However, moving the academic calendar means that the hottest month of the year will be school days. Some have cited this as a disadvantage as not all classrooms are well ventilated.
Some have also cited the overlap with most town fiestas and Holy Week thus may affect attendance. However, it should be asked whether holidays should take precedence over the advantages of moving the school year.
The CHED's technical working group notes that class suspensions due to heavy rains and typhoons tend to spike from July through October. Thus, shifting the start of the academic
calendar from June to August would not make much of a difference.
There is also the concern for families, particularly those from farming and fishing communities who would have difficulty with an August school opening because agricultural cycles cause them to run out of financial resources in August, hence a June start is most feasible.
A group of UP Diliman professors also raised similar issues against moving the academic calendar.
Transitioning from high school which ends in March and going to a university that will start July or August would also provide for a longer gap between the two levels. The change in academic calendars would then need to be coordinated with the Department of Education.