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Santiago Weather in May
Thinking of visiting Santiago in May? Expect pleasant temperatures reaching 18°C (64°F) during the day, dropping to 5°C (41°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Santiago in May
This month experiences about 3 days of rain according to historical data, averaging 74 mm (2.9 in). Although rain is not especially frequent, individual showers can still be quite heavy.
Temperature in Santiago in May
Santiago in May gets highs of 18°C (64°F) during the day and drops to 5°C (41°F) at night. Conditions are often most pleasant around the middle of the day. At 5°C (41°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Santiago in May
The month experiences a moderate amount of sunlight, with 155 hours of sunshine. This provides a nice balance between sunshine and clouds.Should you favor a climate that's both dry and comfortably warm, January, February, March, April, October, November and December typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Santiago Temperature in May
Min Temperature
5°C (41°F)
Max Temperature
18°C (64°F)
Chance of Rain
10%
Precipitation
74 mm (2.9 in)
Rainy days
3 days
Humidity
78%
Sunshine
155 hours
Percentage Sunshine
Santiago Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Santiago - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Santiago typically drop from around 21°C (70°F) at the start of May to approximately 17°C (63°F) by the end. Nights are cold, with lows typically ranging from 4°C (39°F) to 6°C (43°F).
Average temperatures in May
Historical weather records for Santiago in May
Browse day-by-day weather records for Santiago spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santiago historical weather extremes in May
The extremes listed below come from historical weather data collected in Santiago from 1976 through 2026.
- The hottest May day on record in Santiago reached 31°C (88°F) (May 6, 2002).
- The coldest May day was on May 27, 1984, with a maximum of 8°C (46°F).
- The coldest night in May in Santiago was on May 30, 1996, with a minimum of -6°C (21°F).
Best Places in Chile in May
Find out more about the weather in Chile and which places have the best travel conditions in this month. See all of Chile in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Santiago in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Santiago in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping4/10 -
Outdoor sports9/10
Santiago 3-Day Forecast
More climate data for Santiago
Temperature Rainfall Sunshine Humidity
See the full Santiago climate overview or explore weather in Chile.
Popular in May
Where to go in May - average daytime high across popular destinations.
Hanga Roa
23°C (73°F) La Serena19°C (66°F) San Pedro de Atacama
19°C (66°F) Santiago18°C (64°F) Concón17°C (63°F) Valparaíso16°C (61°F) Viña del Mar17°C (63°F) Pucón
13°C (55°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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