Luzern
September
Weather in Luzern for September 2025
Your guide to Luzern weather in September - trends and predictions
In general, the average temperature in Luzern at the beginning of September is 25 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.3 °C by the end of September.
Luzern sees moderate rainfall in September, averaging 9 rainy days.
Is September a good time to visit Luzern? check out the best time to travel to Luzern page.
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21
Dry days
9
Rainy days
0
Snow days
23°/11°
Temperatures
7 km/h
Avg max wind
76 %
Avg humidity
Luzern in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2  25° | 3  26° | 4 23° | 5  24° | 6 24° | 7 27° |
| 8 25° | 9 21° | 10 23° | 11 23° | 12  18° | 13  14° | 14 13° |
| 15 18° | 16 20° | 17 18° | 18 19° | 19 18° | 20 21° | 21 22° |
| 22 17° | 23 16° | 24 17° | 25 19° | 26 18° | 27 19° | 28 16° |
| 29 20° | 30 19° |
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Temperatures trend during September in Luzern
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 26° /12° | 1.6 mm | 6 | |
| 2 Sept. | Patchy rain possible | 25° /12° | 3.8 mm | 6 | |
| 3 Sept. | Overcast | 26° /13° | 7.4 mm | 6 | |
| 4 Sept. | Overcast | 23° /11° | 5 mm | 5 | |
| 5 Sept. | Sunny | 24° /11° | 1.8 mm | 6 | |
| 6 Sept. | Sunny | 24° /10° | 0.1 mm | 6 | |
| 7 Sept. | Sunny | 27° /11° | 0 mm | 7 | |
| 8 Sept. | Patchy rain possible | 25° /14° | 8.2 mm | 6 | |
| 9 Sept. | Sunny | 21° /13° | 8.6 mm | 6 | |
| 10 Sept. | Patchy rain possible | 23° /12° | 1.1 mm | 5 | |
| 11 Sept. | Sunny | 23° /11° | 6.2 mm | 6 | |
| 12 Sept. | Thundery outbreaks possible | 18° /10° | 4.5 mm | 5 | |
| 13 Sept. | Mist | 14° /8° | 8 mm | 3 | |
| 14 Sept. | Fog | 13° /6° | 2.3 mm | 4 | |
| 15 Sept. | Partly cloudy | 18° /5° | 0 mm | 5 | |
| 16 Sept. | Light rain shower | 20° /6° | 1.5 mm | 5 | |
| 17 Sept. | Sunny | 18° /10° | 0.5 mm | 5 | |
| 18 Sept. | Light rain shower | 19° /8° | 9.6 mm | 5 | |
| 19 Sept. | Patchy rain possible | 18° /9° | 1.4 mm | 5 | |
| 20 Sept. | Patchy rain possible | 21° /8° | 1 mm | 5 | |
| 21 Sept. | Partly cloudy | 22° /10° | 2.1 mm | 6 | |
| 22 Sept. | Light rain shower | 17° /8° | 14.8 mm | 4 | |
| 23 Sept. | Light rain shower | 16° /7° | 6.4 mm | 4 | |
| 24 Sept. | Sunny | 17° /6° | 1.7 mm | 5 | |
| 25 Sept. | Sunny | 19° /7° | 0 mm | 5 | |
| 26 Sept. | Sunny | 18° /8° | 8.1 mm | 5 | |
| 27 Sept. | Sunny | 19° /10° | 2.7 mm | 5 | |
| 28 Sept. | Partly cloudy | 16° /8° | 6 mm | 4 | |
| 29 Sept. | Sunny | 20° /7° | 0.1 mm | 5 | |
| 30 Sept. | Mist | 19° /9° | 0.9 mm | 5 | |
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Important Notice
Our weather forecast for Luzern in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Luzern forecast closer to your planned date for the most up-to-date weather information.
Luzern in September - FAQ
What are the expected maximum and minimum temperatures in Luzern during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Luzern during September?
Moderate rainfall is anticipated in Luzern during September, with a total of 63.1 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Luzern during September?
The average wind speed in Luzern during September is 7 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Luzern in September?
As you prepare for your trip to Luzern in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Luzern, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
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