Australians travelling to Europe are being urged to stay alert as major wildfires continue to spread across several countries.

France and Spain are among the hardest-hit, with hundreds of thousands of people forced to evacuate.

Extreme heat, dry conditions and strong winds are making the fires difficult to control.

Some popular tourist destinations have been evacuated, while road and transport disruptions continue.

Travellers are advised to monitor local emergency alerts and follow instructions from authorities.

Australian officials are encouraging visitors to review travel advice before and during their trips.

The wildfire crisis is expected to remain a risk as Europe faces ongoing extreme summer weather.