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May Weather in Portillo, Spain

Last updated: August 27, 2025

In May, the average temperature in Portillo, Spain is a comfortable 16°C (61°F), with minimums dipping as low as 0°C (33°F) and a maximum reach of 33°C (91°F). Expect about 43 mm (1.7 in) of precipitation over 9 days, accompanied by average humidity levels of 71%. Perfect for enjoying the unique climate of this vibrant destination!

May Temperature in Portillo

In May in Portillo, the average temperature is 16°C (61°F). Maximums can reach 33°C (91°F), while minimums can drop to as low as 0°C (33°F). This climate makes Portillo an ideal destination for travelers seeking a mix of mild and warm weather.

May Weather in Portillo: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Portillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portillo, May typically has an average temperature of 16°C (61°F), with highs reaching up to 33°C (91°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec394448526168747466574642
Data source: Temperature data for Portillo 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 Portillo

In Portillo in May, the precipitation amount reaches 43 mm (1.7 in) over the course of 9 days.

May Precipitation Trends in Portillo

The chart displays monthly precipitation patterns in Portillo, 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 Portillo, May typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec364352774343161127546354
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Portillo

In Portillo in May humidity is 71%. With an average temperature of 16°C (61°F), this humidity feels like walking through a warm, damp blanket, making travel slightly uncomfortable but still enjoyable for those who appreciate mild weather.

May Average Humidity in Portillo

This chart illustrates the average monthly humidity levels in Portillo, 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 Portillo is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%86%79%74%71%63%59%58%66%77%87%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Portillo

In Portillo in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Portillo.

Maximum UV Index Levels in Portillo for May

The chart shows the monthly maximum UV Index (UVI) for Portillo 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 Portillo typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3478101111108642
Data source: Portillo 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 Portillo Compares to Other Months

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

This table compares monthly weather conditions in Portillo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)36 mm (1.4 inches)90%moderate
February Weather7°C (45°F)43 mm (1.7 inches)86%moderate
March Weather9°C (48°F)52 mm (2.0 inches)79%high
April Weather11°C (53°F)77 mm (3.0 inches)74%very high
May Weather16°C (61°F)43 mm (1.7 inches)71%very high
June Weather20°C (69°F)43 mm (1.7 inches)63%extreme
July Weather24°C (75°F)16 mm (0.6 inches)59%extreme
August Weather23°C (74°F)11 mm (0.4 inches)58%very high
September Weather19°C (66°F)27 mm (1.1 inches)65%very high
October Weather14°C (57°F)54 mm (2.1 inches)77%high
November Weather8°C (47°F)63 mm (2.5 inches)87%moderate
December Weather6°C (43°F)54 mm (2.1 inches)90%low

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