March Weather in Rio Maior, Portugal

Last updated: August 27, 2025

In Rio Maior, Portugal, the average temperature in March is a comfortable 13°C (56°F). Expect minimums dipping to 5°C (41°F) and the warmth peaking at 27°C (82°F). During this month, precipitation averages 74 mm (2.9 in) over 9 days, contributing to a relatively high average humidity of 72%.

March Temperature in Rio Maior

In March in Rio Maior, the average temperature is 13°C (56°F). Maximum temperatures can reach 27°C (82°F), while minimums can drop as low as 5°C (41°F). This variation makes it essential to pack layers for your travels.

March Weather in Rio Maior: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Rio Maior, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Maior, March typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (82°F) and lows dropping to around 5°C (41°F).

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

March Precipitation in Rio Maior

In Rio Maior in March, the precipitation amount is 74 mm (2.9 in), which occurs over a span of 9 days.

March Precipitation Trends in Rio Maior

The chart displays monthly precipitation patterns in Rio Maior, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Rio Maior, March typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Rio Maior

In Rio Maior in March, humidity is 72%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and reminding travelers to stay hydrated and seek shade whenever possible.

March Average Humidity in Rio Maior

This chart illustrates the average monthly humidity levels in Rio Maior, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Rio Maior is approximately 72%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Rio Maior

In Rio Maior in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Rio Maior, you can refer to this Hourly UV Index in Rio Maior.

Maximum UV Index Levels in Rio Maior for March

The chart shows the monthly maximum UV Index (UVI) for Rio Maior in March, 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 March, the maximum UV index in Rio Maior typically reaches 6, which falls under the high exposure category.

Data source: Rio Maior March 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 March Weather in Rio Maior Compares to Other Months

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

This table compares monthly weather conditions in Rio Maior, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (51°F)	41 mm (1.6 inches)	85%	moderate
February Weather	12°C (54°F)	53 mm (2.1 inches)	75%	moderate
March Weather	13°C (56°F)	74 mm (2.9 inches)	72%	high
April Weather	15°C (59°F)	82 mm (3.2 inches)	70%	very high
May Weather	18°C (64°F)	39 mm (1.5 inches)	70%	very high
June Weather	19°C (67°F)	16 mm (0.6 inches)	63%	extreme
July Weather	21°C (70°F)	6 mm (0.2 inches)	60%	very high
August Weather	21°C (70°F)	6 mm (0.2 inches)	60%	very high
September Weather	21°C (69°F)	27 mm (1.1 inches)	67%	very high
October Weather	18°C (65°F)	58 mm (2.3 inches)	74%	high
November Weather	14°C (57°F)	88 mm (3.5 inches)	83%	moderate
December Weather	12°C (54°F)	64 mm (2.5 inches)	85%	moderate