October 20, 2026 brings World Osteoporosis Day — one of fall's more delightful excuses to celebrate.

Mark March 20, 2027 for World Oral Health Day.

March 4, 2027 brings World Obesity Day during spring.

World Obesity Day is observed on March 4, 2026.

World Narcissistic Abuse Awareness Day is observed on June 1, 2027.

June carries an important message: World Narcissistic Abuse Awareness Day is June 1, 2026.

August 20, 2027 brings World Mosquito Day — one of summer's more delightful excuses to celebrate.

May 8, 2027 marks World Migratory Bird Day, right in spring.