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May Weather in San Bartolo, Peru

Last updated: August 27, 2025

In May, the average temperature in San Bartolo, Peru hovers around 18°C (64°F), with a minimum of 14°C (58°F) and a maximum of 21°C (69°F). Expect some rain, as precipitation reaches about 16 mm (0.6 in) over the course of 4 days. With an average humidity of 83%, prepare for a comfortably moist atmosphere.

May Temperature in San Bartolo

In May in San Bartolo, the average temperature is 18°C (64°F). Maximums can reach 21°C (69°F), while minimums can dip to as low as 14°C (58°F). This comfortable climate makes San Bartolo a perfect destination for travelers seeking mild weather and pleasant outdoor activities.

May Weather in San Bartolo: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Bartolo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Bartolo, May typically has an average temperature of 18°C (64°F), with highs reaching up to 21°C (69°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec687069676462616059606265
Data source: Temperature data for San Bartolo 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 Bartolo

In San Bartolo in May, the precipitation amount is 16 mm (0.6 in) over a span of 4 days.

May Precipitation Trends in San Bartolo

The chart displays monthly precipitation patterns in San Bartolo, 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 Bartolo, May typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec312921131623221917131317
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Bartolo

In San Bartolo in May humidity is 83%. With an average temperature of 18°C (64°F), this humidity feels like a warm blanket enveloping you, making outdoor exploring somewhat sticky and requiring frequent hydration breaks.

May Average Humidity in San Bartolo

This chart illustrates the average monthly humidity levels in San Bartolo, 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 Bartolo is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%90%89%83%69%56%51%53%68%82%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Bartolo

In San Bartolo in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Bartolo.

Maximum UV Index Levels in San Bartolo for May

The chart shows the monthly maximum UV Index (UVI) for San Bartolo 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 Bartolo typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151414131110101113141514
Data source: San Bartolo 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 Bartolo Compares to Other Months

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

This table compares monthly weather conditions in San Bartolo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)31 mm (1.2 inches)89%extreme
February Weather21°C (70°F)29 mm (1.2 inches)89%extreme
March Weather21°C (70°F)21 mm (0.8 inches)90%extreme
April Weather19°C (67°F)13 mm (0.5 inches)89%extreme
May Weather18°C (64°F)16 mm (0.6 inches)83%extreme
June Weather17°C (62°F)23 mm (0.9 inches)69%very high
July Weather16°C (61°F)22 mm (0.9 inches)56%very high
August Weather15°C (60°F)19 mm (0.7 inches)50%extreme
September Weather15°C (60°F)17 mm (0.7 inches)53%extreme
October Weather16°C (61°F)13 mm (0.5 inches)68%extreme
November Weather17°C (62°F)13 mm (0.5 inches)81%extreme
December Weather18°C (65°F)17 mm (0.7 inches)87%extreme

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