Reading time: 7 minutes
Immediate response
If you experience weakness and dizziness associated with low blood pressure during the summer, stop your activity, sit or lie down in a cool place, and drink water gradually, if you are alert and can swallow.
Water-rich foods, such as melon, watermelon, and fresh vegetables, can help you stay hydrated. However, no single food is guaranteed to raise blood pressure.
If the episodes repeat, measure your blood pressure and talk to your doctor.
Attention: Chest pain, severe difficulty breathing, sudden confusion, or loss of consciousness requires immediate assistance. Call 911.
What you will learn:
Because blood pressure can drop during the summer.
What foods to choose on hot days.
What to drink to stay well hydrated.
How to recognize the symptoms of hypotension.
What to do immediately when dizziness appears.
When to see a doctor.
Index
It's three in the afternoon.
You've just finished shopping or you're returning home after a day at work.
You get up from your chair, take a few steps and suddenly feel light-headed.
Your legs feel weaker than usual and you feel the need to sit down.
It could be an episode of low blood pressure, but it is not possible to determine this from the symptoms alone.
During the summer, the heat promotes the dilation of blood vessels and increases fluid loss through sweat.
In some people, these factors may contribute to a reduction in blood pressure.
Understanding what to eat, how much to drink, and how to behave can help you better manage hot days.
Why does blood pressure drop in summer?
When the outside temperature rises, the body tries to lose heat.
To do this, it mainly uses two mechanisms:
Dilation of superficial blood vessels.
Sweat production.
Dilation of the vessels can help reduce blood pressure.
Sweating, on the other hand, causes a loss of water and mineral salts.
If the losses are significant and are not compensated, the volume of circulating liquids may decrease.
This can lead to dizziness and weakness, especially when standing up quickly.
Who is most exposed?
Some people may be more vulnerable:
Elderly people.
People who work outdoors.
Athletes during intense activities.
Those taking medications that affect blood pressure or fluid balance.
People with certain heart or metabolic conditions.
However, it should not be assumed that all summer dizziness is due to low blood pressure.
What are the values of low blood pressure?
Generally, we speak of low blood pressure, or hypotension, when the values are lower than 90/60 mmHg.
However, value alone does not tell the whole story.
A person can habitually have a blood pressure of 90/60 mmHg without experiencing any discomfort.
Another may experience dizziness when her blood pressure drops rapidly from its usual values.
For this reason it is important to consider:
The actual measurement.
The symptoms present.
The general conditions.
Any medications taken.
The frequency of episodes.
If your blood pressure is often low and accompanied by symptoms, it's a good idea to talk to your doctor.
How to recognize the symptoms of low blood pressure
Symptoms can vary.
Dizziness when standing up
One of the most common complaints is the feeling of instability when moving from a sitting or lying position to a standing position.
It may be associated with orthostatic hypotension, i.e. a reduction in blood pressure during changes in position.
Weakness
The person may suddenly feel deprived of energy.
Blurred vision
During some episodes, temporary vision changes may appear.
Feeling faint
If there is a significant drop in blood pressure, you may feel like you are losing consciousness.
Tiredness and difficulty concentrating
They may accompany episodes of low blood pressure, but they are not very specific symptoms.
Significant fluid loss can contribute to dizziness. To recognize other possible signs, also consult our guide on Signs of dehydration you shouldn't ignore.
Low blood pressure in summer: what to eat
Nutrition can contribute to overall well-being and help you stay well hydrated during the heat.
It is important to clarify one point, however:
There are no foods that can automatically correct low blood pressure.
Choosing foods rich in water and maintaining regular meals can be helpful, especially when the heat reduces appetite.
Bananas
Bananas provide potassium and carbohydrates.
They are a convenient snack, but should not be considered a specific remedy for increasing blood pressure.
Apricots and peaches
They contain water and various nutrients.
They are perfect as a snack on summer days.
Watermelon and melon
They have a high water content.
They can contribute to daily hydration.
Dried fruit
Almonds and walnuts provide unsaturated fats and minerals.
A small portion can be included in a balanced diet.
Yogurt
Yogurt can be a simple and practical snack.
Legumes
Chickpeas, lentils, and beans provide fiber, plant-based proteins, and minerals.
They can also be used in summer salads.
Practical example of nutrition during a hot day
Here is an indicative example for an adult without particular dietary restrictions.
Moment | Example |
|---|---|
Breakfast | Yogurt, banana and a small portion of almonds |
Snack | Fresh apricots |
Lunch | Salad with chickpeas, vegetables and bread |
Snack | Watermelon or melon |
Dinner | Fish, vegetables and a source of carbohydrates |
Water should be consumed throughout the day according to personal needs.
This example does not represent a therapeutic diet.
Those with diabetes, kidney disease, or other conditions that require a specific diet should follow the advice of their healthcare professionals.
What to drink for low blood pressure in hot weather
Water is generally the main drink for maintaining good hydration.
Requirements vary depending on temperature, physical activity, and health conditions.
Useful drinks
Natural water.
Mineral water.
Cold, unsweetened herbal teas.
Other non-alcoholic beverages, taking into account the sugar content.
Fruit can contribute to fluid intake, but it does not replace the need to drink.
When are mineral salts needed?
