May Weather in Indiana, Peru

Last updated: August 27, 2025

In Indiana, Peru, the average temperature in May hovers around 26°C (79°F). Expect minimums of 20°C (69°F) and maximums reaching 33°C (91°F). Rainfall can be significant, with an average precipitation of 236 mm (9.3 in) spread over 26 days. Additionally, the average humidity is a steamy 91%, creating a warm and damp atmosphere.

May Temperature in Indiana

In May in Indiana, the average temperature is 26°C (79°F), with maximums reaching 33°C (91°F) and minimums dropping to as low as 20°C (69°F). This pleasant climate makes it an ideal time for outdoor activities and exploration.

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

The chart illustrates May temperature patterns in Indiana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Indiana, May typically has an average temperature of 26°C (79°F), with highs reaching up to 33°C (91°F) and lows dropping to around 20°C (69°F).

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

May Precipitation in Indiana

In Indiana in May, the total precipitation amount is 236 mm (9.3 in) spread over 26 days.

May Precipitation Trends in Indiana

The chart displays monthly precipitation patterns in Indiana, 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 Indiana, May typically receives around 236 mm (9.3 inches) of precipitation spread over approximately 26 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 Indiana

In Indiana in May, humidity is 91%. With an average temperature of 26°C (79°F), this humidity feels like navigating through an invisible blanket, making even short strolls feel laborious and leaving a sticky sheen on your skin, which can be overwhelming for travelers.

May Average Humidity in Indiana

This chart illustrates the average monthly humidity levels in Indiana, 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 Indiana is approximately 91%, 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 Indiana

In Indiana 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 Indiana, you can check here.

Maximum UV Index Levels in Indiana for May

The chart shows the monthly maximum UV Index (UVI) for Indiana 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 Indiana typically reaches 14, which falls under the extreme exposure category.

Data source: Indiana 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 Indiana Compares to Other Months

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

This table compares monthly weather conditions in Indiana, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	257 mm (10.1 inches)	83%	extreme
February Weather	26°C (80°F)	212 mm (8.3 inches)	79%	extreme
March Weather	26°C (79°F)	312 mm (12.3 inches)	82%	extreme
April Weather	26°C (79°F)	321 mm (12.7 inches)	86%	extreme
May Weather	26°C (79°F)	236 mm (9.3 inches)	91%	extreme
June Weather	26°C (78°F)	246 mm (9.7 inches)	85%	extreme
July Weather	25°C (78°F)	175 mm (6.9 inches)	76%	extreme
August Weather	26°C (79°F)	115 mm (4.5 inches)	68%	extreme
September Weather	27°C (80°F)	179 mm (7.0 inches)	60%	extreme
October Weather	27°C (80°F)	216 mm (8.5 inches)	62%	extreme
November Weather	26°C (80°F)	239 mm (9.4 inches)	76%	extreme
December Weather	26°C (79°F)	285 mm (11.2 inches)	87%	extreme