Know when schools are closed, how many pupils are affected, and what that means for demand in your area — from £1,499 per year.
School dates are set independently by each of the 208 Local Education Authorities. Half term in Manchester can fall a fortnight before half term in London. A national promotion planned around 'the school holidays' is planned around the wrong signal.
Each LEA sets its own dates independently. A nationally planned promotion is wrong for a significant share of your catchment.
October half term moves. Easter moves. Without structured tracking, revenue teams discover changes too late to adjust pricing and planning decisions.
Even teams with calendar access struggle to turn dates into demand signals. Semestern pre-computes the impact layer so you don't have to.
Not sure where to start?
Ask us a question →Select the level that matches your team — structured calendar data, pre-calculated demand signals, or the full population intelligence layer. We configure your API key and onboard you directly.
Query the REST API in JSON. Interactive Swagger documentation at /uk/docs. Full dataset, no sampling.
Connect to your forecasting model, BI tool, or data pipeline. Current year data from day one. Following year published automatically each May.
Plan promotions around the holidays that actually affect your stores, not the national average.
Forecast footfall by the pupil population in your catchment area, weighted to your specific geography.
Pinpoint exactly when the school-age population in each region is free to travel, by LEA origin.
Build smarter leave and scheduling models using granular term data and INSET day alerts.
A 28-year signal for consumer behaviour and transaction volume models at regional granularity.
28 years of consistent data. Train models. Backtest strategies. Find patterns at LEA level.
The dataset covers all 208 Local Education Authorities across all four UK nations. Every LEA sets its own school dates independently — Semestern structures all 208 into a single consistent dataset, refreshed quarterly with new school year data published each May.
LEA count: DfE School Census 2024–25 · Welsh Government · Scottish Government · DE NI
Pupil populations from Semestern’s UK LEA dataset, sourced directly from DfE School Census, StatsWales, Scottish Government Statistics, and Department of Education NI.
Calendar tells you when. Intelligence tells you everything else. All tiers billed annually by invoice. Prices exclude VAT.
Request access and we will send sample data for your region within one business day.
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Reach out to discuss which tier fits your use case. All subscriptions are invoiced annually — no card required. We respond within one business day.
Tell us your use case and which regions matter to your team. We'll respond with a tailored proposal within one business day.
info@semestern.com →We'll walk you through the API live — real data, real endpoints, real responses for your geography.
Schedule a call →