Temperature
Cool by day, brisk at night.
63°Ftypical September high
Typical range
Cool days and some sun.

Cool by day, brisk at night.
Rain is frequent. About 14 wet days this month.
Cloudier spells limit sunshine.
In September, afternoons feel about 61° and nights feel near 47°.
Mostly cloudy skies this month.
Calm winds are typical in September.
September late afternoons are around 63°F, easing to about 57°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 34 | 20 | 3.6 | 13 | 6.3 | 78 |
| Feb | 38 | 23 | 3.1 | 12 | 7.4 | 77 |
| Mar | 44 | 29 | 3.9 | 14 | 9.0 | 75 |
| Apr | 50 | 35 | 4.4 | 14 | 10.4 | 76 |
| May | 59 | 43 | 6.2 | 19 | 10.6 | 79 |
| Jun | 68 | 51 | 7.2 | 20 | 11.3 | 78 |
| Jul | 70 | 53 | 7.8 | 19 | 11.7 | 79 |
| Aug | 70 | 53 | 7.8 | 17 | 10.3 | 81 |
| Sep | 63 | 47 | 5.2 | 14 | 9.2 | 82 |
| Oct | 56 | 41 | 4.9 | 13 | 7.7 | 82 |
| Nov | 44 | 29 | 5.2 | 14 | 6.1 | 82 |
| Dec | 35 | 21 | 4.0 | 13 | 5.6 | 80 |
Similar climates
Want a side-by-side climate view? Compare Laax with Chamonix.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology