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May Weather in San Juan de Chacna, Peru

Last updated: August 27, 2025

In San Juan de Chacna, Peru, the average temperature in May is a cool 8°C (46°F). Visitors may experience a range of temperatures, with a minimum of -2°C (28°F) and a maximum reaching 17°C (63°F). During this month, expect 39 mm (1.5 in) of precipitation spread over 14 days, contributing to an average humidity of 84%.

May Temperature in San Juan de Chacna

In May in San Juan de Chacna, the average temperature is 8°C (46°F), with a maximum reaching 17°C (63°F) and a minimum dropping as low as -2°C (28°F). Travelers should be prepared for a range of temperatures and dress in layers to ensure comfort throughout the day.

May Weather in San Juan de Chacna: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Juan de Chacna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juan de Chacna, May typically has an average temperature of 8°C (46°F), with highs reaching up to 17°C (63°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec494948474645454548495049
Data source: Temperature data for San Juan de Chacna 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 San Juan de Chacna

In San Juan de Chacna in May, the precipitation amount is 39 mm (1.5 in) during 14 days, indicating a relatively wet period for this time of year.

May Precipitation Trends in San Juan de Chacna

The chart displays monthly precipitation patterns in San Juan de Chacna, 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 San Juan de Chacna, May typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec205249232963914152552108155215
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Juan de Chacna

In San Juan de Chacna in May humidity is 84%. With an average temperature of 8°C (46°F), this humidity feels like a chilly mist wrapping around you, making outdoor exploration cumbersome and layering your clothing a necessity for comfort.

May Average Humidity in San Juan de Chacna

This chart illustrates the average monthly humidity levels in San Juan de Chacna, 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 San Juan de Chacna is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%90%90%84%67%53%47%53%67%75%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Juan de Chacna

In San Juan de Chacna 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 San Juan de Chacna, you can check here.

Maximum UV Index Levels in San Juan de Chacna for May

The chart shows the monthly maximum UV Index (UVI) for San Juan de Chacna 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 San Juan de Chacna typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191919171411131416181918
Data source: San Juan de Chacna 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 San Juan de Chacna Compares to Other Months

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

This table compares monthly weather conditions in San Juan de Chacna, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)205 mm (8.1 inches)89%extreme
February Weather9°C (49°F)249 mm (9.8 inches)90%extreme
March Weather9°C (49°F)232 mm (9.1 inches)90%extreme
April Weather9°C (48°F)96 mm (3.8 inches)90%extreme
May Weather8°C (46°F)39 mm (1.5 inches)84%extreme
June Weather7°C (45°F)14 mm (0.6 inches)67%extreme
July Weather7°C (45°F)15 mm (0.6 inches)53%extreme
August Weather7°C (46°F)25 mm (1.0 inches)47%extreme
September Weather9°C (48°F)52 mm (2.0 inches)53%extreme
October Weather9°C (49°F)108 mm (4.3 inches)67%extreme
November Weather10°C (50°F)154 mm (6.1 inches)75%extreme
December Weather10°C (50°F)215 mm (8.5 inches)82%extreme

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