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    Atopic dermatitis: The effects of climate and season on eczema

    Updated on November 27, 2025
    advice_climat_slider_edcc1571-7fe3-4915-9aff-eb238fd380be - Mustela Hong Kong - 1
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    Co-authored with dermatologist Dr. Clarence De BELILOVSKY, a member of the Mustela expert circle.

    Climate and season: Do they affect atopic dermatitis?

    Climate may affect the appearance and frequency of atopic dermatitis in babies.

    To understand the extent of the impact, a simple observation is needed: atopic skin is particularly susceptible to dryness, sweating, or contact with allergens (see our atopic skin feature). Wind, due to its drying effect, can worsen atopic skin, but humid or mild climates are not ideal either, although humid climates help retain skin moisture, while mild climates avoid excessive heat.

    Preventing atopic dermatitis flare-ups in each season

    Each season has its advantages and disadvantages.

    • Spring 's advantages: pleasantly mild temperatures. Unfortunately, it's also pollen season and lawn mowing time. While the smell of mowing is enjoyable, it can irritate the skin. Please note:

    - Reduce or shorten children's outdoor activities to avoid prolonged exposure to pollen (if children are allergic to pollen).
    For the same reason, avoid hanging children's clothes outdoors to dry.
    - Choose long pants or long-sleeved T-shirts to protect your child's legs and arms from potential irritation.

    Summer sunshine is good news for your skin! In fact, sunlight can be beneficial for atopic dermatitis, which is related to the principle of phototherapy: studies have found that areas with higher UV indices have fewer atopic dermatitis cases. However, be careful of sunburn and heatstroke . Please be sure to:

    - Uses a fragrance-free, high-protection sunscreen specifically designed for babies and young children, with a high SPF suitable for atopic skin. Even in the city, the face, arms, and calves may be exposed to sunlight.
    - Limit outdoor activities during peak sunlight hours.

    - Choose activities that won't make your child sweat excessively . 1

    - Apply moisturizer as needed.

    • Then comes autumn . The high temperatures have passed, the cold hasn't arrived yet, and pollen is no longer a problem. There's nothing particularly special to note: enjoy this pleasant season to the fullest!

    Winter has arrived. Although cold, it is relatively calm. However:

    -Cold air : In severe cold, just like in high temperatures, it can cause skin to dry out.
    - To protect against the cold, we often wear too many clothes, which can lead to sweating and itching !
    Children certainly need to wear a jacket, but you can also try layering (such as a vest) to help them adjust to temperature changes when they arrive at daycare or nanny's house (see "What should atopic dermatitis wear?").
    Dry air can also cause dry skin, whether you are outdoors or indoors (when the heating is too strong).
    Winter is not the enemy, but it requires the most attention. However, moisturizing care specifically designed for infants and young children is always the best defense for their skin .
    Finally, regional differences must be considered. In fact, summers in the south and the north are not the same.

    Please refer to "Swimming, Sports, and Play: Which Activities are Suitable for Children with Atopic Skin?"