Updated
Grennan Tank
Reservoir
Hot — visit earlycamping-nearby
Interactive map not available
Weather at Grennan Tank
H: 100° L: 72°
Overcast
95°
|
Feels like 93°
Precipitation
36%
Humidity
22%
Wind
5 mph
UV Index
0
Water Conditions:
🏊Perfect for swimming
12 AM
77°
3 AM
75°
6 AM
72°
9 AM
82°
12 PM
95°
3 PM
99°
6 PM
98°
9 PM
87°
Sponsored gear checklist
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Inflatable PaddleboardA popular way to explore calm coves and shorelines.
Compare on Amazon →Life JacketImportant around boats, paddling, and deeper swimming areas.
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Compare on Amazon →Frequently asked questions
- Where is Grennan Tank?
- Grennan Tank is a reservoir in Arizona.
- Can you swim at Grennan Tank?
- There is no fixed answer for Grennan Tank: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Grennan Tank in Arizona. Check current water conditions before you go, and follow posted signs and local guidance.
- What amenities does Grennan Tank have?
- Visitor-listed amenities at Grennan Tank include camping-nearby.
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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
🏞️ Lakes Tips:
- ›Check for boat launch facilities and fees
- ›Obtain required fishing licenses before arrival
- ›Be aware of lake-specific regulations and restrictions
- ›Monitor water quality reports before swimming
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)
Location & Contact
Arizona
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Amenities
⛺ Camping nearby