Working Days in August 2025

August 2025 has 31 calendar days, of which 10 fall at the weekend. It opens on a Friday and closes on a Sunday, and contains 4 Mondays — useful to know if your payroll or reporting cut-off lands on a particular weekday.

There is 1 bank holidayin England & Wales this month: Summer bank holiday on Monday 25 August. 20 working days remain once it is removed along with the weekends.

That is 1 fewer working day than August 2024, which had 21. The shift is down to which weekday the month starts on and whether a movable holiday like Easter lands inside it.

Across the year, August has the fewest working days of any month in 2025in England & Wales — it is one of the lightest months, so build in extra slack for anything time-critical. All three UK regions share the same total of 20 working days this month.

For HR and payroll, the working-day count drives pro-rata pay for anyone starting or leaving part-way through August, and the number of Mondays affects weekly-paid staff and any cut-off tied to the start of the week. For project and finance teams, it sets the realistic capacity for the month before leave is even taken into account.

Working days are counted Monday to Friday, excluding the bank holidays shown above for the region you choose. Scotland and Northern Ireland carry extra holidays — Scotland’s 2nd January, St Andrew’s Day, and an early-August Summer holiday; Northern Ireland’s St Patrick’s Day and Battle of the Boyne — so a UK-wide team can have three different figures for the same month. Use the calculator below to count forwards or backwards from any date in August 2025.