Weather in Konstanz for September 2026
- In general, the average temperature in Konstanz at the beginning of September is 22.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.7 °C by the end of September. 
- Konstanz in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 172.9 mm. 
- Is September a good time to visit Konstanz? check out the best time to travel to Konstanz page. 
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Konstanz Weather September
Temperatures trend during September in Konstanz
September weather in Konstanz day by day
| Date | Weather | Temperatures | Rain | UV | More | 
|---|---|---|---|---|---|
| 1 Sept. | Cloudy | 22° /13° | 3 mm | 5 | |
| 2 Sept. | Cloudy | 22° /12° | 5.3 mm | 5 | |
| 3 Sept. | Overcast | 23° /12° | 0 mm | 6 | |
| 4 Sept. | Overcast | 23° /14° | 8.1 mm | 5 | |
| 5 Sept. | Moderate or heavy rain shower | 20° /11° | 9.8 mm | 5 | |
| 6 Sept. | Cloudy | 21° /9° | 1.5 mm | 5 | |
| 7 Sept. | Sunny | 24° /11° | 0 mm | 6 | |
| 8 Sept. | Moderate or heavy rain shower | 22° /13° | 7.2 mm | 5 | |
| 9 Sept. | Moderate or heavy rain shower | 17° /12° | 11.5 mm | 4 | |
| 10 Sept. | Moderate rain at times | 17° /11° | 3.1 mm | 4 | |
| 11 Sept. | Moderate or heavy rain shower | 17° /8° | 6.9 mm | 4 | |
| 12 Sept. | Heavy rain at times | 13° /8° | 5.5 mm | 3 | |
| 13 Sept. | Moderate or heavy rain shower | 16° /6° | 8.2 mm | 4 | |
| 14 Sept. | Patchy rain possible | 14° /9° | 10.2 mm | 3 | |
| 15 Sept. | Partly cloudy | 19° /8° | 1 mm | 5 | |
| 16 Sept. | Moderate or heavy rain shower | 15° /7° | 5.8 mm | 4 | |
| 17 Sept. | Heavy rain at times | 17° /7° | 4.4 mm | 4 | |
| 18 Sept. | Partly cloudy | 20° /7° | 0 mm | 6 | |
| 19 Sept. | Cloudy | 22° /10° | 0 mm | 6 | |
| 20 Sept. | Overcast | 23° /10° | 0.1 mm | 6 | |
| 21 Sept. | Cloudy | 22° /11° | 1.9 mm | 6 | |
| 22 Sept. | Sunny | 17° /10° | 6.1 mm | 5 | |
| 23 Sept. | Moderate or heavy rain shower | 16° /10° | 6.7 mm | 4 | |
| 24 Sept. | Patchy rain possible | 14° /9° | 10.9 mm | 4 | |
| 25 Sept. | Partly cloudy | 15° /8° | 2.4 mm | 4 | |
| 26 Sept. | Moderate or heavy rain shower | 14° /9° | 11.6 mm | 3 | |
| 27 Sept. | Moderate or heavy rain shower | 15° /7° | 4.5 mm | 4 | |
| 28 Sept. | Moderate or heavy rain shower | 12° /7° | 11 mm | 3 | |
| 29 Sept. | Overcast | 16° /6° | 1 mm | 4 | |
| 30 Sept. | Patchy rain possible | 17° /7° | 0.9 mm | 4 | |
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Konstanz weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible | 
| Temperatures | 25°/15° | 18°/10° | 15°/8° | 
| Rainfall | 103 mm | 173 mm | 92 mm | 
| Wind | 9.3 km/h | 12.3 km/h | 10.2 km/h | 
| Humidity | 81% | 83% | 86% | 
| Rainy days | 10 days | 16 days | 13 days | 
| Dry days | 21 days | 14 days | 18 days | 
Planning a trip to Konstanz? Discover the best time to visit
Konstanz in September - FAQ
What to pack to Konstanz in September?
As you prepare for your trip to Konstanz 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 Konstanz, 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- 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 Konstanz
UV exposure in Konstanz during September
Quick links
Get accurate weather forecasts for Konstanz, located at latitude 47.66 and longitude 9.176. Stay updated with localized weather information tailored for Konstanz.