January Weather in Castellar de Santiago, Spain

Last updated: August 27, 2025

In Castellar de Santiago, Spain, the average temperature in January hovers around 6°C (43°F). Expect temperatures to fluctuate between a minimum of -5°C (23°F) and a maximum of 22°C (71°F). Prepare for around 34 mm (1.3 in) of precipitation spread over 7 days, coupled with a high average humidity of 85%, creating a distinctly damp atmosphere.

January Temperature in Castellar de Santiago

In January in Castellar de Santiago, the average temperature is 6°C (43°F). Maximum temperatures can reach up to 22°C (71°F), while minimums can dip as low as -5°C (23°F). Be sure to pack layers to accommodate for the wide temperature range when traveling during this time.

January Weather in Castellar de Santiago: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Castellar de Santiago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castellar de Santiago, January typically has an average temperature of 6°C (43°F), with highs reaching up to 22°C (71°F) and lows dropping to around -5°C (23°F).

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

January Precipitation in Castellar de Santiago

In Castellar de Santiago in January, the total precipitation amount is 34 mm (1.3 in) over the course of 7 days.

January Precipitation Trends in Castellar de Santiago

The chart displays monthly precipitation patterns in Castellar de Santiago, 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 Castellar de Santiago, January typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 7 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 Castellar de Santiago

In Castellar de Santiago in January, humidity is 85%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making travel feel more uncomfortable and limiting your enjoyment of the sights as you navigate the wet, brisk air.

January Average Humidity in Castellar de Santiago

This chart illustrates the average monthly humidity levels in Castellar de Santiago, 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 Castellar de Santiago 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 Castellar de Santiago

In Castellar de Santiago 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 Castellar de Santiago, you can check the information here.

Maximum UV Index Levels in Castellar de Santiago for January

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

Data source: Castellar de Santiago 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 Castellar de Santiago Compares to Other Months

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

This table compares monthly weather conditions in Castellar de Santiago, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	34 mm (1.3 inches)	85%	moderate
February Weather	9°C (49°F)	35 mm (1.4 inches)	78%	moderate
March Weather	11°C (52°F)	76 mm (3.0 inches)	66%	high
April Weather	13°C (56°F)	92 mm (3.6 inches)	60%	very high
May Weather	19°C (66°F)	36 mm (1.4 inches)	56%	very high
June Weather	24°C (75°F)	16 mm (0.6 inches)	44%	extreme
July Weather	28°C (82°F)	8 mm (0.3 inches)	44%	extreme
August Weather	28°C (83°F)	16 mm (0.6 inches)	42%	very high
September Weather	23°C (73°F)	28 mm (1.1 inches)	53%	very high
October Weather	17°C (63°F)	41 mm (1.6 inches)	70%	high
November Weather	10°C (51°F)	70 mm (2.7 inches)	83%	moderate
December Weather	8°C (46°F)	56 mm (2.2 inches)	86%	moderate