Is it safe to drink tap water?

No. Never drink tap water in Vietnam. Stick to bottled water from reputable brands like La Vie or Aquafina, and ensure the seal is intact.

How do I know if I'm suffering from heat exhaustion?

Common signs include heavy sweating, rapid pulse, dizziness, nausea, and cold, clammy skin. If these occur, get out of the sun and cool down immediately.

Does the humidity make mosquito-borne illnesses worse?

Yes. Mosquitoes thrive in humid environments. Use a repellent containing at least 20% DEET or Picaridin, especially during dawn and dusk.

Staying Healthy and Hydrated in Vietnam's Humidity

Combat the heat by drinking at least 3 liters of water daily and timing your outdoor activities to avoid the 12:00 PM to 3:00 PM peak sun. Prioritize electrolyte replacement over plain water to prevent heat exhaustion.

Acclimatize gradually. Spend the first 48 hours limiting intense physical exertion. Your body needs time to adjust to the high humidity levels, which often stay above 80%.
Use electrolyte tablets. Sweating profusely depletes salt faster than water alone can replenish. Carry effervescent electrolyte tablets and add one to your water bottle twice a day.
Master the timing. Do your sightseeing between 7:00 AM and 11:00 AM. Retreat to an air-conditioned cafe or your hotel during the mid-afternoon heat, then resume activities after 4:00 PM.
Select your clothing carefully. Wear loose-fitting, light-colored linen or moisture-wicking synthetic fabrics. Cotton holds moisture against your skin and prevents proper cooling.
Monitor your cooling. If you stop sweating suddenly or feel dizzy, find a shaded, breezy area immediately and consume a sugary, cold drink to stabilize your blood sugar and temperature.

Is it safe to drink tap water?: No. Never drink tap water in Vietnam. Stick to bottled water from reputable brands like La Vie or Aquafina, and ensure the seal is intact.
How do I know if I'm suffering from heat exhaustion?: Common signs include heavy sweating, rapid pulse, dizziness, nausea, and cold, clammy skin. If these occur, get out of the sun and cool down immediately.
Does the humidity make mosquito-borne illnesses worse?: Yes. Mosquitoes thrive in humid environments. Use a repellent containing at least 20% DEET or Picaridin, especially during dawn and dusk.