Cobija weather in December

In December, Cobija sees average daytime highs of 30°C and overnight lows near 23°C, with 257 mm of rain across 25.5 wet days and about 12.6 hours of daylight. It is the 6th-warmest and 3rd-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 2% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of December to 12 h 36 min by month's end. Set against the rest of the year, December is Cobija's 9th-clearest and 1st-windiest month. For the whole year in context, see Cobija's year-round climate.

Daytime high
30°
6th warmest
Overnight low
23°
12th coldest
Rainfall
257 mm
25.5 wet days
Daylight
12 h 36 min
6:12 AM – 6:51 PM
Cloud cover
86%
9th clearest
Wind
7 km/h
1st windiest
Solar energy
4.94 kWh/m²
Travel score
2.9
out of 10

Cobija is city and municipality of Bolivia.

Density
66/km²
people per km²
Founded
1906

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 Cobija 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 33°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
63123
73123
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 Cobija

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.

Cobija weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°26326.712.62.9
Feb30° / 22°26524.712.42.9
Mar30° / 22°25526.212.13.0
Apr30° / 22°15320.311.83.6
May29° / 21°771411.54.7
Jun30° / 20°377.411.45.5
Jul31° / 19°285.711.45.4
Aug32° / 20°447.211.64.2
Sep33° / 21°9613.811.93.3
Oct32° / 22°17120.612.23.0
Nov31° / 22°22022.212.53.0
Dec30° / 23°25725.512.62.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% 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 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1991
2991
3991
4991
5991
6892
7892
8892
9892
10892
11892
12892
13892
14892
15892
16892
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27892
28892
29892
30892
31892

Chance of precipitation in December

Any precipitation

Cobija gets around 257 mm of rain over 25.5 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 82% and peaks near 83% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
181
282
382
483
583
683
783
883
983
1082
1182
1282
1382
1481
1581
1681
1781
1881
1981
2081
2181
2282
2382
2482
2582
2682
2782
2882
2982
3082
3182

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 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
118514
218514
318613
418613
518613
618613
718712
818712
918712
1018811
1118811
1218910
1318910
1418910
1518910
161909
171909
181918
191918
201918
211927
221927
231927
241936
251936
261936
271936
281936
291936
301936
310946

Wind in December

Winds average 7 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 7 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
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 36 min at the start of December to 12 h 36 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 6:07 AM to 6:19 AM, and sunset from 6:43 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:076:43
212.66:076:43
312.66:076:44
412.66:086:44
512.66:086:45
612.66:086:45
712.66:096:46
812.66:096:46
912.66:096:47
1012.66:106:47
1112.66:106:48
1212.66:106:48
1312.66:116:49
1412.66:116:49
1512.66:126:50
1612.66:126:51
1712.66:126:51
1812.66:136:52
1912.66:136:52
2012.66:146:52
2112.66:146:53
2212.66:156:53
2312.66:156:54
2412.66:166:54
2512.66:166:55
2612.66:176:55
2712.66:176:56
2812.66:186:56
2912.66:186:57
3012.66:196:57
3112.66:196:57

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.94 kWh/m².

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 5.53 kWh/m² in September across the year — December's 4.94 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Cobija

In seasonPeak

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

Cobija'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 Cobija?

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

2.9
Sightseeing
10th-best month of the year
4.2
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Cobija.

What to pack for Cobija in December

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

In December, Cobija sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

UV index in Cobija 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 Cobija peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 12 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 10UV 15Sep 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May11Extreme
Jun9Very high
Jul8Very high
Aug8Very high
Sep6High
Oct12Extreme
Nov13Extreme
Dec14Extreme

Air quality in Cobija 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 Cobija is worst in September — around 65 µg/m³ PM2.5 (unhealthy), about 9.7× the cleanest month (June, 7 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateModerateGoodSep 1661 µg/m³Jun 127 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr10Good
May7Good
Jun7Good
Jul9Good
Aug28Moderate
Sep65Unhealthy
Oct26Moderate
Nov13Moderate
Dec10Good
Location & terrain

Where is Cobija?

Cobija sits at 11.0°S, 68.8°W, 200 m above sea level, in Bolivia. The nearest listed city is Brasiléia, 3.0 km away.

Senador GuiomardRio BrancoPuerto MaldonadoPlácido de CastroTambopata

Topography around Cobija

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

Within 3 km, the terrain around Cobija has only modest variations in elevation — a maximum elevation change of 72 m around an average of 209 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 131 m; within 80 km, only modest variations in elevation — a maximum elevation change of 234 m.

The land around Cobija is covered by trees (47%), artificial surfaces (30%) and grassland (20%) within 3 km, grassland (50%) and trees (48%) within 16 km, and trees (84%) within 80 km.

3 km
72 m
16 km
131 m
80 km
234 m
treesgrasslandartificial surfacesbare terrainwater
December weather nearby: Brasiléia 3.0 km · Epitaciolândia 3.0 km · Xapuri 51 km · Senador Guiomard 149 km · Rio Branco 157 km · Puerto Maldonado 180 km · Plácido de Castro 189 km · Tambopata 194 km

Bolivia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 40% of US
price level, 2025
GDP per capita
$5,148
2025
Happiness
5.8 / 10
World Happiness, 2025
Homicide rate
4.4
per 100k, 2023
Road deaths
21.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 521
Religion
Roman Catholic 65%Protestant 20%none 6%other 5%

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 Cobija (-11.0267°, -68.7692°, elevation 200 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).