Demerval Lobão weather in December

In December, Demerval Lobão sees average daytime highs of 34°C and overnight lows near 24°C, with 94 mm of rain across 11.5 wet days and about 12.3 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 35°C in the first days to 33°C by the end. The sky is clear or mostly clear about 24% of the time in December, and the air most often feels oppressive.

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 Demerval Lobão's 8th-clearest and 7th-windiest month. For the whole year in context, see Demerval Lobão's year-round climate.

Daytime high
34°
5th warmest
Overnight low
24°
10th coldest
Rainfall
94 mm
11.5 wet days
Daylight
12 h 18 min
5:38 AM – 5:56 PM
Cloud cover
64%
8th clearest
Wind
6 km/h
7th windiest
Solar energy
5.59 kWh/m²
Travel score
2.6
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 35°C in the first days to 33°C by the end.

A typical December day in Demerval Lobão reaches about 34°C in the afternoon and slips back to 24°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 37°C. Set against its neighbours, December runs about 2°C cooler than November and about 2°C warmer than January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13525
23525
33525
43525
53525
63525
73524
83524
93524
103524
113524
123524
133524
143524
153424
163424
173424
183424
193424
203424
213424
223424
233424
243424
253424
263424
273424
283424
293324
303324
313324

How December really feels in Demerval Lobão

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.

Demerval Lobão weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°22222.612.32.7
Feb32° / 23°26322.212.22.8
Mar31° / 23°30226.3122.7
Apr31° / 23°22222.311.93.0
May32° / 23°9510.911.83.8
Jun33° / 23°112.211.74.0
Jul34° / 23°6111.73.8
Aug35° / 24°20.411.83.0
Sep37° / 24°30.7122.1
Oct37° / 25°172.312.11.7
Nov36° / 25°426.212.22.1
Dec34° / 24°9411.512.32.6

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%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35050
45149
55149
65050
74951
85050
94951
104951
114753
124654
134654
144753
154654
164555
174456
184357
194258
204258
214159
224060
233961
243862
253862
263664
273664
283565
293565
303466
313268

Chance of precipitation in December

Any precipitation

Demerval Lobão gets around 94 mm of rain over 11.5 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 38% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
126
226
327
427
527
628
728
829
930
1031
1132
1233
1334
1435
1537
1638
1739
1840
1941
2042
2143
2244
2345
2446
2548
2649
2750
2851
2953
3054
3156

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11937512
21937512
30837532
40837532
50737542
60736552
70736552
80635572
90635581
100534601
110533611
120432631
130431641
140330661
150328681
160327691
170226711
180225721
190224722
200223732
210222742
220221752
230221743
240220753
250219763
260218764
270217774
280216784
290215785
300214795
310213796

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 5:32 AM to 5:45 AM, and sunset from 5:49 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:325:49
212.35:325:50
312.35:325:50
412.35:335:50
512.35:335:51
612.35:345:51
712.35:345:52
812.35:345:52
912.35:355:53
1012.35:355:53
1112.35:355:54
1212.35:365:54
1312.35:365:55
1412.35:375:55
1512.35:375:56
1612.35:385:56
1712.35:385:57
1812.35:385:57
1912.35:395:58
2012.35:395:58
2112.35:405:59
2212.35:405:59
2312.35:415:59
2412.35:416:00
2512.35:426:00
2612.35:426:01
2712.35:436:01
2812.35:436:02
2912.35:446:02
3012.35:446:03
3112.35:456:03

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.59 kWh/m².

For context, solar energy here swings from a low near 4.77 kWh/m² to a high of 6.62 kWh/m² in October across the year — December's 5.59 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.7Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.2Bright
Planning a trip in December

Hazard calendar for Demerval Lobão

In seasonPeak

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

Demerval Lobão'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 Demerval Lobão?

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

2.6
Sightseeing
9th-best month of the year
5.4
Beach & pool
6th-best month of the year

December is a weaker month for outdoor sightseeing in Demerval Lobão.

What to pack for Demerval Lobão in December

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

In December, Demerval Lobão sees daytime highs around 34°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Demerval Lobão 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 Demerval Lobão peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 15Aug 10UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Demerval Lobão 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 Demerval Lobão is worst in October — around 35 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (June, 8 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 1633 µg/m³Jun 199 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun8Good
Jul10Good
Aug16Moderate
Sep25Moderate
Oct35Moderate
Nov23Moderate
Dec17Moderate
Location & terrain

Where is Demerval Lobão?

Demerval Lobão sits at 5.4°S, 42.7°W, 116 m above sea level, in Brazil. The nearest listed city is Teresina, 33 km away.

Topography around Demerval Lobão

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

Within 3 km, the terrain around Demerval Lobão has only modest variations in elevation — a maximum elevation change of 93 m around an average of 120 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 194 m; within 80 km, significant variations in elevation — a maximum elevation change of 378 m.

The land around Demerval Lobão is covered by trees (57%) and shrubs (20%) within 3 km, trees (63%) and shrubs (22%) within 16 km, and trees (55%) and shrubs (25%) within 80 km.

3 km
93 m
16 km
194 m
80 km
378 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Teresina 33 km · Timon 34 km · Altos 43 km · Parnarama 58 km · Água Branca 60 km · Matões 61 km · José de Freitas 68 km · Campo Maior 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 Demerval Lobão (-5.3583°, -42.6764°, elevation 116 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).