For bathing on Shabbat, the Shulchan Aruch (Siman 326) forbids washing the entire body — even limb by limb — with water heated by fire, even if heated before Shabbat. Washing face, hands, and feet is permitted; cold water is treated far more broadly.
The modern hot shower raises a practical question: ask your Rav.
The Shulchan Aruch forbids washing the whole body — and even limb by limb — with water heated by fire, even heated before Shabbat. On the other hand, washing the face, hands and feet is permitted, and cold water is treated far more broadly. The modern hot shower therefore raises a genuine question. For your case — ask your Rav.
A quick shower on Shabbat morning? Cooling off on a summer afternoon? Siman 326 of the Shulchan Aruch codifies the rules of washing (רחיצה, rechitzah) on Shabbat — and the decisive distinction there is between hot water and cold water.
What does the Shulchan Aruch say in Siman 326?
אסור לרחוץ כל גופו, אפילו כל אבר ואבר לבד, אפילו במים שהוחמו מערב שבת… אבל מותר לרחוץ בהם פניו ידיו ורגליו.
"It is forbidden to wash one's whole body, and even each limb separately, even with water heated before Shabbat… But it is permitted to wash with it the face, hands and feet." (Rema: or other limbs, as long as one does not wash the whole body.)
A key point: the prohibition does not depend on when the water was heated — even if heated the day before, hot water is included. What is at stake is the hot wash of the entire body.
The hot water / cold water distinction
The siman contrasts several heat sources:
- Water heated by fire (chamei ha-ur, חמי האור): washing the body is forbidden.
- Naturally hot springs (chamei Tveria, חמי טבריא, like the springs of Tiberias): the text is more lenient, with conditions (an uncovered place, not in a vessel…).
- Cold water: treated far more broadly — "and all the more so with cold water," says the Mechaber.
The siman adds concrete safeguards: one does not splash with cold water and then warm up near a fire (seif 4), because one warms the water on the body (mafshir, מפשיר) — which amounts to washing with hot water. It also warns against inducing perspiration (zeiah, זיעה) in a covered place (seif 2).
Why the modern shower raises a question
Our "hot" shower is supplied by a water heater — that is, water heated by fire (chamei ha-ur), precisely the case at issue. To this are added other considerations raised by contemporary authorities:
- the risk of wringing out (sechitah, סחיטה) hair or a washcloth;
- the fact of heating water by opening the hot tap (cold water entering the tank);
- differences in custom between communities (Sephardim / Ashkenazim / minhag Chabad), including for cold or lukewarm water.
This is why the practical answer cannot be drawn from a single line: it requires knowing your own minhag and your situation.
This article presents what the source says for the purpose of study. Customs regarding showering on Shabbat vary by community and situation. To know what applies to you, ask your Rav.
Frequently asked questions
Can you take a hot shower on Shabbat?
The siman forbids washing the whole body with water heated by fire, even heated before Shabbat — which bears on the modern hot shower. Customs vary; for practice, ask your Rav.
Can you wash your face and hands?
Yes: the siman permits washing face, hands and feet (and according to the Rema other limbs) as long as one does not wash the whole body.
Is cold water permitted?
The siman is far more lenient with cold water, but other precautions apply (wringing out hair…) and customs differ — ask your Rav.
Study Siman 326 in depth
Four levels, from beginner to talmid chacham — Hebrew text, translation, pilpul and the shitah of the Admur HaZaken.