Early autumn · Weather & things to do
Lucerne in September
Lucerne cools off: highs slip to 68°F (20°C), from 75°F in August, with lows of 53°F (12°C) and about 4.0 in (101 mm) of rain.
September opens the best stretch on our comfort score, at 82/100 (the top score of the year).
- Avg high
- 68°F (20°C)
- Avg low
- 53°F (12°C)
- Rain
- 4.0 in (101 mm)
- Humidity
- 80%
- Cloud cover
- 61%
- Daylight
- ~12 h 19 min
- Comfort score
- 82/100 · Great
What September feels like
Days are mild at around 68°F (20°C): comfortable for walking all day, with a layer for the evening.
Nights cool to an average low of 53°F (12°C).
Showers are part of the month, adding up to about 4.0 in (101 mm).
Plan around September
September is one of Lucerne's best months on the climate data.
- Opens the best-scoring stretch on our comfort score: September.
- Comfort improves from 70/100 in August to 82/100.
- September sits inside the May – Oct window our Swiss Lakes by Rail route recommends.
What to pack for September
- A warm layer for eveningslows near 53°F
- Packable rain jacket or umbrellaabout 4.0 in of rain
- Comfortable walking shoesmost picks involve some walking
What to do in Lucerne in September
September is good outdoor weather here, so these picks lean toward the open air.
Lake Lucerne Navigation Company
Historic paddle-steamer and motor boats across Lake Lucerne.
Why now Our curated notes say it's best May–Sep.
Musegg Wall
Medieval city wall with towers you can climb for rooftop views.
Why now Our curated notes say it's best Apr–Nov.
Rathaus Brauerei
Brewpub under arcades on the river, with house beers and Swiss food.
Why now September scores 82/100 for comfort, good conditions for being outside.
KKL Luzern
Jean Nouvel's concert hall with a huge overhanging roof over the lake.
Why now Highs near 68°F and 4.0 in of monthly rain make this an easy outdoor pick.
Mount Pilatus
Golden Round Trip: boat, the world's steepest cogwheel railway up, and cable cars down.
Why now One to do outside while the weather is on your side.
Nearby in September
- Zurich in September~25 mi · highs 67°F, 4.1 in rain · similar daytime temperatures, about as wet
- Andermatt in September~33 mi · highs 54°F, 4.7 in rain · 8°C (14°F) cooler by day, wetter
- Interlaken in September~33 mi · highs 69°F, 4.2 in rain · similar daytime temperatures, about as wet
- Zermatt in September~76 mi · highs 58°F, 2.7 in rain · 6°C (10°F) cooler by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~938 m to Lucerne's ~439 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Lucerne in September: quick answers
Is September a good time to visit Lucerne?
Yes. On the climate data it's one of the best months, scoring 82/100. Expect highs of 68°F (20°C) and 4.0 in (101 mm) of rain. September is inside the May – Oct window our Swiss Lakes by Rail route recommends.
How hot is Lucerne in September?
Average highs are 68°F (20°C) and average lows 53°F (12°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Lucerne in September?
Some: about 4.0 in (101 mm) of rain falls across September on average, the 5th-wettest month of the year. The annual total is about 53.6 in (1362 mm).
What should I pack for Lucerne in September?
Bring a warm layer for evenings (lows near 53°F), packable rain jacket or umbrella (about 4.0 in of rain) and comfortable walking shoes (most picks involve some walking).
Routes in season in September
- Swiss Lakes by Rail May – Oct
Planning Lucerne in September?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.