Extreme Heat and Pregnancy: Staying Safe During Melbourne Heatwaves
With Melbourne experiencing extreme temperatures — including days reaching 40°C and above — pregnancy can feel significantly more challenging. Heat places extra stress on the body, and during pregnancy this can increase discomfort and, in some cases, health risks.
At Dr Stephen Cole Obstetrics, we often receive questions from patients about how to stay safe during heatwaves. Below are practical, evidence‑based tips to help you care for yourself and your baby during periods of extreme heat.
Why Extreme Heat Matters in Pregnancy
During pregnancy, your body works harder to regulate temperature. Increased blood volume, hormonal changes, and a higher metabolic rate can make you more prone to:
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Dehydration
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Dizziness or fainting
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Heat exhaustion
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Swelling of hands, feet, and ankles
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Headaches
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Reduced energy levels
In severe cases, overheating and dehydration may contribute to reduced placental blood flow or reduced fetal movements, which is why prevention and early action are important.
Tips for Coping With Extreme Heat While Pregnant
💧 Prioritise Hydration
Drink water regularly throughout the day — even if you don’t feel thirsty. Keep a bottle with you at all times. Electrolyte drinks can be helpful if you are sweating heavily, but water should remain your main fluid.
🏠 Stay Indoors and Cool
Remain indoors during the hottest parts of the day (generally late morning to early evening). Use air‑conditioning or fans where possible. Cool showers, damp cloths on the neck, and resting in shaded areas can also help regulate body temperature.
👕 Dress for the Heat
Wear loose‑fitting, light‑coloured clothing made from breathable fabrics such as cotton or linen. Comfortable footwear can also help reduce swelling.
🌞 Limit Outdoor Activity
Avoid unnecessary outings during extreme heat. If you must go outside, do so early in the morning or later in the evening, wear sunscreen, and take frequent breaks.
🛌 Rest and Slow Down
Heat increases fatigue during pregnancy. Listen to your body, rest when needed, and avoid overexertion. This is particularly important in the third trimester.
When to Seek Medical Advice
Please seek medical advice urgently if you experience:
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Persistent dizziness or fainting
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Severe headache
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Nausea or vomiting not settling
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Reduced or changed baby movements
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Signs of dehydration (very dark urine, minimal urination)
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Feeling generally unwell or overheated
Always trust your instincts — if something doesn’t feel right, it’s best to be assessed.
A Message From Dr Stephen Cole
Pregnancy already places extra demands on your body, and extreme heat can amplify this. On very hot days, it’s important to be kind to yourself, adjust expectations, and focus on rest, hydration, and cooling.
If you have concerns at any stage of your pregnancy — particularly during heatwaves — please don’t hesitate to contact our team.
Your wellbeing and your baby’s safety are our priority.