- Climate Type
- Mediterranean with semi-arid features
Updated July 2026 · Sources cited: climatestotravel.com, en.climate-data.org
Good to know
Good to Know
- January–March is the absolute dry season with near-zero rainfall, ideal for outdoor activities.
- Winter (June–August) is the rainy season but still dry by global standards; precipitation is modest even at peak.
- Night temperatures in winter can drop below freezing; daytime can be pleasant but bring warm layers for mornings and evenings.
- Spring (September–November) and autumn (March–May) offer mild, balanced weather and are considered the most comfortable months to visit.
- Summer days can exceed 30°C (86°F); the Chilean sun is intense. Plan for high UV index and bring high-SPF sunscreen.
- The city sits in a valley where pollutants accumulate, and winter fog is common on stable-weather days.
- Day–night temperature swings are significant year-round; layered clothing is essential.
Autumn
- Months
- March to May
- Characteristics
- Cooling temperatures, transitional with increasing rainfall toward May
Temperature Range
- Fahrenheit Range
- 75°F to 44°F
- Daytime Low Celsius
- 7
- Daytime High Celsius
- 24
- Daytime Low Fahrenheit
- 45
- Daytime High Fahrenheit
- 75
Spring
- Months
- September to November
- Characteristics
- Warming temperatures, transitional
Temperature Range
- Fahrenheit Range
- 64°F to 41°F
- Daytime Low Celsius
- 5
- Daytime High Celsius
- 18
- Daytime Low Fahrenheit
- 41
- Daytime High Fahrenheit
- 64
Summer
- Months
- December to February
- Characteristics
- Warm, sunny, very dry with minimal precipitation
Temperature Range
- Fahrenheit Range
- 77°F to 54°F
- Daytime Low Celsius
- 12
- Daytime High Celsius
- 25
- Daytime Low Fahrenheit
- 54
- Daytime High Fahrenheit
- 77
Winter
- Months
- June to August
- Characteristics
- Cold, coolest season; most rainfall occurs; night frost possible
Temperature Range
- Fahrenheit Range
- 52°F to 36°F
- Daytime Low Celsius
- 2
- Daytime High Celsius
- 11
- Daytime Low Fahrenheit
- 36
- Daytime High Fahrenheit
- 52
Rainfall
- Pattern
- Distinct wet and dry seasons
- Annual Total Mm
- 635
- Annual Total Inches
- 25
Driest Period
- Months
- December to March
- Rainfall Mm
- 1–11 mm per month
- Characteristics
- Almost no rain; completely dry season
Wettest Period
- Months
- May to September
- Peak Month
- June
- Characteristics
- Main rainfall season but still modest
- Peak Rainfall Mm
- 123
- Peak Rainfall Inches
- 4.8
Snowfall
- Details
- Snow occasionally falls in July, typically in eastern districts at higher elevation. Notable occurrences: July 2007 and July 2017
- Frequency
- Very rare
Off Season
- Worst Months
- June, July, August
- Reasoning
- Coldest months with most rainfall and reduced sunshine
Peak Season
- Best Months
- March, April, October, November, December
- Reasoning
- Comfortable temperatures between 21–26°C (69–79°F) with moderate rainfall
Climate Type
Mediterranean with semi-arid features
Temperature Extremes
- Year Recorded
- 2019
- Absolute Highest Recorded Celsius
- 39
- Absolute Highest Recorded Fahrenheit
- 102.7
AI-generated estimateData refreshed July 2026
Sources cited for this category
These are the sources cited in this climate & weather research for this city. Individual figures may not each trace to one of them.
More About Santiago
Data last updated July 2026 · Verify anything important.