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May Weather in Cayna, Peru

Last updated: August 27, 2025

In Cayna, Peru, the average temperature in May hovers around 7°C (45°F). You'll experience a minimum of -4°C (26°F) and a delightful maximum of 16°C (62°F). Be prepared for some wet days, as precipitation averages 80 mm (3.1 in) spread across 20 days. Additionally, the average humidity is quite high at 85%, making it feel a bit chillier.

May Temperature in Cayna

In May in Cayna, the average temperature is 7°C (45°F). Maximum temperatures can reach 16°C (62°F), while the minimum can be as low as -4°C (26°F). This range suggests that travelers should prepare for cool to mild weather and pack accordingly.

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

The chart illustrates May temperature patterns in Cayna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cayna, May typically has an average temperature of 7°C (45°F), with highs reaching up to 16°C (62°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec464646454543424344454747
Data source: Temperature data for Cayna 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 Cayna

In Cayna in May, the precipitation amount is 80 mm (3.1 in) over a span of 20 days.

May Precipitation Trends in Cayna

The chart displays monthly precipitation patterns in Cayna, 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 Cayna, May typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec1651871881068043354874118136171
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cayna

In Cayna in May, humidity is 85%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.

May Average Humidity in Cayna

This chart illustrates the average monthly humidity levels in Cayna, 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 Cayna 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 Cayna

In Cayna 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 Cayna.

Maximum UV Index Levels in Cayna for May

The chart shows the monthly maximum UV Index (UVI) for Cayna 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 Cayna typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191919181513141517181818
Data source: Cayna 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 Cayna Compares to Other Months

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

This table compares monthly weather conditions in Cayna, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)165 mm (6.5 inches)91%extreme
February Weather8°C (47°F)187 mm (7.4 inches)90%extreme
March Weather8°C (46°F)188 mm (7.4 inches)91%extreme
April Weather7°C (46°F)106 mm (4.2 inches)89%extreme
May Weather7°C (45°F)80 mm (3.1 inches)85%extreme
June Weather6°C (44°F)43 mm (1.7 inches)65%extreme
July Weather6°C (42°F)35 mm (1.4 inches)47%extreme
August Weather6°C (43°F)48 mm (1.9 inches)38%extreme
September Weather6°C (44°F)74 mm (2.9 inches)40%extreme
October Weather7°C (45°F)118 mm (4.7 inches)56%extreme
November Weather8°C (47°F)136 mm (5.3 inches)76%extreme
December Weather8°C (47°F)171 mm (6.7 inches)90%extreme

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