Cusco Weather in August
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Updated: March 2026
Is August a Good Time to Visit Cusco?
August is a good time to visit Cusco (7/10). With 10 daily sunshine hours and only 7 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 6th sunniest of the year in Cusco. Culture-focused travellers and those who prefer lighter crowds will find August a practical choice, with prices running lower than peak September without sacrificing all the good weather. September offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Cusco's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.
Planning a trip to Cusco in August? Days warm to 16°C on average while evenings hold at 5°C, giving you a clear sense of what to pack. The month delivers roughly 10 hours of sunshine per day and 22mm of rainfall spread across 7 wet days, so there is plenty of fair weather to work with.
16°C
Avg High
5°C
Avg Low
7 days
Rain Days
10h
Sunshine
82%
Humidity
Temperature in Cusco in August
The 11°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. At 82% humidity, the 16°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. The UV index of 3 is low, meaning sun exposure is minimal concern and sunscreen is largely optional. Winds are calm at an average 9 km/h, so wind-chill is not a factor in planning your clothing. In Fahrenheit: 61°F average high, 41°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature in August
Monthly Precipitation (mm)
What to Wear in Cusco in August
Packing for Cusco in August means dressing for 16°C days and 5°C evenings. A mid-weight jacket over a sweater handles 16°C daytime temperatures; the combination stays comfortable all day without overheating. Evenings drop 11°C to around 5°C, a notable shift that catches underprepared visitors off guard. Pack a dedicated evening layer. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues. At 82% average humidity, quick-dry synthetic or bamboo fabrics dry overnight and stay comfortable longer than cotton.
Local tip: Layers are more practical than a single heavy garment in Cusco. The day-to-evening temperature shift rewards packing a versatile mid-layer you can add or remove as conditions change.
Events in Cusco in August
August has no major festivals or public holidays in Cusco, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
What to Pack for Cusco in August
Based on 16°C average highs and 7 rainy days
- Light jacket or cardigan for cooler evenings
- Mix of short and long-sleeve layers
- Comfortable walking shoes with good arch support
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Cusco in August
- Explore the old town's cobblestone backstreetsMorning (9-11am)At 16°C, conditions are pleasant for unhurried exploration on foot
- Visit hilltop viewpoints for panoramic city viewsLate afternoon (4-6pm)Low sun angle creates dramatic light for photography while temperatures remain comfortable
- Bicycle rental for a half-day city circuitMid-morning startMild 16°C temperatures are ideal for extended cycling without excessive effort
- Boat tour of the river, bay, or canal networkLate morning departureComfortable weather makes open-deck boats viable without wind-chill concerns
- Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
- Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
- Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
- Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningAugust brings distinct seasonal changes to public green spaces worth exploring
- Try the seasonal farmer's market for local produce and street foodSaturday morning markets typically 8am-1pmAugust seasonal produce is at peak availability, offering dishes not found at other times of year
Why is Cusco mild in August?
In August, Cusco sits in the dry season corridor, as the ITCZ shifts away from the region and trade winds bring drier, more stable air. This produces reliably sunny days reaching 16°C, with lower humidity than the wet months. Overnight lows of 5°C offer a pleasant reprieve from the midday heat. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate -- wear sunscreen. UV 6-7: High -- hat and SPF 30+ essential. UV 8-10: Very High -- limit midday exposure. UV 11+: Extreme -- seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry -- skin and throat may feel parched. 40-60%: Comfortable -- ideal for most people. 60-80%: Sticky -- light, breathable fabrics recommended. Above 80%: Muggy -- heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions: Cusco in August
August ranks 6th sunniest of the year in Cusco, with an average 10 daily sunshine hours. The driest months are June, July, and August. October is the hottest month (17°C avg high); January is the coolest (15°C). From here, temperatures fall 0°C into September. Compared to last month (July: 15°C high, 3 rain days), August is warmer and wetter. August sits in the middle of the annual sunshine ranking for Cusco, offering a reasonable balance of good weather and manageable crowds.
Year-Round Climate
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 15°C | 8°C | 29 | 9h | View |
| February | 15°C | 8°C | 26 | 9h | View |
| March | 15°C | 8°C | 28 | 9h | View |
| April | 15°C | 7°C | 18 | 10h | View |
| May | 15°C | 6°C | 8 | 10h | View |
| June | 15°C | 5°C | 3 | 10h | View |
| July | 15°C | 5°C | 3 | 10h | View |
| August | 16°C | 5°C | 7 | 10h | View |
| September | 16°C | 6°C | 13 | 11h | View |
| October | 17°C | 8°C | 21 | 10h | View |
| November | 17°C | 8°C | 23 | 10h | View |
| December | 16°C | 8°C | 28 | 9h | View |
Plan Your Trip to Cusco
Data Sources for Cusco
Climate normals represent 30-year averages (1991-2020). Individual years may vary.