Secondary school · Blackwood
Islwyn High School term dates
Islwyn High School breaks up for October Half Term on — back to school .
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These are Caerphilly council's standard term dates. We don't have Islwyn High School's own dates yet — most schools follow these, but some schools set their own dates and INSET (teacher training) days, so check with the school.
School holidays
October Half Term
Last day of school:
Back to school:
Christmas Holiday
Last day of school:
Back to school:
February Half Term
Last day of school:
Back to school:
Easter Holiday
Last day of school:
Back to school:
May Half Term
Last day of school:
Back to school:
Summer Holiday
Last day of school:
Return date not announced yet
Caerphilly council's standard term dates. Always double-check major plans with the school directly. Last updated .
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Where: Blackwood, Caerphilly NP12 0NU
Phase: Secondary
Pupils: 1,047
Quick answers
When does Islwyn High School break up for the October half term?
The last day of school before October Half Term is Friday, 23 October 2026. This is from Caerphilly council's standard term dates — Islwyn High School may set its own, so check with the school.
When do pupils go back to Islwyn High School?
Pupils return on Monday, 2 November 2026. INSET days can change this for individual year groups — the school's own letters are always the final word.