Lucas weather in December

In December, Lucas sees average daytime highs of 32°C and overnight lows near 24°C, with 222 mm of rain across 23.1 wet days and about 13 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 11% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 54 min at the start of December to 13 hours by month's end. Set against the rest of the year, December is Lucas's 10th-clearest and 4th-windiest month. For the whole year in context, see Lucas's year-round climate.

Daytime high
32°
5th warmest
Overnight low
24°
12th coldest
Rainfall
222 mm
23.1 wet days
Daylight
13 hours
6:11 AM – 7:09 PM
Cloud cover
77%
10th clearest
Wind
7 km/h
4th windiest
Solar energy
5.62 kWh/m²
Travel score
2.7
out of 10

Lucas 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 32°C through the month.

A typical December day in Lucas reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 35°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)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224
313224

How December really feels in Lucas

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.

Lucas weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°26224.212.92.7
Feb32° / 24°2112212.52.7
Mar32° / 24°18123.112.12.8
Apr32° / 23°8412.511.63.8
May31° / 21°395.311.25.3
Jun31° / 20°141.7115.9
Jul31° / 19°80.911.15.9
Aug33° / 20°111.711.54.3
Sep34° / 23°496.211.93.2
Oct34° / 24°11814.612.42.7
Nov33° / 24°17419.412.82.8
Dec32° / 24°22223.1132.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22476
32476
42278
52278
62080
72080
82179
92179
102179
112278
122278
132377
142476
152575
162674
172773
182773
192971
202971
212971
222971
232971
242971
252971
262872
272872
282872
292872
302773
312674

Chance of precipitation in December

Any precipitation

Lucas gets around 222 mm of rain over 23.1 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 74% and peaks near 77% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
176
277
377
477
577
677
777
877
976
1076
1175
1275
1374
1474
1573
1673
1772
1872
1972
2072
2172
2272
2372
2473
2573
2673
2774
2874
2974
3075
3175

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 61% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1036334
2036235
3036235
4026236
5026137
6026137
7126037
8126037
9126037
10125938
11125938
12126037
13126037
14126037
15126037
16126037
17126037
18126037
19126136
20126136
21116236
22116236
23016336
24016336
25016336
26016336
27016336
28016336
29016336
30016237
31016237

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 54 min at the start of December to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 6:06 AM to 6:18 AM, and sunset from 7:01 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:067:01
212.96:077:01
312.96:077:02
412.96:077:02
512.96:077:03
612.96:087:03
712.96:087:04
812.96:087:05
912.96:087:05
1013.06:097:06
1113.06:097:06
1213.06:097:07
1313.06:107:07
1413.06:107:08
1513.06:107:08
1613.06:117:09
1713.06:117:09
1813.06:127:10
1913.06:127:10
2013.06:137:11
2113.06:137:11
2213.06:147:12
2313.06:147:12
2413.06:147:13
2513.06:157:13
2613.06:157:14
2713.06:167:14
2813.06:167:15
2913.06:177:15
3013.06:187:15
3113.06:187:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.62 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 5.97 kWh/m² in October across the year — December's 5.62 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.6Bright
Planning a trip in December

Hazard calendar for Lucas

In seasonPeak

In December, Lucas sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Lucas's monsoon runs October–March, 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 Lucas?

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

2.7
Sightseeing
9th-best month of the year
4.4
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Lucas.

What to pack for Lucas in December

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

In December, Lucas sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

UV index in Lucas in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lucas peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 15 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 21UV 15Sep 15UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep6High
Oct10Extreme
Nov13Extreme
Dec14Extreme

Air quality in Lucas 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 Lucas is worst in September — around 107 µg/m³ PM2.5 (unhealthy), about 16.5× the cleanest month (June, 7 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecGoodUnhealthyModerateGoodSep 14101 µg/m³Jun 197 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar9Good
Apr8Good
May7Good
Jun7Good
Jul7Good
Aug68Unhealthy
Sep107Unhealthy
Oct30Moderate
Nov14Moderate
Dec11Good
Location & terrain

Where is Lucas?

Lucas sits at 16.3°S, 55.9°W, 134 m above sea level, in Brazil. The nearest listed city is Santo Antônio do Leverger, 54 km away.

Topography around Lucas

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

Within 3 km, the terrain around Lucas has only modest variations in elevation — a maximum elevation change of 22 m around an average of 130 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 211 m; within 80 km, large variations in elevation — a maximum elevation change of 795 m.

The land around Lucas is covered by wetland (40%) and trees (38%) within 3 km, wetland (50%) and trees (38%) within 16 km, and trees (53%) and grassland (26%) within 80 km.

3 km
22 m
16 km
211 m
80 km
795 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Santo Antônio do Leverger 54 km · Poconé 74 km · Várzea Grande 79 km · Cuiabá 84 km · Chapada dos Guimarães 99 km · Jaciara 111 km · Campo Verde 120 km · Rondonópolis 139 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 Lucas (-16.3333°, -55.9333°, elevation 134 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).