Viacha weather in December

In December, Viacha sees average daytime highs of 16°C and overnight lows near 5°C, with 110 mm of precipitation across 20.9 wet days and about 13 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 15°C by the end. The sky is clear or mostly clear about 3% of the time in December, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of December to 13 hours by month's end. Set against the rest of the year, December is Viacha's 10th-clearest and 7th-windiest month. For the whole year in context, see Viacha's year-round climate.

Daytime high: 16°; 4th warmest
Overnight low: 5°; 12th coldest
Precipitation: 110 mm; 20.9 wet days
Daylight: 13 hours; 6:00 AM – 6:59 PM
Cloud cover: 86%; 10th clearest
Wind: 6 km/h; 7th windiest
Solar energy: 6.71 kWh/m²
Travel score: 3.5; out of 10

Viacha is city in Bolivia.

Density: 18,344/km²; people per km²

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

← November Viacha 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 ease over the month, from about 16°C in the first days to 15°C by the end.

A typical December day in Viacha reaches about 16°C in the afternoon and slips back to 5°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 18°C. Set against its neighbours, December runs about 1°C cooler than November and about 1°C warmer 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)	17	17	17	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15	15	15	15	15	15	15	15	15
Avg low (°C)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5

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

How December really feels in Viacha

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.

Viacha weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	15° / 5°	143	24.8	0.6	12.9	2.7
Feb	15° / 5°	124	22.6	0.4	12.6	2.7
Mar	15° / 4°	96	22.4	0.1	12.1	3.1
Apr	15° / 3°	46	13.6	0.1	11.6	4.2
May	16° / 0°	14	4.8	0.1	11.2	5.7
Jun	15° / -2°	8	2.5	0.3	11	5.7
Jul	15° / -2°	11	3	0.9	11.1	5.6
Aug	16° / -1°	17	4.5	0.9	11.4	5.7
Sep	16° / 1°	32	9.6	0.6	11.9	5.4
Oct	17° / 3°	53	13.3	0.5	12.4	5.0
Nov	17° / 4°	58	13.9	0.1	12.8	4.8
Dec	16° / 5°	110	20.9	0.5	13	3.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 7% of December, with mostly cloudy or overcast conditions the remaining 90%.

	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 (%)	15	15	14	14	13	13	12	12	13	12	11	11	11	12	11	11	11	10	10	9	9	9	7	7	7	7	5	5	6	6	6
Cloudier (%)	85	85	86	86	87	87	88	88	87	88	89	89	89	88	89	89	89	90	90	91	91	91	93	93	93	93	95	95	94	94	94

	Clearer (%)	Cloudier (%)
1	15	85
2	15	85
3	14	86
4	14	86
5	13	87
6	13	87
7	12	88
8	12	88
9	13	87
10	12	88
11	11	89
12	11	89
13	11	89
14	12	88
15	11	89
16	11	89
17	11	89
18	10	90
19	10	90
20	9	91
21	9	91
22	9	91
23	7	93
24	7	93
25	7	93
26	7	93
27	5	95
28	5	95
29	6	94
30	6	94
31	6	94

Chance of precipitation in December

Any precipitationSnow

Viacha gets around 110 mm of rain and snow over 20.9 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 67% and peaks near 81% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

	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 (%)	54	55	56	56	57	57	58	59	59	60	61	62	63	64	64	65	66	68	69	71	72	74	75	77	78	79	80	80	81	81	81
Snow chance (%)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2

	Rain chance (%)	Snow chance (%)
1	54	1
2	55	1
3	56	1
4	56	1
5	57	1
6	57	1
7	58	1
8	59	1
9	59	1
10	60	1
11	61	1
12	62	1
13	63	1
14	64	1
15	64	1
16	65	1
17	66	1
18	68	1
19	69	1
20	71	1
21	72	1
22	74	1
23	75	2
24	77	2
25	78	2
26	79	2
27	80	2
28	80	2
29	81	2
30	81	2
31	81	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 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 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)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
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	6	calm
2	6	calm
3	6	calm
4	6	calm
5	6	calm
6	6	calm
7	6	calm
8	6	calm
9	6	calm
10	6	calm
11	6	calm
12	6	calm
13	6	calm
14	6	calm
15	6	calm
16	6	calm
17	6	calm
18	6	calm
19	6	calm
20	6	calm
21	6	calm
22	6	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	6	calm
30	6	calm
31	6	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 54 min at the start of December to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:55 AM to 6:07 AM, and sunset from 6:51 PM to 7:06 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)	12.9	12.9	12.9	12.9	12.9	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0	13.0
Sunrise (AM)	5:55	5:55	5:56	5:56	5:56	5:56	5:57	5:57	5:57	5:58	5:58	5:58	5:59	5:59	5:59	6:00	6:00	6:01	6:01	6:01	6:02	6:02	6:03	6:03	6:04	6:04	6:05	6:05	6:06	6:06	6:07
Sunset (PM)	6:51	6:51	6:52	6:52	6:53	6:53	6:54	6:55	6:55	6:56	6:56	6:57	6:57	6:58	6:58	6:59	7:00	7:00	7:01	7:01	7:01	7:02	7:02	7:03	7:03	7:04	7:04	7:05	7:05	7:05	7:06

