Bom Jesus das Selvas weather in December

In December, Bom Jesus das Selvas sees average daytime highs of 32°C and overnight lows near 23°C, with 119 mm of rain across 17 wet days and about 12.3 hours of daylight. It is the 6th-warmest and 5th-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 10% of the time in December, and the air most often feels oppressive.

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

Daytime high
32°
6th warmest
Overnight low
23°
10th coldest
Rainfall
119 mm
17 wet days
Daylight
12 h 18 min
5:56 AM – 6:11 PM
Cloud cover
74%
8th clearest
Wind
7 km/h
7th windiest
Solar energy
5.12 kWh/m²
Travel score
3.2
out of 10

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 Bom Jesus das Selvas reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, December runs about 1°C cooler than November and about 1°C warmer than January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
113223
123223
133223
143223
153223
163223
173223
183223
193223
203223
213223
223223
233223
243223
253223
263223
273123
283123
293123
303123
313123

How December really feels in Bom Jesus das Selvas

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.

Bom Jesus das Selvas weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°20225.112.22.9
Feb30° / 22°21924.412.12.9
Mar30° / 23°24328.2122.8
Apr30° / 23°18425.411.93.0
May31° / 22°9615.511.83.9
Jun32° / 22°194.411.74.9
Jul33° / 21°92.311.84.5
Aug34° / 22°40.711.93.8
Sep35° / 23°91.7123.4
Oct34° / 23°234.312.13.3
Nov33° / 23°5810.212.23.2
Dec32° / 23°1191712.33.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% 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 74%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43565
53565
63565
73367
83367
93367
103169
113169
122971
132872
142773
152674
162575
172476
182377
192278
202278
212179
222080
232080
242080
251981
261882
271882
281882
291882
301783
311783

Chance of precipitation in December

Any precipitation

Bom Jesus das Selvas gets around 119 mm of rain over 17 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 56% and peaks near 71% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
141
241
342
442
543
643
744
845
946
1047
1149
1250
1352
1453
1555
1656
1758
1859
1960
2061
2162
2263
2364
2465
2566
2667
2768
2869
2969
3070
3171

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 88% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
123770
222780
322780
422780
521790
621790
720800
819810
918820
1018820
1117830
1215850
1314860
1413870
1512880
1610900
179910
188920
197930
206940
215950
225950
234960
243970
253970
262971
272971
282971
292971
302971
311981

Wind in December

Winds average 7 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
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 12 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 6 minutes over December. Sunrise moves from 5:50 AM to 6:03 AM, and sunset from 6:04 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:506:04
212.25:506:05
312.25:516:05
412.25:516:06
512.25:516:06
612.25:526:07
712.35:526:07
812.35:526:08
912.35:536:08
1012.35:536:08
1112.35:546:09
1212.35:546:09
1312.35:556:10
1412.35:556:10
1512.35:556:11
1612.35:566:11
1712.35:566:12
1812.35:576:12
1912.35:576:13
2012.35:586:13
2112.35:586:14
2212.35:596:14
2312.35:596:15
2412.36:006:15
2512.36:006:16
2612.36:006:16
2712.36:016:16
2812.36:016:17
2912.36:026:17
3012.36:026:18
3112.36:036:18

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.12 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 6.09 kWh/m² in September across the year — December's 5.12 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.1Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in December

Hazard calendar for Bom Jesus das Selvas

In seasonPeak

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

Bom Jesus das Selvas's monsoon runs December–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 Bom Jesus das Selvas?

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

3.2
Sightseeing
7th-best month of the year
5.1
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Bom Jesus das Selvas.

What to pack for Bom Jesus das Selvas in December

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

In December, Bom Jesus das Selvas sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Bom Jesus das Selvas in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bom Jesus das Selvas peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 14UV 15Dec 11UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Bom Jesus das Selvas 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 Bom Jesus das Selvas is worst in November — around 43 µg/m³ PM2.5 (poor), about 6.0× the cleanest month (June, 7 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateNov 1442 µg/m³Jun 157 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar13Moderate
Apr11Good
May9Good
Jun7Good
Jul10Good
Aug15Moderate
Sep16Moderate
Oct35Moderate
Nov43Poor
Dec30Moderate
Location & terrain

Where is Bom Jesus das Selvas?

Bom Jesus das Selvas sits at 4.5°S, 46.9°W, 199 m above sea level, in Brazil. The nearest listed city is Buriticupu, 48 km away.

Topography around Bom Jesus das Selvas

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bom Jesus das Selvas.

Within 3 km, the terrain around Bom Jesus das Selvas has only modest variations in elevation — a maximum elevation change of 145 m around an average of 165 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 231 m; within 80 km, significant variations in elevation — a maximum elevation change of 401 m.

The land around Bom Jesus das Selvas is covered by grassland (54%) and trees (35%) within 3 km, trees (50%) and grassland (48%) within 16 km, and trees (55%) and grassland (41%) within 80 km.

3 km
145 m
16 km
231 m
80 km
401 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Buriticupu 48 km · Itinga do Maranhão 75 km · Dom Eliseu 76 km · Açailândia 89 km · Arame 104 km · Ulianópolis 109 km · Amarante do Maranhão 121 km · João Lisboa 123 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 Bom Jesus das Selvas (-4.4835°, -46.8533°, elevation 199 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).