
Lake Sullivan
Lake Sullivan is a beautiful freshwater lake located in Sullivan County, Indiana. With a total area of 461 acres, it provides ample opportunities for outdoor recreational activities. The lake is popular for fishing, boating, swimming, and picnicking. Anglers can catch a variety of fish, including Bluegill, Largemouth Bass, Gizzard Shad, and White Crappie. The lake is a favorite among local anglers due to its abundant fish population. Lake Sullivan has several access points for boats and fishing. The lake's shoreline is dotted with small parks and picnic areas, making it a great spot for families to enjoy a day out. The lake's clear waters are ideal for swimming, and several small beaches are available for visitors to take a dip. Kayaking, canoeing, and paddleboarding are also popular activities on the lake. In addition to its recreational opportunities, Lake Sullivan is an important source of drinking water for the surrounding area. The lake is part of the Sullivan County Water Corporation's system and is regularly monitored for water quality. The lake is also home to a variety of aquatic plant and animal species, and efforts are made to maintain the lake's ecological balance. Overall, Lake Sullivan is a wonderful destination for outdoor enthusiasts looking for a fun and relaxing day out. Its peaceful surroundings, diverse fish population, and ample recreational opportunities make it a popular spot for both locals and visitors alike. Whether you are fishing, boating, or just enjoying a picnic by the shore, Lake Sullivan is sure to leave you with happy memories of your time spent there.
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Lake Sullivan
Lake Sullivan is a beautiful freshwater lake located in Sullivan County, Indiana. With a total area of 461 acres, it provides ample opportunities for outdoor recreational activities. The lake is popular for fishing, boating, swimming, and picnicking. Anglers can catch a variety of fish, including Bluegill, Largemouth Bass, Gizzard Shad, and White Crappie. The lake is a favorite among local anglers due to its abundant fish population. Lake Sullivan has several access points for boats and fishing. The lake's shoreline is dotted with small parks and picnic areas, making it a great spot for families to enjoy a day out. The lake's clear waters are ideal for swimming, and several small beaches are available for visitors to take a dip. Kayaking, canoeing, and paddleboarding are also popular activities on the lake. In addition to its recreational opportunities, Lake Sullivan is an important source of drinking water for the surrounding area. The lake is part of the Sullivan County Water Corporation's system and is regularly monitored for water quality. The lake is also home to a variety of aquatic plant and animal species, and efforts are made to maintain the lake's ecological balance. Overall, Lake Sullivan is a wonderful destination for outdoor enthusiasts looking for a fun and relaxing day out. Its peaceful surroundings, diverse fish population, and ample recreational opportunities make it a popular spot for both locals and visitors alike. Whether you are fishing, boating, or just enjoying a picnic by the shore, Lake Sullivan is sure to leave you with happy memories of your time spent there.
Read more detailsCurrent Conditions
Water Temperature
Latest Water Temperature Data: Current water temperature for Lake Sullivan is 69° Fahrenheit - providing real-time thermal conditions for fishing, swimming, and water recreation planning.
Current Snapshot
Forecast: Wednesday, Jul 16
Thunderstorms
Hourly Insights
Temperature
Precipitation
Wind
Sun, Moon & UV
Weather Forecast & Fishing Conditions at Lake Sullivan
Today's weather at Lake Sullivan features partly cloudy skies with temperatures ranging from 72°F to 88°F. Wind conditions will average 6 mph with gusts reaching up to 18 mph, creating excellent fishing conditions with calm waters. The UV index will reach 8 (Very High), and there's a 66% chance of precipitation. The current water temperature is 69°F (updated Jul 13), indicating that excellent conditions for bass and trout fishing. These conditions will significantly impact fish behavior and angling success throughout the day.
Lake Map Views

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Solunar Fishing Forecast
Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)
Best Bite Times
Major Times (Peak)
4:45 AM - 7:15 AM
4:45 AM - 7:15 AM
Minor Times (Good)
4:00 AM - 4:00 AM
4:17 PM - 5:47 PM
Fishing Intelligence
Today's fishing action at Lake Sullivan is rated 2/5 (Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)). For the best results, target the major bite times around 4:45 AM and 4:45 AM.
Water Temp Impact: With the water at 69°F, expect good activity from warm-water species like bass and panfish.
Common Fish Species
Nearby Lakes
Water Temperature History
Trends for Lake Sullivan
Current Temp
Measured on Jul 13
Latest recorded surface temperature.
Lowest in Period
40°F
On Jan 22
Coldest point in the Last 12 Months.
Average in Period
59°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: August (82°F).
- Coolest avg: February (40°F).
- Rapid warming often occurs: March → April (+9°F).
- Sharpest cooling trend: October → November (-17°F).
Weather Forecast
Wind speed and pressure trends
Hourly Wind Forecast
Wind Direction
167°
Pressure
1014 mb
Cloud Cover
94%
Visibility
10 miles
Daily Pressure Forecast


Frequently Asked Questions About Lake Sullivan
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