Temperature
Pleasant by day, mild at night.
74°Ftypical September high
Typical range
September climate
September in Ascona
Switzerland · Europe
Mild days and some sun.
One of the best months here
Daytime high
74°F
Lows around 61°F
Rain
Several rainy days
Sun
9 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 11 wet days, fewer than in most months.
37%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Cloudier spells limit sunshine.
9 hSeptember sunshine
Heat & humidity by month
ComfortableSeptember
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 74° and nights feel near 65°.
Very coldColdCoolComfortableWarmHotNight hours
Clear sky
Partly cloudy skies this month.
42%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
3 mphSeptember Calm
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 73°F, easing to about 70°F in early evening.
Avg temp Typical range
Morning65°F
Rain23%
Cloud60%
Humid airLow
Sun intensityLow
Midday71°F
Rain21%
Cloud55%
Humid airLow
Sun intensityModerate
Best windowLate afternoon73°F
Rain21%
Cloud54%
Humid airLow
Sun intensityModerate
Early evening70°F
Rain18%
Cloud51%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 48 | 37 | 2.8 | 8 | 6.3 | 77 |
| Feb | 51 | 38 | 2.8 | 8 | 7.4 | 72 |
| Mar | 58 | 43 | 3.9 | 10 | 8.7 | 67 |
| Apr | 64 | 48 | 6.1 | 12 | 9.5 | 66 |
| May | 72 | 56 | 7.5 | 15 | 10.8 | 69 |
| Jun | 80 | 64 | 6.7 | 13 | 12.0 | 69 |
| Jul | 83 | 67 | 6.1 | 12 | 12.6 | 69 |
| Aug | 82 | 67 | 7.4 | 13 | 11.0 | 72 |
| Sep | 74 | 61 | 6.6 | 11 | 9.0 | 75 |
| Oct | 65 | 55 | 8.4 | 12 | 6.6 | 79 |
| Nov | 55 | 46 | 8.0 | 12 | 5.6 | 79 |
| Dec | 49 | 39 | 3.3 | 9 | 5.6 | 79 |
Similar climates
Similar
Similar travel styleA CoruñaSpainSimilar travel styleAachenGermanySimilar travel styleAiudRomaniaSimilar travel styleAlba IuliaRomania
Want a side-by-side climate view? Compare Ascona with A Coruña.
Climate data notePlanning guidance, not a forecast
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