May weather forecast
Santiago, Chile

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Breathtaking view of the cityscape of Santiago, Chile, with the Andean Mountain Ranges in the distance
Breathtaking view of the cityscape of Santiago, Chile, with the Andean Mountain Ranges in the distance

Weather in May

As autumn advances, May arrives in Santiago bringing substantial changes in its wake. A heightened cloud presence casts an entirely different mood across the city, painting an overall cooler picture. Rainy days become more common, offering relief to public gardens and giving a fresh outlook to local streets. The rolling in of cooler temperate weather also brings a certain tranquility to the city of Santiago.

Temperature

May's arrival comes with a mild decrease in the average high-temperature, moving subtly from a pleasant 20.8°C (69.4°F) in April to an enjoyable 16.6°C (61.9°F). In Santiago, in May, the average low-temperature is a frosty 6.9°C (44.4°F).

Humidity

In Santiago, the average relative humidity in May is 44%.

Rainfall

In Santiago, during May, the rain falls for 5 days and regularly aggregates up to 21mm (0.83") of precipitation. In Santiago, during the entire year, the rain falls for 45 days and collects up to 190mm (7.48") of precipitation.

Snowfall

In Santiago, snow does not fall in January through May, August through December.

Daylight

The average length of the day in May in Santiago is 10h and 23min.
On the first day of the month, sunrise is at 07:17 and sunset at 18:02. On the last day of May, sunrise is at 07:38 and sunset at 17:42 -04.

Sunshine

The average sunshine in May in Santiago is 8.6h.

UV index

May through September, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, an average UV index of 3 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What is the average May temperature in Santiago?

The high-temperature, in May, in Santiago, records 16.6°C (61.9°F), while the low-temperature is 6.9°C (44.4°F).

What is the average humidity in May in Santiago?

In Santiago, Chile, the average relative humidity in May is 44%.

How many days does it rain in May in Santiago?

In Santiago, Chile, in May, during 5 rainfall days, 21mm (0.83") of precipitation is typically accumulated.

When it does not snow in Santiago?

In Santiago, snow does not fall in January through May, August through December.

Does it snow in Santiago in May?

In Santiago, in May, it doesn't snow. In June, it regularly snows.

What is the average length of the day in May in Santiago?

The average day length in May is 10h and 23min.

What time are sunrise and sunset in May in Santiago?

On the first day of May in Santiago, Chile, sunrise is at 07:17 and sunset at 18:02. On the last day of the month, sunrise is at 07:38 and sunset at 17:42 -04.

How long on average sun shines in May in Santiago?

The average sunshine duration in May is 8.6h.

When is the lowest UV index in Santiago?

The months with the lowest UV index in Santiago are May through September, with an average maximum UV index of 3.

What is the UV index intensity in May in Santiago?

In May, the average daily maximum UV index in Santiago is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average max. wind speed
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in May
Santiago, Chile

Average temperature in May - Santiago, Chile
  • Average high temperature in May: 16.6°C

The warmest month (with the highest average high temperature) is January (25.5°C).
The month with the lowest average high temperature is July (11.4°C).

  • Average low temperature in May: 6.9°C

The month with the highest average low temperature is January (12.4°C).
The coldest month (with the lowest average low temperature) is July (2.4°C).

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Average pressure in May
Santiago, Chile

Average pressure in May - Santiago, Chile
  • Average pressure in May: 1017.8mbar

The month with the highest atmospheric pressure is July (1019.6mbar).
The month with the lowest atmospheric pressure is February (1014.4mbar).

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Average wind speed in May
Santiago, Chile

Average wind speed in May - Santiago, Chile
  • Average wind speed in May: 7.3km/h

The windiest month (with the highest average wind speed) is June (9.2km/h).
The calmest months (with the lowest average wind speed) are March and April (7.2km/h).

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Average humidity in May
Santiago, Chile

Average humidity in May - Santiago, Chile
  • Average humidity in May: 44%

The month with the highest relative humidity is July (55%).
The months with the lowest relative humidity are March and April (36%).

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Average rainfall in May
Santiago, Chile

Average rainfall in May - Santiago, Chile
  • Average rainfall in May: 21mm

The wettest month (with the highest rainfall) is June (67mm).
The driest months (with the least rainfall) are January, February and March (1mm).

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Average rainfall days in May
Santiago, Chile

Average rainfall days in May - Santiago, Chile
  • Average rainfall days in May: 5 days

The month with the highest number of rainy days is June (7.4 days).
The month with the least rainy days is February (0.7 days).

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Average snowfall in May
Santiago, Chile

Average snowfall in May - Santiago, Chile
  • Average snowfall in May: 0mm

The month with the highest snowfall is June (6mm).
The months with the least snowfall are January, February, March, April, May, August, September, October, November and December (0mm).

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Average snowfall days in May
Santiago, Chile

Average snowfall days in May - Santiago, Chile
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is July (0.3 days).
The months with the least snowfall days are January, February, March, April, May, August, September, October, November and December (0 days).

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Average daylight in May /
Average sunshine in May
Santiago, Chile

Average daylight in May / Average sunshine in May - Santiago, Chile
  • Average daylight in May: 10h and 2min

The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is February (Average sunshine: 10h and 0min).
The months with the least sunshine are June and July (Average sunshine: 8h and 18min).

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Average sunshine days in May
Santiago, Chile

Average sunshine days in May - Santiago, Chile
  • Average sunshine days in May: 25.3 days

The month with the most sunshine days is March (29.9 days).
The month with the least sunshine days is June (22.2 days).

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Average UV index in May
Santiago, Chile

Average UV index in May - Santiago, Chile
  • Average UV index in May: 3

The months with the highest UV index are January, February, March, November and December (UV index 5).
The months with the lowest UV index are May, June, July, August and September (UV index 3).

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Average cloud cover in May
Santiago, Chile

Average cloud cover in May - Santiago, Chile
  • Average cloud cover in May: 21

The month with the most cloud cover is June (Cloud cover 26).
The month with the least cloud cover is February (Cloud cover 3).

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Average visibility in May
Santiago, Chile

Average visibility in May - Santiago, Chile
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Santiago, Chile

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