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May Weather in San Isidro, Spain

Last updated: August 27, 2025

In San Isidro, Spain, the average temperature in May is a pleasant 19°C (66°F). Expect minimums of 15°C (59°F) and a comfortable maximum of 27°C (81°F). During this month, anticipate about 35 mm (1.4 in) of precipitation spread across 8 days, contributing to an average humidity of 82%.

May Temperature in San Isidro

In May in San Isidro, the average temperature is 19°C (66°F), with maximums reaching up to 27°C (81°F) and minimums dipping as low as 15°C (59°F). It's a pleasant time to visit, offering comfortable weather for exploring and outdoor activities.

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

The chart illustrates May temperature patterns in San Isidro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Isidro, May typically has an average temperature of 19°C (66°F), with highs reaching up to 27°C (81°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec626362636568717472716764
Data source: Temperature data for San Isidro 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 Isidro

In San Isidro in May, the precipitation amount is 35 mm (1.4 in) over the course of 8 days.

May Precipitation Trends in San Isidro

The chart displays monthly precipitation patterns in San Isidro, 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 Isidro, May typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec363843523514219223125
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Isidro

In San Isidro in May humidity is 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

May Average Humidity in San Isidro

This chart illustrates the average monthly humidity levels in San Isidro, 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 Isidro is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%76%81%83%82%85%89%90%88%85%80%74%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Isidro

In San Isidro 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 Isidro.

Maximum UV Index Levels in San Isidro for May

The chart shows the monthly maximum UV Index (UVI) for San Isidro 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 Isidro typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111212121111976
Data source: San Isidro 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 Isidro Compares to Other Months

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

This table compares monthly weather conditions in San Isidro, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)36 mm (1.4 inches)73%moderate
February Weather17°C (63°F)38 mm (1.5 inches)76%high
March Weather17°C (62°F)43 mm (1.7 inches)81%very high
April Weather17°C (63°F)52 mm (2.0 inches)83%extreme
May Weather19°C (66°F)35 mm (1.4 inches)82%extreme
June Weather20°C (68°F)14 mm (0.6 inches)85%extreme
July Weather22°C (72°F)2 mm (0.1 inches)89%extreme
August Weather23°C (74°F)1 mm (0.1 inches)90%extreme
September Weather22°C (72°F)9 mm (0.4 inches)88%extreme
October Weather22°C (71°F)22 mm (0.9 inches)85%very high
November Weather20°C (67°F)31 mm (1.2 inches)80%high
December Weather18°C (65°F)25 mm (1.0 inches)74%high

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