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Term datesSir Joseph Williamson's Mathematical School

Secondary • Rochester • ME1 3ELLocal authority: Medway

These are Sir Joseph Williamson's Mathematical School's own term dates for 2026/27 and 2027/28 — read from sjwms.org.uk. The school hasn't published 2025/26 yet, so those years are filled from Medway council's calendar: term dates and holidays, but not the school's own training days, usually five a year. Expect a few extra closed days. We re-check every few days and swap in the school's dates the moment they appear.

How we read these
  1. 1Opened the term-dates page on sjwms.org.uk.
  2. 2Read the dates off the page with our language model.
  3. 3Kept 32 dates of the school's own for 26/27, 27/28; 25/26 is Medway council's dates until the school publishes its own — and we re-check every few days, so they stay right on their own.

See the full trace — every date, back to the sentence it came from →

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Summer Holiday now

Back to school Tue 1 Septin 5 days

First day off after that: Autumn Break · Mon 19 Oct – Fri 30 Oct in 7½ wks

Days off · 2025/2026

Today

Summer Holiday

back to school Tue 1 Sept

Days off · 2026/2027

Today

INSET Day

INSET Day

in school · 7 weeks

Autumn Break

half term

back to school Mon 2 Nov

in school · 7 weeks · last day Fri 18 Dec

Christmas Holiday

back to school Tue 5 Jan

INSET Day

in school · 5½ weeks

INSET Day

Winter Break

half term

back to school Mon 22 Feb

in school · 5 weeks · last day Thu 25 Mar

Easter Holiday

back to school Mon 12 Apr

in school · 3 weeks

Early May Bank Holiday

in school · 4 weeks

Holiday

Spring Break

half term

back to school Mon 7 Jun

in school · 4 weeks

School Closed

INSET
in school · 2½ weeks · last day Wed 21 Jul

Summer Holiday

back to school Fri 3 Sept

Days off · 2027/2028

INSET Day

INSET Day

in school · 6 weeks

Autumn Break

half term

back to school Mon 1 Nov

in school · 7 weeks · last day Fri 17 Dec

Christmas Holiday

back to school Wed 5 Jan

INSET Day

in school · 5½ weeks

Winter Break

half term

back to school Mon 21 Feb

in school · 6 weeks · last day Fri 31 Mar

Easter Holiday

back to school Tue 18 Apr

in school · 2 weeks

Early May Bank Holiday

in school · 4 weeks

Holiday

Spring Break

half term

back to school Mon 5 Jun

in school · 4 weeks

INSET Day

in school · 1 week

School Closed

INSET
in school · 2 weeks · last day Fri 21 Jul

Summer Holiday

Sir Joseph Williamson's Mathematical School term dates at a glance

When does Sir Joseph Williamson's Mathematical School go back?
Sir Joseph Williamson's Mathematical School returns on Tuesday, 1 September 2026.
When does Sir Joseph Williamson's Mathematical School break up for Summer?
Sir Joseph Williamson's Mathematical School breaks up on Tuesday, 21 July 2026, the Summer Holiday runs from Wednesday, 22 July 2026 to Monday, 31 August 2026 and pupils return on Tuesday, 1 September 2026.
When does Sir Joseph Williamson's Mathematical School break up for Autumn?
Sir Joseph Williamson's Mathematical School breaks up on Friday, 16 October 2026, the Autumn Break runs from Monday, 19 October 2026 to Friday, 30 October 2026 and pupils return on Monday, 2 November 2026.
When does Sir Joseph Williamson's Mathematical School break up for Christmas?
Sir Joseph Williamson's Mathematical School breaks up on Friday, 18 December 2026, the Christmas Holiday runs from Monday, 21 December 2026 to Friday, 1 January 2027 and pupils return on Tuesday, 5 January 2027.

Checked against the school's own page on .