Schwyz in September
5.4out of 10
Not the best time
Cool: highs only around 15°C. Very wet: about 16 rainy days.
15°CAvg high
6°CAvg low
16Rainy days (171 mm)
12:19 hDaylight
07:10Sunrise · 19:29 Sunset
Why this score
- Cool: highs only around 15°C
- Very wet: about 16 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in September is fairly consistent from year to year (2.8 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -1°C | -6°C | 128 mm | 13 | – | – | 3.1 |
| February | 1°C | -6°C | 117 mm | 13 | – | – | 3.2 |
| March | 5°C | -3°C | 137 mm | 16 | – | – | 3.6 |
| April | 8°C | 0°C | 142 mm | 16 | – | – | 4.3 |
| May | 13°C | 4°C | 196 mm | 20 | – | – | 4.7 |
| June | 17°C | 8°C | 224 mm | 20 | – | – | 5.3 |
| July | 19°C | 10°C | 220 mm | 20 | – | – | 5.6 |
| August | 19°C | 10°C | 228 mm | 19 | – | – | 5.6 |
| September | 15°C | 6°C | 171 mm | 16 | – | – | 5.4 |
| October | 10°C | 3°C | 135 mm | 14 | – | – | 5.1 |
| November | 4°C | -2°C | 143 mm | 14 | – | – | 3.7 |
| December | 0°C | -6°C | 140 mm | 15 | – | – | 2.9 |
Frequently asked questions
How hot is Schwyz in September?
Daytime highs average 15°C and nights about 6°C.
When is the best time to visit Schwyz?
The best months are July, August, September, June.