Open Water Data

Ronkonkoma beach - Islip Town Beach

Islip, New York, United States

Data Sources
  • E. coli
    PASS 98.7mpn (single) Thu, Sep 11, 2025 at 10:00am
  • Air Temperature
    10.1°C / 50.2°F (air) Tue, Mar 31, 2026 at 6:00am
  • Wind
    19.4 - 40.8km/h SW 226° Tue, Mar 31, 2026 at 6:00am
  • Overcast
    Overcast Tue, Mar 31, 2026 at 6:00am
  • Precipitation
    0mm Tue, Mar 31, 2026 at 6:00am
  • Air Visibility
    16km Tue, Mar 31, 2026 at 6:00am
  • Humidity
    86% Tue, Mar 31, 2026 at 6:00am

This beach is located on Long Island's largest freshwater lake, Lake Ronkonkoma. In addition to 350 yards of beach access, there are many recreational opportunities for its visitors including tennis courts, basketball and handball courts, and playgrounds. Amenities include picnic area, beach ramp, outdoor showers, and a food stand. This is a Tier I beach.

The description above was copied from or heavily based on Swim Guide, with permission.

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