May Weather in Arrentela, Portugal

Last updated: August 27, 2025

In Arrentela, Portugal, the average temperature for May hovers around 18°C (64°F), offering a pleasant climate. Expect a minimum of 10°C (50°F) and a maximum of 31°C (87°F) throughout the month. While you enjoy the mild weather, keep in mind that there’s an average precipitation of 31 mm (1.2 in) over about 4 days, and the average humidity sits at a comfortable 70%. Perfect for outdoor adventures!

May Temperature in Arrentela

In May in Arrentela, the average temperature is 18°C (64°F). The maximum can reach 31°C (87°F) and the minimum can be as low as 10°C (50°F). This makes it a pleasant time to visit, with comfortable days and cooler evenings perfect for exploring.

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

The chart illustrates May temperature patterns in Arrentela, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arrentela, May typically has an average temperature of 18°C (64°F), with highs reaching up to 31°C (87°F) and lows dropping to around 10°C (50°F).

Data source: Temperature data for Arrentela generated using information from the Copernicus Climate Change Service.

May Precipitation in Arrentela

In Arrentela in May, the total precipitation amount is 31 mm (1.2 in) over a span of 4 days.

May Precipitation Trends in Arrentela

The chart displays monthly precipitation patterns in Arrentela, 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 Arrentela, May typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Arrentela

In Arrentela in May humidity is 70%. With an average temperature of 18°C (64°F), this humidity feels like a sticky embrace, making outdoor excursions a bit more cumbersome and requiring frequent breaks to stay refreshed and hydrated.

May Average Humidity in Arrentela

This chart illustrates the average monthly humidity levels in Arrentela, 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 Arrentela is approximately 70%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Arrentela

In Arrentela 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 Arrentela.

Maximum UV Index Levels in Arrentela for May

The chart shows the monthly maximum UV Index (UVI) for Arrentela 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 Arrentela typically reaches 10, which falls under the very high exposure category.

Data source: Arrentela 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 Arrentela Compares to Other Months

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

This table compares monthly weather conditions in Arrentela, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	34 mm (1.3 inches)	85%	moderate
February Weather	13°C (56°F)	53 mm (2.1 inches)	75%	moderate
March Weather	14°C (58°F)	66 mm (2.6 inches)	72%	high
April Weather	15°C (60°F)	63 mm (2.5 inches)	70%	very high
May Weather	18°C (64°F)	31 mm (1.2 inches)	70%	very high
June Weather	19°C (67°F)	8 mm (0.3 inches)	63%	extreme
July Weather	21°C (70°F)	4 mm (0.2 inches)	60%	very high
August Weather	21°C (71°F)	3 mm (0.1 inches)	60%	very high
September Weather	21°C (69°F)	18 mm (0.7 inches)	67%	very high
October Weather	19°C (66°F)	39 mm (1.5 inches)	74%	high
November Weather	15°C (60°F)	69 mm (2.7 inches)	83%	moderate
December Weather	14°C (57°F)	54 mm (2.1 inches)	85%	moderate