Here are our retreats in September 2025 in Switzerland from the Detox Retreats section. To know if September is the right month for you to travel in Switzerland, here are a few key weather facts. Temperatures can drop to 1 degrees in September. Highs, on the other hand, can reach 22 degrees.
St. Margrethen, Switzerland
from $828 / 3 Days
Heiden, Switzerland
from $1,538 / 5 Days
Brienz, Switzerland
from $800 / 4 Days
Basel, Switzerland
from $858 / 2 Days
Poschiavo, Switzerland
from $1,152 / 3 Days
Altdorf, Switzerland
from $2,080 / 6 Days
Klosters-Serneus, Switzerland
from $1,711 / 5 Days
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Barbentane, France
from $635 / 8 Days
Hamburg, Germany
from $296 / 3 Days
Waldbreitbach, Germany
from $598 / 4 Days
Hennef (Sieg), Germany
from $560 / 3 Days
Feucht, Germany
from $675 / 3 Days
Groß Kreutz (Havel), Germany
from $236 / 3 Days
Krakow am See, Germany
from $1,900 / 7 Days
Siedelsbrunn, Germany
from $374 / 3 Days
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