Bariloche weather in December

In December, Bariloche sees average daytime highs of 17°C and overnight lows near 5°C, with 47 mm of precipitation across 6.8 wet days and about 14.9 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 18°C by the end. The sky is clear or mostly clear about 40% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of December to 14 h 54 min by month's end. Set against the rest of the year, December is Bariloche's 3rd-clearest and 1st-windiest month. For the whole year in context, see Bariloche's year-round climate.

Daytime high: 17°; 3rd warmest
Overnight low: 5°; 9th coldest
Precipitation: 47 mm; 6.8 wet days
Daylight: 14 h 54 min; 6:13 AM – 9:10 PM
Cloud cover: 48%; 3rd clearest
Wind: 11 km/h; 1st windiest
Solar energy: 7.97 kWh/m²
Travel score: 6.0; out of 10

Bariloche is city in the province of Río Negro in Argentina.

Density: 433/km²; people per km²
Founded: 1902

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← November Bariloche year-round climate January →Best places to visit in December

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 18°C by the end.

A typical December day in Bariloche reaches about 17°C in the afternoon and slips back to 5°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 24°C. Set against its neighbours, December runs about 3°C warmer than November and about 3°C cooler than January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	15	16	16	16	16	16	16	16	16	16	16	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18
Avg low (°C)	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6

	Avg high (°C)	Avg low (°C)
1	15	4
2	16	4
3	16	4
4	16	4
5	16	4
6	16	4
7	16	4
8	16	4
9	16	4
10	16	4
11	16	5
12	17	5
13	17	5
14	17	5
15	17	5
16	17	5
17	17	5
18	17	5
19	17	5
20	17	5
21	17	5
22	17	5
23	17	5
24	18	5
25	18	5
26	18	5
27	18	6
28	18	6
29	18	6
30	18	6
31	18	6

How December really feels in Bariloche

Once humidity and wind are folded in, December averages 0 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Bariloche weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	19° / 7°	31	5.2	0.4	14.6	7.2
Feb	19° / 7°	33	5	0.2	13.6	7.2
Mar	16° / 5°	41	7	0.5	12.3	5.7
Apr	11° / 2°	74	8.7	2.6	10.9	2.9
May	7° / 0°	119	13	6.2	9.7	0.8
Jun	4° / -2°	172	16	13.3	9.1	0.0
Jul	3° / -3°	140	14.5	13.7	9.3	0.0
Aug	4° / -3°	131	14.5	12.8	10.4	0.0
Sep	7° / -1°	68	10.3	7.8	11.7	0.7
Oct	10° / 0°	70	10.2	5.9	13.1	2.2
Nov	13° / 2°	52	8.3	2.6	14.3	4.0
Dec	17° / 5°	47	6.8	1.1	14.9	6.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 41%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	55	56	56	56	57	57	56	57	57	57	57	57	57	57	58	57	58	58	58	59	59	60	60	61	62	62	63	63	63	63	64
Cloudier (%)	45	44	44	44	43	43	44	43	43	43	43	43	43	43	42	43	42	42	42	41	41	40	40	39	38	38	37	37	37	37	36

	Clearer (%)	Cloudier (%)
1	55	45
2	56	44
3	56	44
4	56	44
5	57	43
6	57	43
7	56	44
8	57	43
9	57	43
10	57	43
11	57	43
12	57	43
13	57	43
14	57	43
15	58	42
16	57	43
17	58	42
18	58	42
19	58	42
20	59	41
21	59	41
22	60	40
23	60	40
24	61	39
25	62	38
26	62	38
27	63	37
28	63	37
29	63	37
30	63	37
31	64	36

Chance of precipitation in December

Any precipitationSnow

Bariloche gets around 47 mm of rain and snow over 6.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 22% and peaks near 24% on the wettest days, and about 1 day brings snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	24	23	23	23	22	22	22	21	21	21	21	21	21	21	21	21	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22
Snow chance (%)	5	5	5	5	5	5	4	4	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3	3	3	3	3	2	2	2

	Rain chance (%)	Snow chance (%)
1	24	5
2	23	5
3	23	5
4	23	5
5	22	5
6	22	5
7	22	4
8	21	4
9	21	4
10	21	4
11	21	4
12	21	4
13	21	4
14	21	4
15	21	4
16	21	4
17	22	4
18	22	4
19	22	4
20	22	3
21	22	3
22	22	3
23	22	3
24	22	3
25	22	3
26	22	3
27	22	3
28	22	3
29	22	2
30	22	2
31	22	2

