January Weather in Castillejar, Spain

Last updated: August 27, 2025

In January, the average temperature in Castillejar, Spain hovers around 4°C (40°F), making it a crisp time of year. Expect minimums to dip as low as -9°C (17°F) and maximums to reach up to 20°C (68°F). Precipitation averages 36 mm (1.4 in) over the course of about 5 days, while the air maintains a high average humidity of 76%.

January Temperature in Castillejar

In January in Castillejar, the average temperature is 4°C (40°F), with maximums reaching 20°C (68°F) and minimums plummeting to -9°C (17°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

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

The chart illustrates January temperature patterns in Castillejar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castillejar, January typically has an average temperature of 4°C (40°F), with highs reaching up to 20°C (68°F) and lows dropping to around -9°C (17°F).

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

January Precipitation in Castillejar

In Castillejar in January, the precipitation amount is 36 mm (1.4 in) over the course of 5 days.

January Precipitation Trends in Castillejar

The chart displays monthly precipitation patterns in Castillejar, 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 Castillejar, January typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 5 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 Castillejar

In Castillejar in January humidity is 76%. With an average temperature of 4°C (40°F), this humidity feels like a chilly embrace, making travel feel damp and slightly clammy, as the cool air clings to your skin, requiring extra layers to stay comfortable while experiencing the sights.

January Average Humidity in Castillejar

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

In Castillejar 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 Castillejar, you can check the information here.

Maximum UV Index Levels in Castillejar for January

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

Data source: Castillejar 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 Castillejar Compares to Other Months

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

This table compares monthly weather conditions in Castillejar, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	36 mm (1.4 inches)	76%	moderate
February Weather	7°C (45°F)	26 mm (1.0 inches)	71%	moderate
March Weather	9°C (48°F)	73 mm (2.9 inches)	66%	high
April Weather	11°C (53°F)	57 mm (2.2 inches)	58%	very high
May Weather	17°C (63°F)	31 mm (1.2 inches)	55%	extreme
June Weather	21°C (71°F)	19 mm (0.8 inches)	50%	extreme
July Weather	25°C (78°F)	7 mm (0.3 inches)	55%	extreme
August Weather	25°C (78°F)	15 mm (0.6 inches)	54%	very high
September Weather	20°C (69°F)	24 mm (0.9 inches)	61%	very high
October Weather	15°C (59°F)	26 mm (1.0 inches)	70%	high
November Weather	9°C (48°F)	56 mm (2.2 inches)	76%	moderate
December Weather	6°C (44°F)	45 mm (1.8 inches)	79%	moderate