Watford Grammar School for Boys is a boys' secondary academy in Watford, Hertfordshire County Council, teaching 1,590 pupils aged 11 to 18. Ofsted graded achievement as Exceptional at its most recent inspection in April 2026. In 2024–2025, GCSE Attainment 8 was 68.9 (England 46.1). The 2025–2026 school year runs from 1 September 2025 to 17 July 2026.

Ofsted inspection

The latest published Ofsted judgement for Watford Grammar School for Boys.

Latest inspection
2025 framework Graded by evaluation area
AchievementExceptional
Curriculum & teachingExceptional
Attendance & behaviourStrong standard
Personal development & wellbeingExceptional
InclusionExceptional
Leadership & governanceExceptional
Post-16 provisionExceptional
Safeguarding Met
S5 Inspection · Inspected 14 Apr 2026 · Published 7 Jun 2026
Read full Ofsted report ↗

Scale: Exceptional Strong standard Expected standard Needs attention Urgent improvement

Term dates & holidays 2025–2026

Autumn, spring and summer terms, half-terms, INSET days and bank holidays for Watford Grammar School for Boys.

Watford Grammar School for Boys term dates calendar 2025–2026
Official term-dates calendar · 2025–2026 · source

Interactive Calendar

September 2025
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
  • 1 First Day of Term
  • 1 Inset Day
  • 25 Inset Day
October 2025
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
  • 24–31 Autumn Half Term
November 2025
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
  • 1–3 Autumn Half Term
  • 18 Inset Day
December 2025
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
  • 19 Last Day of Autumn Term
  • 20–31 Christmas Holiday
  • 25 Christmas Day (Bank Holiday)
  • 26 Boxing Day (Bank Holiday)
January 2026
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
  • 1–4 Christmas Holiday
  • 1 New Year's Day (Bank Holiday)
  • 5 First Day of Spring Term
February 2026
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
  • 14–22 Spring Half Term
March 2026
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
  • 27 Last Day of Spring Term
  • 28–31 Easter Holiday
April 2026
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
  • 1–12 Easter Holiday
  • 3 Good Friday (Bank Holiday)
  • 6 Easter Monday (Bank Holiday)
  • 13 First Day of Summer Term
May 2026
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
  • 4 Early May Bank Holiday
  • 23–31 Summer Half Term
  • 25 Spring Bank Holiday
June 2026
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
  • 9 Inset Day
July 2026
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
  • 17 Last Day of Summer Term
  • 18–31 Summer Holiday
August 2026
MonTueWedThuFriSatSun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
  • 1–30 Summer Holiday
  • 31 Summer Bank Holiday

Key dates (2025–2026)

  • First Day of Term Sep 1, 2025 Term
  • Inset Day Sep 1, 2025 Inset Day
  • Inset Day Sep 25, 2025 Inset Day
  • Inset Day Nov 18, 2025 Inset Day
  • Autumn Half Term Oct 24 - Nov 3, 2025 Holiday
  • Last Day of Autumn Term Dec 19, 2025 Term
  • Christmas Holiday Dec 20, 2025 - Jan 4, 2026 Holiday
  • First Day of Spring Term Jan 5, 2026 Term
  • Spring Half Term Feb 14 - Feb 22, 2026 Holiday
  • Last Day of Spring Term Mar 27, 2026 Term
  • Easter Holiday Mar 28 - Apr 12, 2026 Holiday
  • First Day of Summer Term Apr 13, 2026 Term
  • Summer Half Term May 23 - May 31, 2026 Holiday
  • Inset Day Jun 9, 2026 Inset Day
  • Last Day of Summer Term Jul 17, 2026 Term
  • Summer Holiday Jul 18 - Aug 30, 2026 Holiday
  • New Year's Day (Bank Holiday) Jan 1, 2026 Holiday
  • Good Friday (Bank Holiday) Apr 3, 2026 Holiday
  • Easter Monday (Bank Holiday) Apr 6, 2026 Holiday
  • Early May Bank Holiday May 4, 2026 Holiday
  • Spring Bank Holiday May 25, 2026 Holiday
  • Summer Bank Holiday Aug 31, 2026 Holiday
  • Christmas Day (Bank Holiday) Dec 25, 2025 Holiday
  • Boxing Day (Bank Holiday) Dec 26, 2025 Holiday

Exam results & performance

DfE performance tables Official results, 2024–2025 GOV.UK ↗
68.9 Attainment 8 England 46.1 Top 3%
83.3% Grade 5+ English & maths England 45.4% Top 4%
39.56 A level average score England 35 Top 18%
21.5% Persistent absence England 17.8%

The measures that carry the most signal. Open a section to compare Watford Grammar School for Boys with Hertfordshire County Council and England.

