-clearest and 5th-windiest month. For the whole year in context, see Maraã's year-round climate.

Daytime high
31°
4th warmest
Overnight low
24°
10th coldest
Rainfall
251 mm
28.3 wet days
Daylight
12 h 06 min
6:15 AM – 6:22 PM
Cloud cover
85%
8th clearest
Wind
4 km/h
5th windiest
Solar energy
4.62 kWh/m²
Travel score
2.6
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical December day in Maraã reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°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)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124
313124

How December really feels in Maraã

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.

Maraã weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°2562512.12.9
Feb31° / 24°24322.212.12.9
Mar31° / 24°31327.6122.7
Apr30° / 24°34327.5122.7
May30° / 23°36829.411.92.7
Jun30° / 23°26627.611.93.0
Jul30° / 23°19926.611.93.2
Aug31° / 23°15424.911.93.1
Sep31° / 23°16124.5122.8
Oct31° / 24°17925.2122.7
Nov31° / 24°20025.912.12.6
Dec31° / 24°25128.312.12.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11288
21189
31189
41189
51189
61090
71090
8991
9991
10991
11892
12892
13892
14793
15793
16694
17694
18793
19793
20793
21793
22892
23892
24991
251090
261090
271288
281288
291288
301387
311486

Chance of precipitation in December

Any precipitation

Maraã gets around 251 mm of rain over 28.3 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 90% and peaks near 93% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
290
390
491
591
691
792
892
992
1092
1192
1292
1392
1492
1592
1693
1793
1892
1992
2092
2192
2291
2391
2490
2589
2688
2788
2887
2986
3085
3185

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the miserable band about 84% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1991
2991
3991
4991
5991
61090
71090
81189
91189
101288
111387
121387
131486
141585
151585
161684
171783
181783
191882
201882
211882
221981
231981
242080
252080
262179
272179
282278
292278
302377
312476

Wind in December

Winds average 4 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 06 min at the start of December to 12 h 06 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 6:09 AM to 6:22 AM, and sunset from 6:15 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:096:15
212.16:096:15
312.16:106:16
412.16:106:16
512.16:116:17
612.16:116:17
712.16:116:18
812.16:126:18
912.16:126:18
1012.16:136:19
1112.16:136:19
1212.16:136:20
1312.16:146:20
1412.16:146:21
1512.16:156:21
1612.16:156:22
1712.16:166:22
1812.16:166:23
1912.16:176:23
2012.16:176:24
2112.16:186:24
2212.16:186:24
2312.16:196:25
2412.16:196:25
2512.16:196:26
2612.16:206:26
2712.16:206:27
2812.16:216:27
2912.16:216:28
3012.16:226:28
3112.16:226:29

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.62 kWh/m².

For context, solar energy here swings from a low near 3.68 kWh/m² to a high of 5.24 kWh/m² in October across the year — December's 4.62 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in December

Is December a good time to visit Maraã?

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

2.6
Sightseeing
11th-best month of the year
3.8
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Maraã.

What to pack for Maraã in December

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

In December, Maraã sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

UV index in Maraã in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Maraã peaks around January 23 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeJan 23UV 14Jul 15UV 10
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep11Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme

Air quality in Maraã 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 Maraã is worst in March — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (June, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 1619 µg/m³Jun 1510 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar19Moderate
Apr16Moderate
May11Good
Jun10Good
Jul11Good
Aug15Moderate
Sep14Moderate
Oct14Moderate
Nov14Moderate
Dec14Moderate
Location & terrain

Where is Maraã?

Maraã sits at 1.9°S, 65.6°W, 54 m above sea level, in Brazil. The nearest listed city is Fonte Boa, 93 km away.

São Gabriel da CachoeiraTonantinsSanto Antônio do IçáBarcelos

Topography around Maraã

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

Within 3 km, the terrain around Maraã has only modest variations in elevation — a maximum elevation change of 40 m around an average of 48 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 49 m; within 80 km, only modest variations in elevation — a maximum elevation change of 60 m.

The land around Maraã is covered by trees (69%) and water (26%) within 3 km, trees (83%) within 16 km, and trees (94%) within 80 km.

3 km
40 m
16 km
49 m
80 km
60 m
treesgrasslandartificial surfaceswaterwetland
December weather nearby: Fonte Boa 93 km · Uarini 137 km · Alvarães 174 km · Tefé 193 km · São Gabriel da Cachoeira 256 km · Tonantins 272 km · Santo Antônio do Içá 297 km · Barcelos 310 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 Maraã (-1.853°, -65.5743°, elevation 54 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).