Switzerland

Lucerne in September: weather & travel advice

This month's data profile

Rain shapes the decision

Lucerne in September is climatically well suited to city breaks. The average daily high is around 17 °C. With about 14 rainy days it is wet.

Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.

Rank among 12 monthly averages

56/100 · #4

Warmth

Dryness

Sun

Published best categories: City break, Active

The Chapel Bridge in Lucerne below Mount Pilatus

Lucerne · SeptemberPhoto: Ermell · CC BY-SA 4.0

Average high: 17 °C
Average low: 9 °C
Rainy days (est.): 14 rainy days (est.)
Sun (est.): 5 h/day
Humidity: 80 %

Climate evidence with direct month comparison

The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.

Climate averages for Lucerne: selected and adjacent months
Month	Avg high °C	Avg low °C	Rainy days (est.)	Precipitation mm	Sun h/day (est.)	Humidity %	Wind m/s	Score
August	21	13	17	143	6.2	77	1.5	65
September (selected)	17	9	14	111	4.6	80	1.5	56
October	13	5	13	98	2.9	81	1.5	44

How do the previous and next months compare?

Baseline: September (56/100)

Positive and negative values show the change from the selected month.

	Score Δ	Average high Δ	Average low Δ	Rainy days Δ	Rain Δ	Sun Δ	Humidity Δ	Wind Δ
August	+9	+3.7 °C	+3.9 °C	+2.3	+32.3 mm	+1.6 h	-2.7 %	±0 m/s
October	-12	-3.8 °C	-3.7 °C	-1	-13.5 mm	-1.7 h	+1.2 %	+0.1 m/s

All twelve months in context

JanUnsuitable27 FebUnsuitable34 MarUnsuitable33 AprUnsuitable39 MayLimited45 JunLimited58 JulLimited63 AugGood65 SepLimited56 OctUnsuitable44 NovUnsuitable28 DecUnsuitable26

Rainy days (estimated)

Sunshine hours (estimated)h/day

Average daily high°C

Find a place to stay

Where to stay in Lucerne

Compare available stays, prices and cancellation terms for Lucerne on Booking.com.

Booking.comFind places to stay

Affiliate link: there is no extra cost to you.

Useful next decisions

Lucerne · Month by month

Lake Como · September Innsbruck · September Garmisch-Partenkirchen · September Andorra la Vella · September

Frequently asked questions

How warm is Lucerne in September?

The average daily high is around 17 °C, with an average daily low of about 9 °C.

Does it rain a lot in Lucerne in September?

The curated estimate is about 14 rainy days per month, not a directly measured long-term average. Total precipitation averages around 111 mm for the month. A rainy day does not mean all-day rain.

When is the best time to visit Lucerne?

By the climate score, July and August are the strongest months for Lucerne. September is not among them.