May Weather in Santiago, Colombia

Last updated: August 23, 2025

In Santiago, Colombia, the average temperature in May is a delightful 20°C (69°F), offering a pleasant climate. Expect a minimum of 15°C (59°F) and a maximum of 30°C (87°F), providing a range of comfort. However, be prepared for some rain, as 100 mm (3.9 in) of precipitation can fall over 15 days throughout the month. With an average humidity of 81%, you'll want to stay hydrated and enjoy the lush surroundings!

May Temperature in Santiago

In May in Santiago, the average temperature is 20°C (69°F). Maximums can reach up to 30°C (87°F), while minimums can drop to as low as 15°C (59°F). It's an ideal time to explore and enjoy outdoor activities in comfortable weather.

May Weather in Santiago: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Santiago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago, May typically has an average temperature of 20°C (69°F), with highs reaching up to 30°C (87°F) and lows dropping to around 15°C (59°F).

Data source: Temperature data for Santiago generated using information from the Copernicus Climate Change Service.

May Precipitation in Santiago

In Santiago in May, the precipitation amount is 100 mm (3.9 in) over a span of 15 days.

May Precipitation Trends in Santiago

The chart displays monthly precipitation patterns in Santiago, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Santiago, May typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Santiago

In Santiago in May, humidity is 81%. With an average temperature of 20°C (69°F), this humidity feels like a thick blanket embracing you, making travel a bit uncomfortable and sticky.

May Average Humidity in Santiago

This chart illustrates the average monthly humidity levels in Santiago, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Santiago is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Santiago

In Santiago in May, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Santiago.

Maximum UV Index Levels in Santiago for May

The chart shows the monthly maximum UV Index (UVI) for Santiago in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Santiago typically reaches 16, which falls under the extreme exposure category.

Data source: Santiago May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How May Weather in Santiago Compares to Other Months

Weather in Santiago varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Santiago, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Santiago, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (67°F)	43 mm (1.7 inches)	52%	extreme
February Weather	19°C (67°F)	74 mm (2.9 inches)	47%	extreme
March Weather	19°C (67°F)	112 mm (4.4 inches)	45%	extreme
April Weather	20°C (68°F)	117 mm (4.6 inches)	54%	extreme
May Weather	20°C (69°F)	100 mm (3.9 inches)	81%	extreme
June Weather	20°C (69°F)	62 mm (2.5 inches)	88%	extreme
July Weather	21°C (70°F)	23 mm (0.9 inches)	88%	extreme
August Weather	21°C (70°F)	28 mm (1.1 inches)	82%	extreme
September Weather	21°C (70°F)	57 mm (2.3 inches)	78%	extreme
October Weather	20°C (69°F)	118 mm (4.6 inches)	83%	extreme
November Weather	20°C (68°F)	101 mm (4.0 inches)	83%	extreme
December Weather	20°C (68°F)	29 mm (1.1 inches)	70%	extreme