Inflammatory Bowel Disease Weather Forecast for San Francisco, CA
Tuesday, August 11 · updated throughout the day · scores run 0–100, higher is a kinder day
Good
A good day — weather should cooperate for most people with Inflammatory Bowel Disease.
5-day outlook
Today
76
Good
Wed
66
Good
Thu
72
Good
Fri
70
Good
Sat
70
Good
How weather affects inflammatory bowel disease
Not every weather factor hits every condition the same way. These are the inputs our Inflammatory Bowel Disease scoring model weighs most heavily — and in San Francisco (West Coast), they interact with the local climate pattern: Seattle, San Francisco, and Los Angeles — Pacific coast weather trends and body-forecast scores.
Temperature
25% of scoreBoth cold stress and excessive heat trigger IBD flares. Cold increases intestinal permeability, while heat causes dehydration that concentrates bile acids and irritates the gut lining.
Air quality
22% of scoreAirborne pollutants are increasingly linked to intestinal inflammation and IBD flare risk. Particulate matter triggers immune responses in the gut lining.
Humidity
18% of scoreLow humidity increases dehydration risk which worsens diarrhea-related fluid loss. High humidity promotes bacterial and mold growth that can trigger immune responses.
Barometric pressure changes
15% of scoreBarometric pressure shifts correlate with changes in GI motility and abdominal pain, likely through autonomic nervous system effects on gut function.
Daily temperature swings
12% of scoreLarge temperature swings stress the autonomic nervous system, disrupting gut motility and increasing the likelihood of cramping and urgency.
This forecast uses San Francisco's weather. Yours should use your street's.
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Get Your Personal ForecastInflammatory Bowel Disease forecasts in other cities
- Seattle, WA
- Los Angeles, CA
- Phoenix, AZ
- Albuquerque, NM
- Boise, ID
- Denver, CO
- Minneapolis, MN
- Des Moines, IA
- Omaha, NE
- Wichita, KS
- Tulsa, OK
- Dallas, TX
- Houston, TX
- Chicago, IL
- Atlanta, GA
- Miami, FL
- New York, NY
- Boston, MA
- Washington, DC
- Detroit, MI
- San Diego, CA
- Tampa, FL
- Baltimore, MD
- St. Louis, MO
- Charlotte, NC
- Orlando, FL
- San Antonio, TX
- Portland, OR
- Sacramento, CA
- Pittsburgh, PA
- Las Vegas, NV
- Austin, TX
- Cincinnati, OH
- Kansas City, MO
- Columbus, OH
- Cleveland, OH
- Indianapolis, IN
- San Jose, CA
- Nashville, TN
- Virginia Beach, VA
- Providence, RI
- Milwaukee, WI
- Jacksonville, FL
- Oklahoma City, OK
- Raleigh, NC
- Memphis, TN
- Richmond, VA
- Louisville, KY
- New Orleans, LA
- Salt Lake City, UT
- Hartford, CT
- Buffalo, NY
- Birmingham, AL
- Rochester, NY
Other conditions in San Francisco
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- Osteoarthritis forecast for San Francisco
- Asthma forecast for San Francisco
- Peripheral Neuropathy forecast for San Francisco
- COPD forecast for San Francisco
- Long COVID forecast for San Francisco
- Psoriasis forecast for San Francisco
- Endometriosis forecast for San Francisco
Research behind the Inflammatory Bowel Disease model
- Ananthakrishnan AN, et al. 'Environmental triggers in IBD: a review of progress and evidence.' American Journal of Gastroenterology. 2011;106(4):574-588.
- Kaplan GG, et al. 'The inflammatory bowel diseases and ambient air pollution.' Gastroenterology. 2009;137(5):1723-1730.
- Elten M, et al. 'Ambient air pollution and the risk of pediatric-onset inflammatory bowel disease.' Inflammatory Bowel Diseases. 2020;26(5):641-652.
Felt That is not a medical service. Forecast scores describe weather conditions associated with symptom changes in published research and community-reported patterns — they are not medical advice, diagnosis, or treatment. Individual responses to weather vary widely. Always consult your healthcare provider about managing your condition.