The smoke particles have already reached high into the atmosphere, so they won't cause health problems or unusual odours. The most colourful sunset is expected on Tuesday evening.

Levels of fine particulate matter have risen in Reykjavík, likely due to smoke from Canadian wildfires, prompting health advisories for those with respiratory issues.

The fires have forced thousands of Canadians to flee their homes and sent smoke as far as Europe.

A fog-like mist in northern Iceland may be connected to forest fires in Canada, with meteorologists suspecting that diluted smoke from the fires has reached the country due to prevailing winds blowing from west to east.

Warm, dry weekend conditions in Manitoba increased wildfire behaviour across nearly all active blazes, prompting evacuations, air quality warnings and challenges for aerial suppression.