
Round Valley Reservoir
Nestled in Hunterdon County, New Jersey, Round Valley Reservoir is a popular destination for outdoor enthusiasts seeking a wide range of recreational activities. The reservoir spans over 2,272 acres and is the deepest lake in New Jersey, with a maximum depth of approximately 180 feet. Its brisk blue waters and scenic shoreline attract swimmers, boaters, fishermen, picnickers, and campers, making it a popular spot for visitors of all ages. One of the main attractions of Round Valley Reservoir is its swimming area, which was created by the construction of an earth dam across a narrow waterway on the west side of the reservoir, separating it from the main part of the reservoir. The swimming area offers visitors a refreshing escape from the summer heat, with clear and clean water that is perfect for swimming and water play. Lifeguards are on duty during the summer months, ensuring a safe and enjoyable experience for all visitors. The reservoir is also a popular spot for boating, with several boat ramps available for visitors to launch their vessels. Boaters can explore the reservoir's expansive waters, taking in the scenic views and enjoying the tranquility of the lake. Anglers can also test their skills in the reservoir's waters, with lake trout being one of the most sought-after species. For those who prefer to stay on land, Round Valley Reservoir offers plenty of opportunities for hiking, picnicking, and camping. The surrounding woodlands are home to a variety of wildlife, including deer, foxes, and wild turkeys, making it an ideal spot for wildlife viewing and photography. The reservoir's campgrounds offer a range of facilities and amenities, including tent and RV campsites, showers, and picnic areas, providing visitors with everything they need for a comfortable and enjoyable stay. Overall, Round Valley Reservoir is a beautiful and popular destination for outdoor enthusiasts seeking a wide range of recreational activities. Its expansive waters, scenic shoreline, and surrounding woodlands provide visitors with an abundance of opportunities to explore and enjoy the great outdoors. Whether you're seeking a refreshing swim, a scenic boat ride, or a peaceful camping trip, Round Valley Reservoir has something to offer everyone who visits.
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Round Valley Reservoir
Nestled in Hunterdon County, New Jersey, Round Valley Reservoir is a popular destination for outdoor enthusiasts seeking a wide range of recreational activities. The reservoir spans over 2,272 acres and is the deepest lake in New Jersey, with a maximum depth of approximately 180 feet. Its brisk blue waters and scenic shoreline attract swimmers, boaters, fishermen, picnickers, and campers, making it a popular spot for visitors of all ages. One of the main attractions of Round Valley Reservoir is its swimming area, which was created by the construction of an earth dam across a narrow waterway on the west side of the reservoir, separating it from the main part of the reservoir. The swimming area offers visitors a refreshing escape from the summer heat, with clear and clean water that is perfect for swimming and water play. Lifeguards are on duty during the summer months, ensuring a safe and enjoyable experience for all visitors. The reservoir is also a popular spot for boating, with several boat ramps available for visitors to launch their vessels. Boaters can explore the reservoir's expansive waters, taking in the scenic views and enjoying the tranquility of the lake. Anglers can also test their skills in the reservoir's waters, with lake trout being one of the most sought-after species. For those who prefer to stay on land, Round Valley Reservoir offers plenty of opportunities for hiking, picnicking, and camping. The surrounding woodlands are home to a variety of wildlife, including deer, foxes, and wild turkeys, making it an ideal spot for wildlife viewing and photography. The reservoir's campgrounds offer a range of facilities and amenities, including tent and RV campsites, showers, and picnic areas, providing visitors with everything they need for a comfortable and enjoyable stay. Overall, Round Valley Reservoir is a beautiful and popular destination for outdoor enthusiasts seeking a wide range of recreational activities. Its expansive waters, scenic shoreline, and surrounding woodlands provide visitors with an abundance of opportunities to explore and enjoy the great outdoors. Whether you're seeking a refreshing swim, a scenic boat ride, or a peaceful camping trip, Round Valley Reservoir has something to offer everyone who visits.
Read more detailsCurrent Conditions
Water Temperature
Current water temperature for Round Valley Reservoir is 54°F.
Current Snapshot
Forecast: Thursday, May 1
MostlyClear
Hourly Insights
Temperature
Precipitation
Wind
Sun, Moon & UV
Solunar Fishing Forecast
Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)
8:25 PM - 10:55 PM
10:00 AM - 12:30 PM
12:15 PM - 1:45 PM
4:00 AM - 4:00 AM
Outlook for Thursday at Round Valley Reservoir
Expect temperatures ranging from 43°F to 74°F. There's a 51% chance of rain, potentially bringing around 0.01" rain. Winds will be averaging 5 mph, with potential gusts reaching up to 21 mph. The maximum UV index will be 8 (Very High), so plan sun protection accordingly. For anglers, today's fishing action is rated 2/5 (Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 8:25 PM and 10:00 AM, or try the minor windows near 12:15 PM and 4:00 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Round Valley Reservoir.
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Lake Information
Common Fish Species
Nearby Lakes
Water Temperature History
Trends for Round Valley Reservoir
Current Temp
Latest recorded surface temperature.
Lowest in Period
32°F
On Jan 19
Coldest point in the Last 12 Months.
Average in Period
52°F
Typical temp during the Last 12 Months.
Temperature Trend: Last 12 Months
Surface temperature over the selected period.
Key Observations (Last 12 Months)
- Warmest avg: July (73°F).
- Coolest avg: January (36°F).
- Rapid warming often occurs: April → May (+13°F).
- Sharpest cooling trend: November → December (-12°F).
Weather Forecast
Wind speed and pressure trends
Hourly Wind Forecast
Wind Direction
74°
Pressure
1019 mb
Cloud Cover
20%
Visibility
30 miles
Daily Pressure Forecast


Frequently Asked Questions About Round Valley Reservoir
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