Bella Vista weather in December

In December, Bella Vista sees average daytime highs of 29°C and overnight lows near 19°C, with 255 mm of rain across 18.2 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 20% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 36 min at the start of December to 13 h 42 min by month's end. Set against the rest of the year, December is Bella Vista's 9th-clearest and 4th-windiest month. For the whole year in context, see Bella Vista's year-round climate.

Daytime high
29°
1st warmest
Overnight low
19°
10th coldest
Rainfall
255 mm
18.2 wet days
Daylight
13 h 42 min
6:27 AM – 8:08 PM
Cloud cover
63%
9th clearest
Wind
5 km/h
4th windiest
Solar energy
6.11 kWh/m²
Travel score
4.6
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Bella Vista reaches about 29°C in the afternoon and slips back to 19°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12818
22818
32818
42819
52819
62819
72819
82819
92819
102819
112819
122819
132919
142919
152919
162919
172919
182919
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292920
302920
312920

Bella Vista weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°32119.213.54.4
Feb27° / 19°25317.8135.0
Mar26° / 18°25419.712.25.2
Apr23° / 15°17215.211.46.0
May20° / 11°11413.210.75.9
Jun18° / 639.210.36.0
Jul18° / 417.210.56.6
Aug21° / 406.3117.6
Sep24° / 12°728.411.87.5
Oct26° / 15°15314.112.66.2
Nov28° / 18°19515.813.35.5
Dec29° / 19°25518.213.74.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 24% of December, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34555
44456
54456
64456
74357
84357
94456
104456
114456
124555
134555
144555
154555
164654
174654
184654
194654
204654
214555
224555
234555
244456
254456
264456
274357
284258
294159
304258
314159

Chance of precipitation in December

Any precipitation

Bella Vista gets around 255 mm of rain over 18.2 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 59% and peaks near 62% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
160
260
361
461
562
662
762
862
961
1061
1161
1260
1360
1459
1558
1658
1757
1857
1956
2056
2156
2256
2356
2456
2557
2657
2758
2858
2959
3059
3160

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the muggy band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
161744293
261744303
351643314
451643324
551642334
651541345
751539365
851438376
951437386
1041436397
1141335417
1241334428
1341233438
1441132449
15411314510
16410304510
17410294611
1849284712
1949274713
2048264814
2148254815
2248244916
2337235016
2437225117
2537225018
2637215019
2736215020
2826205121
2926205022
3025204923
3125204925

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 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
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 13 h 36 min at the start of December to 13 h 42 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 6:24 AM to 6:34 AM, and sunset from 7:58 PM to 8:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:247:58
213.66:247:59
313.66:248:00
413.66:248:01
513.66:248:01
613.66:248:02
713.66:248:03
813.66:248:03
913.76:258:04
1013.76:258:05
1113.76:258:05
1213.76:258:06
1313.76:268:06
1413.76:268:07
1513.76:268:08
1613.76:278:08
1713.76:278:09
1813.76:278:09
1913.76:288:10
2013.76:288:10
2113.76:298:11
2213.76:298:11
2313.76:308:12
2413.76:308:12
2513.76:318:13
2613.76:318:13
2713.76:328:13
2813.76:328:14
2913.76:338:14
3013.76:338:14
3113.76:348:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.11 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.96 kWh/m² to a high of 6.11 kWh/m² in December across the year — December's 6.11 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
86.0Bright
96.0Bright
106.0Intense
116.0Intense
126.0Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.1Intense
316.1Intense
Planning a trip in December

Hazard calendar for Bella Vista

In seasonPeak

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

Bella Vista'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 Bella Vista?

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

4.6
Sightseeing
11th-best month of the year
5.6
Beach & pool
4th-best month of the year

December is a reasonable time to visit Bella Vista for sightseeing.

What to pack for Bella Vista in December

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

In December, Bella Vista sees daytime highs around 29°C and nights near 19°C. Pack light clothes, rain gear and sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Bella Vista in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bella Vista peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeHighModerateHighVery highExtremeJan 19UV 14Jun 23UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr7Very high
May5High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct12Extreme
Nov12Extreme
Dec13Extreme

Air quality in Bella Vista 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 Bella Vista is worst in August — around 37 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (May, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateGoodAug 2437 µg/m³May 1010 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb12Moderate
Mar11Good
Apr10Good
May10Good
Jun12Good
Jul22Moderate
Aug37Poor
Sep36Poor
Oct22Moderate
Nov13Moderate
Dec11Good
Location & terrain

Where is Bella Vista?

Bella Vista sits at 27.0°S, 65.3°W, 366 m above sea level, in Argentina. The nearest listed city is Famaillá, 10 km away.

Topography around Bella Vista

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

Within 3 km, the terrain around Bella Vista has only modest variations in elevation — a maximum elevation change of 19 m around an average of 359 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 538 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,157 m.

The land around Bella Vista is covered by cropland (70%) within 3 km, cropland (69%) and trees (20%) within 16 km, and trees (38%) and cropland (37%) within 80 km.

3 km
19 m
16 km
538 m
80 km
5,157 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Famaillá 10 km · Monteros 25 km · Yerba Buena 25 km · San Miguel de Tucuman 26 km · Alderetes 29 km · Tafí Viejo 34 km · Aguilares 54 km · Termas de Río Hondo 67 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

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 Bella Vista (-27.0342°, -65.302°, elevation 366 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).