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Lake Ronkonkoma
75°F
Lake Ronkonkoma
Islip, NY · Suffolk County
75°F water243 acres65 ft deep12 fish species
Right Now
72°
Clear
Water
75°
Wind
2 mph
S
Gusts
5 mph
Pressure
29.97
steady
LakeMonster planner
Plan Lake Ronkonkoma
Lake Ronkonkoma
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. The planning constraint is weak timing.
Best first move
Scout the first break or defined cover closest to a feeding flat.
keep shade, oxygen, and a nearby depth change in the plan A workable forecast window starts near 6am with about 8 mph wind.
Listed targets to ask about: Largemouth bass · Smallmouth bass
9 lake data sources in this readSee dataHideLatest source updated Jul 21, 2:07 AM EDT
- Current water temp
- 75°F
- Water temp history
- 484 readings
- Hourly weather
- 224 hours
- Solunar timing
- 2/5
- Fish species
- 12 listed
- Satellite imagery
- 244 captures
- Thermal imagery
- 1273 captures
- Map structure
- available
- Nearby lakes
- 3 options
The quick read is a planning aid, not a safety or access determination. The assistant will state uncertainty when the page does not contain a specific observation.
Forecast - Tue, Jul 21
High / Low
79° / 65°
Wind
11 mph
gusts 29 mph
Precip
86%
UV
4
Sunrise
5:39 AM
Sunset
8:18 PM
7-Day Weather Outlook
Every forecast metric for the week ahead, plus best days for fishing, boating, swimming, and paddling.
9 day forecast
Best Days This Week
Quick recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Wed, Jul 29
67/100
Wed, Jul 29 scores 67/100: Solunar 4/5, Wind 8 mph.
Best for Boating
Fri, Jul 24
90/100
Fri, Jul 24 scores 90/100: Wind 7 mph, Rain 0%.
Best for Swimming
Fri, Jul 24
75/100
Fri, Jul 24 scores 75/100: Air 80°F, Rain 0%.
Best for Paddling
Fri, Jul 24
85/100
Fri, Jul 24 scores 85/100: Wind 7 mph, Rain 0%.
Temperature Range
High Low
Precip & Wind
Rain % Wind mph
Daily Breakdown
Swipe to see all 9 days
| Metric | Tue21 | Wed22 | Thu23 | Fri24 | Sat25 | Sun26 | Mon27 | Tue28 | Wed29 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Thunderstorms | Thunderstorms | Drizzle | Partly Cloudy | Clear | Mostly Clear | Drizzle | Drizzle | Drizzle |
| High / Low | 79°/65° | 84°/70° | 79°/64° | 80°/64° | 80°/62° | 80°/64° | 80°/67° | 81°/68° | 80°/69° |
| Precip | 86% | 87% | 40% | 0% | 0% | 0% | 46% | 41% | 38% |
| Wind | 15 mphgust 29 | 12 mphgust 30 | 9 mphgust 18 | 7 mphgust 14 | 9 mphgust 17 | 7 mphgust 16 | 9 mphgust 19 | 10 mphgust 21 | 8 mphgust 15 |
| Pressure | 29.84" stable | 29.78" falling | 30.04" rising | 30.18" rising | 30.07" falling | 29.90" falling | 29.78" falling | 29.69" falling | 29.72" rising |
| UV Index | 4 | 6 | 9 | 7 | 9 | 8 | 6 | 6 | 7 |
| Sunrise | 5:39 AM | 5:39 AM | 5:40 AM | 5:41 AM | 5:42 AM | 5:43 AM | 5:44 AM | 5:45 AM | 5:46 AM |
| Sunset | 8:18 PM | 8:17 PM | 8:16 PM | 8:15 PM | 8:15 PM | 8:14 PM | 8:13 PM | 8:12 PM | 8:11 PM |
| Bite Rating | 2/5first quarter | 2/5first quarter | 3/5first quarter | 2/5waxing gibbous | 2/5waxing gibbous | 2/5waxing gibbous | 3/5waxing gibbous | 4/5FULL | 4/5FULL |
Today Read
Lake RonkonkomaWind read
Moderate
11 mph avg
Water read
75°
Warm-water bite
Air range
65° / 79°
today
Precip
86%
watch timing
Today's forecast for Lake Ronkonkoma has moderate wind, 65F to 79F air temperatures, 86% chance of precipitation, and 75F water.
Fishing Forecast
first quarter
2/5
Major
6:26 PM - 8:56 PM
Minor
1:18 PM - 2:48 PM
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July 17, 2026
Fish Species
12Water Temperature History
Current
80°
Jul 26
Low
36°
Feb 22
Average
62°
Last 12 Months
Warmest avg: July (79°F)
Coolest avg: February (44°F)
Rapid warming: April → May (+10°F)
Sharpest cooling: October → November (-11°F)
Weather Forecast
Wind speed, gusts, and pressure trends for trip timing.
7 day view
Hourly Wind Forecast
Swipe days or tap points
21
12am - 11pm
Wind SpeedWind Gust
Tap pointsPeak Wind
15 mph
12pm
Peak Gust
29 mph
highest gust
Pressure
29.98 inHg
steady
Visibility
14 mi
27% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Daily Pressure Forecast
Pressure stability helps plan windows
Pressure
Tap for detailsTap chart points for pressure details
Nearby Lakes
Fishing Forecast
2/5first quarter
Major6:26 PM - 8:56 PM
Minor1:18 PM - 2:48 PM
Water at 75°F -- warm-water species active.
Fish Species
12Nearby Lakes
Lake facts
About Lake Ronkonkoma
Direct answers from the lake profile and latest available condition data. Verify access, regulations, weather alerts, and safety conditions with local authorities.
The latest available LakeMonster reading for Lake Ronkonkoma, updated Jul 21, 2026, shows 75°F surface water temperature, clear, 2 mph wind. Conditions can vary across the lake and change quickly, so check local weather, access notices, and on-water observations before acting.
Lake Ronkonkoma has 243 acres and a reported maximum depth of about 65 feet based on the latest lake profile available to LakeMonster.
Lake Ronkonkoma is listed in Islip, Suffolk County, NY. Check the responsible local or state agency for current access rules, permits, closures, and boating restrictions.
LakeMonster lists Largemouth bass, Smallmouth bass, Bluegill, Pumpkinseed, Yellow perch, Walleye, Black crappie, Brown bullhead, Chain pickerel, Tiger muskie, Rainbow trout, Gar for Lake Ronkonkoma. A species listing does not guarantee current activity; use current temperature, weather, recent reports, and local regulations when planning.