May Weather in Samil, Portugal

Last updated: August 27, 2025

In May, the typical average temperature in Samil, Portugal is a comfortable 15°C (60°F). Expect temperatures to range from a chilly 0°C (33°F) to a warm 30°C (87°F). During this month, you'll experience an average precipitation of 51 mm (2.0 in) spread over 10 days, contributing to a humidity level of around 76%.

May Temperature in Samil

In May in Samil, the average temperature is 15°C (60°F). The maximum can reach 30°C (87°F) and the minimum can be as low as 0°C (33°F). This temperature variability makes it essential for travelers to pack layers and be prepared for both warm and cool conditions.

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

The chart illustrates May temperature patterns in Samil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Samil, May typically has an average temperature of 15°C (60°F), with highs reaching up to 30°C (87°F) and lows dropping to around 0°C (33°F).

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

May Precipitation in Samil

In Samil in May, the total precipitation amount is 51 mm (2.0 in) spread over a period of 10 days.

May Precipitation Trends in Samil

The chart displays monthly precipitation patterns in Samil, 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 Samil, May typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 10 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 Samil

In Samil in May humidity is 76%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities a bit more challenging and urging you to stay hydrated while exploring the area.

May Average Humidity in Samil

This chart illustrates the average monthly humidity levels in Samil, 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 Samil is approximately 76%, 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 Samil

In Samil 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 Samil.

Maximum UV Index Levels in Samil for May

The chart shows the monthly maximum UV Index (UVI) for Samil 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 Samil typically reaches 9, which falls under the very high exposure category.

Data source: Samil 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 Samil Compares to Other Months

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

This table compares monthly weather conditions in Samil, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	54 mm (2.1 inches)	91%	low
February Weather	7°C (45°F)	95 mm (3.7 inches)	85%	moderate
March Weather	8°C (47°F)	99 mm (3.9 inches)	79%	high
April Weather	11°C (52°F)	92 mm (3.6 inches)	77%	very high
May Weather	15°C (60°F)	51 mm (2.0 inches)	76%	very high
June Weather	18°C (65°F)	48 mm (1.9 inches)	64%	extreme
July Weather	22°C (71°F)	18 mm (0.7 inches)	54%	very high
August Weather	21°C (71°F)	16 mm (0.6 inches)	52%	very high
September Weather	18°C (65°F)	45 mm (1.8 inches)	63%	very high
October Weather	14°C (57°F)	74 mm (2.9 inches)	78%	high
November Weather	8°C (47°F)	110 mm (4.3 inches)	90%	moderate
December Weather	6°C (43°F)	127 mm (5.0 inches)	91%	low