Laranjal do Jari weather in December

In December, Laranjal do Jari sees average daytime highs of 32°C and overnight lows near 24°C, with 77 mm of rain across 12.5 wet days and about 12 hours of daylight. It is the 4th-warmest and 8th-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 15% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of December to 12 hours by month's end. Set against the rest of the year, December is Laranjal do Jari's 7th-clearest and 4th-windiest month. For the whole year in context, see Laranjal do Jari's year-round climate.

Daytime high
32°
4th warmest
Overnight low
24°
11th coldest
Rainfall
77 mm
12.5 wet days
Daylight
12 hours
6:25 AM – 6:28 PM
Cloud cover
68%
7th clearest
Wind
9 km/h
4th windiest
Solar energy
5.09 kWh/m²
Travel score
3.5
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 Laranjal do Jari 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 30°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°151015202531
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63324
73324
83324
93324
103324
113324
123324
133324
143324
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224
313224

How December really feels in Laranjal do Jari

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.

Laranjal do Jari weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°16323123.1
Feb30° / 23°20923.5123.1
Mar30° / 23°25826.8123.0
Apr30° / 23°29327.7122.8
May30° / 23°25726.9123.0
Jun30° / 23°13322.1123.4
Jul31° / 23°9117.6123.9
Aug32° / 23°337.9124.3
Sep33° / 24°173.7124.0
Oct34° / 24°204.6123.7
Nov33° / 24°336123.6
Dec32° / 24°7712.5123.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24555
34555
44555
54555
64555
74555
84456
94456
104357
114357
124159
134060
143961
153961
163763
173763
183664
193466
203466
213268
223268
233169
243169
253070
262971
272971
282971
292971
302872
312872

Chance of precipitation in December

Any precipitation

Laranjal do Jari gets around 77 mm of rain over 12.5 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 41% and peaks near 62% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
125
225
326
426
527
628
729
830
931
1032
1133
1235
1336
1438
1539
1641
1742
1843
1945
2046
2147
2249
2350
2451
2553
2654
2756
2857
2959
3060
3162

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 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
114851
213861
313861
412871
511881
611881
710891
810891
99901
109901
119901
129901
138911
148911
158911
168911
177921
187921
197912
206922
216922
226922
235932
245941
254951
264951
274951
283961
293961
303961
312971

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 hours at the start of December to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:18 AM to 6:32 AM, and sunset from 6:21 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:186:21
212.06:196:21
312.06:196:22
412.06:206:22
512.06:206:23
612.06:206:23
712.06:216:24
812.06:216:24
912.06:226:24
1012.06:226:25
1112.06:236:25
1212.06:236:26
1312.06:236:26
1412.06:246:27
1512.06:246:27
1612.06:256:28
1712.06:256:28
1812.06:266:29
1912.06:266:29
2012.06:276:29
2112.06:276:30
2212.06:286:30
2312.06:286:31
2412.06:296:31
2512.06:296:32
2612.06:296:32
2712.06:306:33
2812.06:306:33
2912.06:316:34
3012.06:316:34
3112.06:326:35

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.09 kWh/m².

For context, solar energy here swings from a low near 3.85 kWh/m² to a high of 6.26 kWh/m² in October across the year — December's 5.09 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
204.9Bright
214.9Bright
224.9Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.6Bright
Planning a trip in December

Hazard calendar for Laranjal do Jari

In seasonPeak

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

Laranjal do Jari's monsoon runs January–June, 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 Laranjal do Jari?

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

3.5
Sightseeing
6th-best month of the year
5.8
Beach & pool
5th-best month of the year

December is a weaker month for outdoor sightseeing in Laranjal do Jari.

What to pack for Laranjal do Jari in December

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

In December, Laranjal do Jari sees daytime highs around 32°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Laranjal do Jari 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 Laranjal do Jari peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 13UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Laranjal do Jari 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 Laranjal do Jari is worst in February — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 2217 µg/m³Jul 218 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar17Moderate
Apr15Moderate
May10Good
Jun9Good
Jul8Good
Aug8Good
Sep10Good
Oct13Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Laranjal do Jari?

Laranjal do Jari sits at 0.8°S, 52.5°W, 79 m above sea level, in Brazil. The nearest listed city is Almeirim, 78 km away.

Topography around Laranjal do Jari

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

Within 3 km, the terrain around Laranjal do Jari has only modest variations in elevation — a maximum elevation change of 101 m around an average of 22 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 245 m; within 80 km, large variations in elevation — a maximum elevation change of 634 m.

The land around Laranjal do Jari is covered by trees (59%) within 3 km, trees (83%) within 16 km, and trees (88%) within 80 km.

3 km
101 m
16 km
245 m
80 km
634 m
treesgrasslandartificial surfaceswaterwetland
December weather nearby: Almeirim 78 km · Porto de Moz 107 km · Gurupá 116 km · Prainha 153 km · Mazagão 157 km · Santana 172 km · Macapá 187 km · Senador José Porfírio 206 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 Laranjal do Jari (-0.826°, -52.506°, elevation 79 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).