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.9	5:55	6:51
2	12.9	5:55	6:51
3	12.9	5:56	6:52
4	12.9	5:56	6:52
5	12.9	5:56	6:53
6	13.0	5:56	6:53
7	13.0	5:57	6:54
8	13.0	5:57	6:55
9	13.0	5:57	6:55
10	13.0	5:58	6:56
11	13.0	5:58	6:56
12	13.0	5:58	6:57
13	13.0	5:59	6:57
14	13.0	5:59	6:58
15	13.0	5:59	6:58
16	13.0	6:00	6:59
17	13.0	6:00	7:00
18	13.0	6:01	7:00
19	13.0	6:01	7:01
20	13.0	6:01	7:01
21	13.0	6:02	7:01
22	13.0	6:02	7:02
23	13.0	6:03	7:02
24	13.0	6:03	7:03
25	13.0	6:04	7:03
26	13.0	6:04	7:04
27	13.0	6:05	7:04
28	13.0	6:05	7:05
29	13.0	6:06	7:05
30	13.0	6:06	7:05
31	13.0	6:07	7:06

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.71 kWh/m².

For context, solar energy here swings from a low near 5.44 kWh/m² to a high of 7.44 kWh/m² in November across the year — December's 6.71 kWh/m² falls in the middle.

	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)	7.1	7.0	7.0	7.0	7.0	7.0	6.9	6.9	6.9	6.9	6.9	6.8	6.8	6.8	6.8	6.8	6.7	6.7	6.7	6.6	6.6	6.6	6.5	6.5	6.5	6.5	6.4	6.4	6.4	6.4	6.3
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	7.1	Intense
2	7.0	Intense
3	7.0	Intense
4	7.0	Intense
5	7.0	Intense
6	7.0	Intense
7	6.9	Intense
8	6.9	Intense
9	6.9	Intense
10	6.9	Intense
11	6.9	Intense
12	6.8	Intense
13	6.8	Intense
14	6.8	Intense
15	6.8	Intense
16	6.8	Intense
17	6.7	Intense
18	6.7	Intense
19	6.7	Intense
20	6.6	Intense
21	6.6	Intense
22	6.6	Intense
23	6.5	Intense
24	6.5	Intense
25	6.5	Intense
26	6.5	Intense
27	6.4	Intense
28	6.4	Intense
29	6.4	Intense
30	6.4	Intense
31	6.3	Intense

Planning a trip in December

Hazard calendar for Viacha

In seasonPeak

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

Viacha's rainy season runs December–March, 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 Viacha?

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

3.5

Sightseeing

9th-best month of the year

—

Beach & pool

never really warm enough

December is a weaker month for outdoor sightseeing in Viacha.

What to pack for Viacha in December

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

In December, Viacha sees daytime highs around 16°C and nights near 5°C. Pack rain gear and sun protection. Worth having: a warm layer. About 21 days see rain.

rain gearsun protectiona warm layer

UV index in Viacha in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 18 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Viacha peaks around February 8 at about 19 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 9 at about 9 (very high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	19	19	17	14	11	9	9	13	15	17	17	18
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	19	Extreme
Feb	19	Extreme
Mar	17	Extreme
Apr	14	Extreme
May	11	Extreme
Jun	9	Very high
Jul	9	Very high
Aug	13	Extreme
Sep	15	Extreme
Oct	17	Extreme
Nov	17	Extreme
Dec	18	Extreme

Location & terrain

Where is Viacha?

Viacha sits at 16.6°S, 68.3°W, 3,870 m above sea level, in Bolivia. The nearest listed city is Laja, 16 km away.

Topography around Viacha

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

Within 3 km, the terrain around Viacha has only modest variations in elevation — a maximum elevation change of 115 m around an average of 3,856 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 360 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,498 m.

The land around Viacha is covered by cropland (45%) and grassland (36%) within 3 km, grassland (43%) and cropland (43%) within 16 km, and grassland (65%) within 80 km.

