January Weather in Castaras, Spain

Last updated: August 27, 2025

In Castaras, Spain, the average temperature in January hovers around 5°C (41°F), with minimums dipping to -8°C (17°F) and maximums reaching 20°C (68°F). Expect approximately 42 mm (1.7 in) of precipitation over about 6 days, contributing to an average humidity of 76%. Stay prepared for a mix of chilly and mild days!

January Temperature in Castaras

In January in Castaras, the average temperature is 5°C (41°F). Maximum temperatures can reach 20°C (68°F), while minimums can drop as low as -8°C (17°F). Be sure to pack layers and prepare for variable weather during your travels!

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

The chart illustrates January temperature patterns in Castaras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castaras, January typically has an average temperature of 5°C (41°F), with highs reaching up to 20°C (68°F) and lows dropping to around -8°C (17°F).

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

January Precipitation in Castaras

In Castaras in January, the total precipitation amount is 42 mm (1.7 in) spread over 6 days.

January Precipitation Trends in Castaras

The chart displays monthly precipitation patterns in Castaras, 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 Castaras, January typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 6 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Castaras

In Castaras in January humidity is 76%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and prompting travelers to seek shelter or warm layers.

January Average Humidity in Castaras

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

In Castaras 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 Castaras, you can check the information here.

Maximum UV Index Levels in Castaras for January

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

Data source: Castaras 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 Castaras Compares to Other Months

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

This table compares monthly weather conditions in Castaras, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	42 mm (1.7 inches)	76%	moderate
February Weather	7°C (46°F)	37 mm (1.4 inches)	71%	moderate
March Weather	8°C (47°F)	103 mm (4.1 inches)	66%	very high
April Weather	10°C (51°F)	97 mm (3.8 inches)	58%	very high
May Weather	16°C (60°F)	59 mm (2.3 inches)	55%	extreme
June Weather	20°C (68°F)	17 mm (0.7 inches)	50%	extreme
July Weather	24°C (76°F)	8 mm (0.3 inches)	55%	extreme
August Weather	24°C (75°F)	30 mm (1.2 inches)	54%	extreme
September Weather	19°C (66°F)	69 mm (2.7 inches)	61%	very high
October Weather	14°C (58°F)	59 mm (2.3 inches)	70%	high
November Weather	8°C (47°F)	65 mm (2.6 inches)	76%	moderate
December Weather	7°C (44°F)	44 mm (1.7 inches)	79%	moderate