Heatwaves and Pregnancy: How to Stay Cool, Safe, and Comfortable This Summer

Heatwaves and Pregnancy: How to Stay Cool, Safe, and Comfortable This Summer


By Yasmin Owusu | Mini Tiny Big Blog | July 2025

As the UK faces another sweltering summer, expectant mums may be feeling the heat more than most and for good reason. Pregnancy raises your core temperature and increases the body’s workload, making you more vulnerable to overheating, dehydration and even heat exhaustion.

So, how can you stay safe and comfortable during a heatwave?

We’ve rounded up expert-backed advice from the NHS and National Childbirth Trust (NCT) , along with a few clever product tips to help you manage the summer months, bump and all.

Why heat affects pregnant women more

Pregnancy increases blood volume and metabolic rate, meaning your body is already working overtime. In high temperatures, this can lead to:

  • Swollen feet and hands
  • Fatigue
  • Dizziness
  • Headaches
  • Dehydration
  • Risk of heat exhaustion or heatstroke

According to the NHS, it’s crucial to rest, hydrate, and stay out of the sun between 11am and 3pm during heat alerts.

1. Hydration is your best friend

Drink at least 2 litres of water a day. If you're experiencing morning sickness or fatigue, it can be hard to keep fluids down but it’s essential.         

 Mini Tiny Big Tip:
Try our Organic Morning Sickness Tea, gentle and hydrating; perfect for hot days.

2. Soothe hot, swollen limbs with magnesium

Pregnancy-related swelling can worsen in heat. Applying a magnesium-rich cream to your legs, ankles or back not only helps reduce fluid retention, but also eases restless legs and muscle cramps.

Featured Product:
Magnesium Body Cream for Pregnancy – Gentle on sensitive skin, fast-absorbing, and calming.

3. Use cooling tools on the go

When you're out and about or struggling to sleep at night, small cooling hacks can make a huge difference.

  • Carry a cooling facial mist or mini handheld fan
  • Keep a cold compress or gel pack in the fridge
  • Try an aromatherapy nasal inhaler for fresh, calming relief

Mini Tiny Big Favourite:
Aromatherapy Labour Support Nasal Inhaler – A refreshing and calming blend that works beautifully on sticky summer commutes or hot hospital wards.

4. Elevate those feet

Swollen ankles? You're not alone. The NCT recommends keeping your feet raised when possible and avoiding standing for long periods. Gentle movement (like walking) can help circulation too.

5. Dress smart and shade up

Choose breathable fabrics like cotton or bamboo, wear loose-fitting clothes, and don’t forget your wide-brimmed hat and SPF.

Need to nap during the day? Keep blinds drawn and use a fan or cooling pillow for extra relief.

When to call your midwife

Watch out for:

  • Persistent dizziness
  • Very dark urine or little urination
  • Confusion
  • Palpitations
  • Fainting

If you experience any of these, seek immediate medical attention.

Final thoughts

Pregnancy in summer can be intense but with the right support, it’s completely manageable. Stay cool, stay hydrated, and lean on tools that make life easier.

Explore our full Pregnancy Essentials Collection — hand-picked to support you from bump to baby.

 Sources:

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