Welcome to the Diamond Bar High School
2025 Summer School Information Page!
Summer School Program Dates:
June 09, 2025 - July 17, 2025
Please note the adjusted schedule for Weeks 1 & 2 due to observance of the Juneteenth Holiday.
WVUSD & D2L Summer school classes are held on campus from 7:30am - 1:00pm.
(Mt. SAC sponsored classes run 7:30 am - 1:30 pm)
Diamond Bar High Summer School Programs
DBHS offers three (3) different summer school programs on our campus:
WVUSD non-tuition classes are for students who need to retake a course for high school graduation credits. Class rosters are generated by the student's GLC. Please see your GLC if you believe you need to retake a class during summer school. These classes are offered to current 9th, 10th, and 11th grade students.
Mt. SAC non-tuition courses are for students who wish to advance in select subject areas or remediate a select subject. There are limited course offerings and seats available; all Mt. SAC class rosters are determined by a lottery system. These courses are offered to our current 11th, 10th, and 9th students (in that order) and current 8th grade students who will be DBHS 9th grade students in the fall of 2025. Please click on the tab to the right to find out about course offerings and apply for a seat.
Use the link to sign up for a Mt. SAC Summer School class at DBHS. Spots will be filled using a lottery system. Sign-ups will close on Feb. 25, 2025.)
III. Dedicated to Learning Tuition Program
D2L (Dedicated to Learning) courses are tuition based classes for students who wish to advance in a subject area. Visit the D2L Website for program details using the link provided on the tabs to the right (in February).
WVUSD and Mt. SAC class information will be posted on pages I & II.
D2L class information will be posted on page III.
Information including class times can be found on the program-specific pages (right-side of page).
*Classes are Monday through Thursday with the exceptions noted earlier on this page for holiday observances and makeup days.