First weekday
Monday
Last weekday
Tuesday
September 2025 in Slovenia has 30 days, begins on Monday, ends on Tuesday, and includes 6 local holidays.
Online calendar
View the full September 2025 calendar for Slovenia with local holidays, month facts, and quick links to nearby dates.
Slovenia time
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Slovenia September 2025 Calendar
Apple September Event
Incorporation of Primorska into the Motherland Day
September Equinox
Slovenian Sports Day
Tokyo Game Show
Steam Autumn Sale
First weekday
Monday
Last weekday
Tuesday
September 2025 in Slovenia has 30 days, begins on Monday, ends on Tuesday, and includes 6 local holidays.