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.
Pisco Weather in September
Pisco in September averages 20°C (68°F) during the day and 15°C (59°F) at night. Minimal rainfall is typical for this time of year.
Rainfall in Pisco in September
You can expect rain on around 2 days based on historical patterns, with 1 mm (0.04 in) average for the month. On the rare occasion it rains this month, it usually amounts to very little.
Temperature in Pisco in September
September in Pisco is generally excellent, with days reaching 20°C (68°F) and nights settling around 15°C (59°F). Conditions are often most pleasant around the middle of the day. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Average water temperature in September
The water is 16°C (61°F) this month, cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.For more travel ideas, our weather planner can help you explore destinations around the world.
Pisco Temperature in September
Min Temperature
15°C (59°F)
Max Temperature
20°C (68°F)
Water Temperature
16°C (61°F)
Chance of Rain
5%
Precipitation
1 mm (0.04 in)
Rainy days
2 days
Humidity
84%
Pisco Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Pisco - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Pisco typically stay consistent throughout September, with daily highs averaging around 20°C (68°F). Nights are pleasant, with lows around 14°C (57°F).
Average temperatures in September
Historical weather records for Pisco in September
Browse day-by-day weather records for Pisco spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Pisco historical weather extremes in September
Based on 49 years of weather observations in Pisco between 1976 and 2025, these are the recorded extremes.
- On September 30, 1985, temperatures climbed to 28°C (82°F), marking the warmest September day on record.
- Pisco experienced its chilliest September day on September 4, 2022, reaching only 17°C (63°F).
- Pisco registered its coldest September night on September 7, 1978, with temperatures dropping to 9°C (48°F).
Best Places in Peru in September
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
pleasant
tolerable
unpleasant
poor
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).
What to Wear in Pisco in September
For Pisco in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Almost no rain is expected, so no need to bring rain gear. Expect water temperatures of around 16°C (61°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items.
What To Do in Pisco in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Camping10/10 -
Outdoor sports10/10
Pisco 3-Day Forecast
More climate data for Pisco
Temperature Rainfall Humidity Water Temp
See the full Pisco climate overview or explore weather in Peru.
Popular in September
Where to go in September - average daytime high across popular destinations.
Iquitos
32°C (90°F) Trujillo
22°C (72°F) Lima20°C (68°F) Arequipa
20°C (68°F) Puno17°C (63°F) Cusco
17°C (63°F) Machu Picchu15°C (59°F) Urubamba14°C (57°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Visit the Rainbow Mountains
"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.