January Weather in Relva, Portugal

Last updated: August 27, 2025

In Relva, Portugal, the average temperature in January hovers around 16°C (61°F), providing a mild climate perfect for exploring. Expect the temperature to range from a cool 12°C (53°F) to a pleasant 19°C (66°F). However, be prepared for the occasional shower, as 77 mm (3.0 in) of precipitation may fall over 14 days during this month. With an average humidity of 82%, you'll feel the fresh, crisp air that defines this beautiful locale.

January Temperature in Relva

In January in Relva, the average temperature is 16°C (61°F), with maximums reaching 19°C (66°F) and minimums dropping to as low as 12°C (53°F). It's advisable to pack layers for your travels, as the weather can vary throughout the day.

January Weather in Relva: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Relva, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Relva, January typically has an average temperature of 16°C (61°F), with highs reaching up to 19°C (66°F) and lows dropping to around 12°C (53°F).

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

January Precipitation in Relva

In Relva in January, the precipitation amount is 77 mm (3.0 in) over the course of 14 days.

January Precipitation Trends in Relva

The chart displays monthly precipitation patterns in Relva, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Relva, January typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 14 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Relva

In Relva in January humidity is 82%. With an average temperature of 16°C (61°F), this humidity feels like a heavy blanket enveloping you, making travel feel a bit sluggish and requiring frequent breaks to hydrate and cool down.

January Average Humidity in Relva

This chart illustrates the average monthly humidity levels in Relva, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Relva is approximately 82%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Relva

In Relva in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Relva, you can check the information here.

Maximum UV Index Levels in Relva for January

The chart shows the monthly maximum UV Index (UVI) for Relva in January, 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 January, the maximum UV index in Relva typically reaches 3, which falls under the moderate exposure category.

Data source: Relva January 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 January Weather in Relva Compares to Other Months

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

This table compares monthly weather conditions in Relva, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (61°F)	77 mm (3.0 inches)	82%	moderate
February Weather	15°C (59°F)	111 mm (4.4 inches)	80%	moderate
March Weather	15°C (59°F)	66 mm (2.6 inches)	82%	high
April Weather	15°C (60°F)	88 mm (3.5 inches)	83%	very high
May Weather	17°C (62°F)	71 mm (2.8 inches)	81%	very high
June Weather	19°C (66°F)	39 mm (1.5 inches)	82%	extreme
July Weather	21°C (69°F)	18 mm (0.7 inches)	83%	very high
August Weather	22°C (72°F)	49 mm (1.9 inches)	81%	very high
September Weather	22°C (71°F)	66 mm (2.6 inches)	81%	very high
October Weather	20°C (69°F)	123 mm (4.8 inches)	79%	high
November Weather	18°C (65°F)	105 mm (4.2 inches)	79%	moderate
December Weather	17°C (63°F)	141 mm (5.6 inches)	84%	moderate