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Photo: Greenwich, Ohio (7981724661) by Ken Lund from Reno, Nevada, USA (CC BY-SA 2.0) License

Greenwich Reservoir

Lake · Greenwich, Ohio

4.3(12 reviews)

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 77°F, within the comfortable 70–86°F range.

  • Water temperature is 77°F, within the comfortable 70–86°F range.
Good to swimGood conditions today

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Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 77°F, within the comfortable 70–86°F range.

  • Water temperature is 77°F, within the comfortable 70–86°F range. NOAA buoy 45203, as of Aug 22, 6:50 AM UTC
Water temp
77°F
25°C

No official beach-advisory feed for Ohio yet — follow posted signs and local guidance.

Live data from NOAA buoy 45203 (25.5 mi away), as of Aug 22, 6:50 AM UTC.

Weather at Greenwich Reservoir

H: 80° L: 66°
Clear
Clear
67°
|
Feels like 67°
Precipitation
70%
Humidity
86%
Wind
7 mph
UV Index
0
Water Conditions:
🏊Cool but swimmable
12 AM
Overcast
68°
3 AM
Clear
67°
6 AM
Overcast
66°
9 AM
Partly Cloudy
72°
12 PM
Overcast
79°
3 PM
Overcast
78°
6 PM
Moderate rain at times
70°
9 PM
Patchy rain nearby
66°

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Frequently asked questions

Where is Greenwich Reservoir?
Greenwich Reservoir is a lake in Greenwich, Ohio.
What is the water temperature at Greenwich Reservoir?
As of August 22, 2026, the water temperature at Greenwich Reservoir in Greenwich, Ohio is 77°F (25°C), measured by NOAA buoy 45203, 25.5 miles away.
Can you swim at Greenwich Reservoir?
Comfortable for a swim today: water temperature is 77°F, within the comfortable 70–86°F range. Checked August 22, 2026.
How is Greenwich Reservoir rated?
Greenwich Reservoir in Greenwich, Ohio has an average visitor rating of 4.3 out of 5, based on 12 reviews.

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🏞️ 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:
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Location & Contact

Greenwich, OH 44837

Greenwich, Ohio 44837

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