Chile
Santiago de Chile in September: weather & travel advice
This month's data profile
Strong month under the current formula
Santiago de Chile in September is climatically well suited to active holidays and hiking, city breaks and family holidays. The average daily high is around 19 °C. With about 4 rainy days it is dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
87/100 · #5
Warmth
#9
Dryness
#8
Sun
#7
Published best categories: City break, Active
Santiago de Chile · SeptemberPhoto: Freddy Alexander Bugueño Tolmo · CC BY-SA 3.0Climate facts
- Average high
- 19 °C
- Average low
- 6 °C
- Rainy days (est.)
- 4 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 49 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| August | 17 | 4 | 5 | 37 | 4.0 | 50 | 1.5 | 79 |
| September (selected) | 19 | 6 | 4 | 22 | 5.5 | 49 | 1.6 | 87 |
| October | 23 | 8 | 2 | 13 | 7.6 | 42 | 1.8 | 95 |
How do the previous and next months compare?
Baseline: September (87/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| August | -8 | -2.1 °C | -1.2 °C | +1.1 | +14.9 mm | -1.5 h | +1.6 % | -0.1 m/s |
| October | +8 | +3.2 °C | +2.1 °C | -1.3 | -9.9 mm | +2.1 h | -6.7 % | +0.2 m/s |
All twelve months in context
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Where to stay in Santiago de Chile
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Useful next decisions
Frequently asked questions
How warm is Santiago de Chile in September?
The average daily high is around 19 °C, with an average daily low of about 6 °C.
Does it rain a lot in Santiago de Chile in September?
The curated estimate is about 4 rainy days per month, not a directly measured long-term average. Total precipitation averages around 22 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Santiago de Chile?
By the climate score, March, April, October and November are the strongest months for Santiago de Chile. September is not among them.