Daffodil Day has been a fundraising event for the Cancer Society of New Zealand since 1990, and collectors are due to be out tomorrow.

Hundreds of people in throughout the country take to the streets every year to support Daffodil Day and help collect money for the Cancer Society.

The organisation's national body says donations go towards scientific research into the causes and treatment of all types of cancer.

The society says Daffodil Day gives hope for the 1 in 3 New Zealanders affected by cancer.