Feijó weather in December

In December, Feijó sees average daytime highs of 30°C and overnight lows near 23°C, with 264 mm of rain across 27.6 wet days and about 12.5 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 1% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of December to 12 h 30 min by month's end. Set against the rest of the year, December is Feijó's 9th-clearest and 3rd-windiest month. For the whole year in context, see Feijó's year-round climate.

Daytime high
30°
6th warmest
Overnight low
23°
12th coldest
Rainfall
264 mm
27.6 wet days
Daylight
12 h 30 min
5:23 AM – 5:52 PM
Cloud cover
86%
9th clearest
Wind
5 km/h
3rd windiest
Solar energy
4.76 kWh/m²
Travel score
2.8
out of 10

Feijó 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 30°C through the month.

A typical December day in Feijó reaches about 30°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°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)
13123
23123
33123
43123
53123
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How December really feels in Feijó

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.

Feijó weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°26227.912.42.8
Feb30° / 23°25725.212.32.8
Mar30° / 23°29028.312.12.8
Apr30° / 22°20324.111.83.1
May30° / 22°12320.311.63.8
Jun30° / 21°711411.54.7
Jul30° / 20°4910.611.64.8
Aug32° / 21°6911.111.73.9
Sep32° / 22°12517.2123.2
Oct32° / 23°1832312.22.8
Nov31° / 23°23524.912.42.8
Dec30° / 23°26427.612.52.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 6% of December, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4892
5892
6892
7892
8892
9892
10892
11892
12892
13892
14892
15892
16892
17892
18892
19892
20892
21892
22793
23793
24793
25793
26694
27595
28595
29595
30595
31595

Chance of precipitation in December

Any precipitation

Feijó gets around 264 mm of rain over 27.6 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 89% and peaks near 90% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
188
288
388
488
588
688
788
888
988
1088
1188
1288
1389
1489
1589
1689
1789
1889
1989
2090
2190
2290
2390
2490
2590
2690
2790
2890
2990
3090
3189

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 78% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
107030
207129
307129
407228
507228
607327
707327
807426
907525
1007525
1107624
1207723
1307723
1407822
1507921
1607921
1708020
1818019
1918019
2018118
2118217
2218217
2318316
2418316
2508416
2608416
2708416
2808416
2908416
3008416
3108317

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 24 min at the start of December to 12 h 30 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 5:18 AM to 5:30 AM, and sunset from 5:44 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:185:44
212.45:185:45
312.45:195:45
412.55:195:46
512.55:195:46
612.55:195:47
712.55:205:47
812.55:205:48
912.55:215:48
1012.55:215:49
1112.55:215:49
1212.55:225:50
1312.55:225:50
1412.55:235:51
1512.55:235:51
1612.55:235:52
1712.55:245:52
1812.55:245:53
1912.55:255:53
2012.55:255:54
2112.55:265:54
2212.55:265:55
2312.55:275:55
2412.55:275:56
2512.55:285:56
2612.55:285:56
2712.55:295:57
2812.55:295:57
2912.55:305:58
3012.55:305:58
3112.55:305:59

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.76 kWh/m².

For context, solar energy here swings from a low near 4.19 kWh/m² to a high of 5.44 kWh/m² in September across the year — December's 4.76 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in December

Hazard calendar for Feijó

In seasonPeak

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

Feijó's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Feijó?

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

2.8
Sightseeing
7th-best month of the year
3.9
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Feijó.

What to pack for Feijó in December

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

In December, Feijó sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

UV index in Feijó in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Feijó peaks around February 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 24 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 12UV 15Aug 24UV 8
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug8Very high
Sep8Very high
Oct13Extreme
Nov13Extreme
Dec12Extreme

Air quality in Feijó 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 Feijó is worst in September — around 80 µg/m³ PM2.5 (unhealthy), about 11.8× the cleanest month (June, 7 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodUnhealthyModerateGoodSep 1276 µg/m³Jun 117 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr10Good
May8Good
Jun7Good
Jul10Good
Aug57Unhealthy
Sep80Unhealthy
Oct15Moderate
Nov12Good
Dec10Good
Location & terrain

Where is Feijó?

Feijó sits at 8.2°S, 70.4°W, 160 m above sea level, in Brazil. The nearest listed city is Tarauacá, 45 km away.

Cruzeiro do SulMarechal ThaumaturgoMâncio LimaBoca do Acre

Topography around Feijó

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

Within 3 km, the terrain around Feijó has only modest variations in elevation — a maximum elevation change of 38 m around an average of 164 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 119 m; within 80 km, only modest variations in elevation — a maximum elevation change of 188 m.

The land around Feijó is covered by grassland (50%) and trees (37%) within 3 km, trees (69%) and grassland (30%) within 16 km, and trees (93%) within 80 km.

3 km
38 m
16 km
119 m
80 km
188 m
treesgrasslandartificial surfaceswater
December weather nearby: Tarauacá 45 km · Eirunepé 176 km · Ipixuna 193 km · Sena Madureira 210 km · Cruzeiro do Sul 263 km · Marechal Thaumaturgo 281 km · Mâncio Lima 286 km · Boca do Acre 332 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 Feijó (-8.1654°, -70.3549°, elevation 160 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).