Cusco weather in August

In August, Cusco sees average daytime highs of 15°C and overnight lows near 2°C, with 22 mm of precipitation across 6.5 wet days and about 11.6 hours of daylight. It is the 5th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 15°C through the month. The sky is clear or mostly clear about 45% of the time in August, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of August to 11 h 42 min by month's end. Set against the rest of the year, August is Cusco's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Cusco's year-round climate.

Daytime high
15°
5th warmest
Overnight low
3rd coldest
Precipitation
22 mm
6.5 wet days
Daylight
11 h 30 min
6:06 AM – 5:38 PM
Cloud cover
44%
2nd clearest
Wind
4 km/h
2nd windiest
Solar energy
5.39 kWh/m²
Travel score
4.9
out of 10

Cusco is historic city of Peru, capital of the Department of Cusco.

Density
1,113/km²
people per km²
Founded
1534

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 15°C through the month.

A typical August day in Cusco reaches about 15°C in the afternoon and slips back to 2°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 17°C. Set against its neighbours, August runs on par with July and on par with September.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1142
2142
3142
4142
5142
6142
7142
8142
9142
10142
11142
12142
13142
14142
15142
16142
17142
18142
19152
20152
21152
22153
23153
24153
25153
26153
27153
28153
29153
30153
31153

Cusco weather by month

How August compares with the rest of the year at a glance. August is the 5th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan14° / 22928.80.712.72.3
Feb14° / 21426.10.312.52.2
Mar14° / 17027.40.312.12.4
Apr14° / 7618.6011.73.2
May14° / 248.1011.44.5
Jun14° / 123.30.111.24.9
Jul14° / 113.10.111.35.0
Aug15° / 226.50.511.64.9
Sep15° / 3713.1011.94.3
Oct16° / 8420.30.112.33.5
Nov16° / 11622.80.312.63.1
Dec15° / 19727.50.512.82.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 32% of August, with mostly cloudy or overcast conditions the remaining 23%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27822
37822
47822
57723
67723
77723
87723
97723
107723
117723
127723
137723
147723
157723
167723
177723
187723
197723
207723
217723
227723
237723
247723
257624
267624
277525
287525
297426
307327
317228

Chance of precipitation in August

Any precipitationSnow

Cusco gets around 22 mm of rain and snow over 6.5 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 21% and peaks near 26% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1101
2111
3111
4121
5132
6142
7152
8162
9182
10192
11202
12212
13223
14222
15232
16242
17242
18242
19242
20252
21251
22251
23251
24251
25251
26251
27251
28251
29251
30260
31260

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 4 km/h in August.

Across August, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 24 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 18 minutes over August. Sunrise moves from 6:12 AM to 5:56 AM, and sunset from 5:36 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:125:36
211.46:125:36
311.46:115:36
411.46:115:36
511.46:115:37
611.46:105:37
711.56:105:37
811.56:095:37
911.56:095:37
1011.56:095:37
1111.56:085:38
1211.56:085:38
1311.56:075:38
1411.56:075:38
1511.56:065:38
1611.56:065:38
1711.66:055:38
1811.66:045:39
1911.66:045:39
2011.66:035:39
2111.66:035:39
2211.66:025:39
2311.66:025:39
2411.66:015:39
2511.66:005:39
2611.76:005:39
2711.75:595:39
2811.75:585:39
2911.75:585:39
3011.75:575:40
3111.75:565:40

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.39 kWh/m².

For context, solar energy here swings from a low near 4.59 kWh/m² to a high of 6.11 kWh/m² in October across the year — August's 5.39 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.6Bright
265.6Bright
275.6Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in August

Hazard calendar for Cusco

In seasonPeak

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

Cusco's monsoon runs November–March, when most of the year's rain falls.

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

Is August a good time to visit Cusco?

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

4.9
Sightseeing
2nd-best month of the year
Beach & pool
never really warm enough

August is a reasonable time to visit Cusco for sightseeing.

What to pack for Cusco in August

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

In August, Cusco sees daytime highs around 15°C and nights near 2°C. Worth packing: a warm layer and sun protection. About 7 days see rain.

a warm layersun protection

UV index in Cusco 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 Cusco peaks around February 10 at about 19 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 10UV 19Jun 23UV 10
UV index (midday)Level
Jan19Extreme
Feb19Extreme
Mar17Extreme
Apr15Extreme
May12Extreme
Jun10Very high
Jul10Extreme
Aug13Extreme
Sep14Extreme
Oct16Extreme
Nov17Extreme
Dec16Extreme

Air quality in Cusco in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Cusco is worst in September — around 16 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (January, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1315 µg/m³Jan 116 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar8Good
Apr8Good
May8Good
Jun8Good
Jul8Good
Aug13Moderate
Sep16Moderate
Oct10Good
Nov8Good
Dec6Good
Location & terrain

Where is Cusco?

Cusco sits at 13.5°S, 72.0°W, 3,312 m above sea level, in Peru. The nearest listed city is Wanchaq, 1.0 km away.

Sicuani

Topography around Cusco

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

Within 3 km, the terrain around Cusco has significant variations in elevation — a maximum elevation change of 503 m around an average of 3,446 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,566 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,473 m.

The land around Cusco is covered by artificial surfaces (59%) and grassland (22%) within 3 km, grassland (74%) within 16 km, and grassland (77%) within 80 km.

3 km
503 m
16 km
1,566 m
80 km
5,473 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Wanchaq 1.0 km · Santiago 2.0 km · Aguas Calientes 73 km · Machu Picchu 73 km · Abancay 100 km · Quillabamba 108 km · Santa Ana 110 km · Sicuani 115 km

Peru travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
220 V · 60 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$9,684
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
8.6
per 100k, 2021
Road deaths
13.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 519
Religion
Catholic 76%Evangelical Christian 16%no religion 5%other religions 3%

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 Cusco (-13.5319°, -71.967°, elevation 3,312 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).