Summer brings sunshine, and often a sore, red nappy area. Heat and humidity keep skin warm and damp under a nappy, which is the perfect setting for irritation and yeast. Preventing diaper rash in hot weather comes down to keeping skin cool, clean and dry. Here is how.
Quick answer: preventing diaper rash in hot weather
- Change more often, every 2 hours or as soon as the nappy is wet.
- Give nappy-free time every day on a towel in a shady, cool spot.
- Use a thin barrier cream with zinc oxide or petroleum jelly.
- Choose breathable clothing and avoid plastic pants over nappies.
Free printable: track feeds and wet and dirty diapers with our Feeding & Diaper Log. Handy to bring to checkups with your pediatrician.
Why rash is more common in summer
- sweat and humidity keep skin damp
- heat increases friction and chafing
- warm, moist skin lets yeast grow more easily
- heat rash can appear alongside nappy rash
Prevention tips
- Change promptly, including straight after naps and in the night if your baby wakes wet.
- Clean gently with water or fragrance-free wipes, and pat dry.
- Let skin air-dry for a few minutes before putting on a new nappy.
- Apply a thin layer of barrier cream; thick layers trap heat.
- Do not fasten nappies too tightly.
- Dress your baby lightly in cotton, or just a nappy and vest in the heat.
- Keep your baby hydrated with extra feeds.
See heat rash in babies and diaper rash prevention and treatment.
Swimming and travel
- change swim nappies straight after swimming, and rinse the skin with fresh water
- pack extra nappies and a portable mat on hot days. See travel diapering essentials
- take breaks from the car seat, which gets hot and sweaty
When to talk to your doctor
- a bright red rash in the skin folds with small spots at the edges (possible yeast). See fungal rashes in babies
- blisters, open sores, pus or bleeding
- a rash that does not improve after 2 to 3 days of care
- fever, or your baby seems unwell or is drinking less
Frequently asked questions
Is powder helpful in hot weather?
Talc is not recommended, as it can be breathed in. Letting skin air-dry works better.
Are cloth nappies better in summer?
Either works if changed often. Cloth needs changing more frequently.
Should I use more cream in the heat?
A thin layer is enough. Thick layers can trap heat and moisture.
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Sources
- NHS: Nappy rash
- American Academy of Pediatrics, HealthyChildren.org: Diaper Rash
- American Academy of Dermatology: How to treat diaper rash
This guide is general information, not medical advice. If you are worried about your baby’s skin, talk to your doctor or pharmacist.