Peru in september: average Weather, Temperature and Climate, Where to go?
Weather in Peru in september 2025
Below, check out the weather forecast for september for most popular cities in Peru. These forecasts are statistics for the month of september from weather reports for over 10 years. The percentage indicates the possibility of having the weather indicated.
Average weather in september in Lima
perfect weather UV index: 6
Weather at 6am
65°F
Clear/Sunny
73% of time
23%
5%
2%
Weather at 12pm
72°F
Clear/Sunny
81% of time
19%
1%
1%
Weather at 6pm
63°F
Clear/Sunny
72% of time
25%
4%
1%
Weather at 3am
59°F
68%
23%
8%
3%
Where to go in Peru in september?
Where to go in Peru in september: destination map
Where to go in each region in september?
| Altiplano (Puno, Juliaca, Parque Nacional Bahuaja Sonene...) | 59°F to 95°F | 3 à 9 days | good weather* | |
| Andes Cordillera (Huaraz, Ayacucho, Huancayo...) | 54°F to 88°F | 3 à 14 days | tolerable weather* | |
| Central Coast of Peru (Lima, San Vicente de Cañete, Barranca...) | 68°F to 72°F | 0 day | 61°F to 63°F | perfect weather* |
| North Coast of Peru (Chiclayo, Máncora, Chimbote...) | 70°F to 86°F | 0 day | 63°F to 72°F | perfect weather |
| Peruvian Amazon (eastern Peru) (Iquitos, Puerto Maldonado, Pucallpa...) | 72°F to 99°F | 5 à 13 days | good weather* | |
| Sacred Valley of the Incas (Cusco) (Machu Picchu, Cusco, Vinicunca...) | 56°F to 67°F | 2 à 7 days | tolerable weather* | |
| Southern Coast of Peru (Arequipa, Paracas, Tacna...) | 65°F to 74°F | 0 day | 61°F to 63°F | perfect weather* |
Where should you go in Peru in september when it comes to the weather?
Remember:
The climate in Peru in september ranges from perfect to tolerable depending on the region and city.
The month of September is one of the best moments in order to discover Peru with good weather conditions. The seaside town of Máncora will allow to enjoy the magnificence of the climate throughout September in Peru - while the Andes are welcoming with their comfortable freshness, thanks to rising temperatures.
The Atlantic Coast of Peru throughout September
Due to rising temperatures, the climatic conditions in Lima and Máncora are idyllic - the mornings as well as midday are favored by a comfortable warmth, with clear skies and bright sunshine.
The Peruvian Andes throughout September
The weather throughout September in Peru is improving due to rising temperatures. Not only is it nice but the heat is pleasant. However, beware of storms that occur in the afternoon in Cusco.
The Peruvian Amazon throughout September
Heat and rainfall intensify in the Peruvian Amazon. Fortunately, the fogs are dissipating and provide better opportunities to discover the locality of Iquitos. Favour visiting in the morning because the afternoons are often rainy.
Climate in Peru in september
Climate in Lima in september
In the month of september, the mean temperature in Lima is 68°F (maximum temperature is 72°F and minimum temperature is 65°F). The climate nice in this city in this month. It almost never rains during this month. You will therefore be at the shelter from rain throughout your trip!
With a perfect weather, september is an advisable time to go in this city.
| September | |||
| Average temperature | 68°F | ||
| Highest temperature | 72°F | ||
| Lowest temperature | 65°F | ||
| Sea temperature | 61°F | ||
| Rainfall | 0in | ||
| Humidity | 79% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 15% | ||
| Length of day | 12:02 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Arequipa in september
In september, the mean temperature in Arequipa is 65°F (maximum temperature is 70°F and minimum temperature is 58°F). The climate quite enjoyable here in the month of september. With barely 0.3in over 0 days,
it rains very little for your journey.
