Viacha weather in August

In August, Viacha sees average daytime highs of 16°C and overnight lows near -1°C, with 17 mm of precipitation across 4.5 wet days and about 11.4 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 59% of the time in August, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of August to 11 h 42 min by month's end. Set against the rest of the year, August is Viacha's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Viacha's year-round climate.

Daytime high
16°
6th warmest
Overnight low
-1°
3rd coldest
Precipitation
17 mm
4.5 wet days
Daylight
11 h 24 min
6:54 AM – 6:20 PM
Cloud cover
35%
3rd clearest
Wind
7 km/h
2nd windiest
Solar energy
6.21 kWh/m²
Travel score
5.7
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.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 16°C through the month.

A typical August day in Viacha reaches about 16°C in the afternoon and slips back to -1°C overnight — a 16°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, August runs about 1°C warmer than July and about 1°C cooler than September.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
115-1
215-1
315-1
415-1
515-1
615-1
715-1
815-1
915-1
1015-1
1115-1
1215-1
1315-1
1415-1
1515-1
1615-1
1716-1
1816-1
1916-1
20160
21160
22160
23160
24160
25160
26160
27160
28160
29160
30160
31160

How August really feels in Viacha

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in August is cold — wind chill drags the overnight "feels like" below the raw low.

Viacha weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan15° / 14324.80.612.92.7
Feb15° / 12422.60.412.62.7
Mar15° / 9622.40.112.13.1
Apr15° / 4613.60.111.64.2
May16° / 144.80.111.25.7
Jun15° / -2°82.50.3115.7
Jul15° / -2°1130.911.15.6
Aug16° / -1°174.50.911.45.7
Sep16° / 329.60.611.95.4
Oct17° / 5313.30.512.45.0
Nov17° / 5813.90.112.84.8
Dec16° / 11020.90.5133.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 18%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28317
38218
48218
58119
68119
78119
88119
98119
108020
118020
128020
138020
148020
158119
168119
178218
188218
198218
208317
218317
228317
238317
248317
258317
268218
278218
288218
298218
308218
318218

Chance of precipitation in August

Any precipitationSnow

Viacha gets around 17 mm of rain and snow over 4.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 16% and peaks near 20% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
192
2102
3102
4112
5112
6122
7132
8133
9143
10153
11163
12164
13174
14174
15184
16184
17184
18184
19184
20174
21174
22174
23173
24173
25173
26172
27172
28182
29192
30191
31201

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

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

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in August

Winds average 7 km/h in August.

Across August, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
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 August

DaylightNight

Daylight runs from about 11 h 12 min at the start of August to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over August. Sunrise moves from 7:02 AM to 6:44 AM, and sunset from 6:17 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:026:17
211.37:016:17
311.37:016:17
411.37:016:17
511.37:006:18
611.37:006:18
711.36:596:18
811.36:596:19
911.36:586:19
1011.46:586:19
1111.46:576:19
1211.46:576:19
1311.46:566:20
1411.46:556:20
1511.46:556:20
1611.46:546:20
1711.46:546:21
1811.56:536:21
1911.56:526:21
2011.56:526:21
2111.56:516:21
2211.56:506:22
2311.56:506:22
2411.66:496:22
2511.66:486:22
2611.66:476:22
2711.66:476:22
2811.66:466:22
2911.66:456:23
3011.66:446:23
3111.76:446:23

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.21 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 — August's 6.21 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
56.0Bright
66.0Bright
76.0Bright
86.0Intense
96.0Intense
106.0Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.3Intense
206.3Intense
216.3Intense
226.4Intense
236.4Intense
246.4Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.6Intense
306.6Intense
316.6Intense
Planning a trip in August

Hazard calendar for Viacha

In seasonPeak

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

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 August a good time to visit Viacha?

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

5.7
Sightseeing
1st-best month of the year
Beach & pool
never really warm enough

August is a reasonable time to visit Viacha for sightseeing.

What to pack for Viacha in August

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

In August, Viacha sees daytime highs around 16°C and nights near -1°C. Pack sun protection. Worth having: a warm layer. About 5 days see rain.

sun protectiona warm layer

UV index in Viacha in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 8UV 19Jul 9UV 9
UV index (midday)Level
Jan19Extreme
Feb19Extreme
Mar17Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug13Extreme
Sep15Extreme
Oct17Extreme
Nov17Extreme
Dec18Extreme
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.

CopacabanaSorataIsla del SolCaranavi

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
16 km
360 m
80 km
5,498 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewaterwetland
August 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
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 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).