Are school holidays the same across the country?

No — most countries set them region by region, so each region is listed separately.

Why are some years missing?

School calendars are published progressively; future years are added as official sources release them.

LV · school calendar

Official school break dates for Latvia by region, with one-click calendar subscriptions.

Region	Break	Dates	Days
Nationwide	Winter Holidays	23 Dec – 5 Jan 2025	14
Nationwide	Spring Holidays	10–16 Mar 2025	7
Nationwide	Summer Holidays	31 May – 31 Aug 2025	93

Are school holidays the same across the country?: No — most countries set them region by region, so each region is listed separately.
Why are some years missing?: School calendars are published progressively; future years are added as official sources release them.