Temperature
Pleasant by day, brisk at night.
68°Ftypical September high
Typical range
September climate
September in Interlaken
Switzerland · Europe
Mild days with cool nights and some sun.
One of the best months here
Early to mid
Daytime high
68°F
Lows around 52°F
Precipitation
15 days/mo
Sun
9.5 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Some precipitation is expected this month.
50%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Cloudier spells limit sunshine.
9.4 hSeptember sunshine
Heat & humidity by month
ComfortableSeptember
Easy airWarm airHot airHumid air
Hourly temperature pattern
In September, afternoons feel about 67° and nights feel near 53°.
FreezingVery coldColdCoolComfortableWarmNight hours
Clear sky
Mostly cloudy skies this month.
37%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 67°F, easing to about 62°F in early evening.
Avg temp Typical range
Morning58°F
Rain26%
Cloud59%
Humid airLow
Sun intensityLow
Best windowMidday66°F
Rain31%
Cloud59%
Humid airLow
Sun intensityModerate
Late afternoon67°F
Rain37%
Cloud61%
Humid airLow
Sun intensityModerate
Early evening62°F
Rain31%
Cloud59%
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 | 41 | 29 | 4.4 | 13 | 6.0 | 79 |
| Feb | 44 | 30 | 4.0 | 12 | 7.1 | 76 |
| Mar | 50 | 35 | 4.4 | 14 | 8.6 | 75 |
| Apr | 57 | 41 | 4.8 | 14 | 10.2 | 75 |
| May | 64 | 48 | 7.4 | 19 | 10.7 | 78 |
| Jun | 72 | 56 | 7.9 | 19 | 11.4 | 78 |
| Jul | 75 | 58 | 8.7 | 19 | 12.0 | 78 |
| Aug | 74 | 58 | 8.1 | 18 | 10.8 | 80 |
| Sep | 68 | 52 | 5.9 | 15 | 9.4 | 83 |
| Oct | 61 | 46 | 4.7 | 13 | 7.9 | 83 |
| Nov | 49 | 37 | 5.0 | 14 | 6.2 | 83 |
| Dec | 42 | 31 | 5.0 | 14 | 5.4 | 81 |
Similar climates
Similar
Similar travel styleChamonixFranceSimilar travel styleLaaxSwitzerlandSimilar travel styleRevelstokeCanadaSimilar travel styleSt. Anton am ArlbergAustria
Want a side-by-side climate view? Compare Interlaken with Chamonix.
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: Jun 1, 2026
Data & methodology