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Rengo Weather in September
Rengo in September averages 18°C (64°F) during the day and 4°C (39°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Rengo in September
Typically, you can expect about 4 days of rain this month, with 81 mm (3.2 in) on average. When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.
Temperature in Rengo in September
Temperatures in Rengo in September top out at 18°C (64°F) and drop to 4°C (39°F) overnight. Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Rengo in September
The area enjoys a balanced 161 hours of sunlight, ensuring it's neither too overcast nor too sunny.For Rengo itself, January, February, March, April, October, November and December generally stand 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.
Rengo Temperature in September
Min Temperature
4°C (39°F)
Max Temperature
18°C (64°F)
Chance of Rain
14%
Precipitation
81 mm (3.2 in)
Rainy days
4 days
Humidity
83% *
Sunshine
161 hours *
Percentage Sunshine
*
* Data from: Curicó, Chile (62 KM, 38 Miles).
Rengo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rengo - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Rengo typically stay consistent throughout September, with daily highs averaging around 18°C (64°F). Nights are cold, with lows typically ranging from 5°C (41°F) to 8°C (46°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 Rengo in September
Browse day-by-day weather records for Rengo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rengo historical weather extremes in September
The extremes listed below come from historical weather data collected in Rengo from 2004 through 2026.
- On September 24, 2013, temperatures climbed to 27°C (81°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 5°C (41°F), recorded on September 27, 2009.
- The coldest night in September in Rengo was on September 14, 2021, with a minimum of -8°C (18°F).
- Peak precipitation in September occurred on September 18, 2018, when 49 mm (1.9 in) of precipitation was measured.
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 Rengo in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Rengo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling6/10 -
Walking6/10 -
Barbeque6/10 -
Camping4/10 -
Outdoor sports9/10
Rengo 3-Day Forecast
More climate data for Rengo
Temperature Rainfall Sunshine Humidity
See the full Rengo 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.
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