nomadseason

June Weather in Altdorf, Switzerland

Last updated: August 27, 2025

In June, the average temperature in Altdorf, Switzerland hovers around 14°C (57°F). Expect a range that can dip to a chilly 1°C (35°F) and peak at a warm 29°C (85°F). With 229 mm (9.0 in) of precipitation spread over 20 days, it's essential to prepare for wet weather. The humidity levels are notably high at 82%, adding to the atmosphere of this vibrant locale.

June Temperature in Altdorf

In June in Altdorf, the average temperature is 14°C (57°F). Maximums can reach 29°C (85°F), while minimums can drop to 1°C (35°F). It's advisable to pack layers for your trip, as the weather can vary significantly throughout the day.

June Weather in Altdorf: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Altdorf, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altdorf, June typically has an average temperature of 14°C (57°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec252934414757595952453528
Data source: Temperature data for Altdorf generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Altdorf

In Altdorf in June, the precipitation amount is 229 mm (9.0 in) over the course of 20 days.

June Precipitation Trends in Altdorf

The chart displays monthly precipitation patterns in Altdorf, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Altdorf, June typically receives around 229 mm (9.0 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec154108136114190229208231168162102190
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in Altdorf

In Altdorf in June, humidity is 82%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making outdoor activities uncomfortable and travel more challenging due to the heavy, damp air.

June Average Humidity in Altdorf

This chart illustrates the average monthly humidity levels in Altdorf, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Altdorf is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Altdorf

In Altdorf in June, 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 Altdorf.

Maximum UV Index Levels in Altdorf for June

The chart shows the monthly maximum UV Index (UVI) for Altdorf in June, 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 June, the maximum UV index in Altdorf typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810986432
Data source: Altdorf June 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 June Weather in Altdorf Compares to Other Months

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

This table compares monthly weather conditions in Altdorf, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)154 mm (6.1 inches)92%low
February Weather-2°C (30°F)108 mm (4.2 inches)89%moderate
March Weather1°C (34°F)136 mm (5.3 inches)87%moderate
April Weather5°C (41°F)114 mm (4.5 inches)84%high
May Weather8°C (48°F)190 mm (7.5 inches)80%very high
June Weather14°C (57°F)229 mm (9.0 inches)82%very high
July Weather15°C (59°F)208 mm (8.2 inches)83%very high
August Weather15°C (59°F)231 mm (9.1 inches)80%very high
September Weather11°C (52°F)168 mm (6.6 inches)83%high
October Weather7°C (45°F)162 mm (6.4 inches)90%moderate
November Weather2°C (35°F)102 mm (4.0 inches)88%moderate
December Weather-2°C (29°F)190 mm (7.5 inches)90%low

Compare Altdorf's Climate with Cities Worldwide