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in December

Winds average 11 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	10	calm
2	10	calm
3	10	calm
4	10	calm
5	10	calm
6	10	calm
7	10	calm
8	11	calm
9	11	calm
10	11	calm
11	11	calm
12	11	calm
13	11	calm
14	11	calm
15	11	calm
16	11	calm
17	11	calm
18	11	calm
19	11	calm
20	11	calm
21	11	calm
22	11	calm
23	11	calm
24	11	calm
25	11	calm
26	11	calm
27	11	calm
28	11	calm
29	11	calm
30	11	calm
31	11	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 42 min at the start of December to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over December. Sunrise moves from 6:13 AM to 6:21 AM, and sunset from 8:57 PM to 9:16 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	14.7	14.8	14.8	14.8	14.8	14.8	14.9	14.9	14.9	14.9	14.9	14.9	14.9	14.9	14.9	14.9	15.0	15.0	15.0	15.0	15.0	15.0	15.0	15.0	15.0	15.0	15.0	14.9	14.9	14.9	14.9
Sunrise (AM)	6:13	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:13	6:13	6:13	6:14	6:14	6:14	6:15	6:15	6:16	6:16	6:17	6:17	6:18	6:19	6:19	6:20	6:21
Sunset (PM)	8:57	8:58	8:59	9:00	9:01	9:02	9:03	9:04	9:05	9:06	9:06	9:07	9:08	9:09	9:09	9:10	9:11	9:11	9:12	9:12	9:13	9:13	9:14	9:14	9:15	9:15	9:15	9:15	9:16	9:16	9:16

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.7	6:13	8:57
2	14.8	6:12	8:58
3	14.8	6:12	8:59
4	14.8	6:12	9:00
5	14.8	6:12	9:01
6	14.8	6:12	9:02
7	14.9	6:12	9:03
8	14.9	6:12	9:04
9	14.9	6:12	9:05
10	14.9	6:12	9:06
11	14.9	6:12	9:06
12	14.9	6:12	9:07
13	14.9	6:12	9:08
14	14.9	6:12	9:09
15	14.9	6:13	9:09
16	14.9	6:13	9:10
17	15.0	6:13	9:11
18	15.0	6:14	9:11
19	15.0	6:14	9:12
20	15.0	6:14	9:12
21	15.0	6:15	9:13
22	15.0	6:15	9:13
23	15.0	6:16	9:14
24	15.0	6:16	9:14
25	15.0	6:17	9:15
26	15.0	6:17	9:15
27	15.0	6:18	9:15
28	14.9	6:19	9:15
29	14.9	6:19	9:16
30	14.9	6:20	9:16
31	14.9	6:21	9:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.97 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.54 kWh/m² to a high of 7.97 kWh/m² in December across the year — December's 7.97 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	7.7	7.7	7.7	7.8	7.8	7.8	7.8	7.8	7.9	7.9	7.9	7.9	7.9	7.9	8.0	8.0	8.0	8.0	8.0	8.0	8.0	8.1	8.1	8.1	8.1	8.1	8.1	8.1	8.1	8.1	8.1
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	7.7	Intense
2	7.7	Intense
3	7.7	Intense
4	7.8	Intense
5	7.8	Intense
6	7.8	Intense
7	7.8	Intense
8	7.8	Intense
9	7.9	Intense
10	7.9	Intense
11	7.9	Intense
12	7.9	Intense
13	7.9	Intense
14	7.9	Intense
15	8.0	Intense
16	8.0	Intense
17	8.0	Intense
18	8.0	Intense
19	8.0	Intense
20	8.0	Intense
21	8.0	Intense
22	8.1	Intense
23	8.1	Intense
24	8.1	Intense
25	8.1	Intense
26	8.1	Intense
27	8.1	Intense
28	8.1	Intense
29	8.1	Intense
30	8.1	Intense
31	8.1	Intense

Planning a trip in December

Hazard calendar for Bariloche

In seasonPeak

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

Bariloche's rainy season runs May–August, 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 Bariloche?

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

6.0

Sightseeing

3rd-best month of the year

1.3

Beach & pool

3rd-best month of the year

December is a reasonable time to visit Bariloche for sightseeing.

What to pack for Bariloche in December

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

In December, Bariloche sees daytime highs around 17°C and nights near 5°C. Pack sun protection. Worth having: a warm layer. About 7 days see rain.

sun protectiona warm layer

UV index in Bariloche 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 Bariloche peaks around December 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	12	12	8	5	3	2	2	3	5	8	10	13
Level	Extreme	Extreme	Very high	Moderate	Moderate	Low	Moderate	Moderate	High	Very high	Very high	Extreme

	UV index (midday)	Level
Jan	12	Extreme
Feb	12	Extreme
Mar	8	Very high
Apr	5	Moderate
May	3	Moderate
Jun	2	Low
Jul	2	Moderate
Aug	3	Moderate
Sep	5	High
Oct	8	Very high
Nov	10	Very high
Dec	13	Extreme

Location & terrain

Where is Bariloche?

Bariloche sits at 41.1°S, 71.3°W, 839 m above sea level, in Argentina. The nearest listed city is El Bolsón, 93 km away.

Topography around Bariloche

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

Within 3 km, the terrain around Bariloche has significant variations in elevation — a maximum elevation change of 427 m around an average of 865 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,452 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,290 m.

The land around Bariloche is covered by artificial surfaces (40%) and trees (23%) within 3 km, grassland (36%), trees (30%) and water (22%) within 16 km, and grassland (44%) and trees (37%) within 80 km.

