Concepción Weather in September
In September, Concepción averages a high of 16°C (61°F) and a low of 6°C (43°F), from 28 years of daily records (1975–2025).
16°C
Average high
61°F
6°C
Average low
43°F
26°C
Record high
78°F · September 2, 1985
-1°C
Record low
30°F · September 3, 2001
What September Is Like in Concepción
- The September heat record, 26°C (78°F) on September 2, 1985, has stood for 40 years.
- The warmest September in the record was 1994; the coldest was 2007.
At least 1 mm of rain falls on 28% of September days, and the month averages 64 mm in total.
Warmest: 1994 (17.4°C)Latest: 2019 (16.1°C)10-year averageLong-run average (15.8°C)
Look Up a Day in September
See the weather in Concepción on any September date, year by year.
Source: NOAA GHCN-Daily, Carriel Sur Intl (1973–2025). Averages cover 1975–2025. How we compute this