9th September – Rosh Hashanah begins at sundown
11th September – 911 Remembrance
18th September – Budget Day (Prinsjesdag)
21st September – International Peace Day (UN)
22nd September – Autumnal Equinox
22nd September – Oktoberfest begins in Germany
23rd September – Sukkot begins at sundown
Primary Education & Secondary Education Schools
Basisonderwijs & Voortgezet onderwijs
North Netherlands
21st July – 2nd September
Week 30 – 35
Mid-Netherlands
14th July – 26th August
Week 29 – 34
South Netherlands
7th July – 19th August
Week 28 – 33
Some schools do run different vacation times, so be sure to double check with your school for exact dates.