Lucerne (Luzern)
September
Weather in Lucerne for September 2025
Your guide to Lucerne weather in September - trends and predictions
In general, the average temperature in Lucerne 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.
Lucerne sees moderate rainfall in September, averaging 9 rainy days.
Is September a good time to visit Lucerne? check out the best time to travel to Lucerne 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
Lucerne 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 Lucerne
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 Lucerne 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 Lucerne forecast closer to your planned date for the most up-to-date weather information.
Lucerne in September - FAQ
What are the expected maximum and minimum temperatures in Lucerne 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 Lucerne during September?
Moderate rainfall is anticipated in Lucerne 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 Lucerne during September?
The average wind speed in Lucerne during September is 7 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Lucerne in September?
As you prepare for your trip to Lucerne 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 Lucerne, 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
September rainfall patterns in Lucerne
Explore the daily rainfall trends and prepare for Lucernes September weather 💧
UV exposure in Lucerne during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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