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May Weather in Montemor-o-Velho, Portugal

Last updated: August 27, 2025

In Montemor-o-Velho, Portugal, the average temperature in May is a pleasant 17°C (63°F). Visitors can expect a range from a cool minimum of 8°C (46°F) to a warm maximum of 31°C (87°F). The month sees an average precipitation amount of 58 mm (2.3 in) spread over 7 days, contributing to an average humidity of 78%. Perfect weather for both adventures and relaxation!

May Temperature in Montemor-o-Velho

In May in Montemor-o-Velho, the average temperature is 17°C (63°F). Maximums can reach 31°C (87°F), and minimums can be as low as 8°C (46°F). This climate makes Montemor-o-Velho a great destination for travelers seeking pleasant and varied weather.

May Weather in Montemor-o-Velho: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Montemor-o-Velho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montemor-o-Velho, May typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (87°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec505455586365686867635654
Data source: Temperature data for Montemor-o-Velho 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 Montemor-o-Velho

In Montemor-o-Velho in May, the precipitation amount is 58 mm (2.3 in) over the course of 7 days.

May Precipitation Trends in Montemor-o-Velho

The chart displays monthly precipitation patterns in Montemor-o-Velho, 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 Montemor-o-Velho, May typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec63851031045829993090122110
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Montemor-o-Velho

In Montemor-o-Velho in May, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

May Average Humidity in Montemor-o-Velho

This chart illustrates the average monthly humidity levels in Montemor-o-Velho, 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 Montemor-o-Velho is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%81%78%79%78%71%63%64%71%79%86%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Montemor-o-Velho

In Montemor-o-Velho in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Montemor-o-Velho.

Maximum UV Index Levels in Montemor-o-Velho for May

The chart shows the monthly maximum UV Index (UVI) for Montemor-o-Velho 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 Montemor-o-Velho typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Montemor-o-Velho 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 Montemor-o-Velho Compares to Other Months

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

This table compares monthly weather conditions in Montemor-o-Velho, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)63 mm (2.5 inches)87%moderate
February Weather12°C (54°F)85 mm (3.3 inches)81%moderate
March Weather13°C (55°F)103 mm (4.1 inches)78%high
April Weather14°C (58°F)104 mm (4.1 inches)79%very high
May Weather17°C (63°F)58 mm (2.3 inches)78%very high
June Weather18°C (65°F)29 mm (1.1 inches)71%very high
July Weather20°C (68°F)9 mm (0.4 inches)63%very high
August Weather20°C (68°F)9 mm (0.3 inches)64%very high
September Weather20°C (67°F)30 mm (1.2 inches)71%very high
October Weather17°C (63°F)90 mm (3.5 inches)79%high
November Weather14°C (57°F)122 mm (4.8 inches)86%moderate
December Weather12°C (54°F)110 mm (4.3 inches)87%low

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