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May Weather in San Fernando, Peru

Last updated: August 27, 2025

In May, the average temperature in San Fernando, Peru hovers around 26°C (79°F), perfect for enjoying outdoor activities. However, be prepared for some variability, as temperatures can dip to a minimum of 17°C (63°F) and soar up to a maximum of 34°C (93°F). Rainfall is also a factor during this month, with an average precipitation of 184 mm (7.2 in) spread over 18 days. Don't forget, the average humidity reaches a high of 82%, making it feel quite warm and tropical!

May Temperature in San Fernando

In May in San Fernando, the average temperature is 26°C (79°F). Maximums can reach 34°C (93°F) and minimums can drop to 17°C (63°F). This pleasant weather makes San Fernando an ideal destination for travelers seeking outdoor activities and comfortable exploration.

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

The chart illustrates May temperature patterns in San Fernando, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Fernando, May typically has an average temperature of 26°C (79°F), with highs reaching up to 34°C (93°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec808079797978787981818080
Data source: Temperature data for San Fernando 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 Fernando

In San Fernando in May, the total precipitation amount is 184 mm (7.2 in), occurring over a span of 18 days.

May Precipitation Trends in San Fernando

The chart displays monthly precipitation patterns in San Fernando, 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 Fernando, May typically receives around 184 mm (7.2 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec2823584182731841079992145209293283
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Fernando

In San Fernando in May, humidity is 82%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket that envelops you, making outdoor activities feel more taxing and requiring frequent breaks to stay hydrated.

May Average Humidity in San Fernando

This chart illustrates the average monthly humidity levels in San Fernando, 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 Fernando is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%86%88%82%67%48%39%40%51%74%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Fernando

In San Fernando in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in San Fernando.

Maximum UV Index Levels in San Fernando for May

The chart shows the monthly maximum UV Index (UVI) for San Fernando 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 Fernando typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616151211111214151514
Data source: San Fernando 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 Fernando Compares to Other Months

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

This table compares monthly weather conditions in San Fernando, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)282 mm (11.1 inches)85%extreme
February Weather26°C (80°F)357 mm (14.1 inches)82%extreme
March Weather26°C (79°F)418 mm (16.5 inches)86%extreme
April Weather26°C (79°F)273 mm (10.7 inches)88%extreme
May Weather26°C (79°F)184 mm (7.2 inches)82%extreme
June Weather26°C (79°F)107 mm (4.2 inches)67%extreme
July Weather25°C (78°F)99 mm (3.9 inches)48%extreme
August Weather26°C (80°F)92 mm (3.6 inches)39%extreme
September Weather27°C (81°F)145 mm (5.7 inches)40%extreme
October Weather27°C (81°F)209 mm (8.2 inches)51%extreme
November Weather27°C (81°F)293 mm (11.5 inches)74%extreme
December Weather27°C (80°F)283 mm (11.1 inches)89%extreme

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