Mairi weather in December

In December, Mairi sees average daytime highs of 31°C and overnight lows near 21°C, with 58 mm of rain across 8.2 wet days and about 12.7 hours of daylight. It is the 3rd-warmest and 3rd-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 24% of the time in December, and the air most often feels muggy.

Daylight stretches from about 12 h 36 min at the start of December to 12 h 42 min by month's end. Set against the rest of the year, December is Mairi's 7th-clearest and 11th-windiest month. For the whole year in context, see Mairi's year-round climate.

Daytime high
31°
3rd warmest
Overnight low
21°
8th coldest
Rainfall
58 mm
8.2 wet days
Daylight
12 h 42 min
5:16 AM – 5:57 PM
Cloud cover
63%
7th clearest
Wind
9 km/h
11th windiest
Solar energy
5.99 kWh/m²
Travel score
4.4
out of 10

Mairi 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 31°C through the month.

A typical December day in Mairi reaches about 31°C in the afternoon and slips back to 21°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°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)
13121
23121
33121
43121
53121
63121
73121
83121
93121
103121
113121
123121
133121
143121
153121
163121
173121
183121
193121
203121
213121
223121
233121
243121
253121
263121
273121
283121
293121
303121
313221

How December really feels in Mairi

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.

Mairi weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°7610.612.64.1
Feb32° / 22°5711.412.43.9
Mar31° / 22°7414.312.14.0
Apr30° / 21°5114.711.74.5
May28° / 20°4012.411.55.7
Jun26° / 19°3914.611.35.8
Jul26° / 18°3513.211.46.1
Aug27° / 18°3212.811.66.1
Sep29° / 19°248.711.95.8
Oct31° / 20°295.912.35.1
Nov31° / 21°548.312.54.5
Dec31° / 21°588.212.74.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23862
33961
44060
54060
64060
74159
84258
94258
104258
114357
124258
134258
144258
154258
164456
174456
184357
194357
204555
214456
224555
234555
244654
254555
264555
274654
284654
294654
304654
314654

Chance of precipitation in December

Any precipitation

Mairi gets around 58 mm of rain over 8.2 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 27% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
329
429
529
628
728
828
928
1028
1128
1228
1328
1428
1528
1627
1727
1827
1926
2026
2125
2225
2325
2425
2524
2624
2724
2825
2925
3026
3126

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 78% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10236710
20226810
30226810
40226711
50226711
60226711
70226711
80226711
90226711
100226711
110226711
120226810
130226810
141226710
151236610
16123679
17123679
18123679
19122698
20122698
21122698
22122698
23121708
24121717
25121717
26121717
27121717
28121717
29120727
30020737
31020728

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 12 h 36 min at the start of December to 12 h 42 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 5:11 AM to 5:23 AM, and sunset from 5:49 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:115:49
212.65:115:50
312.65:125:51
412.75:125:51
512.75:125:52
612.75:135:52
712.75:135:53
812.75:135:53
912.75:145:54
1012.75:145:54
1112.75:145:55
1212.75:155:55
1312.75:155:56
1412.75:155:56
1512.75:165:57
1612.75:165:57
1712.75:175:58
1812.75:175:58
1912.75:185:59
2012.75:185:59
2112.75:186:00
2212.75:196:00
2312.75:196:01
2412.75:206:01
2512.75:206:02
2612.75:216:02
2712.75:216:02
2812.75:226:03
2912.75:226:03
3012.75:236:04
3112.75:236:04

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.99 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.35 kWh/m² to a high of 5.99 kWh/m² in December across the year — December's 5.99 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
106.0Bright
116.0Bright
126.0Bright
136.0Bright
146.0Bright
156.0Bright
166.0Bright
176.0Bright
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in December

Is December a good time to visit Mairi?

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

4.4
Sightseeing
9th-best month of the year
6.7
Beach & pool
4th-best month of the year

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

What to pack for Mairi in December

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

In December, Mairi sees daytime highs around 31°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Mairi 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 Mairi peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 17UV 15Jun 23UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Mairi?

Mairi sits at 11.7°S, 40.1°W, 471 m above sea level, in Brazil. The nearest listed city is Baixa Grande, 28 km away.

Topography around Mairi

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

Within 3 km, the terrain around Mairi has only modest variations in elevation — a maximum elevation change of 211 m around an average of 453 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 390 m; within 80 km, large variations in elevation — a maximum elevation change of 1,063 m.

The land around Mairi is covered by grassland (60%) within 3 km, grassland (62%) within 16 km, and grassland (62%) within 80 km.

3 km
211 m
16 km
390 m
80 km
1,063 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Baixa Grande 28 km · Mundo Novo 39 km · Capim Grosso 40 km · Piritiba 44 km · Miguel Calmon 58 km · Ipirá 67 km · Jacobina 71 km · Tapiramutá 72 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 Mairi (-11.7114°, -40.1489°, elevation 471 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).