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May Weather in Santa Cruz, Peru

Last updated: August 27, 2025

In Santa Cruz, Peru during May, you can expect an average temperature of 12°C (54°F). The mercury can dip as low as 4°C (39°F) or rise to a comfortable 18°C (64°F). Be prepared for some rain, with precipitation amounting to 95 mm (3.7 in) over 19 days. Additionally, the average humidity hovers around 85%, ensuring a pleasantly moist atmosphere.

May Temperature in Santa Cruz

In May in Santa Cruz, the average temperature is 12°C (54°F). Maximums can reach 18°C (64°F), and minimums can be as low as 4°C (39°F). It’s a great time to enjoy milder weather and explore the area comfortably while wearing layers.

May Weather in Santa Cruz: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Santa Cruz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Cruz, May typically has an average temperature of 12°C (54°F), with highs reaching up to 18°C (64°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec535353535454545555545554
Data source: Temperature data for Santa Cruz 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 Santa Cruz

In Santa Cruz in May, the precipitation amount is 95 mm (3.7 in), occurring over the course of 19 days.

May Precipitation Trends in Santa Cruz

The chart displays monthly precipitation patterns in Santa Cruz, 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 Santa Cruz, May typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec307343437229951612165010395198
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santa Cruz

In Santa Cruz in May, humidity is 85%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making traveling not only uncomfortable but also exhausting as the damp air clings to your skin and slows your movements.

May Average Humidity in Santa Cruz

This chart illustrates the average monthly humidity levels in Santa Cruz, 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 Santa Cruz 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 Santa Cruz

In Santa Cruz 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 Santa Cruz, you can check here.

Maximum UV Index Levels in Santa Cruz for May

The chart shows the monthly maximum UV Index (UVI) for Santa Cruz 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 Santa Cruz typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171818171412131416171716
Data source: Santa Cruz 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 Santa Cruz Compares to Other Months

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

This table compares monthly weather conditions in Santa Cruz, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)307 mm (12.1 inches)91%extreme
February Weather12°C (54°F)343 mm (13.5 inches)90%extreme
March Weather12°C (54°F)437 mm (17.2 inches)91%extreme
April Weather12°C (54°F)229 mm (9.0 inches)89%extreme
May Weather12°C (54°F)95 mm (3.7 inches)85%extreme
June Weather12°C (54°F)16 mm (0.6 inches)65%extreme
July Weather12°C (55°F)12 mm (0.5 inches)47%extreme
August Weather13°C (55°F)16 mm (0.6 inches)38%extreme
September Weather13°C (55°F)50 mm (2.0 inches)40%extreme
October Weather12°C (55°F)103 mm (4.0 inches)56%extreme
November Weather13°C (55°F)95 mm (3.7 inches)76%extreme
December Weather12°C (54°F)198 mm (7.8 inches)90%extreme

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