What Is Seasonal Eczema?

Seasonal eczema refers to eczema symptoms that fluctuate with the time of year. This doesn’t mean your condition is limited to a single season—it means your eczema is exacerbated by specific environmental conditions, including:

• Dry winter air
• Hot, humid summers
• Pollen and allergens in spring or fall
• Rapid shifts in temperature

Because eczema involves a compromised skin barrier and an overactive immune system, these environmental changes can easily upset the balance and trigger flare-ups.

How Weather Affects Eczema by Season

Winter: The Driest Challenge

Cold weather is perhaps the most notorious trigger for eczema.

• Low humidity both indoors and outdoors dries out your skin
• Indoor heating can strip the air (and your skin) of moisture
• Cold wind increases skin sensitivity and irritation

The result? Dry, cracked, itchy skin that’s more prone to inflammation and infections.

Tips for winter eczema:

• Use a humidifier to maintain indoor moisture (~40–50% humidity)
• Switch to thicker creams or ointments to lock in moisture (like NellaDerm’s NellaCalm)
• Take shorter, lukewarm showers and avoid harsh soaps

Spring: Pollen and Allergens

Spring introduces blooming flowers—and airborne allergens. If you have allergic eczema (atopic dermatitis), your immune system may react to pollen the same way it does to dust mites or pet dander.

Common spring eczema triggers:

• Tree and grass pollen
• Increased UV exposure as the sun gets stronger
• Sudden weather shifts, like warm days and cold nights

Tips for spring eczema:

• Shower and change clothes after spending time outdoors
• Use HEPA air filters indoors to reduce pollen levels
• Consider talking to your doctor about antihistamines if you’re also managing allergies

Summer: Sweat and Heat

While some people find relief from eczema in the summer, others find it unbearable.

Summer brings:

• Sweat, which contains salt and can irritate broken skin
• Heat rash or miliaria, which can mimic eczema
• Increased risk of infection, especially from scratching or swimming

Tips for summer eczema:

• Choose lightweight, breathable fabrics like cotton
• Rinse off sweat with water and moisturize immediately
• Use a hydrating cleanser after swimming or sun exposure to gently cleanse without stripping oils
• Keep cool with cold compresses and drink plenty of water

Check out our blog about how to manage eczema in the summer

Fall: Fluctuations and Indoor Irritants

Autumn is a transitional season—cooler nights, indoor heating returning, and leaves starting to decay. This mix of environmental stressors can confuse your skin.

Triggers in fall:

• Sudden temperature drops
• Dust and mold spores as heating systems kick in
• Drier air reducing natural skin moisture retention

Tips for fall eczema:

• Start layering moisturizers: a light lotion followed by a heavier cream
• Keep windows closed on windy, allergen-heavy days
• Clean air vents and replace filters to minimize dust exposure

Scientific Insight: Why Seasonal Eczema Happens

A peer-reviewed article published in Science Direct explains that seasonal eczema is tied to changes in skin barrier function and immune response, which are both highly sensitive to environmental stressors like UV radiation, humidity, and allergens.

Additionally, changes in vitamin D levels, which decline in winter, may reduce the skin’s ability to produce antimicrobial peptides—leaving it more vulnerable to inflammation and infection.