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May Weather in San Bartolome, Peru

Last updated: August 27, 2025

In May, the average temperature in San Bartolome, Peru is a mild 12°C (54°F), with daytime highs reaching up to 18°C (65°F) and nighttime lows dropping to around 3°C (38°F). Expect 143 mm (5.6 in) of precipitation over 19 days, contributing to an average humidity level of 83%. This blend of warmth and moisture creates a unique atmosphere, perfect for exploring the beauty of the season.

May Temperature in San Bartolome

In May, in San Bartolome, the average temperature is 12°C (54°F). Maximum temperatures can reach 18°C (65°F), while minimums can drop to as low as 3°C (38°F). This climate makes San Bartolome a comfortable destination for travelers seeking mild weather and outdoor activities during this time.

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

The chart illustrates May temperature patterns in San Bartolome, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Bartolome, May typically has an average temperature of 12°C (54°F), with highs reaching up to 18°C (65°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec545454545454555555545454
Data source: Temperature data for San Bartolome 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 Bartolome

In San Bartolome in May, the total precipitation amount is 143 mm (5.6 in) spread over 19 days.

May Precipitation Trends in San Bartolome

The chart displays monthly precipitation patterns in San Bartolome, 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 Bartolome, May typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec319326406251143553853171213176229
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Bartolome

In San Bartolome in May humidity is 83%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making outdoor exploration feel sticky and uncomfortable, which can dampen the excitement of traveling.

May Average Humidity in San Bartolome

This chart illustrates the average monthly humidity levels in San Bartolome, 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 Bartolome 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 Bartolome

In San Bartolome 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 Bartolome, you can check here.

Maximum UV Index Levels in San Bartolome for May

The chart shows the monthly maximum UV Index (UVI) for San Bartolome 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 Bartolome typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec181818171412131416171817
Data source: San Bartolome 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 Bartolome Compares to Other Months

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

This table compares monthly weather conditions in San Bartolome, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)319 mm (12.6 inches)89%extreme
February Weather12°C (54°F)326 mm (12.8 inches)89%extreme
March Weather12°C (54°F)406 mm (16.0 inches)90%extreme
April Weather12°C (54°F)251 mm (9.9 inches)89%extreme
May Weather12°C (54°F)143 mm (5.6 inches)83%extreme
June Weather12°C (55°F)55 mm (2.2 inches)69%extreme
July Weather13°C (55°F)38 mm (1.5 inches)56%extreme
August Weather13°C (55°F)53 mm (2.1 inches)50%extreme
September Weather13°C (55°F)170 mm (6.7 inches)53%extreme
October Weather12°C (55°F)213 mm (8.4 inches)68%extreme
November Weather12°C (55°F)176 mm (6.9 inches)81%extreme
December Weather12°C (55°F)229 mm (9.0 inches)87%extreme

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