Cold Weather Doesn’t Mean Less Water: Here’s Why

Cold weather often leads to an unintentional drop in daily water intake. “During summer, the body gives clear signals in the form of frequent thirst, prompting people to drink water regularly,” explains By Dr Dinesh Kumar, Director, Internal Medicine, Fortis Greater Noida.

“In winter, however, the sensation of thirst reduces significantly. As a result, many people assume their body does not require the same amount of water, which is a common and avoidable mistake.”

According to Dr Kumar, lower temperatures do not mean reduced fluid loss. “The body continues to lose water every day through breathing, urination, and the skin,” he says. “Cold air is usually dry, and breathing this dry air leads to continuous water loss without people realising it.”

Unlike summer, when sweating makes dehydration obvious, winter dehydration is more subtle and often goes unnoticed.

Another factor contributing to reduced water intake is the increased consumption of hot beverages. “People tend to drink more tea or coffee during winter,” notes Dr. Kumar. “While these beverages do provide some fluid, they cannot replace plain water. In fact, excessive intake of tea or coffee can increase urination.” If water intake is not adjusted accordingly, this can worsen dehydration rather than prevent it.

Dr Kumar points out that dehydration in winter can present with symptoms that are often misattributed to the cold. “Tiredness, headaches, dry skin, constipation, dizziness, and reduced concentration are common signs of inadequate hydration,” he explains. “In older adults, the consequences can be more serious, increasing the risk of urinary tract infections, kidney problems, low blood pressure, and joint pain.”

Water remains essential for vital bodily functions throughout the year. “Adequate hydration supports digestion, blood circulation, kidney function, and joint health,” says Dr. Kumar. “Many people experience joint stiffness during colder months, and staying hydrated plays an important role in maintaining joint mobility.”

Maintaining hydration during winter requires conscious effort. “Do not wait to feel thirsty before drinking water,” advises Dr. Kumar. “Instead, sip small amounts of water at regular intervals throughout the day.” For those who find cold water uncomfortable, he suggests choosing warm or room-temperature water, noting that “the temperature of the water does not reduce its benefits.”

Simple habits can make a significant difference. “Keeping a water bottle within reach acts as a constant reminder,” says Dr. Kumar. “Monitoring urine colour is also helpful, light yellow usually indicates good hydration, while darker urine suggests the need for more fluids.”

In conclusion, Dr Kumar emphasises that cold weather does not reduce the body’s requirement for water. “Even when thirst is less noticeable, the body continues to lose fluids daily and needs regular replenishment,” he says. “Drinking adequate water during winter is essential for maintaining energy levels, preventing common seasonal health complaints, and supporting overall wellbeing.”