Daily Hydration Guide for San Francisco
Personalized water intake recommendations based on today's weather conditions
Very humid conditions (85%) in San Francisco. This may affect comfort levels.
Morning boost: Start with 500–700ml within the first hour of waking to kickstart hydration after overnight fasting.
Steady intake: Sip consistently throughout the day rather than drinking large amounts at once. Aim for 150-200ml every 30-45 minutes.
Pre-activity: If exercising or spending time outdoors in San Francisco, drink an additional 200-300ml 15-20 minutes beforehand.
Electrolyte support: Today's conditions in San Francisco warrant electrolyte replacement. Consider adding ~0.4L of electrolyte drinks throughout the day.
How much water should I drink today in San Francisco?
Based on current weather conditions, about 2.8 L for a 70 kg adult. Use our personalized calculator for your specific needs.
Do I need electrolytes in San Francisco today?
Yes, today's conditions warrant electrolyte replacement. Add ~0.4 L of electrolyte drinks.
Why does San Francisco require this amount?
Factors include feels-like temperature 17.6°C, humidity 85%, UV index 3.6, and elevation 18m. These conditions affect your body's cooling needs.
How does San Francisco's climate affect hydration?
Very humid conditions (85%) in San Francisco. This may affect comfort levels.
Explore hydration guides for cities within 1000km of San Francisco
Last updated: 10/26/2025 • Page specific to San Francisco, United States