January Weather in Oleiros, Portugal

Last updated: August 27, 2025

In January, the average temperature in Oleiros, Portugal hovers around 7°C (45°F), making it a crisp time of year. Expect minimum lows of -4°C (25°F) and comfortable maximums reaching 18°C (64°F). With an average precipitation of 63 mm (2.5 in) spread over 7 days, don't forget your umbrella! The average humidity is a humid 85%, adding to the overall cool atmosphere.

January Temperature in Oleiros

In January in Oleiros, the average temperature is 7°C (45°F). Maximum temperatures can reach 18°C (64°F), while minimums can drop as low as -4°C (25°F). Be prepared for a range of temperatures if you plan to visit during this time.

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

The chart illustrates January temperature patterns in Oleiros, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oleiros, January typically has an average temperature of 7°C (45°F), with highs reaching up to 18°C (64°F) and lows dropping to around -4°C (25°F).

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

January Precipitation in Oleiros

In Oleiros in January, the precipitation amount is 63 mm (2.5 in) over a span of 7 days.

January Precipitation Trends in Oleiros

The chart displays monthly precipitation patterns in Oleiros, 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 Oleiros, January typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 7 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 Oleiros

In Oleiros in January, humidity is 85%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.

January Average Humidity in Oleiros

This chart illustrates the average monthly humidity levels in Oleiros, 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 Oleiros is approximately 85%, 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 Oleiros

In Oleiros 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 Oleiros, you can check the information here.

Maximum UV Index Levels in Oleiros for January

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

Data source: Oleiros 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 Oleiros Compares to Other Months

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

This table compares monthly weather conditions in Oleiros, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	63 mm (2.5 inches)	85%	moderate
February Weather	9°C (49°F)	99 mm (3.9 inches)	75%	moderate
March Weather	10°C (51°F)	141 mm (5.5 inches)	72%	high
April Weather	12°C (55°F)	140 mm (5.5 inches)	70%	very high
May Weather	16°C (61°F)	68 mm (2.7 inches)	70%	very high
June Weather	18°C (65°F)	32 mm (1.2 inches)	63%	extreme
July Weather	21°C (70°F)	12 mm (0.5 inches)	60%	very high
August Weather	21°C (70°F)	15 mm (0.6 inches)	60%	very high
September Weather	19°C (67°F)	40 mm (1.6 inches)	67%	very high
October Weather	16°C (60°F)	97 mm (3.8 inches)	74%	high
November Weather	11°C (51°F)	139 mm (5.5 inches)	83%	moderate
December Weather	9°C (48°F)	128 mm (5.0 inches)	85%	moderate