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.
Juliaca Weather in September
September in Juliaca brings pleasant temperatures, with highs of 18°C (64°F) and nights dropping to 3°C (37°F). Expect some rainfall, with around 53 mm (2.1 in) typical for the month.
Rainfall in Juliaca in September
Past climate data indicates that roughly 6 days will see rain, totalling around 53 mm (2.1 in) for the month. Although rain is not especially frequent, individual showers can still be quite heavy.
Temperature in Juliaca in September
Daytime highs in Juliaca in September reach 18°C (64°F), with nights around 3°C (37°F). Conditions are often most pleasant around the middle of the day. Nights drop to 3°C (37°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.For Juliaca itself, August generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Juliaca Temperature in September
Min Temperature
3°C (37°F)
Max Temperature
18°C (64°F)
Chance of Rain
21%
Precipitation
53 mm (2.1 in)
Rainy days
6 days
Juliaca Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Juliaca - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Juliaca typically stay consistent throughout September, with daily highs averaging around 18°C (64°F). Nights are cold, with lows typically ranging from 0°C (32°F) to 4°C (39°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Juliaca in September
Browse day-by-day weather records for Juliaca spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Juliaca historical weather extremes in September
Based on 33 years of weather observations in Juliaca between 1993 and 2026, these are the recorded extremes.
- The warmest day in September was on September 27, 2010, with a maximum of 23°C (73°F).
- The coldest September day was on September 20, 2000, with a maximum of 6°C (43°F).
- Nighttime temperatures dropped to -11°C (12°F) on September 9, 1998, marking the coldest September night on record.
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 Juliaca in September
For Juliaca 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. Rain is likely on several days, so bring a good rain jacket.
What To Do in Juliaca in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Camping4/10 -
Outdoor sports10/10
Juliaca 3-Day Forecast
More climate data for Juliaca
See the full Juliaca 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.