Switzerland (Lucerne) · September
Best travel monthTravel seasonSwitzerland · Europe
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 4° (39°)-3– (27–)12 (54) | 6° (43°)-2– (28–)14 (57) | 11° (52°)2– (36–)19 (66) | 15° (59°)5– (41–)23 (73) | 19° (66°)9– (48–)26 (79) | 23° (73°)14– (57–)31 (88) | 25° (77°)16– (61–)32 (90) | 24° (75°)14– (57–)30 (86) | 20° (68°)11– (52–)26 (79) | 15° (59°)7– (45–)21 (70) | 9° (48°)1– (34–)16 (61) | 5° (41°)-1– (30–)12 (54) |
Ø night, range from coldest to warmest nightØ nightrange | -1° (30°)-8– (18–)5 (41) | -1° (30°)-6– (21–)5 (41) | 2° (36°)-3– (27–)8 (46) | 6° (43°)-1– (30–)11 (52) | 10° (50°)2– (36–)15 (59) | 14° (57°)7– (45–)18 (64) | 15° (59°)9– (48–)18 (64) | 15° (59°)9– (48–)19 (66) | 12° (54°)6– (43–)16 (61) | 8° (46°)1– (34–)12 (54) | 3° (37°)-3– (27–)8 (46) | 0° (32°)-7– (19–)5 (41) |
☀️Sunshine | 3h UV 3 | 5h UV 4 | 7h UV 6 | 8h UV 7 | 7h UV 7 | 9h UV 8 | 9h UV 8 | 8h UV 7 | 7h UV 6 | 6h UV 5 | 3h UV 3 | 3h UV 2 |
🌧Rain Days | 8d63mm (2.5") | 7d54mm (2.1") | 8d67mm (2.6") | 8d78mm (3.1") | 12d138mm (5.4") | 12d130mm (5.1") | 12d148mm (5.8") | 11d158mm (6.2") | 8d99mm (3.9") | 8d76mm (3.0") | 8d65mm (2.5") | 9d80mm (3.2") |
Best travel time current monthØ = average · small figures = range: coolest–warmest day / coldest–warmest nightClimate data 2005–2025 · Source: ERA5 + station data
Travel season — mid-range prices, good availability.
September is one of the best travel months for Switzerland (Lucerne) — conditions are stable, temperatures reach 20°C (68°F), and outdoor activities are excellent.
Daytime highs average 20°C (68°F), cooling to 12°C (54°F) at night (daily average: 15°C (59°F)). Peaks reach around 26°C (79°F), the coldest nights around 6°C (43°F). The sun shines an average of 7 hours per day; there are 8 rain days with 99 mm (3.9 in) total.
Layer up — warm days and cool evenings alternate. Perfect timing for hikes and sightseeing.
Autumn belongs to the photographers: morning mist over the lake, golden leaves on the slopes and clear views of the central Swiss peaks. The tour groups thin out and prices ease. In November darkness falls early and the city becomes a quiet place for museums and cafés again.
Packing list for Switzerland (Lucerne) in September
- Long-sleeved shirts and light trousers
- Light jacket
- Sunscreen
- Sunglasses
- Light umbrella or rain poncho
- Travel first-aid kit
Frequently Asked Questions
- Is September a good time to visit Switzerland (Lucerne)?
- Yes — September is one of the best months to visit Switzerland (Lucerne) (Climate Score: 59/100). Pleasant temperatures (20°C (68°F)), good sunshine (7 h/day), and few rain days (8) make it one of the most recommended months.
- How warm is it in Switzerland (Lucerne) in September?
- In September, Switzerland (Lucerne) sees daily highs of 20°C (68°F). Nights cool to 12°C (54°F), with a daily average of 15°C (59°F). Peaks reach around 26°C (79°F), the coldest nights around 6°C (43°F).
- How much rain falls in Switzerland (Lucerne) in September?
- In September, Switzerland (Lucerne) receives an average of 99 mm (3.9 in) of rain over 8 rain days. An umbrella may occasionally be needed.
- How many sunshine hours does Switzerland (Lucerne) get in September?
- Switzerland (Lucerne) averages 7 sunshine hours per day in September — above the annual average.