3 km

115 m

cropland 45%

16 km

360 m

grassland 43%

80 km

5,498 m

grassland 65%

treesgrasslandcroplandartificial surfacesbare terrainsnow and icewaterwetland

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

December weather nearby: Laja 16 km · Achocalla 18 km · La Paz 23 km · Tiahuanaco 42 km · Copacabana 99 km · Sorata 104 km · Isla del Sol 113 km · Caranavi 120 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

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 Viacha (-16.65°, -68.3°, elevation 3,870 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	17	5
2	17	5
3	17	5
4	16	5
5	16	5
6	16	5
7	16	5
8	16	5
9	16	5
10	16	5
11	16	5
12	16	5
13	16	5
14	16	5
15	16	5
16	16	5
17	16	5
18	16	5
19	16	5
20	15	5
21	15	5
22	15	5
23	15	5
24	15	5
25	15	5
26	15	5
27	15	5
28	15	5
29	15	5
30	15	5
31	15	5

	Clearer (%)	Cloudier (%)
1	15	85
2	15	85
3	14	86
4	14	86
5	13	87
6	13	87
7	12	88
8	12	88
9	13	87
10	12	88
11	11	89
12	11	89
13	11	89
14	12	88
15	11	89
16	11	89
17	11	89
18	10	90
19	10	90
20	9	91
21	9	91
22	9	91
23	7	93
24	7	93
25	7	93
26	7	93
27	5	95
28	5	95
29	6	94
30	6	94
31	6	94

	Rain chance (%)	Snow chance (%)
1	54	1
2	55	1
3	56	1
4	56	1
5	57	1
6	57	1
7	58	1
8	59	1
9	59	1
10	60	1
11	61	1
12	62	1
13	63	1
14	64	1
15	64	1
16	65	1
17	66	1
18	68	1
19	69	1
20	71	1
21	72	1
22	74	1
23	75	2
24	77	2
25	78	2
26	79	2
27	80	2
28	80	2
29	81	2
30	81	2
31	81	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	17	5
2	17	5
3	17	5
4	16	5
5	16	5
6	16	5
7	16	5
8	16	5
9	16	5
10	16	5
11	16	5
12	16	5
13	16	5
14	16	5
15	16	5
16	16	5
17	16	5
18	16	5
19	16	5
20	15	5
21	15	5
22	15	5
23	15	5
24	15	5
25	15	5
26	15	5
27	15	5
28	15	5
29	15	5
30	15	5
31	15	5

	Clearer (%)	Cloudier (%)
1	15	85
2	15	85
3	14	86
4	14	86
5	13	87
6	13	87
7	12	88
8	12	88
9	13	87
10	12	88
11	11	89
12	11	89
13	11	89
14	12	88
15	11	89
16	11	89
17	11	89
18	10	90
19	10	90
20	9	91
21	9	91
22	9	91
23	7	93
24	7	93
25	7	93
26	7	93
27	5	95
28	5	95
29	6	94
30	6	94
31	6	94

	Rain chance (%)	Snow chance (%)
1	54	1
2	55	1
3	56	1
4	56	1
5	57	1
6	57	1
7	58	1
8	59	1
9	59	1
10	60	1
11	61	1
12	62	1
13	63	1
14	64	1
15	64	1
16	65	1
17	66	1
18	68	1
19	69	1
20	71	1
21	72	1
22	74	1
23	75	2
24	77	2
25	78	2
26	79	2
27	80	2
28	80	2
29	81	2
30	81	2
31	81	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	17	5
2	17	5
3	17	5
4	16	5
5	16	5
6	16	5
7	16	5
8	16	5
9	16	5
10	16	5
11	16	5
12	16	5
13	16	5
14	16	5
15	16	5
16	16	5
17	16	5
18	16	5
19	16	5
20	15	5
21	15	5
22	15	5
23	15	5
24	15	5
25	15	5
26	15	5
27	15	5
28	15	5
29	15	5
30	15	5
31	15	5

	Clearer (%)	Cloudier (%)
1	15	85
2	15	85
3	14	86
4	14	86
5	13	87
6	13	87
7	12	88
8	12	88
9	13	87
10	12	88
11	11	89
12	11	89
13	11	89
14	12	88
15	11	89
16	11	89
17	11	89
18	10	90
19	10	90
20	9	91
21	9	91
22	9	91
23	7	93
24	7	93
25	7	93
26	7	93
27	5	95
28	5	95
29	6	94
30	6	94
31	6	94

	Rain chance (%)	Snow chance (%)
1	54	1
2	55	1
3	56	1
4	56	1
5	57	1
6	57	1
7	58	1
8	59	1
9	59	1
10	60	1
11	61	1
12	62	1
13	63	1
14	64	1
15	64	1
16	65	1
17	66	1
18	68	1
19	69	1
20	71	1
21	72	1
22	74	1
23	75	2
24	77	2
25	78	2
26	79	2
27	80	2
28	80	2
29	81	2
30	81	2
31	81	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