Psoriasis 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 Psoriasis.
5-day outlook
Today
68
Good
Wed
61
Manageable
Thu
61
Manageable
Fri
61
Manageable
Sat
61
Manageable
How weather affects psoriasis
Not every weather factor hits every condition the same way. These are the inputs our Psoriasis 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.
Humidity
30% of scoreLow humidity dries skin and disrupts the skin barrier, triggering psoriasis flares; moderate humidity keeps plaques hydrated.
UV exposure
30% of scoreModerate UV exposure (especially UVB) is therapeutic for psoriasis, slowing keratinocyte proliferation, but sunburn can trigger the Koebner response.
Temperature
15% of scoreCold weather worsens psoriasis through skin drying and reduced UV exposure; warm weather generally improves symptoms.
Air quality
15% of scoreAir pollutants can trigger oxidative stress in the skin and exacerbate inflammatory pathways involved in psoriasis.
Wind
10% of scoreWind accelerates skin moisture loss and can carry irritants that aggravate exposed psoriasis plaques.
This forecast uses San Francisco's weather. Yours should use your street's.
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Get Your Personal ForecastPsoriasis 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
- Fibromyalgia forecast for San Francisco
- Migraine forecast for San Francisco
- 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
- Endometriosis forecast for San Francisco
- Inflammatory Bowel Disease forecast for San Francisco
Research behind the Psoriasis model
- Balato N, et al. 'Effect of weather and environmental factors on the clinical course of psoriasis.' Occupational and Environmental Medicine. 2013;70(8):600. (Letter)
- Jensen P, et al. 'Psoriasis and seasonal variation: a systematic review on reports from Northern and Central Europe.' Skin Research and Technology. 2022;28(1):180-186.
- Wacker M, Holick MF. 'Sunlight and vitamin D: a global perspective for health.' Dermato-Endocrinology. 2013;5(1):51-108.
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.