Uyuni weather in December

In December, Uyuni sees average daytime highs of 20°C and overnight lows near 6°C, with 62 mm of precipitation across 10.4 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

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

Daylight stretches from about 13 h 12 min at the start of December to 13 h 12 min by month's end. Set against the rest of the year, December is Uyuni's 10th-clearest and 8th-windiest month. For the whole year in context, see Uyuni's year-round climate.

Daytime high: 20°; 1st warmest
Overnight low: 6°; 11th coldest
Precipitation: 62 mm; 10.4 wet days
Daylight: 13 h 12 min; 5:46 AM – 7:00 PM
Cloud cover: 60%; 10th clearest
Wind: 12 km/h; 8th windiest
Solar energy: 8.39 kWh/m²
Travel score: 6.2; out of 10

Uyuni is city in Bolivia.

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

← November Uyuni 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

Day-to-day highs hold fairly steady near 20°C through the month.

A typical December day in Uyuni reaches about 20°C in the afternoon and slips back to 6°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 23°C. Set against its neighbours, December runs on par with November and about 2°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)	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	19	19	19	19	19	19	19	19	19	19	19
Avg low (°C)	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6

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

How December really feels in Uyuni

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.

Uyuni weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	18° / 6°	131	19.4	13.1	4.5
Feb	17° / 6°	108	17	12.7	4.5
Mar	18° / 5°	54	11.8	12.1	5.6
Apr	17° / 2°	10	2.5	11.5	6.7
May	14° / -2°	2	0.5	11	5.5
Jun	12° / -3°	1	0.3	10.8	4.4
Jul	12° / -3°	3	0.7	10.9	4.3
Aug	14° / -2°	3	0.9	11.3	5.5
Sep	16° / -1°	4	1.2	11.9	6.7
Oct	18° / 2°	9	1.9	12.5	7.5
Nov	20° / 4°	13	3.4	13	7.5
Dec	20° / 6°	62	10.4	13.2	6.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 53%. Skies tend to cloud over as the month goes on.

	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 (%)	61	60	59	58	57	57	55	55	54	54	53	52	52	51	50	48	48	46	46	44	42	41	38	37	36	35	34	33	33	33	32
Cloudier (%)	39	40	41	42	43	43	45	45	46	46	47	48	48	49	50	52	52	54	54	56	58	59	62	63	64	65	66	67	67	67	68

	Clearer (%)	Cloudier (%)
1	61	39
2	60	40
3	59	41
4	58	42
5	57	43
6	57	43
7	55	45
8	55	45
9	54	46
10	54	46
11	53	47
12	52	48
13	52	48
14	51	49
15	50	50
16	48	52
17	48	52
18	46	54
19	46	54
20	44	56
21	42	58
22	41	59
23	38	62
24	37	63
25	36	64
26	35	65
27	34	66
28	33	67
29	33	67
30	33	67
31	32	68

Chance of precipitation in December

Any precipitation

Uyuni gets around 62 mm of rain and snow over 10.4 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 34% and peaks near 55% on the wettest days, and about 0 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 (%)	15	15	15	16	16	17	18	19	20	22	23	25	27	29	31	33	35	37	39	41	43	44	46	48	49	51	52	53	53	54	55

	Rain chance (%)
1	15
2	15
3	15
4	16
5	16
6	17
7	18
8	19
9	20
10	22
11	23
12	25
13	27
14	29
15	31
16	33
17	35
18	37
19	39
20	41
21	43
22	44
23	46
24	48
25	49
26	51
27	52
28	53
29	53
30	54
31	55

