May Weather in Santiago, Colombia

Last updated: August 23, 2025

In May, the average temperature in Santiago, Colombia hovers around 13°C (56°F). While daily lows can dip to 8°C (47°F), you may enjoy some warmer moments with a maximum of 21°C (70°F). Be prepared for significant precipitation, with 353 mm (13.9 in) expected over 29 days, contributing to a high average humidity of 93%.

May Temperature in Santiago

In May in Santiago, the average temperature is 13°C (56°F). The maximum can reach 21°C (70°F), while the minimum can be as low as 8°C (47°F). This mild climate makes it a great time to explore and enjoy outdoor activities in Santiago.

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 13°C (56°F), with highs reaching up to 21°C (70°F) and lows dropping to around 8°C (47°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 total precipitation amount is 353 mm (13.9 in) spread over 29 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 353 mm (13.9 inches) of precipitation spread over approximately 29 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Santiago

In Santiago in May, humidity is 93%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making travel 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 93%, 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 reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Santiago, you can check 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 17, 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	13°C (56°F)	205 mm (8.1 inches)	72%	extreme
February Weather	14°C (57°F)	218 mm (8.6 inches)	66%	extreme
March Weather	14°C (57°F)	350 mm (13.8 inches)	74%	extreme
April Weather	13°C (56°F)	336 mm (13.2 inches)	83%	extreme
May Weather	13°C (56°F)	353 mm (13.9 inches)	93%	extreme
June Weather	13°C (55°F)	292 mm (11.5 inches)	93%	extreme
July Weather	12°C (54°F)	231 mm (9.1 inches)	84%	extreme
August Weather	12°C (54°F)	161 mm (6.3 inches)	61%	extreme
September Weather	13°C (55°F)	186 mm (7.3 inches)	53%	extreme
October Weather	13°C (56°F)	274 mm (10.8 inches)	67%	extreme
November Weather	14°C (57°F)	305 mm (12.0 inches)	78%	extreme
December Weather	13°C (56°F)	272 mm (10.7 inches)	85%	extreme