Historical climate averages in santiago for September
Chile · 2025–2025 · 8 daily observations
A month-level reference built from observed daily highs, lows, and precipitation values. Use it to see how September fits into santiago's annual pattern, then jump to nearby months below.
Average High
34.1°C
Average Low
23.0°C
Record High
36.0°C
Record Low
22.0°C
Average Daily Precipitation
3.1mm
Data Coverage
2025–2025 (8 obs)
September in context
September in santiago is the warmest month by average daytime high. Average highs reach 34.1°C and average lows settle near 23.0°C.
the wettest month by average daily precipitation. Average daily precipitation is 3.1mm.
This snapshot is built from 8 daily observations collected between 2025 and 2025. Record highs and lows mark the single hottest and coldest daily readings in the archive for this month.
Relative to the full year
- Daytime highs: +0.9°C vs city-wide monthly average
- Nighttime lows: +0.2°C vs city-wide monthly average
- Daily precipitation: +1.0mm vs city-wide monthly average
Archive quality
- Coverage: 2025–2025 (8 obs)
- Temperature span: 14.0°C between record low and high
- Driest month benchmark: July at 1.0mm
How this summary is calculated
PastWeather groups all recorded days for September, then calculates the average daytime high, average nighttime low, and average daily precipitation value for that month. The cards above stay tied to observed data rather than travel copy or generic climate descriptions.
Average high / low
Mean daily maximum and minimum temperatures across every recorded September day in the archive.
Record extremes
The single hottest and coldest daily readings observed during this month, useful for understanding outlier risk.
Precipitation note
Precipitation is shown as an average daily value for this month, which helps compare wetter and drier parts of the year on the same basis.
Explore another month
Move month by month or jump straight to the warmest, coldest, or wettest part of the year for santiago.