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 12 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 12 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)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	11	11	11	11	11	11	11	11	11	11	11	11	11	11	10
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	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	12	light breeze
2	12	light breeze
3	12	light breeze
4	12	light breeze
5	12	light breeze
6	12	light breeze
7	12	light breeze
8	12	light breeze
9	12	light breeze
10	12	light breeze
11	12	light breeze
12	12	calm
13	12	calm
14	12	calm
15	12	calm
16	12	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	10	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 12 min at the start of December to 13 h 12 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 5:43 AM to 5:54 AM, and sunset from 6:52 PM to 7:07 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)	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2	13.2
Sunrise (AM)	5:43	5:43	5:43	5:43	5:43	5:43	5:44	5:44	5:44	5:44	5:45	5:45	5:45	5:46	5:46	5:46	5:47	5:47	5:48	5:48	5:49	5:49	5:50	5:50	5:51	5:51	5:52	5:52	5:53	5:53	5:54
Sunset (PM)	6:52	6:52	6:53	6:53	6:54	6:55	6:55	6:56	6:57	6:57	6:58	6:58	6:59	6:59	7:00	7:00	7:01	7:02	7:02	7:03	7:03	7:04	7:04	7:04	7:05	7:05	7:06	7:06	7:06	7:07	7:07

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.2	5:43	6:52
2	13.2	5:43	6:52
3	13.2	5:43	6:53
4	13.2	5:43	6:53
5	13.2	5:43	6:54
6	13.2	5:43	6:55
7	13.2	5:44	6:55
8	13.2	5:44	6:56
9	13.2	5:44	6:57
10	13.2	5:44	6:57
11	13.2	5:45	6:58
12	13.2	5:45	6:58
13	13.2	5:45	6:59
14	13.2	5:46	6:59
15	13.2	5:46	7:00
16	13.2	5:46	7:00
17	13.2	5:47	7:01
18	13.2	5:47	7:02
19	13.2	5:48	7:02
20	13.2	5:48	7:03
21	13.2	5:49	7:03
22	13.2	5:49	7:04
23	13.2	5:50	7:04
24	13.2	5:50	7:04
25	13.2	5:51	7:05
26	13.2	5:51	7:05
27	13.2	5:52	7:06
28	13.2	5:52	7:06
29	13.2	5:53	7:06
30	13.2	5:53	7:07
31	13.2	5:54	7:07

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 8.39 kWh/m².

For context, solar energy here swings from a low near 5.33 kWh/m² to a high of 8.91 kWh/m² in November across the year — December's 8.39 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)	8.9	8.9	8.8	8.8	8.8	8.8	8.8	8.7	8.7	8.6	8.6	8.6	8.5	8.5	8.4	8.4	8.4	8.3	8.3	8.2	8.2	8.2	8.1	8.1	8.1	8.0	8.0	8.0	7.9	7.9	7.9
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	8.9	Intense
2	8.9	Intense
3	8.8	Intense
4	8.8	Intense
5	8.8	Intense
6	8.8	Intense
7	8.8	Intense
8	8.7	Intense
9	8.7	Intense
10	8.6	Intense
11	8.6	Intense
12	8.6	Intense
13	8.5	Intense
14	8.5	Intense
15	8.4	Intense
16	8.4	Intense
17	8.4	Intense
18	8.3	Intense
19	8.3	Intense
20	8.2	Intense
21	8.2	Intense
22	8.2	Intense
23	8.1	Intense
24	8.1	Intense
25	8.1	Intense
26	8.0	Intense
27	8.0	Intense
28	8.0	Intense
29	7.9	Intense
30	7.9	Intense
31	7.9	Intense

Planning a trip in December

Is December a good time to visit Uyuni?

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

6.2

Sightseeing

5th-best month of the year

3.0

Beach & pool

2nd-best month of the year

December is a reasonable time to visit Uyuni for sightseeing.

What to pack for Uyuni in December

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

In December, Uyuni sees daytime highs around 20°C and nights near 6°C. Pack sun protection. Worth having: a warm layer and rain gear. About 10 days see rain.

sun protectiona warm layerrain gear

UV index in Uyuni 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 Uyuni peaks around February 9 at about 19 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 9 at about 8 (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	20	16	13	11	9	8	12	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	20	Extreme
Mar	16	Extreme
Apr	13	Extreme
May	11	Extreme
Jun	9	Very high
Jul	8	Very high
Aug	12	Extreme
Sep	15	Extreme
Oct	17	Extreme
Nov	17	Extreme
Dec	18	Extreme

Location & terrain

Where is Uyuni?

