When the sunshine arrives, so do picnics, paddling pools and family adventures outdoors. But while warm weather can be wonderful, babies and young children can become overheated much faster than adults, their temperature regulation is underdeveloped, and they become dehydrated far more quickly — so it’s important to help them stay cool, comfortable and well hydrated during heatwaves and very hot days.
Here are some simple, practical ways families can keep little ones safe when temperatures soar.
Dress for the Weather
Loose, lightweight clothing made from natural, breathable fabrics like cotton or bamboo is best for keeping children cool. Pale colours help reflect the sun rather than absorb heat.
For babies:
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A nappy and lightweight vest may be enough indoors
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Avoid heavy blankets or thick sleepwear
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Use a lightweight sheet instead of a duvet if needed
For outdoor play:
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Wide-brimmed sun hats help protect little faces and necks
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UV-protective swimwear can be useful for paddling pools and beach days
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Keep spare clothes handy in case little ones get sweaty or uncomfortable
Keep Hydration Top of the List
Offer drinks regularly throughout the day, even if children don’t ask for them.
Good options include:
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Water
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Milk feeds for babies
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Diluted fruit juice occasionally for older children
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Water-rich snacks like watermelon, cucumber and strawberries
Breastfed babies may want to feed more often during hot weather, which is completely normal.
Create Cool Spaces Indoors
Keeping rooms shaded during the hottest part of the day can help maintain a comfortable temperature indoors.
Try:
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Closing curtains or blinds in sunny rooms
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Opening windows early morning or later evening when air is cooler
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Using fans safely and never pointing them directly at babies
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Keeping playtime in cooler downstairs rooms if possible
If bedrooms feel too warm at bedtime, a lukewarm bath can help children cool down and settle more comfortably.
Be Sun Smart
The sun is usually strongest between 11am and 3pm, so it’s best to:
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Stay in the shade during peak heat
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Plan outdoor activities for mornings or early evenings
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Apply child-friendly sunscreen regularly – over the age of 6 months
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Use pram shades carefully without covering prams completely, as trapped heat can build up quickly
A parasol or clip-on shade that still allows airflow is a safer option.
Water Play = Instant Cooling Fun
One of the easiest ways to cool little ones down is through supervised water play.
Great options include:
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Sprinklers
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Water tables
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Damp flannels or cooling mist sprays
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Bath toys in a shallow tray of water outdoors
Not only does water help regulate body temperature, but it also turns hot days into exciting sensory play opportunities. BUT! When a child feels cooler they are more likely to want to spend longer in the sun so try to intersperse these with an indoor, calm activity – like having an ice-lolly!
Signs a Child May Be Too Hot
Keep an eye out for:
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Flushed cheeks
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Sweating or clammy skin
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Tiredness or irritability
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Faster breathing
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Reduced wet nappies
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Headaches in older children
If a child seems unusually drowsy, unwell or overheated, move them somewhere cool, encourage fluids and seek medical advice if symptoms continue.
Enjoy Summer Safely
Hot weather doesn’t have to stop the fun. With a little planning, plenty of fluids and regular cool-down breaks, babies and young children can enjoy summer safely and comfortably.
Whether it’s shady garden play, splash sessions in the paddling pool or an afternoon picnic under the trees, small steps can help make warm days happy days for the whole family.
