The 10 most alternative cities in South America
Discover South America's top 10 alternative cities! From Valparaíso's vibrant streets to La Paz's high-altitude charm and Medellín's innovative spirit.
Copiapó Weather in September
During September, Copiapó experiences high daytime temperatures of 23°C (73°F) and cooler nights around 11°C (52°F). Rainfall is low, averaging just 2 mm (0.1 in) for the month.
Rainfall in Copiapó in September
On average, there are about a single day with rain during this month, averaging 2 mm (0.1 in). On the rare occasion it rains this month, it usually amounts to very little.
Temperature in Copiapó in September
September tends to be one of the excellent months in Copiapó, with 23°C (73°F) in the afternoon and 11°C (52°F) overnight. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Copiapó in September
Enjoy a sunny month with about 237 hours of sunshine, the clear skies make Copiapó even more beautiful.For more travel ideas, our weather planner can help you explore destinations around the world.
Copiapó Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
23°C (73°F)
Chance of Rain
3%
Precipitation
2 mm (0.1 in)
Rainy days
a single day
Humidity
63%
Sunshine
237 hours
Percentage Sunshine
Copiapó Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Copiapó - and find the best time to visit.
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in Copiapó typically stay consistent throughout September, with daily highs averaging around 23°C (73°F). Nights are cool, with lows around 10°C (50°F).
Average temperatures in September
Historical weather records for Copiapó in September
Browse day-by-day weather records for Copiapó spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Copiapó historical weather extremes in September
Based on 20 years of weather observations in Copiapó between 2006 and 2026, these are the recorded extremes.
- Copiapó recorded its highest September temperature of 29°C (84°F) on September 10, 2023.
- On September 30, 2007, Copiapó saw its coldest September day with temperatures maxing out at 11°C (52°F).
- Nighttime temperatures dropped to 4°C (39°F) on September 16, 2013, marking the coldest September night on record.
Best Places in Chile in September
Find out more about the weather in Chile and which places have the best travel conditions in this month. See all of Chile 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 Copiapó in September
For Copiapó 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Copiapó in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming10/10 -
Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping10/10 -
Outdoor sports10/10
Copiapó 3-Day Forecast
More climate data for Copiapó
Temperature Rainfall Sunshine Humidity
See the full Copiapó climate overview or explore weather in Chile.
Popular in September
Where to go in September - average daytime high across popular destinations.
San Pedro de Atacama
21°C (70°F) Hanga Roa
21°C (70°F) La Serena19°C (66°F) Santiago18°C (64°F) Viña del Mar16°C (61°F) Concón16°C (61°F) Valparaíso15°C (59°F) Pucón
13°C (55°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most alternative cities in South America
Torres del Paine
Torres del Paine is an huge national park on the border with Argentina. It is possible to walk here along craters, high-rising mountain ridges, over glaciers and through vast majestic tundra.
Explore Patagonia
A tour through Patagonia brings you to the end of the world. That’s why Patagonia is a bucket list destination for many. We recommend to visit Patagonia from November to early March.
Enjoy the silence and peace in a spectacular landscape
This lodge guarantees privacy and exclusivity for those seeking to get away from mass tourism and enjoy the silence and peace in a spectacular landscape.