Geneva Weather in September
Switzerland · September climate averages and travel tips
In September, Geneva has average highs of 22°C (71°F) and lows of 12°C (53°F). September is autumn (fall) in Switzerland. The month is moderately rainy, with about 87 mm (3.4 in) of rain spread over 11 days. You get roughly 12.3 hours of daylight and a mix of sun and cloud.
Is September a good time to visit Geneva?
Yes — September is one of the best months to visit Geneva. The weather rates excellent (8.7/10) on our comfort score.
Visiting Geneva in September
Mild days, cooler evenings
September feels warm enough for long days outside, but not as summery as August. The high is 22°C and the low is 12°C, with rain on 11 days. Showers can interrupt a lakeside stroll, though there's still plenty of sun between them.
You can explore the Old Town, walk the lakefront or take a boat across Lake Geneva without August's stronger heat. Swimming at Bains des Pâquis can still appeal on a sunny day, but don't count on every afternoon feeling like beach weather. For hikers, nearby trails are pleasant in mild conditions; keep a rainy-day plan for the mountains.
Harvest events and local holidays
Jeûne genevois, Geneva's cantonal public holiday, falls in September. Many local businesses close, so check opening arrangements if your plans depend on a particular shop or museum.
The Fête des Vendanges in Russin celebrates the grape harvest, usually in September. It's a good chance to see Geneva's wine-growing side beyond the lake and city centre. Dates vary, so confirm the festival schedule before travelling out.
A calmer city after summer
Geneva is generally less crowded than in August, when summer visitors are still in town. September remains a popular month, though, and it's not as quiet as the cooler months ahead. Prices can ease after the summer peak, but don't expect every hotel to be a bargain.
Couples who like city walks without midsummer heat may find September a sweet spot. For a practical lakeside route, walk from Jardin Anglais to Bains des Pâquis; you'll have cafés and shelter nearby if a shower rolls in.
September weather at a glance
| Average high | 22°C (71°F) |
|---|---|
| Average low | 12°C (53°F) |
| Daily mean | 16°C (62°F) |
| Rainfall | 87 mm (3.4 in) |
| Rainy days (1 mm+) | 11 |
| Humidity | 72% |
| Cloud cover | 59% |
| Daylight | 12.3 hours |
| Est. sunshine | 5.5 hours/day |
| Wind | 5.1 km/h |
| vs August | 3°C cooler than August, with similar rainfall. |
What to pack for Geneva in September
- T-shirts plus a light layer for the evening
- a sweater for cool nights
- an umbrella or rain jacket
Geneva weather in other months
← AugustBest time to visit GenevaOctober →
Better weather in September nearby
- Berlin21°C · 44 mm · Excellent
- Budapest24°C · 57 mm · Excellent
- Marseille27°C · 50 mm · Excellent
- Lisbon23°C · 24 mm · Excellent
- Nice23°C · 54 mm · Excellent
- Porto24°C · 52 mm · Excellent
Nearby in September
- Lyon23°C · 71 mm
- Bern20°C · 88 mm
- Lucerne19°C · 104 mm
- Zurich20°C · 104 mm
- Milan25°C · 85 mm
- Vaduz19°C · 127 mm
Where else is good in September? See where to go in September.