Lake Granby
Lake Granby covers about 7,260 acres of the Colorado River in Colorado. The lake is in Grand County. Management is in the hands of USBR / USFS Arapaho NRA / Northern Water. This guide maps 1 named swimming spot around its shoreline.
Swimming beaches on Lake Granby
1 named swimming spot and shoreline access points, from USGS GNIS, Recreation.gov and the Forest Service. None is staffed by a lifeguard unless the operating agency posts one.
Lake Granby on the map
Lake center, swimming spots and access points.
Weather and water temperature
Air temperature and wind from Open-Meteo. Water temperature only when the lake has a public sensor.
Weather data by Open-Meteo
Planning a day at Lake Granby
Lake Granby sits at 40.1560, -105.8572. The Colorado River carries the outflow. It lies at roughly 8,284 feet of elevation. Maximum depth is around 221 feet.
There is no live level reading for Lake Granby. The agencies that run this water do not publish one openly, and we do not estimate what has not been measured. We check the public feeds daily, so this page will fill in if one appears. The closest public station is 400853105563701, WILLOW CREEK RESERVOIR NEAR DAM NEAR GRANBY, CO, about 5 miles away; it measures a different body of water, so its reading is not a stand-in for this one.
Nearby water includes Shadow Mountain Lake (Colorado, 5 mi), Willow Creek Reservoir (Colorado, 5 mi) and Grand Lake (Colorado, 6 mi). Colorado has 48 lakes on this site in total.
There is no water temperature sensor here, so only air conditions are shown. Season dates vary by park; the operating agency publishes them each spring. Check the operating agency for advisories before any water contact, especially for blue-green algae in late summer.
The shoreline of Lake Granby has 1 named swimming spot in the datasets we read. These come from USGS GNIS. Among them are Surprise Beach. Assume no lifeguard is on duty and keep children within reach.
Questions about Lake Granby
Can you swim in Lake Granby?
Yes. This guide maps 1 named swimming spot around the lake, including Surprise Beach. None is staffed by a lifeguard unless the operating agency posts one.
How big is Lake Granby?
About 7,260 acres. Maximum depth is around 221 feet.
What other lakes are near Lake Granby?
The closest in this guide is Shadow Mountain Lake, about 5 miles away in Colorado.
Lakes near Lake Granby
Other lakes in this guide, ordered by distance.

Grand Lake
Grand Lake is a reservoir of some 507 acres on the outflow =, in Colorado. The lake is in Grand County. Town of Grand Lake / USBR…

Dillon Reservoir
Fed by the Blue River, Dillon Reservoir holds roughly 3,233 acres of water in Colorado. You will find it in Summit County. Denver…
Union Reservoir
At roughly 717 acres, Union Reservoir is one of the lakes covered in Colorado. Its shoreline falls inside Weld County. It is…

Standley Lake
Standley Lake is a 1,200-acre reservoir on the Big Dry Creek in Colorado. It lies in Jefferson County. City of Westminster…

Horsetooth Reservoir
Horsetooth Reservoir is a 1,899-acre reservoir on the outflow = in Colorado. Its shoreline falls inside Larimer County.…

Chatfield Reservoir
Chatfield Reservoir is a reservoir of some 1,500 acres on the South Platte River, in Colorado. You will find it in Douglas…
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Sources
Every figure on this page comes from one of these public sources.

