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May Weather in Santiago de Tolu, Colombia

Last updated: August 23, 2025

In Santiago de Tolu, Colombia, the average temperature in May is a warm 28°C (82°F). Expect a comfortable minimum of 24°C (75°F), while highs can reach up to 34°C (94°F). Be prepared for a fair amount of rain, with 257 mm (10.1 in) of precipitation spread over 29 days. With an average humidity of 79%, it’s a lush and vibrant time of year!

May Temperature in Santiago de Tolu

In May in Santiago de Tolu, the average temperature is 28°C (82°F). Maximum temperatures can reach 34°C (94°F), while the minimum can drop to as low as 24°C (75°F). This makes Santiago de Tolu an ideal destination for travelers seeking warm and pleasant weather.

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

The chart illustrates May temperature patterns in Santiago de Tolu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago de Tolu, May typically has an average temperature of 28°C (82°F), with highs reaching up to 34°C (94°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec828383828282828281818182
Data source: Temperature data for Santiago de Tolu generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Santiago de Tolu

In Santiago de Tolu in May, the precipitation amount is 257 mm (10.1 in) spread over 29 days.

May Precipitation Trends in Santiago de Tolu

The chart displays monthly precipitation patterns in Santiago de Tolu, 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 de Tolu, May typically receives around 257 mm (10.1 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec24104515025723521622522321517256
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santiago de Tolu

In Santiago de Tolu in May humidity is 79%. With an average temperature of 28°C (82°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration more strenuous and requiring frequent breaks for hydration.

May Average Humidity in Santiago de Tolu

This chart illustrates the average monthly humidity levels in Santiago de Tolu, 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 de Tolu is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%67%65%67%79%87%88%87%87%86%86%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Santiago de Tolu

In Santiago de Tolu in May, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Santiago de Tolu, you can check here.

Maximum UV Index Levels in Santiago de Tolu for May

The chart shows the monthly maximum UV Index (UVI) for Santiago de Tolu 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 de Tolu typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111213151413131313131110
Data source: Santiago de Tolu 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 de Tolu Compares to Other Months

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

This table compares monthly weather conditions in Santiago de Tolu, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)24 mm (1.0 inches)70%extreme
February Weather28°C (83°F)10 mm (0.4 inches)67%extreme
March Weather28°C (83°F)45 mm (1.8 inches)65%extreme
April Weather28°C (83°F)150 mm (5.9 inches)67%extreme
May Weather28°C (82°F)257 mm (10.1 inches)79%extreme
June Weather28°C (82°F)235 mm (9.2 inches)87%extreme
July Weather28°C (82°F)216 mm (8.5 inches)88%extreme
August Weather28°C (82°F)225 mm (8.9 inches)87%extreme
September Weather27°C (82°F)223 mm (8.8 inches)87%extreme
October Weather27°C (81°F)215 mm (8.4 inches)86%extreme
November Weather27°C (81°F)172 mm (6.8 inches)86%extreme
December Weather28°C (82°F)56 mm (2.2 inches)80%very high

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