During intense and prolonged sweating, you lose water and electrolytes, especially sodium.
In these conditions it may also be necessary to replenish salts.
For a normal summer day without significant losses, however, water and normal food are generally sufficient.
Attention: Potassium and magnesium supplements are not a universal treatment for low blood pressure. Those taking medications or suffering from kidney disease should consult their doctor or pharmacist before using them.
During prolonged physical activity or when sweating profusely, it may be helpful to consider a product to replenish electrolytes. Always check the ingredients and directions for use before purchasing.
HELPFUL TIP
Mineral salt supplement
To be evaluated in case of prolonged sweating.
Check the amount of sodium and other minerals.
It does not replace an oral rehydration solution when one is needed.
See on Amazon →
What to do immediately if you feel a drop in blood pressure
If you feel dizzy or faint:
Stop. Don't continue walking or working.
Sit or lie down. Reduce your risk of falling.
Move to a cool place, if it's safe to do so..
Drink water gradually, if you are alert and can swallow.
Avoid getting up suddenly.
If available, measure your blood pressure with a suitable device.
Do not drive while you feel dizzy or unsteady.
If symptoms do not improve
Don't assume it's just the heat.
A medical evaluation may be necessary to rule out other causes.
Contact your doctor if:
The episodes repeat themselves frequently.
Dizziness often occurs when you stand up.
The measurements are usually low and accompanied by disturbances.
Symptoms do not improve with rest and hydration.
You've started new medications and notice changes in your blood pressure.
Call 112 in the presence of:
Severe chest pain.
Severe breathing difficulty.
Loss of consciousness.
Sudden confusion.
Signs of possible heat stroke.
While waiting for help, follow the operator's instructions.
Do not give drinks to an unconscious person or someone unable to swallow.
Five mistakes to avoid during the summer
1. Drinking too little
Poor fluid intake can contribute to dehydration.
2. Staying in the sun for a long time
Prolonged exposure to heat can increase fluid loss.
3. Getting up too quickly
In those suffering from orthostatic hypotension, suddenly standing up can cause dizziness.
4. Consuming too much alcohol
Alcohol can promote dehydration and worsen feelings of dizziness.
5. Trying to increase blood pressure with salt without medical advice
Increasing salt intake is not a solution that works for everyone.
The amount of sodium must be evaluated taking into account blood pressure, medications and health conditions.
How to prevent ailments on hot days
Some tips can help:
Drink regularly as needed.
Avoid exertion during the hottest hours.
Take breaks in cool environments.
Eat balanced meals.
Get up gradually after sitting or lying down.
Pay attention to recurring symptoms.
A water bottle can help you
If you often forget to drink while working or commuting, having a water bottle on hand can be handy.
HELPFUL TIP
Thermal water bottle
Capacity of approximately one litre.
Thermal insulation to keep water cool.
Reusable and convenient to carry.
See on Amazon →
Hydration is just one aspect of daily well-being. For more practical advice, you can also read our guide. Healthy Lifestyle: 10 Habits for a Better Life.
In summary
Low blood pressure in summer can be caused by heat, dilation of blood vessels, and fluid loss.
Drinking according to your needs and choosing foods rich in water can help maintain good hydration.
Bananas, fresh fruit, yogurt, and legumes can be part of a balanced diet, but they are not specific remedies for increasing blood pressure.
If dizziness is frequent, it is important to measure your blood pressure and discuss possible causes with your doctor.
If severe symptoms occur, immediate assistance should be sought.
FAQ - Frequently Asked Questions
What is the best food for low blood pressure?
There's no single food that reliably raises blood pressure. Fruits, vegetables, and other balanced foods can contribute to good nutrition and hydration.
What to drink when your blood pressure is low and it's hot?
Water is generally the primary choice. Specific instructions may be necessary for significant fluid losses.
Does coffee help raise blood pressure?
Caffeine may cause a temporary increase in blood pressure in some people, but it is not a reliable solution for treating hypotension.
Can low blood pressure cause fainting?
Yes. A significant drop in blood pressure can cause loss of consciousness.
Should people with low blood pressure eat more salt?
Not necessarily. Any increase in salt intake should be discussed with your doctor.
Can heat lower blood pressure?
Yes. Heat can cause blood vessels to dilate and increase sweating.
Do mineral salts really help?
They can be useful in specific situations, especially when significant fluid and electrolyte loss occurs. However, they are not a universal treatment for low blood pressure.
When should you worry?
When symptoms are frequent, persistent, or accompanied by significant signs such as loss of consciousness, chest pain, or difficulty breathing.
Conclusion
During summer days, the heat can contribute to episodes of low blood pressure, especially in predisposed people.
Good hydration, rest, and some daily precautions can help prevent heat-related ailments.
Nutrition plays an important role in overall well-being, but don't expect a single food to solve your blood pressure problem.
If the episodes recur or significant symptoms appear, it is essential to contact a healthcare professional.
Want more practical tips for taking care of your well-being?
On Consutil you'll find guides dedicated to daily health, nutrition, sleep, and habits that help you live better.
Discover articles in the Health and Wellness category and visit the website:
And you, have you ever felt dizzy or faint during the summer on particularly hot days?
Italian 
English