Water Temperature of the Connecticut River in Old Lyme, CT
Current Water Temperature
Measurement Time: Sunday, June 14, 2026, 3:45 AM EDT
Temperature Locations
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Local Points of Interest
Ferry Landing State ParkStation Name: CONNECTICUT RIVER AT OLD LYME, CT
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 20 feet
Nearest Address:
336 Ferry Rd
Old Lyme, CT 06371
New London County
GPS Coordinates: 41.3125983, -72.3459166
Nearby Water Temperatures
East Branch Eightmile River, Lyme, CT (8 mi)Eightmile River, East Haddam, CT (8.9 mi)
Orient Harbor, Orient, NY (12.3 mi)
Thames River, New London, CT (13.6 mi)
Thames River, Groton, CT (13.9 mi)
Mystic River, Noank, CT (18.8 mi)
Connecticut River, Middletown, CT (19.1 mi)
Mystic Harbor, Mystic, CT (19.7 mi)
Mystic River, Mystic, CT (19.9 mi)
Mystic River, Old Mystic, CT (20.4 mi)
Yantic River, Norwich, CT (20.6 mi)
Pawcatuck River, Westerly, RI (27 mi)
Fort Pond Bay, Montauk, NY (27.2 mi)
Quinnipiac River, Wallingford, CT (27.4 mi)
New Haven Harbor, New Haven, CT (29.3 mi)
Weather for Old Lyme, Connecticut
Current Weather

Five Day Weather Forecast

Sun
H: 93°F
L: 65°F

Mon
H: 75°F
L: 61°F

Tue
H: 72°F
L: 57°F

Wed
H: 74°F
L: 61°F

Thu
H: 79°F
L: 64°F
Air Quality
Nitrogen Dioxide: 13.2 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 52 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 8:24 PM
Daylight: 15 hrs 9 mins
Moon Transit: 12:20 AM
Moonset: 8:33 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
1:44 AM - 4:14 AM11:50 AM - 2:20 PM
Minor Periods
8:03 PM - 9:33 PM3:42 AM - 5:12 AM
Action Rating: 5 out of 5
Coastal Flood Statement issued June 13 at 2:00PM EDT until June 16 at 2:00AM EDT by NWS Boston/Norton MA
Effective: Sat June 13, 2026, 2:00 PM
Expires: Sun June 14, 2026, 8:00 AM
* WHAT...Up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways (4.4 to 7.2 feet Mean Lower Low Water) around the evening high tides. * WHERE...Washington, Southern Bristol MA, Southern Plymouth MA, Southeast Providence RI, Eastern Kent RI, Bristol RI, and Newport RI Counties. * WHEN...From 6 PM EDT this evening through late Monday night. The evening high tide periods tonight, Sunday night and Monday night are of the greatest concern. * IMPACTS...Minor coastal flooding occurs along the most vulnerable shoreline locales in Newport, Portsmouth and Middletown. This includes flooding at parking lots near beaches in Newport, and a portion of Hazard Road. Minor coastal flooding also occurs on several streets in the Common Fence Point area.
Do not drive through flooded roadways.
Rip Current Statement issued June 13 at 3:33PM EDT until June 14 at 9:00PM EDT by NWS Upton NY
Effective: Sat June 13, 2026, 3:33 PM
Expires: Sun June 14, 2026, 6:00 AM
* WHERE...Southeast Suffolk County. * WHEN...For the High Rip Current Risk, from Sunday morning through Sunday evening. For the Coastal Flood Statement, Sunday evening. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. Life- threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Additional minor coastal flooding is possible Monday night.
Do not drive through flooded roadways. If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.
Rip Current Statement issued June 13 at 3:33PM EDT until June 14 at 9:00PM EDT by NWS Upton NY
Effective: Sat June 13, 2026, 3:33 PM
Expires: Sun June 14, 2026, 6:00 AM
* WHAT...Dangerous rip currents expected. * WHERE...Kings (Brooklyn) and Southwest Suffolk Counties. * WHEN...From Sunday morning through Sunday evening. * IMPACTS...Life-threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.
If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.
Coastal Flood Statement issued June 13 at 3:33PM EDT until June 14 at 11:00PM EDT by NWS Upton NY
Effective: Sat June 13, 2026, 3:33 PM
Expires: Sun June 14, 2026, 6:00 AM
* WHERE...Southeast Suffolk County. * WHEN...For the High Rip Current Risk, from Sunday morning through Sunday evening. For the Coastal Flood Statement, Sunday evening. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline. Life- threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Additional minor coastal flooding is possible Monday night.
Do not drive through flooded roadways. If you enter the surf zone, always have a flotation device with you and swim near a lifeguard. If caught in a rip current, relax and float, and do not swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and yell or wave for help.
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.47 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 91.46 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 8:24 PM
Daylight: 15 hrs 9 mins
Moon Transit: 12:20 AM
Moonset: 8:33 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
1:44 AM - 4:14 AM11:50 AM - 2:20 PM
Minor Periods
8:03 PM - 9:33 PM3:42 AM - 5:12 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.1 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 85.63 μg/m3
Astronomical
Sun Transit: 12:49 AM
Sunset: 8:25 PM
Daylight: 15 hrs 9 mins
Moon Transit: 1:28 PM
Moonset: 9:36 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
2:52 AM - 5:22 AM12:58 AM - 3:28 PM
Minor Periods
9:06 PM - 10:36 PM4:45 AM - 6:15 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 0.36 μg/m3
Ozone: 68.25 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 8:25 PM
Daylight: 15 hrs 10 mins
Moon Transit: 2:33 PM
Moonset: 10:27 PM
Moon Phase: New
Moon Illumination: 1.0%
Best Times for Fishing or Hunting
Major Periods
3:59 AM - 6:29 AM2:03 PM - 4:33 PM
Minor Periods
9:57 PM - 11:27 PM6:01 AM - 7:31 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.61 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 84.25 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 8:25 PM
Daylight: 15 hrs 10 mins
Moon Transit: 3:34 PM
Moonset: 11:05 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%
Best Times for Fishing or Hunting
Major Periods
5:02 AM - 7:32 AM3:04 PM - 5:34 PM
Minor Periods
12:00 AM - 12:00 AM7:20 AM - 8:50 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.63 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 82.44 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 8:26 PM
Daylight: 15 hrs 10 mins
Moon Transit: 4:29 PM
Moonset: 12:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%
Best Times for Fishing or Hunting
Major Periods
5:59 AM - 8:29 AM3:59 PM - 6:29 PM
Minor Periods
8:40 AM - 10:10 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
