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May Weather in Serra de El-Rei, Portugal

Last updated: August 27, 2025

In May, the average temperature in Serra de El-Rei, Portugal is a comfortable 17°C (63°F). Expect minimum temperatures around 10°C (49°F) and delightful highs reaching up to 31°C (89°F). You might see some rain, with an average precipitation of 39 mm (1.5 in) spread over 5 days. Don't forget, the average humidity is around 70%, adding to the overall experience of the season!

May Temperature in Serra de El-Rei

In May in Serra de El-Rei, the average temperature is 17°C (63°F), with maximums reaching 31°C (89°F) and minimums dropping as low as 10°C (49°F). This climate makes it a pleasant time to explore Serra de El-Rei, so pack accordingly for both warm days and cooler evenings.

May Weather in Serra de El-Rei: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Serra de El-Rei, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Serra de El-Rei, May typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (89°F) and lows dropping to around 10°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec525556586264676867645855
Data source: Temperature data for Serra de El-Rei 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 Serra de El-Rei

In Serra de El-Rei in May, the precipitation amount is 39 mm (1.5 in) spread over a duration of 5 days.

May Precipitation Trends in Serra de El-Rei

The chart displays monthly precipitation patterns in Serra de El-Rei, 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 Serra de El-Rei, May typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec4554707939178627639071
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Serra de El-Rei

In Serra de El-Rei in May humidity is 70%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making travel both refreshing and slightly sticky, as you navigate the air thick with moisture.

May Average Humidity in Serra de El-Rei

This chart illustrates the average monthly humidity levels in Serra de El-Rei, 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 Serra de El-Rei is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Serra de El-Rei

In Serra de El-Rei 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 Serra de El-Rei.

Maximum UV Index Levels in Serra de El-Rei for May

The chart shows the monthly maximum UV Index (UVI) for Serra de El-Rei 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 Serra de El-Rei typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Serra de El-Rei 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 Serra de El-Rei Compares to Other Months

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

This table compares monthly weather conditions in Serra de El-Rei, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (53°F)45 mm (1.8 inches)85%moderate
February Weather13°C (55°F)54 mm (2.1 inches)75%moderate
March Weather13°C (56°F)69 mm (2.7 inches)72%high
April Weather14°C (58°F)79 mm (3.1 inches)70%very high
May Weather17°C (63°F)39 mm (1.5 inches)70%very high
June Weather18°C (65°F)17 mm (0.7 inches)63%extreme
July Weather19°C (67°F)8 mm (0.3 inches)60%very high
August Weather20°C (68°F)6 mm (0.2 inches)60%very high
September Weather19°C (67°F)27 mm (1.1 inches)67%very high
October Weather18°C (64°F)63 mm (2.5 inches)74%high
November Weather14°C (58°F)90 mm (3.6 inches)83%moderate
December Weather13°C (55°F)71 mm (2.8 inches)85%moderate

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