Reservoir Hours 2026

Hours are subject to change. Hours below are 7 days/week. See the Special Event Schedule for scheduled closures due to events. Swimming hours and information

ALL watercraft including inflatables such as stand up paddleboards, foldable kayaks, rafts with paddles, must have a valid 2026 annual Boulder Reservoir small craft permit. Permits may be purchased online

DatesEntry
Gate
Open		All
Boats
Off the
Water		Outgoing
Gate
Closes		Swim
Beach		Boat
Rentals
January10 am - 3 pm3 pm4 pmCLOSEDCLOSED
New Year's DayCLOSEDCLOSEDCLOSEDCLOSEDCLOSED
February10 am - 3 pm3 pm4 pmCLOSEDCLOSED
March10 am - 4 pm4 pm5 pmCLOSEDCLOSED
April9 am - 5 pm5 pm6 pmCLOSEDCLOSED
May 1-219 am - 5 pm5 pm6 pmCLOSEDRental info + reservations
May 22 - Jul. 36 am - 8 pm8 pm9 pm10 a.m. - 6 p.m.Rental info + reservations
4th of July6 am - 4 pm4 pm5 pm8 a.m. - 4 p.m.Rental info + reservations
Jul. 5 - Aug. 166 am - 8 pm8 pm9 pm10 a.m. - 6 p.m.Rental info + reservations
Aug. 17 - Sept. 76 am - 8 pm8 pm9 pmSwim HoursRental info + reservations
Sept. 8 - 309 am - 6 pm6 pm7 pmCLOSEDRental info + reservations
October9 am - 6 pm6 pm7 pmCLOSEDCLOSED
November10 am - 3 pm3 pm4 pmCLOSEDCLOSED
Thanksgiving DayCLOSEDCLOSEDCLOSEDCLOSEDCLOSED
December10 am - 3 pm3 pm4 pmCLOSEDCLOSED
Christmas EveCLOSEDCLOSEDCLOSEDCLOSEDCLOSED
Christmas DayCLOSEDCLOSEDCLOSEDCLOSEDCLOSED
New Year's EveCLOSEDCLOSEDCLOSEDCLOSEDCLOSED

No Wake and Limited Wake Hours

DatesNo wake
Limited wake
April 1 - May 21

Tu: 9 - 11 am

Th: 9 - 11 am, 3 - 5 pm

Su: 9 - 11 am

Tu: 11 am - 5 pm

Th: 11 am - 3 pm

May 22 - Sept. 7

Tu: 6 - 10 am*

Th: 6 - 10 am, 4 - 8 pm

Su: 6 - 10 am

Tu: 10 am - 8 pm

Th: 10 am - 4 pm

Sept. 8 - Oct. 31

Tu: 9 - 11 am

Th: 9 - 11 am, 4 - 6 pm

Su: 9 am - noon

Tu: 11 am - 6 pm

Th: 11 am - 4 pm

*We allow the EXPAND Beyond, Inc. program to occasionally run during no wake hours beginning in mid-June to provide accessible water sports to athletes with physical disabilities.

Boulder Reservoir Links