July Weather in Altdorf, Switzerland

Last updated: August 27, 2025

In July, the average temperature in Altdorf, Switzerland hovers around 15°C (59°F), with a minimum of 5°C (42°F) and a maximum reaching 29°C (84°F). Expect 208 mm (8.2 in) of precipitation over 19 days, accompanied by an average humidity of 83%. Prepare for a mix of weather that keeps the air fresh and vibrant!

July Temperature in Altdorf

In July in Altdorf, the average temperature is 15°C (59°F). Maximums can reach 29°C (84°F), while minimums can dip as low as 5°C (42°F). This variation makes it a great time for travelers to enjoy a mix of pleasant warm days and cool evenings.

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

The chart illustrates July 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, July typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (84°F) and lows dropping to around 5°C (42°F).

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

July Precipitation in Altdorf

In Altdorf in July, the precipitation amount is 208 mm (8.2 in) over a span of 19 days.

July Precipitation Trends in Altdorf

The chart displays monthly precipitation patterns in Altdorf, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Altdorf, July typically receives around 208 mm (8.2 inches) of precipitation spread over approximately 19 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Altdorf

In Altdorf in July humidity is 83%. With an average temperature of 15°C (59°F), this humidity feels like a cozy, damp embrace that can be quite stifling for traveling, making even short walks feel more exhausting than they should, and prompting a need for frequent breaks in shaded or air-conditioned areas.

July Average Humidity in Altdorf

This chart illustrates the average monthly humidity levels in Altdorf, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Altdorf is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Altdorf

In Altdorf in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Altdorf.

Maximum UV Index Levels in Altdorf for July

The chart shows the monthly maximum UV Index (UVI) for Altdorf in July, 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 July, the maximum UV index in Altdorf typically reaches 9, which falls under the very high exposure category.

Data source: Altdorf July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
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 Weather	1°C (34°F)	136 mm (5.3 inches)	87%	moderate
April Weather	5°C (41°F)	114 mm (4.5 inches)	84%	high
May Weather	8°C (48°F)	190 mm (7.5 inches)	80%	very high
June Weather	14°C (57°F)	229 mm (9.0 inches)	82%	very high
July Weather	15°C (59°F)	208 mm (8.2 inches)	83%	very high
August Weather	15°C (59°F)	231 mm (9.1 inches)	80%	very high
September Weather	11°C (52°F)	168 mm (6.6 inches)	83%	high
October Weather	7°C (45°F)	162 mm (6.4 inches)	90%	moderate
November Weather	2°C (35°F)	102 mm (4.0 inches)	88%	moderate
December Weather	-2°C (29°F)	190 mm (7.5 inches)	90%	low