Campo Maior weather in December

In December, Campo Maior sees average daytime highs of 36°C and overnight lows near 26°C, with 75 mm of rain across 8.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 37°C in the first days to 35°C by the end. The sky is clear or mostly clear about 25% of the time in December, and the air most often feels muggy.

Daylight stretches from about 12 h 18 min at the start of December to 12 h 18 min by month's end. Set against the rest of the year, December is Campo Maior's 8th-clearest and 7th-windiest month. For the whole year in context, see Campo Maior's year-round climate.

Daytime high
36°
4th warmest
Overnight low
26°
10th coldest
Rainfall
75 mm
8.8 wet days
Daylight
12 h 18 min
5:36 AM – 5:53 PM
Cloud cover
61%
8th clearest
Wind
9 km/h
7th windiest
Solar energy
5.92 kWh/m²
Travel score
2.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 37°C in the first days to 35°C by the end.

A typical December day in Campo Maior reaches about 36°C in the afternoon and slips back to 26°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 39°C. Set against its neighbours, December runs about 1°C cooler than November and about 3°C warmer than January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13726
23726
33726
43726
53726
63726
73726
83626
93626
103626
113626
123626
133626
143626
153626
163626
173626
183626
193626
203626
213625
223525
233525
243525
253525
263525
273525
283525
293525
303525
313525

How December really feels in Campo Maior

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
15 feel dangerously hot (≥ 39°C)
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.

Campo Maior 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
Jan33° / 24°21419.612.22.5
Feb32° / 24°24120.312.22.6
Mar32° / 24°31425.3122.6
Apr32° / 24°2502211.92.8
May33° / 24°10211.411.83.5
Jun34° / 24°143.111.73.8
Jul34° / 24°71.211.73.6
Aug36° / 25°10.311.82.8
Sep37° / 26°20.4121.9
Oct38° / 26°141.412.11.5
Nov37° / 26°253.812.21.7
Dec36° / 26°758.812.32.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55545
65545
75446
85446
95347
105248
115248
125149
135050
145050
154852
164852
174753
184654
194654
204555
214555
224456
234456
244258
254258
264159
274060
284060
293961
303862
313862

Chance of precipitation in December

Any precipitation

Campo Maior gets around 75 mm of rain over 8.8 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 29% and peaks near 49% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
116
216
317
417
518
618
719
820
921
1021
1122
1223
1325
1426
1527
1628
1729
1831
1932
2033
2134
2235
2337
2438
2540
2641
2742
2844
2945
3047
3149

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 42% of days. Sticky, muggy-or-worse air turns up on roughly 81% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
132549220
232549221
332450221
432450221
532450221
632450231
722351231
822350241
922250251
1022250261
1122150271
1212049281
1312049301
1411948311
1511847331
1611846351
1711745371
1801743391
1901642410
2001541440
2101539460
2201438480
2301336510
2401235530
2501234540
2601132570
2701031590
2801029610
290928630
300827650
310825670

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 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
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 18 min at the start of December to 12 h 18 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 5:31 AM to 5:44 AM, and sunset from 5:46 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:315:46
212.35:315:47
312.35:315:47
412.35:325:48
512.35:325:48
612.35:325:48
712.35:335:49
812.35:335:49
912.35:345:50
1012.35:345:50
1112.35:345:51
1212.35:355:51
1312.35:355:52
1412.35:365:52
1512.35:365:53
1612.35:365:53
1712.35:375:54
1812.35:375:54
1912.35:385:55
2012.35:385:55
2112.35:395:56
2212.35:395:56
2312.35:405:57
2412.35:405:57
2512.35:415:57
2612.35:415:58
2712.35:425:58
2812.35:425:59
2912.35:435:59
3012.35:436:00
3112.35:446:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.92 kWh/m².

For context, solar energy here swings from a low near 4.94 kWh/m² to a high of 6.85 kWh/m² in October across the year — December's 5.92 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.0Intense
126.0Intense
136.0Bright
146.0Bright
155.9Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in December

Hazard calendar for Campo Maior

In seasonPeak

None of Campo Maior's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Campo Maior's monsoon runs January–April, 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 Campo Maior?

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

2.1
Sightseeing
9th-best month of the year
4.9
Beach & pool
6th-best month of the year

December is a weaker month for outdoor sightseeing in Campo Maior.

What to pack for Campo Maior in December

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

In December, Campo Maior sees daytime highs around 36°C and nights near 26°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Campo Maior in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Campo Maior peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeMar 15UV 15Jul 24UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Air quality in Campo Maior 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 Campo Maior is worst in November — around 16 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (July, 4 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1816 µg/m³Jul 155 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr11Good
May8Good
Jun6Good
Jul4Good
Aug6Good
Sep7Good
Oct12Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Campo Maior?

Campo Maior sits at 4.8°S, 42.2°W, 128 m above sea level, in Brazil. The nearest listed city is Altos, 40 km away.

Topography around Campo Maior

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

Within 3 km, the terrain around Campo Maior has only modest variations in elevation — a maximum elevation change of 21 m around an average of 120 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 295 m; within 80 km, significant variations in elevation — a maximum elevation change of 497 m.

The land around Campo Maior is covered by grassland (54%) within 3 km, grassland (60%) and shrubs (27%) within 16 km, and trees (39%), shrubs (36%) and grassland (23%) within 80 km.

3 km
21 m
16 km
295 m
80 km
497 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Altos 40 km · José de Freitas 46 km · Barras 66 km · Piripiri 75 km · Teresina 76 km · Timon 80 km · Demerval Lobão 82 km · União 82 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 Campo Maior (-4.8278°, -42.1686°, elevation 128 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).