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 $829 / 3 Days
Heiden, Switzerland
from $2,649 / 10 Days
Brienz, Switzerland
from $800 / 4 Days
Basel, Switzerland
from $868 / 2 Days
Klosters-Serneus, Switzerland
from $1,712 / 5 Days
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Niedersonthofen, Germany
from $1,030 / 6 Days
Horn-Bad Meinberg, Germany
from $243 / 3 Days
Hünfeld, Germany
Salem, Germany
from $783 / 5 Days
Kevelaer, Germany
from $270 / 3 Days
Rennweg am Katschberg, Austria
from $1,331 / 8 Days
Damshagen-Stellshagen, Germany
from $462 / 5 Days
Sankt Martin, Austria
from $384 / 3 Days
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