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May Weather in Sao Juliao, Portugal

Last updated: August 27, 2025

In May, the average temperature in Sao Juliao, Portugal is a pleasant 19°C (66°F). Visitors can expect temperature variations, with a minimum of 5°C (41°F) and a maximum reaching 34°C (94°F). The region typically experiences 41 mm (1.6 in) of precipitation over about 6 days, contributing to an average humidity level of 62%.

May Temperature in Sao Juliao

In May in Sao Juliao, the average temperature is 19°C (66°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as 5°C (41°F). Be prepared for a diverse range of temperatures, making it essential to pack accordingly for your travels.

May Weather in Sao Juliao: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Sao Juliao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Juliao, May typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec465154576671777873645450
Data source: Temperature data for Sao Juliao 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 Sao Juliao

In Sao Juliao in May, the precipitation amount is 41 mm (1.6 in) over the course of 6 days.

May Precipitation Trends in Sao Juliao

The chart displays monthly precipitation patterns in Sao Juliao, 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 Sao Juliao, May typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec3247878141134731527269
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sao Juliao

In Sao Juliao in May, humidity is 62%. With an average temperature of 19°C (66°F), this humidity feels like a balmy embrace, making travel pleasant, yet slightly muggy, urging you to stay hydrated and seek shade during midday excursions.

May Average Humidity in Sao Juliao

This chart illustrates the average monthly humidity levels in Sao Juliao, 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 Sao Juliao is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%76%68%64%62%47%46%42%54%69%85%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sao Juliao

In Sao Juliao 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 Sao Juliao.

Maximum UV Index Levels in Sao Juliao for May

The chart shows the monthly maximum UV Index (UVI) for Sao Juliao 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 Sao Juliao typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3469101110108643
Data source: Sao Juliao 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 Sao Juliao Compares to Other Months

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

This table compares monthly weather conditions in Sao Juliao, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)32 mm (1.3 inches)87%moderate
February Weather11°C (51°F)47 mm (1.9 inches)76%moderate
March Weather12°C (54°F)87 mm (3.4 inches)68%high
April Weather14°C (58°F)81 mm (3.2 inches)64%very high
May Weather19°C (66°F)41 mm (1.6 inches)62%very high
June Weather22°C (71°F)13 mm (0.5 inches)47%extreme
July Weather25°C (77°F)4 mm (0.2 inches)46%very high
August Weather25°C (78°F)7 mm (0.3 inches)42%very high
September Weather23°C (73°F)31 mm (1.2 inches)53%very high
October Weather18°C (65°F)51 mm (2.0 inches)69%high
November Weather12°C (54°F)72 mm (2.9 inches)85%moderate
December Weather10°C (50°F)69 mm (2.7 inches)87%moderate

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