May Weather in Montalvinho, Portugal

Last updated: August 27, 2025

In May, the average temperature in Montalvinho, Portugal hovers around 19°C (66°F). Expect a minimum of 5°C (42°F) and a maximum of 35°C (96°F), making for some delightful, albeit variable, days. With an average precipitation of 46 mm (1.8 in) spread over about 6 days, and humidity levels at a comfortable 70%, it’s a month that invites both adventure and cozy indoor retreats.

May Temperature in Montalvinho

In May, in Montalvinho, the average temperature is 19°C (66°F). Maximum temperatures can reach 35°C (96°F), while minimums can drop as low as 5°C (42°F). Be prepared for a range of temperatures during your travels, so pack accordingly for both warm and cool conditions.

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

The chart illustrates May temperature patterns in Montalvinho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montalvinho, May typically has an average temperature of 19°C (66°F), with highs reaching up to 35°C (96°F) and lows dropping to around 5°C (42°F).

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

May Precipitation in Montalvinho

In Montalvinho in May, the precipitation amount is 46 mm (1.8 in) over a span of 6 days.

May Precipitation Trends in Montalvinho

The chart displays monthly precipitation patterns in Montalvinho, 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 Montalvinho, May typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Montalvinho

In Montalvinho in May humidity is 70%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket enveloping you, making travel a bit sticky and prompting frequent breaks for water as you explore the sights.

May Average Humidity in Montalvinho

This chart illustrates the average monthly humidity levels in Montalvinho, 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 Montalvinho 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 Montalvinho

In Montalvinho 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 Montalvinho.

Maximum UV Index Levels in Montalvinho for May

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

Data source: Montalvinho 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 Montalvinho Compares to Other Months

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

This table compares monthly weather conditions in Montalvinho, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	42 mm (1.7 inches)	85%	moderate
February Weather	12°C (53°F)	61 mm (2.4 inches)	75%	moderate
March Weather	13°C (55°F)	94 mm (3.7 inches)	72%	high
April Weather	15°C (59°F)	94 mm (3.7 inches)	70%	very high
May Weather	19°C (66°F)	46 mm (1.8 inches)	70%	very high
June Weather	20°C (69°F)	19 mm (0.7 inches)	63%	extreme
July Weather	23°C (73°F)	5 mm (0.2 inches)	60%	very high
August Weather	23°C (74°F)	7 mm (0.3 inches)	60%	very high
September Weather	22°C (71°F)	30 mm (1.2 inches)	67%	very high
October Weather	18°C (65°F)	63 mm (2.5 inches)	74%	high
November Weather	13°C (55°F)	94 mm (3.7 inches)	83%	moderate
December Weather	11°C (52°F)	68 mm (2.7 inches)	85%	moderate