Every school has a number of INSET (In Service Educational Training) days per year. These days are for staff training and are important for the development of teaching methods.
The decision on the dates of inset days is made by the individual head teacher and governing body of that school. Any queries should, therefore, be directed to the individual schools.
View details of school inset days below:
Abercynon Community Primary School
Monday 02 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Aberdare Community School
Monday 21 July 2025
Inset day - school will be closed for learners.
Aberdare Park Primary School
Monday 02 June 2025
INSET day – school closed for pupils
Friday 18 July 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Aberdare Town C in W Primary
Monday 02 June 2025
The school is closed for staff training purposes
Monday 21 July 2025
The school is closed for training purposes
Alaw Primary School
Monday 21 July 2025
School closed INSET day
Bryncelynnog Comprehensive School
Friday 27 June 2025
This is an INSET Day. School is closed to students.
Monday 30 June 2025
This is an INSET Day. School is closed to students.
Monday 21 July 2025
This is an INSET Day. School is closed to students.
Brynnau Primary School
Monday 21 July 2025
INSET Day 6
Capcoch Primary School
Monday 16 June 2025
INSET Day-Professional Learning for staff
Monday 21 July 2025
INSET Day-Professional Learning for staff
Friday 03 October 2025
Professional Learning Day
Caradog Primary School
Friday 02 May 2025
INSET day – school closed for pupils
Tuesday 06 May 2025
INSET day – school closed for pupils
Cardinal Newman RC Comprehensive School
Monday 21 July 2025
The school will be closed to all pupils for staff training purposes.
Cefn Primary School
Tuesday 06 May 2025
INSET day – school closed for pupils
Tuesday 06 May 2025
INSET day – school closed for pupils
Friday 18 July 2025
INSET Day-Professional Learning for staff
Monday 21 July 2025
LA Designated INSET day
Coedpenmaen Primary School
Monday 02 June 2025
INSET Day - School will be closed for pupils
Monday 21 July 2025
INSET Day- School will be closed for pupils
Coedylan Primary School
Friday 20 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET Day
Craig Yr Hesg Primary School
Tuesday 06 May 2025
INSET day – school closed for pupils
Friday 18 July 2025
INSET day
Friday 18 July 2025
INSET Day- Professional Learning for staff
Monday 21 July 2025
LA Designated INSET day
Cwmaman Primary School
Monday 21 July 2025
Inset Day
Cwmclydach Community Primary School
Friday 23 May 2025
INSET day
Friday 20 June 2025
INSET day
Monday 21 July 2025
INSET day
Cwmdar Primary School
Monday 21 July 2025
INSET Day-staff training
Cwmlai Primary School
Monday 21 July 2025
Inset Day
Darran Park Primary School
Monday 21 July 2025
INSET day – school closed for pupils
Darrenlas Primary School
Friday 18 July 2025
INSET day – school closed for pupils
Dolau Primary School
Friday 13 June 2025
Inset Day
Monday 21 July 2025
LA designated Inset Day
Glenboi Community Primary School
Friday 18 July 2025
INSET day
Gwauncelyn Primary School
Monday 21 July 2025
Whole school teaching and learning training
Gwaunmeisgyn Primary School
Friday 02 May 2025
INSET day – school closed for pupils
Hafod Primary School
Friday 18 July 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET Day : School Closed to pupils
Hendreforgan Primary School
Monday 21 July 2025
INSET day – school closed for pupils
Llanhari Primary School
Monday 21 July 2025
INSET day
Llanilltud Faerdref Primary School
Thursday 17 July 2025
INSET day – school closed for pupils
Friday 18 July 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET Day - School closed for pupils
Llantrisant Primary School
Friday 23 May 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Llwydcoed Primary School
Monday 21 July 2025
INSET Day
Llwyncrwn Primary School
Friday 20 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
School closed for Staff Training
Llwynypia Primary School
Friday 23 May 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Maerdy Community Primary School
Friday 02 May 2025
INSET day – school closed for pupils
Maesgwyn Special School
Monday 02 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
Inset day - Staff training
Maesybryn Primary School
Monday 02 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Monday 01 September 2025
INSET day – school closed for pupils
Maesycoed Primary School
Friday 18 July 2025
Staff training day. School closed to pupils
Monday 21 July 2025
Staff training day. School closed to pupils
Miskin Primary School
Monday 21 July 2025
Compulsory INSET day no school for pupils today. Thank you.
Mountain Ash Comprehensive School
Monday 21 July 2025
INSET DAY - School closed for all pupils
Oaklands Primary School
Monday 21 July 2025
INSET day – school closed for pupils
Parc Lewis Primary School
Monday 02 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day
Parc Primary School
Monday 21 July 2025
INSET day – school closed for pupils
Penderyn Primary School
Monday 21 July 2025
INSET day – school closed for pupils
Pengeulan Primary School
Monday 21 July 2025
INSET
Penpych Primary School
Monday 02 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day
Monday 01 September 2025
INSET day – school closed for pupils
Tuesday 02 September 2025
INSET day – school closed for pupils
Monday 20 July 2026
INSET day – school closed for pupils
Penrhiwceibr Primary School
Friday 23 May 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Penrhys Primary School
Monday 21 July 2025
School closed for all children and staff.
