Temperature
Pleasant by day, cold at night.
67°Ftypical September high
Typical range
September climate
September in Santiago
Chile · South America
Mild days with cool nights and plenty of sun.
Excellent time to visit
Mid to late
Daytime high
67°F
Lows around 45°F
Rain
Several rainy days
Sun
10 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 8 wet days, the highest monthly average.
27%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
9.9 hSeptember sunshine
Heat & humidity by month
Very drySeptember Heat feel
Easy airWarm airHot airHumid air
Hourly temperature pattern
In September, afternoons feel about 63° and nights feel near 44°.
Very coldColdCoolComfortableWarmNight hours
Clear sky
Partly cloudy skies this month.
49%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
3 mphSeptember Calm
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 66°F, easing to about 60°F in early evening.
Avg temp Typical range
Morning51°F
Rain13%
Cloud49%
Humid airLow
Sun intensityLow
Midday63°F
Rain12%
Cloud48%
Humid airLow
Sun intensityStrong
Best windowLate afternoon66°F
Rain18%
Cloud52%
Humid airLow
Sun intensityStrong
Early evening60°F
Rain16%
Cloud52%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 85 | 62 | 0.2 | 1 | 13.7 | 56 |
| Feb | 84 | 61 | 0.2 | 1 | 12.9 | 58 |
| Mar | 82 | 58 | 0.3 | 1 | 11.6 | 58 |
| Apr | 74 | 51 | 0.9 | 3 | 10.0 | 61 |
| May | 67 | 45 | 2.2 | 5 | 8.3 | 64 |
| Jun | 61 | 40 | 4.2 | 7 | 7.3 | 67 |
| Jul | 61 | 39 | 3.0 | 6 | 7.9 | 66 |
| Aug | 64 | 42 | 3.5 | 8 | 8.8 | 68 |
| Sep | 67 | 45 | 2.2 | 8 | 9.9 | 68 |
| Oct | 72 | 49 | 1.6 | 6 | 11.6 | 65 |
| Nov | 78 | 54 | 0.6 | 3 | 12.7 | 59 |
| Dec | 83 | 58 | 0.2 | 1 | 13.7 | 56 |
Similar climates
Similar
Similar travel styleMendozaArgentinaSimilar travel styleSan Miguel de AllendeMexicoSimilar travel styleIstanbulTurkeySimilar travel styleFlorenceItaly
Want a side-by-side climate view? Compare Santiago with Mendoza.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 28, 2026
Data & methodology