Uyuni sits at 20.5°S, 66.8°W, 0 m above sea level, in Bolivia. The nearest listed city is Potosí, 148 km away.

Topography around Uyuni

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

Within 3 km, the terrain around Uyuni has only modest variations in elevation — a maximum elevation change of 29 m around an average of 3,668 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 906 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,212 m.

The land around Uyuni is covered by bare terrain (55%) and grassland (30%) within 3 km, bare terrain (66%) and grassland (33%) within 16 km, and bare terrain (66%) and grassland (34%) within 80 km.

3 km

29 m

bare terrain 55%

16 km

906 m

bare terrain 66%

80 km

2,212 m

bare terrain 66%

grasslandartificial surfacesbare terrain

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

December weather nearby: Potosí 148 km · Tupiza 159 km · Villazón 221 km · Llallagua 228 km · Sucre 228 km · Huanuni 241 km · Tarija 248 km · Oruro 278 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 Uyuni (-20.4597°, -66.825°, elevation 0 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	20	5
2	20	5
3	20	5
4	20	5
5	20	5
6	20	5
7	20	5
8	20	5
9	20	5
10	20	5
11	20	6
12	20	6
13	20	6
14	20	6
15	20	6
16	20	6
17	20	6
18	20	6
19	20	6
20	20	6
21	19	6
22	19	6
23	19	6
24	19	6
25	19	6
26	19	6
27	19	6
28	19	6
29	19	6
30	19	6
31	19	6

	Clearer (%)	Cloudier (%)
1	61	39
2	60	40
3	59	41
4	58	42
5	57	43
6	57	43
7	55	45
8	55	45
9	54	46
10	54	46
11	53	47
12	52	48
13	52	48
14	51	49
15	50	50
16	48	52
17	48	52
18	46	54
19	46	54
20	44	56
21	42	58
22	41	59
23	38	62
24	37	63
25	36	64
26	35	65
27	34	66
28	33	67
29	33	67
30	33	67
31	32	68

	Rain chance (%)
1	15
2	15
3	15
4	16
5	16
6	17
7	18
8	19
9	20
10	22
11	23
12	25
13	27
14	29
15	31
16	33
17	35
18	37
19	39
20	41
21	43
22	44
23	46
24	48
25	49
26	51
27	52
28	53
29	53
30	54
31	55

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

	Clearer (%)	Cloudier (%)
1	61	39
2	60	40
3	59	41
4	58	42
5	57	43
6	57	43
7	55	45
8	55	45
9	54	46
10	54	46
11	53	47
12	52	48
13	52	48
14	51	49
15	50	50
16	48	52
17	48	52
18	46	54
19	46	54
20	44	56
21	42	58
22	41	59
23	38	62
24	37	63
25	36	64
26	35	65
27	34	66
28	33	67
29	33	67
30	33	67
31	32	68

	Rain chance (%)
1	15
2	15
3	15
4	16
5	16
6	17
7	18
8	19
9	20
10	22
11	23
12	25
13	27
14	29
15	31
16	33
17	35
18	37
19	39
20	41
21	43
22	44
23	46
24	48
25	49
26	51
27	52
28	53
29	53
30	54
31	55

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

	Clearer (%)	Cloudier (%)
1	61	39
2	60	40
3	59	41
4	58	42
5	57	43
6	57	43
7	55	45
8	55	45
9	54	46
10	54	46
11	53	47
12	52	48
13	52	48
14	51	49
15	50	50
16	48	52
17	48	52
18	46	54
19	46	54
20	44	56
21	42	58
22	41	59
23	38	62
24	37	63
25	36	64
26	35	65
27	34	66
28	33	67
29	33	67
30	33	67
31	32	68

	Rain chance (%)
1	15
2	15
3	15
4	16
5	16
6	17
7	18
8	19
9	20
10	22
11	23
12	25
13	27
14	29
15	31
16	33
17	35
18	37
19	39
20	41
21	43
22	44
23	46
24	48
25	49
26	51
27	52
28	53
29	53
30	54
31	55

	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