January Weather in Sumiswald, Switzerland

Last updated: August 27, 2025

In January, the average temperature in Sumiswald, Switzerland hovers around 0°C (32°F), with a minimum dipping to -15°C (6°F) and a maximum reaching up to 15°C (59°F). Expect a total precipitation of 104 mm (4.1 in) spread over approximately 13 days, contributing to an average humidity level of 92%. This chilly climate calls for cozy attire and a readiness for wet weather!

January Temperature in Sumiswald

In January in Sumiswald, the average temperature is 0°C (32°F). Maximums can reach 15°C (59°F), while minimums can drop as low as -15°C (6°F). Travelers should prepare for a range of temperatures and dress in layers to stay comfortable during their visit.

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

The chart illustrates January temperature patterns in Sumiswald, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumiswald, January typically has an average temperature of 0°C (32°F), with highs reaching up to 15°C (59°F) and lows dropping to around -15°C (6°F).

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

January Precipitation in Sumiswald

In Sumiswald in January, the precipitation amount is 104 mm (4.1 in) over the course of 13 days.

January Precipitation Trends in Sumiswald

The chart displays monthly precipitation patterns in Sumiswald, 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 Sumiswald, January typically receives around 104 mm (4.1 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 Sumiswald

In Sumiswald in January, humidity is 92%. With an average temperature of 0°C (32°F), this humidity feels like a heavy blanket enveloping you as you travel, making every step feel sluggish and the air thick with moisture, which can be both invigorating and exhausting at the same time.

January Average Humidity in Sumiswald

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

In Sumiswald 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 Sumiswald, you can visit Hourly UV Index in Sumiswald.

Maximum UV Index Levels in Sumiswald for January

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

Data source: Sumiswald 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 Sumiswald Compares to Other Months

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

This table compares monthly weather conditions in Sumiswald, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	104 mm (4.1 inches)	92%	low
February Weather	2°C (36°F)	82 mm (3.2 inches)	89%	moderate
March Weather	5°C (41°F)	100 mm (3.9 inches)	87%	moderate
April Weather	9°C (48°F)	72 mm (2.8 inches)	84%	high
May Weather	12°C (54°F)	139 mm (5.5 inches)	80%	very high
June Weather	17°C (63°F)	133 mm (5.2 inches)	82%	very high
July Weather	19°C (66°F)	138 mm (5.4 inches)	83%	very high
August Weather	18°C (65°F)	134 mm (5.3 inches)	80%	very high
September Weather	14°C (58°F)	86 mm (3.4 inches)	83%	high
October Weather	10°C (50°F)	112 mm (4.4 inches)	90%	moderate
November Weather	4°C (40°F)	76 mm (3.0 inches)	88%	low
December Weather	1°C (35°F)	136 mm (5.3 inches)	90%	low