January Weather in Interlaken, United States

Last updated: June 24, 2025

In January, the average temperature in Interlaken, United States is a mild 11°C (51°F). Expect a range from a brisk 0°C (33°F) to a pleasant 23°C (74°F). Be prepared for some rain, as 122 mm (4.8 in) of precipitation typically falls over 8 days. With an average humidity of 82%, it’s a good idea to bring layers and stay hydrated!

January Temperature in Interlaken

In January in Interlaken, the average temperature is 11°C (51°F). Maximums can reach 23°C (74°F), while minimums can drop to as low as 0°C (33°F). Be prepared for a range of temperatures during your travels, as layers will keep you comfortable in varying conditions.

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

The chart illustrates January temperature patterns in Interlaken, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Interlaken, January typically has an average temperature of 11°C (51°F), with highs reaching up to 23°C (74°F) and lows dropping to around 0°C (33°F).

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

January Precipitation in Interlaken

In Interlaken in January, the precipitation amount is 122 mm (4.8 in) spread over 8 days.

January Precipitation Trends in Interlaken

The chart displays monthly precipitation patterns in Interlaken, 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 Interlaken, January typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 8 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 Interlaken

In Interlaken in January, humidity is 82%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring additional layers to stay warm while exploring.

January Average Humidity in Interlaken

This chart illustrates the average monthly humidity levels in Interlaken, 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 Interlaken is approximately 82%, 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 Interlaken

In Interlaken in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Interlaken for better planning.

Maximum UV Index Levels in Interlaken for January

The chart shows the monthly maximum UV Index (UVI) for Interlaken 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 Interlaken typically reaches 4, which falls under the moderate exposure category.

Data source: Interlaken 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 Interlaken Compares to Other Months

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

This table compares monthly weather conditions in Interlaken, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	122 mm (4.8 inches)	82%	moderate
February Weather	11°C (52°F)	105 mm (4.1 inches)	84%	moderate
March Weather	12°C (54°F)	88 mm (3.5 inches)	82%	very high
April Weather	13°C (57°F)	32 mm (1.2 inches)	78%	very high
May Weather	15°C (59°F)	19 mm (0.7 inches)	71%	extreme
June Weather	17°C (62°F)	1 mm (0.1 inches)	64%	extreme
July Weather	17°C (63°F)	1 mm (0.0 inches)	58%	extreme
August Weather	18°C (65°F)	1 mm (0.0 inches)	54%	very high
September Weather	18°C (65°F)	2 mm (0.1 inches)	55%	very high
October Weather	16°C (62°F)	22 mm (0.9 inches)	62%	high
November Weather	13°C (56°F)	42 mm (1.7 inches)	78%	moderate
December Weather	10°C (51°F)	92 mm (3.6 inches)	80%	moderate