Key stage 4 (GCSE) 68.9 Attainment 8 score

Year 11 results across eight qualifications, including English and maths.

This school Hertfordshire County Council England

Attainment 8 score · Average across 8 GCSEs, out of 90 68.9
Hertfordshire County Council 50.6 England 46.1 +22.8 vs England
Grade 5+ in English & maths · A strong pass 83.3%
Hertfordshire County Council 53.4% England 45.4% +37.9 vs England
Attainment 8 — disadvantaged pupils 52.3
Hertfordshire County Council 34.2 England 34.9 +17.4 vs England
Disadvantage gap · Attainment 8 points; smaller is better 18.5
Hertfordshire County Council 19.9 England 15.5 +3 vs England
Disadvantaged pupils in the year group · Context for the scores above 10.4%
Hertfordshire County Council 17.7% England 28.2%
Pupils in the year group · Small cohorts swing wildly 222
16 to 18 (A level & sixth form) 39.56 A level average point score

Results for students finishing post-16 study.

This school Hertfordshire County Council England

A level average point score · Per entry, 50 = A* 39.56
Hertfordshire County Council 36.82 England 35 +4.6 vs England
A level students · Small cohorts swing wildly 245
Attendance 21.5% Persistently absent pupils

Absence across the whole school year.

This school Hertfordshire County Council England

Persistently absent pupils · Missed 10%+ of sessions; lower is better 21.5%
Hertfordshire County Council 16.5% England 17.8% +3.7 vs England
Overall absence · Lower is better 7.1%
Hertfordshire County Council 6.5% England 6.8% +0.3 vs England
What pupils do after GCSEs 99% In education, apprenticeship or work

Still in education, an apprenticeship or work a year after key stage 4.

This school Hertfordshire County Council England

In education, apprenticeship or work 99%
Hertfordshire County Council 95% England 92% +7 vs England
Same, for disadvantaged pupils 93%
Hertfordshire County Council 86% England 83% +10 vs England
What students do after 16 to 18 study 89% In education, apprenticeship or work

Destinations the year after finishing post-16 study.

This school Hertfordshire County Council England

In education, apprenticeship or work 89%
Hertfordshire County Council 82% England 79% +10 vs England
Went to higher education 77%
Hertfordshire County Council 42% England 37% +40 vs England
About this data source & caveats

Progress 8 is not published for 2024–2025. This year group missed their key stage 2 tests in 2020, so there is no baseline to measure progress from.

Attendance comparisons are pupil-weighted averages we calculate from every school’s published absence figure — the DfE absence file has no local authority or England rows of its own.

We show the headline measures only. Threshold and curriculum-policy figures — grade 4+ in English and maths, EBacc entry and points, the per-subject key stage 2 breakdown, academic and applied splits at 16 to 18 — reflect admissions and curriculum choices more than school quality, so they are left to GOV.UK. Progress measures matter most because they compare pupils with others who started at the same level; attainment on its own largely tracks a school’s intake.

Figures are the Department for Education’s official published results for Watford Grammar School for Boys. Results are suppressed where too few pupils were entered. England figures are the average for state-funded schools. “Top x%” is this school’s position among all schools in England with a published figure for that measure — the DfE does not publish league table rankings.

Source: Compare school and college performance, Department for Education. Contains public sector information licensed under the Open Government Licence v3.0.

Location & catchment area

Indicative catchment Other secondary schools

Indicative only. This is a nearest-school (Voronoi) estimate — the area closer to Watford Grammar School for Boys than to any other secondary school. Real admissions depend on the school’s own policy (straight-line distance, siblings, faith, feeder schools and available places) and change each year. Always confirm with the school and local authority admissions team.