With a good climate, september is a recommended month to go in that area in Peru.
| September | |||
| Average temperature | 65°F | ||
| Highest temperature | 70°F | ||
| Lowest temperature | 58°F | ||
| Rainfall | 0.3in | ||
| Number of days with rainfall | 0 day(s) (1%) | ||
| Humidity | 40% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 8% | ||
| Length of day | 12:01 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Cusco in september
In the month of september, maximum temperature is 59°F and minimum temperature is 47°F (for an average temperature of 54°F). The climate is quite cool around this city in the month of september, but it is bearable when dressing hot. With barely 2in over 2 days,
it rains very little throughout your trip.
With proper weather, the month of september is okay (but not the best month) for traveling in this city.
| September | |||
| Average temperature | 54°F | ||
| Highest temperature | 59°F | ||
| Lowest temperature | 47°F | ||
| Rainfall | 2in | ||
| Number of days with rainfall | 2 day(s) (8%) | ||
| Humidity | 75% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 23% | ||
| Length of day | 12:01 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Iquitos in september
In the month of september, maximum temperature is 94°F and minimum temperature is 77°F (for an average temperature of 85°F). The climate is very warm in that locality in this month. With 7.7in over 12 days, rainfall can happen during your vacations. But this is pretty moderate and it will not be continuous.
With a correct climate, september is okay (but not the best month) for traveling in this locality.
| September | |||
| Average temperature | 85°F | ||
| Highest temperature | 94°F | ||
| Lowest temperature | 77°F | ||
| Rainfall | 7.7in | ||
| Number of days with rainfall | 12 day(s) (39%) | ||
| Humidity | 89% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 42% | ||
| Length of day | 12:05 | ||
| Our opinion at whereandwhen.net | good |
Climate in Machu Picchu in september
In the month of september, the mean temperature in Machu Picchu is 58°F (maximum temperature is 63°F and minimum temperature is 52°F). The climate quite good in this location in september. With 1.9in over 3 days, the rain will not be a problem during your trip.
With a good climate, september is a recommended month to go in that area in Peru.
| September | |||
| Average temperature | 58°F | ||
| Highest temperature | 63°F | ||
| Lowest temperature | 52°F | ||
| Rainfall | 1.9in | ||
| Number of days with rainfall | 3 day(s) (10%) | ||
| Humidity | 72% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 22% | ||
| Length of day | 12:01 | ||
| Our opinion at whereandwhen.net | good |
All cities in Peru in september
| Lima in september | perfect weather |
| Arequipa in september | perfect weather |
| Cusco in september | tolerable weather |
| Iquitos in september | good weather |
| Machu Picchu in september | good weather |
| Ayacucho in september | tolerable weather |
| Barranca in september | perfect weather |
| Chiclayo in september | perfect weather |
| Chimbote in september | perfect weather |
| Huancayo in september | tolerable weather |
| Huaraz in september | bad weather |
| Juliaca in september | very bad weather |
| Máncora in september | perfect weather |
| Paracas in september | good weather |
| Parque Nacional Bahuaja Sonene in september | good weather |
| Pucallpa in september | good weather |
| Puerto Maldonado in september | good weather |
| Puno in september | tolerable weather |
| San Vicente de Cañete in september | good weather |
| Tacna in september | perfect weather |
| Vinicunca in september | very bad weather |
| Angoteros in september | good weather |
| Atico in september | perfect weather |
| Bayóvar in september | perfect weather |
| Boca del Rio in september | perfect weather |
| Boliviamar in september | good weather |
| Caballococha in september | good weather |
| Camaná in september | perfect weather |
| Canyon de Colca in september | perfect weather |
| Catarata Gocta in september | tolerable weather |
| Chala in september | perfect weather |
| Chan Chan (Huanchaco) in september | perfect weather |
| Choquequirao in september | tolerable weather |
| Contamana in september | good weather |
| Huarmey in september | perfect weather |
| Huayhuash in september | very bad weather |
Weather data for Peru in september:
Weather data for Peru in september is derived from an average of the weather forecast since 2009 in Peru. There is a margin of error and these forecasts are to be considered as general information only. The weather in Peru can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Peru.