3 km

427 m

artificial surfaces 40%

16 km

1,452 m

grassland 36%

80 km

3,290 m

grassland 44%

treesshrubsgrasslandartificial surfacesbare terrainwater

← November Bariloche year-round climate January →Best places to visit in December

December weather nearby: El Bolsón 93 km · San Martín de los Andes 110 km · Puerto Montt 141 km · Puerto Varas 142 km · Llanquihue 143 km · Frutillar 147 km · Purranque 157 km · Río Bueno 165 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

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 Bariloche (-41.1456°, -71.3082°, elevation 839 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	15	4
2	16	4
3	16	4
4	16	4
5	16	4
6	16	4
7	16	4
8	16	4
9	16	4
10	16	4
11	16	5
12	17	5
13	17	5
14	17	5
15	17	5
16	17	5
17	17	5
18	17	5
19	17	5
20	17	5
21	17	5
22	17	5
23	17	5
24	18	5
25	18	5
26	18	5
27	18	6
28	18	6
29	18	6
30	18	6
31	18	6

	Clearer (%)	Cloudier (%)
1	55	45
2	56	44
3	56	44
4	56	44
5	57	43
6	57	43
7	56	44
8	57	43
9	57	43
10	57	43
11	57	43
12	57	43
13	57	43
14	57	43
15	58	42
16	57	43
17	58	42
18	58	42
19	58	42
20	59	41
21	59	41
22	60	40
23	60	40
24	61	39
25	62	38
26	62	38
27	63	37
28	63	37
29	63	37
30	63	37
31	64	36

	Rain chance (%)	Snow chance (%)
1	24	5
2	23	5
3	23	5
4	23	5
5	22	5
6	22	5
7	22	4
8	21	4
9	21	4
10	21	4
11	21	4
12	21	4
13	21	4
14	21	4
15	21	4
16	21	4
17	22	4
18	22	4
19	22	4
20	22	3
21	22	3
22	22	3
23	22	3
24	22	3
25	22	3
26	22	3
27	22	3
28	22	3
29	22	2
30	22	2
31	22	2

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	15	4
2	16	4
3	16	4
4	16	4
5	16	4
6	16	4
7	16	4
8	16	4
9	16	4
10	16	4
11	16	5
12	17	5
13	17	5
14	17	5
15	17	5
16	17	5
17	17	5
18	17	5
19	17	5
20	17	5
21	17	5
22	17	5
23	17	5
24	18	5
25	18	5
26	18	5
27	18	6
28	18	6
29	18	6
30	18	6
31	18	6

	Clearer (%)	Cloudier (%)
1	55	45
2	56	44
3	56	44
4	56	44
5	57	43
6	57	43
7	56	44
8	57	43
9	57	43
10	57	43
11	57	43
12	57	43
13	57	43
14	57	43
15	58	42
16	57	43
17	58	42
18	58	42
19	58	42
20	59	41
21	59	41
22	60	40
23	60	40
24	61	39
25	62	38
26	62	38
27	63	37
28	63	37
29	63	37
30	63	37
31	64	36

	Rain chance (%)	Snow chance (%)
1	24	5
2	23	5
3	23	5
4	23	5
5	22	5
6	22	5
7	22	4
8	21	4
9	21	4
10	21	4
11	21	4
12	21	4
13	21	4
14	21	4
15	21	4
16	21	4
17	22	4
18	22	4
19	22	4
20	22	3
21	22	3
22	22	3
23	22	3
24	22	3
25	22	3
26	22	3
27	22	3
28	22	3
29	22	2
30	22	2
31	22	2

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	15	4
2	16	4
3	16	4
4	16	4
5	16	4
6	16	4
7	16	4
8	16	4
9	16	4
10	16	4
11	16	5
12	17	5
13	17	5
14	17	5
15	17	5
16	17	5
17	17	5
18	17	5
19	17	5
20	17	5
21	17	5
22	17	5
23	17	5
24	18	5
25	18	5
26	18	5
27	18	6
28	18	6
29	18	6
30	18	6
31	18	6

	Clearer (%)	Cloudier (%)
1	55	45
2	56	44
3	56	44
4	56	44
5	57	43
6	57	43
7	56	44
8	57	43
9	57	43
10	57	43
11	57	43
12	57	43
13	57	43
14	57	43
15	58	42
16	57	43
17	58	42
18	58	42
19	58	42
20	59	41
21	59	41
22	60	40
23	60	40
24	61	39
25	62	38
26	62	38
27	63	37
28	63	37
29	63	37
30	63	37
31	64	36

	Rain chance (%)	Snow chance (%)
1	24	5
2	23	5
3	23	5
4	23	5
5	22	5
6	22	5
7	22	4
8	21	4
9	21	4
10	21	4
11	21	4
12	21	4
13	21	4
14	21	4
15	21	4
16	21	4
17	22	4
18	22	4
19	22	4
20	22	3
21	22	3
22	22	3
23	22	3
24	22	3
25	22	3
26	22	3
27	22	3
28	22	3
29	22	2
30	22	2
31	22	2

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100