Peru Cusco Weather in August — Climate Guide
August in Cusco is very-high
August is very-high for Cusco.
August continues peak global tourist conditions with minor weather + price softening versus June-July. The headline is Pachamama Day on August 1 — Andean indigenous ceremonies offering coca leaves, chicha de jora (corn beer), and food to Mother Earth at Sacsayhuamán, Sacred Valley sites, and Cusco hilltop shamanic gatherings. Less internationally known than Inti Raymi but more culturally authentic. Visitors can attend (respectfully) at Sacsayhuamán Plaza in the morning. Rainfall ticks up slightly (3 rain days), nights warm marginally to 2°C average, but otherwise August matches July for tourism intensity + perfect Inca Trail conditions. Last full month before the September shoulder window opens — book August 25+ for noticeably lower rates than August 1-24.
Travel score
Pachamama Day (Aug 1) + peak conditions — book early August before late-month shoulder begins
August Weather at a Glance
August averages 68°F / 20°C highs and 36°F / 2°C lows with 3 rain days and 10mm rainfall. Humidity 50%, UV 12, 8 hours sunshine. Mornings frosty + brilliantly clear; afternoons mostly calm. Sunrise 5:55 AM, sunset 5:40 PM.
August Travel Advice
If August 1 Pachamama Day matters, arrive Cusco July 30+, attend Sacsayhuamán ceremonies respectfully (don't photograph faces without consent, observe rather than participate unless invited), combine with Sacred Valley shamanic site visits. Book August 25+ to catch shoulder pricing return. Otherwise August matches July for booking timing (6+ months ahead Inca Trail).
Flying In from Overseas
Continued global peak. European summer (Italian Ferragosto August 15). Korean late-summer holidays. Japanese Obon (Aug 13-16) brings Japanese travelers. Direct flights Lima→Cusco $150-220 1.5h still tight.
August Pricing Trends
Peak pricing eases late month: Belmond Monasterio $850-1,400 (early Aug) → $700-1,200 (late Aug), JW Marriott $500-900 → $400-750. Sacred Valley Belmond Río Sagrado $700-1,400. Machu Picchu Vistadome $200 RT, Inca Trail 4-day $800-950. Flights Lima→Cusco $150-200.
Cusco August Weather Stats
Avg High
20°C
Avg Low
2°C
Rainy Days
3
10mm total
Sunshine
8h
Daily avg
Humidity
50%
Dry
UV Index
12
Extreme
Wind
11 km/h
Gusts 25
Sea Temp
0°C
N/A altitude city
Crowds
Very busy
At attractions
August Sunrise & Sunset
Air Quality
PM2.5
12 μg/m³
PM10
25 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
18°C
Nighttime
0°C
Humidity and wind affect how the actual temperature feels.
Wind
11 km/h
Max gust 25 km/h
Activities Recommended for August
August Travel Pros & Cons
Pros
- Pachamama Day authentic Andean ceremony
- Slightly warmer nights than July
- Last solid week (Aug 25+) sees shoulder pricing return
Cons
- Hotels still at peak (2x shoulder)
- Inca Trail permits sold out
- Sacsayhuamán Pachamama Day crowded with respect-required ceremonies
August Events & Festivals
- Pachamama Day (August 1 — Andean Mother Earth offering ceremonies)
- Peak global summer continues
- Sky 10 days hottest at altitude (still 20°C only)
Cusco in August — Full Picture
August continues peak global tourist conditions with minor weather + price softening versus June-July. The headline is Pachamama Day on August 1 — Andean indigenous ceremonies offering coca leaves, chicha de jora (corn beer), and food to Mother Earth at Sacsayhuamán, Sacred Valley sites, and Cusco hilltop shamanic gatherings. Less internationally known than Inti Raymi but more culturally authentic. Visitors can attend (respectfully) at Sacsayhuamán Plaza in the morning. Rainfall ticks up slightly (3 rain days), nights warm marginally to 2°C average, but otherwise August matches July for tourism intensity + perfect Inca Trail conditions. Last full month before the September shoulder window opens — book August 25+ for noticeably lower rates than August 1-24.
What to Wear & What to Pack
Cold nights 2°C still need down jacket. Slightly warmer than July at altitude. Day layers light, thermal base for nights.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
19.7°C
5°C
9.7/mo
Summer (Jun·Jul·Aug)
Current19.3°C
1°C
2.7/mo
Autumn (Sep·Oct·Nov)
20.7°C
4.7°C
7.7/mo
Winter (Dec·Jan·Feb)
19.3°C
7°C
16.7/mo
Cusco Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 19° | 7° | 18d·160mm | 4h | 75% | 11 | Quiet | Low season | |
| 19° | 7° | 17d·150mm | 4h | 75% | 11 | Quiet | Low season | |
| 19° | 7° | 15d·130mm | 5h | 73% | 11 | Quiet | Low season | |
| April (Best) | 20° | 5° | 9d·60mm | 7h | 65% | 11 | Moderate | Shoulder |
| May (Best) | 20° | 3° | 5d·20mm | 8h | 60% | 12 | Moderate | Shoulder |
| June (Best) | 19° | 1° | 3d·10mm | 8h | 55% | 12 | Very busy | Peak |
| July (Best) | 19° | 0° | 2d·5mm | 8h | 50% | 12 | Very busy | Peak |
| August (Best) | 20° | 2° | 3d·10mm | 8h | 50% | 12 | Very busy | Peak |
| September (Best) | 20° | 3° | 4d·20mm | 7h | 55% | 12 | Busy | Shoulder |
| 21° | 5° | 8d·50mm | 7h | 60% | 12 | Moderate | Shoulder | |
| 21° | 6° | 11d·80mm | 6h | 65% | 12 | Quiet | Low season | |
| 20° | 7° | 15d·130mm | 5h | 70% | 12 | Moderate | Shoulder |
View Other Months
Cusco August Hotel Picks
Frequently Asked Questions
Is August a good time to visit Cusco?
Cusco in August is very-high. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Cusco in August?
Cusco August averages a high of 20°C and a low of 2°C.
Does it rain much in Cusco in August?
Cusco August averages 10mm of rainfall over about 3 rainy days.
What should I wear in Cusco in August?
Cold nights 2°C still need down jacket. Slightly warmer than July at altitude. Day layers light, thermal base for nights.
What time are sunrise and sunset in Cusco in August?
Cusco August sunrise is 05:55 and sunset is 17:40, with 11h 45m of daylight.
What's the air quality like in Cusco in August?
Cusco August air quality (AQI) averages 35, rated Good. PM2.5 averages 12μg/m³.
What activities are recommended in Cusco in August?
In August, Cusco is great for Pachamama Day Aug 1 Sacsayhuamán, Inca Trail 4-day peak, Machu Picchu + Huayna Picchu.
Is August peak season in Cusco?
Cusco August crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Cusco
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.