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May Weather in Callalli, Peru

Last updated: August 27, 2025

In May, the average temperature in Callalli, Peru is a crisp 4°C (39°F). Expect chilly nights with minimum temperatures dipping to -9°C (16°F), while daytime highs can reach a pleasant 15°C (59°F). Rainfall is moderate, with 34 mm (1.3 in) of precipitation spread over 11 days, contributing to an average humidity level of 87%. Be prepared for a mix of weather!

May Temperature in Callalli

In May in Callalli, the average temperature is 4°C (39°F). The maximum can reach 15°C (59°F), and the minimum can be as low as -9°C (16°F). Travelers should be prepared for chilly weather and pack accordingly.

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

The chart illustrates May temperature patterns in Callalli, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Callalli, May typically has an average temperature of 4°C (39°F), with highs reaching up to 15°C (59°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec424241403938383942424443
Data source: Temperature data for Callalli 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 Callalli

In Callalli in May, the precipitation amount is 34 mm (1.3 in) spread over 11 days.

May Precipitation Trends in Callalli

The chart displays monthly precipitation patterns in Callalli, 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 Callalli, May typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1961942018634121111416980138
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Callalli

In Callalli in May, humidity is 87%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and gritty, as the air hangs heavy and clings to your skin.

May Average Humidity in Callalli

This chart illustrates the average monthly humidity levels in Callalli, 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 Callalli is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%92%91%87%76%57%51%67%77%85%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Callalli

In Callalli 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 Callalli, you can check here.

Maximum UV Index Levels in Callalli for May

The chart shows the monthly maximum UV Index (UVI) for Callalli 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 Callalli typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec242121181411131517192022
Data source: Callalli 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 Callalli Compares to Other Months

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

This table compares monthly weather conditions in Callalli, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)196 mm (7.7 inches)92%extreme
February Weather5°C (42°F)194 mm (7.6 inches)93%extreme
March Weather5°C (42°F)201 mm (7.9 inches)92%extreme
April Weather4°C (40°F)86 mm (3.4 inches)91%extreme
May Weather4°C (39°F)34 mm (1.3 inches)87%extreme
June Weather3°C (38°F)12 mm (0.5 inches)76%extreme
July Weather3°C (38°F)11 mm (0.4 inches)57%extreme
August Weather4°C (40°F)11 mm (0.4 inches)51%extreme
September Weather6°C (42°F)41 mm (1.6 inches)67%extreme
October Weather6°C (43°F)69 mm (2.7 inches)77%extreme
November Weather7°C (45°F)79 mm (3.1 inches)85%extreme
December Weather6°C (44°F)138 mm (5.4 inches)90%extreme

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