Transit Desk

Climate

Weather in Peru in September

Weather in Peru, September
In September, Peru sees average highs of 18.7°C (66°F) and lows of 14.3°C (58°F), with around 1 mm of rain.

Peru — September

Peru September
Daytime high
18.7°C (66°F)
Overnight low
14.3°C (58°F)
Rainfall
1 mm
Best-time rank
Off-peak

How September compares

Peru, September vs. the annual average (2025)
This month18.7°C (66°F) / 14.3°C (58°F) · 1 mm
Yearly average21.3°C (70°F) / 16.9°C (62°F) · 4 mm

September in Peru runs 2.6°C (4.7°F) cooler than the yearly average, and is close to the yearly average rainfall. Pack a warm jacket for cooler conditions.

Common questions

What is the weather like in Peru in September?

Average highs of 18.7°C (66°F) and lows of 14.3°C (58°F), with around 1 mm of rain.

Is September a good time to visit Peru?

It is an off-peak month for comfort in Peru; January, April, December tend to be more pleasant.

Updated climate normals, 2025