BestDateWeather
✈️ Plan my tripPlan trip
Peru, Peru · Temperate

Peru in September: go or not?

Excellent time. Peru in September scores 8.2/10.

📅 Updated August 2026 🛰️ ERA5 · 10 years 📍 12.05°S · 77.04°W
⚡ This month's verdict
Go for it
Peru · September
8.2
14–19°
Temperature
0%
Rain
9h
Sun
🏛️ Heritage🌧️ Moderate rain☔ Indoor sights
Photo : Darya Luganskaya via Unsplash
The month in detail

What to expect in September

Autumn in Peru is often underrated: 19.0°C, golden light and declining crowds. An interesting window. Rain is virtually absent (0.0% of days) — ideal for planning without a backup. A good balance between weather and crowds, even if February (8.8/10) remains theoretically better.

September ranks 9 out of 12 months in Peru.

This month's conditions

What it's like in September

UV index
9 · very high
protection essential
Feels like
comfortable
13°
Daylight
11.9h of daylight
Air quality
good
AQI 25
Compare

Is September the right month?

The best month in Peru is February (8.8/10), 0.6 pt higher than September.

See February →See all 12 months →
Context

Our verdict

Peru, Andean South American country: 33 million inhabitants on 1,285,000 km² (3rd largest in South America after Brazil and Argentina). 3 classic regions: Costa desert (Pacific coast with Lima), Sierra Andean (Andean cordillera), Selva Amazonian (60% of the territory). Cradle of the Inca civilisation and pre-Inca cultures (Caral, Chavín, Moche, Nazca, Wari, Chimú).

Read Gilles' full review →

Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Peru

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.

Country · Peru

🗣️LanguageSpanish
💶CurrencyPeruvian Sol (S/)
🚗DrivingRight-hand
🛡️Safety Very safe · 1/5
💰Cost of living Cheap · 2/5

🌡️ Climate

🌍Climate typeTemperate
📈Climate trend Stable
🔥Hottest monthFebruary · 26°C
❄️Coolest monthAugust · 18°C
🌧️Rainiest month March · 18%

🏛️ City break

📅Tourist peak seasonJune → August
Indoor sights Year-round
🚇Public transportGood
Location

Where is Peru ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Peru
Temperate climate with a 8.8 → 8.0 gap between best and worst month. 10 years of ERA5 data to choose by project.
12.05°S · 77.04°W
Questions

Frequently asked questions

What is the best time to visit Peru?
February is the best month with 26.0°C highs, 21.0°C lows, 8.5h of sunshine and 14.0% rainy days. The months of February & April offer comparable conditions.
How many hours of sunshine does Peru get in February?
Peru averages 8.5 sunshine hours per day in February. It is the sunniest month with a climate score of 8.4/10.
What is the rainiest month in Peru?
August is the most unfavourable month with August has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Peru in February?
In February, overnight lows reach 21.0°C, while afternoon highs average 26.0°C.
Is Peru good in winter?
In winter (December-February), Peru scores 8.3/10 on average — Decent period conditions for cultural visits.. The best month overall remains February with a score of 8.4/10.
When should you avoid Peru?
August is the most difficult month to visit Peru, with August has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Peru in September?
The average UV index reaches 9 in September in Peru (very high), with about 11.9h of daylight. Protection essential.