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With rising temperatures and longer days, staying hydrated in the summer is essential for overall health and well-being. Proper hydration supports digestion, regulates body temperature, prevents heat-related illnesses, and keeps energy levels up. As a registered dietitian, I’m here to share the importance of hydration, signs of dehydration, and the best ways to keep your body hydrated during the hottest months.

Why Hydration Matters

Water is crucial for nearly every function in the body. In the summer, we lose more fluids through sweat, which can lead to dehydration if we’re not replenishing properly. Hydration is essential for:

  • Regulating body temperature 
  • Preventing fatigue and dizziness 
  • Supporting digestion and kidney function 
  • Keeping skin healthy and glowing 
  • Enhancing physical performance and cognitive function 

Signs of Dehydration

It’s important to recognize early signs of dehydration before it leads to more serious issues like heat exhaustion or heatstroke. Watch for:

  • Dry mouth and thirst 
  • Dark yellow urine or infrequent urination 
  • Fatigue or dizziness 
  • Headaches 
  • Muscle cramps 

If you experience extreme thirst, confusion, or rapid heartbeat, seek medical attention, as these could be signs of severe dehydration.

How Much Water Do You Need?

The general recommendation is about 8-10 cups (64-80 ounces) of water per day, but in hot weather, you may need more. A good rule of thumb is to drink when you’re thirsty and monitor urine color—light yellow is ideal.

Best Hydration Strategies for Summer

1. Drink Plenty of Water

Water is the best and most natural way to stay hydrated. Carry a reusable water bottle and sip throughout the day. If you struggle to drink enough water, set reminders or infuse it with fresh fruit for added flavor.

2. Eat Hydrating Foods

Many fruits and vegetables have high water content and can help with hydration. Some of the best options include:

  • Watermelon (92% water) 
  • Cucumbers (96% water) 
  • Strawberries (91% water) 
  • Lettuce (95% water) 
  • Celery (95% water) 

3. Choose Electrolyte-Rich Beverages

If you’re sweating heavily due to outdoor activities, replenish electrolytes (sodium, potassium, magnesium) with:

  • Coconut water 
  • Homemade electrolyte drinks (water with lemon, honey, and a pinch of salt) 
  • Sports drinks (for intense exercise) 

4. Limit Dehydrating Beverages

Alcohol, sugary sodas, and excessive caffeine can contribute to dehydration. If you consume them, balance them with plenty of water.

5. Hydrate Before, During, and After Exercise

Drink water before heading outside, sip small amounts during activity, and rehydrate afterward to replace lost fluids.

Final Thoughts

Hydration is key to staying healthy and energized during the summer months. By drinking water consistently, eating hydrating foods, and listening to your body’s signals, you can beat the heat and feel your best all season long.

Stay cool, stay hydrated, and enjoy summer safely!

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Emily Dunkley MS, RDN, CPT

Emily Dunkley is a Functional Registered Dietitian and Certified Personal Trainer at the Natural Wellness Corner! She earned her Bachelor of Science degree in Health Science and Nutrition from Merrimack College, North Andover, MA and her Master of Nutrition and Health Policy from Simmons University, Boston, MA. Emily has experience with a wide range of patients, from general nutrition guidance to more chronic conditions. Her approach to health and nutrition is patient-centered and holistic. She aims to help her patients feel well while still enjoying all the things that they love about life and food!

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