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Photo: John Martin Reservoir State Park by Jeffrey Beall (CC BY 3.0) License

John Martin Reservoir State Park

State park · Hasty, Colorado

Hot — visit earlyBarbecue grillPicnic tablesPublic restroomWheelchair accessible entrance

Park with fishing, hiking, camping, boating & wildlife-viewing, including hundreds of bird species.

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Weather at John Martin Reservoir State Park

H: 100° L: 66°
Sunny
Sunny
98°
|
Feels like 94°
Precipitation
1%
Humidity
25%
Wind
11 mph
UV Index
2.2
Water Conditions:
🏊Perfect for swimming
12 AM
Overcast
73°
3 AM
Clear
68°
6 AM
Clear
66°
9 AM
Sunny
80°
12 PM
Sunny
95°
3 PM
Sunny
100°
6 PM
Sunny
96°
9 PM
Clear
83°

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Frequently asked questions

Where is John Martin Reservoir State Park?
John Martin Reservoir State Park is a state park in Hasty, Colorado.
Can you swim at John Martin Reservoir State Park?
There is no fixed answer for John Martin Reservoir State Park: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at John Martin Reservoir State Park in Hasty, Colorado. Check current water conditions before you go, and follow posted signs and local guidance.
How is John Martin Reservoir State Park rated?
John Martin Reservoir State Park in Hasty, Colorado has an average visitor rating of 4.4 out of 5, based on 899 reviews.

Visitor Reviews

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Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

☀️
Right Now
Very warm - visit early morning or evening
General Tips:
  • Weekday mornings (8–10 AM) are typically less crowded
  • Check the forecast 2–3 days ahead for best planning
  • Avoid holiday weekends for a quieter experience
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

30703 Co Rd 24, Hasty, CO 81044

Hasty, Colorado 81044

Popular Times

Monday
Morning
6a
7a
8a
9a
10a
11a
Afternoon
12p
1p
2p
3p
4p
5p
Evening
6p
7p
8p
9p
10p
11p
Not busy
Moderate
Busy
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People Talk About

💬 campground💬 dam💬 showers💬 windy💬 shade💬 boating💬 water level💬 coin💬 prairie💬 plains

Highlights

Picnics

Accessibility

Wheelchair accessible entranceWheelchair accessible parking lot

Amenities

🍖 Barbecue grill🧺 Picnic tables🚻 Public restroom🏪 Swings

Family & Children

👶 Good for kids👶 Kid-friendly hikes👶 Playground