Visit the Rainbow Mountains
The Rainbow Mountain (Vinicunca) is acolored rainbow mountain that will steal your heart forever and the view from the top will take your breath away.
September is one of the excellent months to visit Ica, with daytime temperatures of 26°C (79°F) and lows of 15°C (59°F) at night. Rainfall is minimal, averaging just 0.8 mm (0.03 in) for the month.
If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Pick a month to see the average temperature, rainfall and sunshine in Ica - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Ica typically stay consistent throughout September, with daily highs averaging around 26°C (79°F). Nights are pleasant, with lows around 14°C (57°F).
Browse day-by-day weather records for Ica spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 49 years of weather observations in Ica between 1976 and 2025, these are the recorded extremes.
Find out more about the weather in Peru and which places have the best travel conditions in this month. See all of Peru in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses).
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Ica climate overview or explore weather in Peru.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Visit the Rainbow Mountains
The Rainbow Mountain (Vinicunca) is acolored rainbow mountain that will steal your heart forever and the view from the top will take your breath away.
"The other" Machu Picchu: the Inca City of Choquequirao
Discover Choquequirao, the hidden Inca city near Cusco. Hike through stunning landscapes and explore ancient ruins with fewer crowds than Machu Picchu.
Hike the inca Trail
Few walking tours speak so much to the imagination as the Inca Trail to Machu Picchu. The tour leads through beautiful mountain landscapes and it is called the 'Royal Highway'
The Inkaterra Reserva Amazonica
One of your highlights during a trip in Peru might be this eco-luxury lodge in front of the Madre de Dios River, called Inkaterra Reserva Amazonica.