Skip to content
Map of Chatfield Reservoir
Add the first photo
Shore entry

Chatfield Reservoir

Colorado, United StatesDirections
Open Water suggested3–21 m (10–70 ft) depthShore entry

Chatfield Reservoir at a glance

Chatfield Reservoir is a shore dive site in Colorado, United States with depths of 3–21.3 m (10–70 ft). Typically most favorable Dec · from 3 years of archive data. Divers commonly see Walleye, Crayfish, and Smallmouth bass. Check the latest conditions and entry details before you go.

Next window today· 8:00–19:00 · favorable · sunset 18:07

Wind forecast for this hour · 0:00 · run 1 h ago
—

Tap a factor for its source and model point

Site hazards: Poor visibility over soft silt (easy silt-out); heavy recreational boat traffic on the main lake; cold thermoclines; altitude (~5,400 ft).

Read the full hazards ↓

Dive windows this week

Sun8:00–19:00 favorable

5 kn wind (5 kn wind)

Mon8:00–19:00 favorable

4 kn wind (4 kn wind)

Tue8:00–19:00 favorable

5 kn wind (5 kn wind)

Wed8:00–19:00 favorable

5 kn wind (5 kn wind)

Thu8:00–19:00 favorable

4 kn wind (4 kn wind)

Fri8:00–19:00 favorable

4 kn wind (4 kn wind)

SatNot in the forecast yet

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wind forecasts. Numbers under each bar are daylight averages.

First light 6:53 · Sunrise 7:21 · Sunset 18:07 · some windows run past sunset

Source: Open-Meteo wind · updated 24 Oct, 23:21 GMT-6

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Chatfield Reservoir

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Known for: Crayfish, Smallmouth bass
Best time: Late spring and early summer mornings before boat traffic and algae peak.

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. January, 97% of days have historically been favorable, wind has typically been 8 knots
  2. February, 98% of days have historically been favorable, wind has typically been 9 knots
  3. March, 86% of days have historically been favorable, wind has typically been 10 knots
  4. April, 84% of days have historically been favorable, wind has typically been 10 knots
  5. May, 85% of days have historically been favorable, wind has typically been 11 knots
  6. June, 88% of days have historically been favorable, wind has typically been 10 knots
  7. July, 89% of days have historically been favorable, wind has typically been 10 knots
  8. August, 91% of days have historically been favorable, wind has typically been 10 knots
  9. September, 93% of days have historically been favorable, wind has typically been 9 knots
  10. October, 92% of days have historically been favorable, wind has typically been 9 knots
  11. November, 98% of days have historically been favorable, wind has typically been 8 knots
  12. December, 98% of days have historically been favorable, wind has typically been 8 knots, historically most favorable

December has typically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

Rough labels: “Commonly seen” usually means two or more recorded sightings near this site in public dive logs (GBIF), “Occasionally seen” one; “Seasonal” and “Rarely seen” come from dive-guide research. Not a measured rate.

Fills & rentals nearby

No dive shops mapped within 25 km (16 mi). Know one? Add it to the map.

Data updated July 2026

Site details

A state-park reservoir southwest of Denver used regularly for scuba training, with a designated dive area featuring a sunken sailboat on its trailer, a fire hydrant and a toilet connected by rope lines. Old flooded gravel quarries in the 30-50 ft range dot the lake, which reaches about 70 feet at its deepest; the soft silt bottom usually keeps visibility under 5-15 feet. The main lake may be dived with a flag, but boat traffic is heavy in summer.

muckshore

Poor visibility over soft silt (easy silt-out); heavy recreational boat traffic on the main lake; cold thermoclines; altitude (~5,400 ft).

Reviews

No reviews yet — this site is waiting for its first. Dived here? Your rating and a few lines help the next diver.

Spot something off?

Help keep this listing accurate for the next diver.