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May Weather in Interlaken, United States

Last updated: June 24, 2025

In Interlaken, United States, the average temperature in May hovers around 15°C (60°F), with a range that can dip to a chilly 3°C (37°F) and soar up to a warm 29°C (85°F). Expect 129 mm (5.1 in) of precipitation spread across approximately 13 days, contributing to an average humidity level of 69%. Stay prepared for a mix of cool and warm days!

May Temperature in Interlaken

In May in Interlaken, the average temperature is 15°C (60°F). Maximums can reach 29°C (85°F) and minimums can be as low as 3°C (37°F). This climate offers a pleasant range for travelers, making it an ideal time to explore Interlaken.

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

The chart illustrates May 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, May typically has an average temperature of 15°C (60°F), with highs reaching up to 29°C (85°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec363842516070777670624941
Data source: Temperature data for Interlaken generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Interlaken

In Interlaken in May, the precipitation amount is 129 mm (5.1 in) over the course of 13 days.

May Precipitation Trends in Interlaken

The chart displays monthly precipitation patterns in Interlaken, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Interlaken, May typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec7812910912412989129126102153100127
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Interlaken

In Interlaken in May, humidity is 69%. With an average temperature of 15°C (60°F), this humidity feels like a cool, damp embrace that can make outdoor activities feel slightly heavier and more exhausting, but still inviting for exploring the charming sights and sounds of the area.

May Average Humidity in Interlaken

This chart illustrates the average monthly humidity levels in Interlaken, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Interlaken is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Interlaken

In Interlaken in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Interlaken.

Maximum UV Index Levels in Interlaken for May

The chart shows the monthly maximum UV Index (UVI) for Interlaken in May, 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 May, the maximum UV index in Interlaken typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Interlaken May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)78 mm (3.1 inches)84%moderate
February Weather4°C (39°F)129 mm (5.1 inches)82%moderate
March Weather6°C (43°F)109 mm (4.3 inches)81%high
April Weather11°C (51°F)124 mm (4.9 inches)78%very high
May Weather15°C (60°F)129 mm (5.1 inches)69%very high
June Weather21°C (70°F)89 mm (3.5 inches)69%very high
July Weather25°C (77°F)129 mm (5.1 inches)62%very high
August Weather24°C (76°F)126 mm (4.9 inches)65%very high
September Weather21°C (71°F)102 mm (4.0 inches)68%very high
October Weather17°C (62°F)153 mm (6.0 inches)74%high
November Weather9°C (49°F)100 mm (3.9 inches)82%moderate
December Weather5°C (41°F)127 mm (5.0 inches)80%low

Compare Interlaken's Climate with Cities Worldwide