Body temperature through the day

Short answer: Body temperature shifts by about one degree over the course of a day. It is lowest around four in the morning and highest in the late afternoon. That explains why the same room can feel cold in the morning and warm later on.

One degree up and down every day

The body does not keep a completely fixed temperature. It follows a rhythm that repeats daily, and the gap between the lowest and highest point is about one degree. That sounds small, but you notice it clearly in how you feel cold and warmth. The rhythm comes from within and follows your day, not the weather.

Lowest at four in the morning

No matter how warm the bedroom is, the body is coldest in the early morning hours. That is why many people wake up, pull the duvet closer or notice cold feet just before dawn. If you get up early, you start the day while the body is still at its coolest. A soft layer next to the skin eases the transition. See bamboo boxers.

Mornings feel colder than they are

The room may be the same temperature as the evening before, yet you still feel cold. That is not about the air, but about the body not having warmed up yet. An extra layer in the morning is therefore often the right choice, even when the thermometer reads the same as yesterday. Once you warm up, it can come off.

Highest in the late afternoon

Around five in the afternoon, body temperature reaches its peak. This is when many people feel warm or sweat a little more easily, even though the room has not changed. A thin layer that absorbs moisture and lets air reach the skin suits this part of the day well. See bamboo T-shirts for men.

The drop before sleep is necessary

In the evening, temperature starts to fall again, and that is part of how the body prepares for sleep. The body needs to lower its temperature to fall asleep. If the bed is too warm, or clothing traps the heat, it takes longer. Many sleep best with cool feet and a light layer. See bamboo socks.

Dress for the time of day

Once you know the rhythm, it is easier to dress right. Start the day with an extra layer you can remove later. Choose something thinner for the afternoon, when you are warmest. And keep the evening light so the body can cool down calmly. It is less about the weather and more about where you are in the day.

Layers that are easy to change

Because the body shifts through the day, it helps to dress in layers rather than one thick garment. A thin inner layer and a loose outer layer let you adjust without changing completely. Soft fabrics that do not feel tight are also easier to wear from morning to evening.

When the rhythm is shifted

If your daily routine changes, for example through night work or long journeys, body temperature does not follow straight away. You may feel cold at times when you would normally be warm. Give the body time and keep an extra layer close during the first days. If you often feel cold for no clear reason, talk to your doctor.

Frequently asked questions

When is the body coldest

Around four in the morning. This applies no matter how warm the room is, which is why many people wake up feeling cold just before dawn.

When is the body warmest

In the late afternoon, around five o'clock. The difference over the day is about one degree, which is enough to notice in everyday life.

Why does it matter for clothing

Because you feel cold more easily early in the morning and sweat more easily in the late afternoon, at exactly the same room temperature. That is why an extra morning layer often makes sense.