Temperatures across NSW and other parts of the country are expected to soar over the next few days, with Sydney predicted to reach a high of 43 degrees today (January 8).
These extreme heats can be dangerous to health and lead to 'life threatening situations'.
Acting chief superintendent of the Ambulance Service of NSW, Ian Johns, says that it's important not to underestimate the heat.
NSW Health said that now is the time to prepare an Extreme Weather Plan as sunburn, heat exposure and dehydration can lead to heat stroke.
People need to remember some messages when preparing their plan.
1. Review activity
Schedule your plans around the hottest part of the day, getting outside work done before the heat is at its peak.
2. Stay hydrated
Drink "regular, small amounts of water all day", consuming more if you have to undertake heavy activity or venture outside.
Try to limit your intake of coffee, tea and alcohol as these can increase dehydration.
You can also take another step towards looking after your health and wellbeing by getting set up with health insurance in 2013.
Private health cover can help you to receive the appropriate medical treatment and care for your needs.