Last updated: August 27, 2025
In September, the average temperature in Santa Maria in Calanca, Switzerland hovers around 13°C (55°F). Expect a minimum drop to -2°C (29°F) and a peak of 23°C (74°F). With 113 mm (4.4 in) of precipitation spread over 13 days, the atmosphere feels quite humid, averaging around 83%. Make sure to pack accordingly!
In September in Santa Maria in Calanca, the average temperature is 13°C (55°F). Maximums can reach 23°C (74°F), and minimums can drop as low as -2°C (29°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!
In Santa Maria in Calanca in September, the precipitation amount is 113 mm (4.4 in) over the course of 13 days.
In Santa Maria in Calanca in September humidity is 83%. With an average temperature of 13°C (55°F), this humidity feels like a damp embrace, often leaving travelers feeling slightly sticky and in need of frequent breaks in the shade.
In Santa Maria in Calanca in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Santa Maria in Calanca.
UV Risk Categories
Weather in Santa Maria in Calanca varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santa Maria in Calanca, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 52 mm (2.0 inches) | 92% | low |
| February Weather | 0°C (33°F) | 50 mm (2.0 inches) | 89% | moderate |
| March Weather | 3°C (37°F) | 85 mm (3.3 inches) | 87% | high |
| April Weather | 7°C (44°F) | 114 mm (4.5 inches) | 84% | very high |
| May Weather | 10°C (51°F) | 151 mm (6.0 inches) | 80% | very high |
| June Weather | 15°C (60°F) | 131 mm (5.2 inches) | 82% | very high |
| July Weather | 17°C (63°F) | 92 mm (3.6 inches) | 83% | very high |
| August Weather | 17°C (62°F) | 135 mm (5.3 inches) | 80% | very high |
| September Weather | 13°C (55°F) | 113 mm (4.4 inches) | 83% | high |
| October Weather | 8°C (47°F) | 166 mm (6.5 inches) | 90% | moderate |
| November Weather | 3°C (38°F) | 139 mm (5.5 inches) | 88% | moderate |
| December Weather | -1°C (30°F) | 108 mm (4.2 inches) | 90% | low |