Marau weather in December

In December, Marau sees average daytime highs of 27°C and overnight lows near 17°C, with 175 mm of rain across 14.9 wet days and about 13.8 hours of daylight. It is the 2nd-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 35% of the time in December, and the air most often feels humid.

Daylight stretches from about 13 h 42 min at the start of December to 13 h 48 min by month's end. Set against the rest of the year, December is Marau's 6th-clearest and 7th-windiest month. For the whole year in context, see Marau's year-round climate.

Daytime high
27°
2nd warmest
Overnight low
17°
10th coldest
Rainfall
175 mm
14.9 wet days
Daylight
13 h 48 min
6:31 AM – 8:19 PM
Cloud cover
58%
6th clearest
Wind
12 km/h
7th windiest
Solar energy
6.47 kWh/m²
Travel score
5.8
out of 10

Marau is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 Marau reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 31°C. Set against its neighbours, December runs about 2°C warmer than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12716
22716
32716
42716
52716
62716
72717
82717
92717
102717
112717
122717
132717
142717
152717
162717
172717
182717
192717
202817
212817
222817
232818
242818
252818
262818
272818
282818
292818
302818
312818

Marau weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°16616.213.65.5
Feb27° / 18°15715.1135.5
Mar26° / 17°13713.112.26.2
Apr24° / 14°13810.411.36.8
May20° / 11°1569.510.66.4
Jun18° / 14410.110.25.9
Jul18° / 16410.410.46.0
Aug20° / 10°1159.2116.6
Sep21° / 12°1551111.86.4
Oct24° / 14°22313.912.76.2
Nov26° / 15°15712.213.46.4
Dec27° / 17°17514.913.85.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35050
45050
55050
65149
75149
85149
95149
105149
115149
125149
135248
145149
155248
165248
175248
185347
195347
205347
215347
225248
235248
245248
255050
265050
275050
284951
294951
304951
314951

Chance of precipitation in December

Any precipitation

Marau gets around 175 mm of rain over 14.9 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 47% and peaks near 50% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
142
242
342
443
544
644
745
845
946
1046
1147
1247
1348
1448
1549
1649
1749
1850
1950
2050
2150
2250
2350
2450
2550
2650
2750
2849
2949
3049
3149

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 35% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1172734220
2162734220
3162734230
4152734240
5142634250
6142634250
7132634260
8132534270
9122535281
10112535291
11112435291
12102435301
13102335311
1492236321
1592236321
1692135331
1782035342
1882035352
1981935362
2081934363
2171934373
2271834384
2361833394
2461733395
2561732405
2651632406
2751632417
2841631417
2941631417
3041631428
3131531428

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 42 min at the start of December to 13 h 48 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 6:28 AM to 6:38 AM, and sunset from 8:09 PM to 8:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.76:288:09
213.76:288:10
313.76:288:10
413.76:288:11
513.76:288:12
613.76:298:13
713.76:298:13
813.86:298:14
913.86:298:15
1013.86:298:15
1113.86:298:16
1213.86:308:17
1313.86:308:17
1413.86:308:18
1513.86:318:18
1613.86:318:19
1713.86:318:20
1813.86:328:20
1913.86:328:21
2013.86:338:21
2113.86:338:22
2213.86:338:22
2313.86:348:23
2413.86:348:23
2513.86:358:23
2613.86:358:24
2713.86:368:24
2813.86:378:25
2913.86:378:25
3013.86:388:25
3113.86:388:26

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.47 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.57 kWh/m² to a high of 6.47 kWh/m² in December across the year — December's 6.47 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in December

Is December a good time to visit Marau?

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

5.8
Sightseeing
10th-best month of the year
6.0
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Marau for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Marau in December

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

In December, Marau sees daytime highs around 27°C and nights near 17°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Marau 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 Marau peaks around January 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 20UV 14Jun 21UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May5High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct7High
Nov12Extreme
Dec13Extreme

Air quality in Marau 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 Marau is worst in September — around 15 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1514 µg/m³Mar 116 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar6Good
Apr7Good
May7Good
Jun7Good
Jul8Good
Aug11Good
Sep15Moderate
Oct9Good
Nov7Good
Dec6Good
Location & terrain

Where is Marau?

Marau sits at 28.4°S, 52.2°W, 553 m above sea level, in Brazil. The nearest listed city is Passo Fundo, 29 km away.

Topography around Marau

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

Within 3 km, the terrain around Marau has only modest variations in elevation — a maximum elevation change of 204 m around an average of 576 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 383 m; within 80 km, large variations in elevation — a maximum elevation change of 877 m.

The land around Marau is covered by trees (41%), cropland (26%) and artificial surfaces (23%) within 3 km, cropland (60%) and trees (32%) within 16 km, and cropland (57%) and trees (37%) within 80 km.

3 km
204 m
16 km
383 m
80 km
877 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Passo Fundo 29 km · Serafina Corrêa 39 km · Tapejara 46 km · Soledade 51 km · Guaporé 53 km · Carazinho 60 km · Não-Me-Toque 61 km · Getúlio Vargas 62 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 Marau (-28.4492°, -52.2°, elevation 553 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).