On 21 October 2026, the World Health Organization (WHO), the World Meteorological Organization, UNICEF and the UN Population Fund launched the first-ever set of indicators to help countries track how extreme heat affects pregnant women, newborns and children.
What the data shows
- Exposure to extreme heat is linked to a 26% increase in the odds of preterm birth.
- In 2024, babies under one year old experienced 389% more heatwave days than in the 1986–2005 baseline period.
- An estimated 1.5 billion children worldwide are exposed to heatwaves that are becoming more frequent, longer or more severe.
What is changing
The report recommends that countries monitor preterm births, stillbirths, low birthweight, high blood pressure in pregnancy, child deaths and health-facility visits during extreme heat. The aim is to help health systems prepare in time and warn families.
What it means for you
Summers in Europe are getting hotter, so it helps to have your own heat plan:
- Follow heat warnings for your area.
- Keep your baby in the shade and out of direct sun during the hottest hours.
- Never leave a baby or child in a parked car.
- Keep the room where your baby sleeps aired and cool.
- If you are pregnant, ask your doctor or midwife how to stay safe on hot days.
You will find more practical tips in our Baby Care & Health section.
Source: World Health Organization (WHO), 21 October 2026
This news item is for information only and does not replace medical advice. For questions about your health or your baby’s health, please speak to your paediatrician, midwife, obstetrician or GP.
More from this section
Your baby, week by week
Once a week: what's coming up, one useful tip and nothing extra.
