Click on a day for an hourly weather forecast
The weather in Lauterbrunnen in September is very cold with temperatures between 3°C and 12°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Lauterbrunnen. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
You can expect a few days of snow in Lauterbrunnen during September. It’s important to get out your snow boots and warm mittens to stay warm while you explore Lauterbrunnen.
Our weather forecast can give you a great sense of what weather to expect in Lauterbrunnen in September 2025.
If you’re planning to visit Lauterbrunnen in the near future, we highly recommend that you review the 14 day weather forecast for Lauterbrunnen before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -3° / -12° | 4 | 5 | 22 | 145 mm | Awful | Lauterbrunnen in January |
| February | -2° / -12° | 3 | 5 | 21 | 111 mm | Awful | Lauterbrunnen in February |
| March | 0° / -9° | 7 | 4 | 23 | 148 mm | Awful | Lauterbrunnen in March |
| April | 4° / -5° | 9 | 4 | 20 | 170 mm | Awful | Lauterbrunnen in April |
| May | 7° / -1° | 17 | 2 | 15 | 296 mm | Awful | Lauterbrunnen in May |
| June | 13° / 3° | 19 | 7 | 4 | 306 mm | Awful | Lauterbrunnen in June |
| July | 16° / 6° | 19 | 11 | 1 | 296 mm | Ok | Lauterbrunnen in July |
| August | 16° / 6° | 17 | 13 | 1 | 288 mm | Ok | Lauterbrunnen in August |
| September | 12° / 3° | 12 | 14 | 5 | 162 mm | Awful | Lauterbrunnen in September |
| October | 7° / -2° | 7 | 13 | 11 | 149 mm | Awful | Lauterbrunnen in October |
| November | 2° / -6° | 5 | 7 | 19 | 143 mm | Awful | Lauterbrunnen in November |
| December | -2° / -11° | 4 | 7 | 21 | 130 mm | Awful | Lauterbrunnen in December |