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May Weather in El Rosario, Peru

Last updated: August 27, 2025

In May, the average temperature in El Rosario, Peru hovers around 5°C (41°F). Be prepared for potential lows of -5°C (23°F) and highs reaching 14°C (57°F). With 83 mm (3.3 in) of precipitation spread over 21 days, it's essential to keep an umbrella handy. Additionally, expect a high humidity level of 85%, making the air feel a bit more damp and chilly.

May Temperature in El Rosario

In May in El Rosario, the average temperature is 5°C (41°F). Maximums can reach 14°C (57°F), while minimums can drop as low as -5°C (23°F). Be prepared for chilly weather and pack accordingly if you're planning to visit.

May Weather in El Rosario: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in El Rosario, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Rosario, May typically has an average temperature of 5°C (41°F), with highs reaching up to 14°C (57°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec434343424139383940424444
Data source: Temperature data for El Rosario 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 El Rosario

In El Rosario in May, the precipitation amount is 83 mm (3.3 in) spread over 21 days.

May Precipitation Trends in El Rosario

The chart displays monthly precipitation patterns in El Rosario, 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 El Rosario, May typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec1842232421108337264280121149192
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in El Rosario

In El Rosario in May, humidity is 85%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a challenge as the cold air clings to your skin.

May Average Humidity in El Rosario

This chart illustrates the average monthly humidity levels in El Rosario, 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 El Rosario is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%91%89%85%65%47%38%40%56%76%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in El Rosario

In El Rosario in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in El Rosario.

Maximum UV Index Levels in El Rosario for May

The chart shows the monthly maximum UV Index (UVI) for El Rosario 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 El Rosario typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191919181512131517181818
Data source: El Rosario 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 El Rosario Compares to Other Months

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

This table compares monthly weather conditions in El Rosario, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)184 mm (7.2 inches)91%extreme
February Weather6°C (43°F)223 mm (8.8 inches)90%extreme
March Weather6°C (43°F)242 mm (9.5 inches)91%extreme
April Weather6°C (42°F)110 mm (4.3 inches)89%extreme
May Weather5°C (41°F)83 mm (3.3 inches)85%extreme
June Weather4°C (40°F)37 mm (1.4 inches)65%extreme
July Weather4°C (39°F)25 mm (1.0 inches)47%extreme
August Weather4°C (39°F)42 mm (1.7 inches)38%extreme
September Weather5°C (41°F)80 mm (3.1 inches)40%extreme
October Weather5°C (42°F)121 mm (4.7 inches)56%extreme
November Weather6°C (44°F)149 mm (5.8 inches)76%extreme
December Weather6°C (44°F)192 mm (7.5 inches)90%extreme

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