International Mountain Day

International Mountain Day is observed next on Thursday, December 11th, 2025 (362 days from today).

• How many days until International Mountain Day?

Observed

Dates

Monday, December 11th, 2023

Wednesday, December 11th, 2024

Thursday, December 11th, 2025

Friday, December 11th, 2026

Saturday, December 11th, 2027

Founded by

United Nations General Assembly on December 20th, 2002

Hashtags

#InternationalMountainDay

#MountainDay

Sources

undocs.org

www.fao.org

www.un.org

Also on Thursday, December 11th, 2025