January Weather in Raron, Switzerland

Last updated: August 27, 2025

In January, the average temperature in Raron, Switzerland hovers around -10°C (15°F), with extremes ranging from a chilling -27°C (-17°F) to a milder 5°C (41°F). Expect 125 mm (4.9 in) of precipitation spread over approximately 11 days, contributing to an average humidity level of 92%. Stay warm and prepared for the wintry conditions!

January Temperature in Raron

In January in Raron, the average temperature is -10°C (15°F), with maximums reaching up to 5°C (41°F) and minimums plummeting as low as -27°C (-17°F). Travelers should be prepared for extremely cold weather and dress accordingly to fully enjoy their visit.

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

The chart illustrates January temperature patterns in Raron, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Raron, January typically has an average temperature of -10°C (15°F), with highs reaching up to 5°C (41°F) and lows dropping to around -27°C (-17°F).

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

January Precipitation in Raron

In Raron in January, the precipitation amount is 125 mm (4.9 in) over the course of 11 days.

January Precipitation Trends in Raron

The chart displays monthly precipitation patterns in Raron, 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 Raron, January typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 11 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 Raron

In Raron in January humidity is 92%. With an average temperature of -10°C (15°F), this humidity feels like stepping into an icy fog where each breath brings a chilling bite and every exposed surface seems to cling with moisture, making travel both disorienting and uncomfortable.

January Average Humidity in Raron

This chart illustrates the average monthly humidity levels in Raron, 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 Raron is approximately 92%, 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 Raron

In Raron 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 Raron, you can check the information here.

Maximum UV Index Levels in Raron for January

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

Data source: Raron 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 Raron Compares to Other Months

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

This table compares monthly weather conditions in Raron, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (15°F)	125 mm (4.9 inches)	92%	moderate
February Weather	-6°C (22°F)	82 mm (3.2 inches)	89%	moderate
March Weather	-3°C (27°F)	109 mm (4.3 inches)	87%	high
April Weather	1°C (34°F)	89 mm (3.5 inches)	84%	very high
May Weather	5°C (41°F)	149 mm (5.9 inches)	80%	very high
June Weather	11°C (51°F)	130 mm (5.1 inches)	82%	extreme
July Weather	13°C (55°F)	108 mm (4.2 inches)	83%	very high
August Weather	12°C (54°F)	119 mm (4.7 inches)	80%	very high
September Weather	8°C (47°F)	89 mm (3.5 inches)	83%	high
October Weather	4°C (39°F)	148 mm (5.8 inches)	90%	high
November Weather	-3°C (27°F)	109 mm (4.3 inches)	88%	moderate
December Weather	-8°C (17°F)	170 mm (6.7 inches)	90%	low