Thank you
Mr. Williams
Penygawsi Primary School
Monday 21 July 2025
INSET day – school closed for pupils
Penyrenglyn Community Primary School
Friday 23 May 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Penywaun Primary School
Friday 18 July 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day
Perthcelyn Community Primary School
Friday 02 May 2025
INSET day – school closed for pupils
Monday 02 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Pontrhondda Primary School
Friday 23 May 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Pontyclun Primary School
Monday 21 July 2025
staff training
Pontygwaith Primary School
Friday 27 June 2025
INSET Day
Monday 21 July 2025
INSET Day
Porth Community School
Friday 27 June 2025
School is closed for a designated INSET Day
Monday 21 July 2025
School is closed for a designated INSET Day
SS Gabriel & Raphael RC Primary School
Monday 21 July 2025
Designated INSET Day
St John Baptist C in W High School
Monday 21 July 2025
Inset Day
St Margaret's RC Primary School
Monday 21 July 2025
Inset Day. School is closed to pupils.
St Michael's RC Primary School
Monday 21 July 2025
INSET day – school closed for pupils
Tai Education Centre
Monday 21 July 2025
LA Directed Inset Day 5 - Closed to all pupils.
Ton Infants School
Monday 21 July 2025
Inset Day
Ton Pentre Junior School
Monday 21 July 2025
INSET Day - Only staff to attend.
Monday 01 September 2025
INSET Day - Only staff to attend.
Tuesday 02 September 2025
INSET Day - Only staff to attend.
Monday 20 July 2026
INSET Day - Only staff to attend.
Tonyrefail Community School
Monday 23 June 2025
INSET Day
Monday 21 July 2025
INSET Day
Tonysguboriau Primary School
Monday 02 June 2025
INSET
Monday 21 July 2025
INSET
Trallwng Infants School
Friday 02 May 2025
Staff training.School closed to pupils
Friday 06 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
Staff training. School closed to pupils
Trealaw Primary School
Monday 21 July 2025
INSET DAY
Tref Y Rhyg Primary School
Monday 16 June 2025
INSET day – school closed for pupils
Friday 27 June 2025
INSET day – school closed for pupils
Treorchy Comprehensive School
Monday 21 July 2025
INSET Day
Treorchy Primary School
Monday 02 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Monday 01 September 2025
INSET day – school closed for pupils
Monday 20 July 2026
INSET day – school closed for pupils
Trerobart Primary School
Friday 23 May 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Ty Gwyn Education Centre
Monday 21 July 2025
INSET day
Williamstown Primary School
Monday 21 July 2025
INSET
Y Pant Comprehensive School
Monday 21 July 2025
INSET DAY
Ynysboeth Primary School
Friday 23 May 2025
INSET day
Monday 21 July 2025
INSET DAY
Ynyshir Community Primary School
Friday 18 July 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day
Ysgol Bro Taf
Friday 20 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Ysgol Garth Olwg
Friday 27 June 2025
Diwrnod Dysgu Proffesiynol / Professional Learning Day
Monday 30 June 2025
Diwrnod Dysgu Proffesiynol / Professional Learning Day
Monday 21 July 2025
Diwrnod Dysgu Proffesiynol / Professional Learning Day
Ysgol Gyfun Cwm Rhondda
Monday 21 July 2025
Diwrnod Hyfforddiant Mewn Swydd Staff – Ysgol ar gau i ddisgyblion
Staff Training Day - School closed for pupils
Ysgol Gyfun Rhydywaun
Monday 21 July 2025
Mae'n ddiwrnod Dysgu Proffesiynol. Mae'r ysgol ar gau i ddisgyblion.
Today is a staff Professional Learning day. The school is closed to pupils.
Ysgol Gynradd Gymraeg Aberdar
Friday 06 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
INSET day – school closed for pupils
Ysgol Gynradd Gymraeg Awel Taf
Monday 21 July 2025
INSET day – school closed for pupils
Ysgol Gynradd Gymraeg Bodringallt
Monday 21 July 2025
HMS - Ysgol ar gau i blant ar gyfer hyfforddi staff INSET - School closed to children for staff training
Ysgol Gynradd Gymraeg Bronllwyn
Monday 23 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
HMS 6 felly does dim ysgol i`r disgyblion.
INSET Day 6, no school for pupils.
Ysgol Gynradd Gymraeg Castellau
Monday 23 June 2025
INSET day – school closed for pupils
Ysgol Gynradd Gymraeg Evan James
Friday 23 May 2025
Diwrnod HMS / INSET Day
Monday 21 July 2025
Diwrnod HMS Partneriaeth Addysg Pontypridd/ (clwstwr)/INSET Day
Ysgol Gynradd Gymraeg Llwyncelyn
Friday 13 June 2025
INSET day – school closed for pupils
Monday 21 July 2025
HMS / INSET
Ysgol Gynradd Gymunedol Gymraeg Llantrisant
Monday 21 July 2025
Diwrnod HMS / INSET Day
Ysgol Hen Felin
Monday 21 July 2025
INSET DAY
Ysgol Llanhari
Friday 27 June 2025
Diwrnod HMS / INSET Day
Monday 21 July 2025
Diwrnod HMS / INSET Day
Ysgol Nantgwyn
Friday 23 May 2025
INSET day – school closed for pupils
Friday 18 July 2025
Inset Day
Monday 21 July 2025
Inset day
Ysgol Ty Coch
Monday 21 July 2025
Ysgol Ty Coch will be closed on the 21st July 2025 for training.