January Weather in Onis, Spain

Last updated: August 27, 2025

In January, the average temperature in Onis, Spain hovers around 4°C (40°F), with a minimum of -8°C (19°F) and a maximum reaching 16°C (61°F). Expect frequent rainy days, as 114 mm (4.5 in) of precipitation can fall over 13 days. With an average humidity level of 87%, be prepared for a damp and chilly experience!

January Temperature in Onis

In January in Onis, the average temperature is 4°C (40°F). The maximum can reach 16°C (61°F), while the minimum can drop as low as -8°C (19°F). It’s advisable to pack warm clothing if you plan to travel during this time.

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

The chart illustrates January temperature patterns in Onis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onis, January typically has an average temperature of 4°C (40°F), with highs reaching up to 16°C (61°F) and lows dropping to around -8°C (19°F).

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

January Precipitation in Onis

In Onis in January, the total precipitation amount is 114 mm (4.5 in), distributed over the course of 13 days.

January Precipitation Trends in Onis

The chart displays monthly precipitation patterns in Onis, 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 Onis, January typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 13 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 Onis

In Onis in January humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

January Average Humidity in Onis

This chart illustrates the average monthly humidity levels in Onis, 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 Onis is approximately 87%, 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 Onis

In Onis in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Onis, you can visit Hourly UV Index in Onis.

Maximum UV Index Levels in Onis for January

The chart shows the monthly maximum UV Index (UVI) for Onis 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 Onis typically reaches 2, which falls under the low exposure category.

Data source: Onis 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 Onis Compares to Other Months

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

This table compares monthly weather conditions in Onis, 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)	114 mm (4.5 inches)	87%	low
February Weather	6°C (43°F)	114 mm (4.5 inches)	85%	moderate
March Weather	7°C (44°F)	126 mm (5.0 inches)	83%	high
April Weather	9°C (48°F)	128 mm (5.0 inches)	83%	very high
May Weather	12°C (53°F)	133 mm (5.2 inches)	84%	very high
June Weather	14°C (58°F)	160 mm (6.3 inches)	84%	extreme
July Weather	17°C (62°F)	117 mm (4.6 inches)	86%	very high
August Weather	17°C (62°F)	105 mm (4.1 inches)	78%	very high
September Weather	15°C (59°F)	109 mm (4.3 inches)	77%	very high
October Weather	12°C (53°F)	119 mm (4.7 inches)	82%	moderate
November Weather	7°C (45°F)	179 mm (7.0 inches)	86%	moderate
December Weather	6°C (43°F)	175 mm (6.9 inches)	87%	low