Water Temperature of the Peconic River in Riverhead, NY

Current Water Temperature

43.7°F

Measurement Time: Friday, March 20, 2026, 12:54 AM EDT

Temperature Locations

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Local Points of Interest

Colonels Island; Flanders, NY

Peconic River

Station Name: PECONIC RIVER AT COUNTY HWY 105 AT RIVERHEAD NY
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
Cross River Dr
Riverhead, NY 11946
Suffolk County

GPS Coordinates: 40.91777778, -72.6386667

Nearby Water Temperatures

Orient Harbor, Orient, NY (23 mi)
Flax Pond, Old Field, NY (26.5 mi)
Great South Bay, West Sayville, NY (27.3 mi)
New Haven Harbor, New Haven, CT (28.9 mi)
Connecticut River, Old Lyme, CT (31.2 mi)
Housatonic River, Stratford, CT (31.3 mi)
Bridgeport Harbor, Bridgeport, CT (33.4 mi)
Rooster River, Bridgeport, CT (35.2 mi)
Fort Pond Bay, Montauk, NY (36.6 mi)
Mill River, Southport, CT (36.7 mi)
Mill River, Fairfield, CT (36.8 mi)
Quinnipiac River, Wallingford, CT (38.3 mi)
East Branch Eightmile River, Lyme, CT (38.6 mi)
Eightmile River, East Haddam, CT (39.5 mi)
Saugatuck River, Westport, CT (40.1 mi)

Weather for Riverhead, New York

Current Weather

36°F
Clear
Clear
29.2°F
34°F
92%
WSW 8.7 mph
16.6 mph
28.4°F
29.5°F
0 in
25%
9 mi
1020 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 52°F
L: 33°F
Moderate rain
Sat
H: 51°F
L: 40°F
Overcast
Sun
H: 48°F
L: 36°F
Moderate rain
Mon
H: 51°F
L: 34°F
Partly Cloudy
Tue
H: 40°F
L: 33°F

Air Quality

AQI: 1 - Good
PM2.5: 19.75 μg/m3
PM10: 21.25 μg/m3
Carbon Monoxide: 283.85 μg/m3
Nitrogen Dioxide: 18.35 μg/m3
Sulphur Dioxide: 7.65 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 10:27 AM
Sunset: 7:03 PM
Daylight: 12 hrs 9 mins
Moonrise: 7:26 AM
Moon Transit: 2:15 PM
Moonset: 9:19 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

3:44 AM - 6:14 AM
1:45 PM - 4:15 PM

Minor Periods

8:49 PM - 10:19 PM
6:56 AM - 8:26 AM

Action Rating: 4 out of 5

Friday, March 20, 2026

Weather Forecast

Patchy rain nearby
52.3°F
32.7°F
42.4°F
79%
0.11 in
63%
0%
28 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 11.91 μg/m3
PM10: 14.69 μg/m3
Carbon Monoxide: 224.45 μg/m3
Nitrogen Dioxide: 9.15 μg/m3
Sulphur Dioxide: 3.95 μg/m3
Ozone: 89.24 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 10:27 AM
Sunset: 7:03 PM
Daylight: 12 hrs 9 mins
Moonrise: 7:26 AM
Moon Transit: 2:15 PM
Moonset: 9:19 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

3:44 AM - 6:14 AM
1:45 PM - 4:15 PM

Minor Periods

8:49 PM - 10:19 PM
6:56 AM - 8:26 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Moderate rain
51.1°F
39.9°F
44.9°F
81%
0.25 in
80%
0%
23.5 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 9.09 μg/m3
PM10: 11.11 μg/m3
Carbon Monoxide: 217.85 μg/m3
Nitrogen Dioxide: 9.55 μg/m3
Sulphur Dioxide: 3.02 μg/m3
Ozone: 86.92 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:00 AM
Sunset: 7:04 PM
Daylight: 12 hrs 11 mins
Moonrise: 7:53 AM
Moon Transit: 3:08 PM
Moonset: 10:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
2:38 PM - 5:08 PM

Minor Periods

10:07 PM - 11:37 PM
7:23 AM - 8:53 AM

Action Rating: 3 out of 5

Sunday, March 22, 2026

Weather Forecast

Overcast
47.7°F
35.8°F
41.7°F
82%
0 in
0%
0%
22.8 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 13.33 μg/m3
PM10: 16.86 μg/m3
Carbon Monoxide: 222.09 μg/m3
Nitrogen Dioxide: 17.3 μg/m3
Sulphur Dioxide: 3.39 μg/m3
Ozone: 77.84 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 12:00 AM
Sunset: 7:05 PM
Daylight: 12 hrs 14 mins
Moonrise: 8:26 AM
Moon Transit: 4:04 PM
Moonset: 11:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
3:34 PM - 6:04 PM

Minor Periods

12:00 AM - 12:00 AM
7:56 AM - 9:26 AM

Action Rating: 2 out of 5

Monday, March 23, 2026

Weather Forecast

Moderate rain
50.7°F
34.1°F
45.6°F
79%
0.27 in
85%
0%
28.6 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 5.6 μg/m3
PM10: 6.91 μg/m3
Carbon Monoxide: 221.66 μg/m3
Nitrogen Dioxide: 9.09 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 84.4 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:00 AM
Sunset: 7:06 PM
Daylight: 12 hrs 17 mins
Moonrise: 9:07 AM
Moon Transit: 5:04 PM
Moonset: 12:56 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
4:34 PM - 7:04 PM

Minor Periods

8:37 AM - 10:07 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, March 24, 2026

Weather Forecast

Partly Cloudy
40.2°F
32.5°F
34.5°F
65%
0 in
0%
0%
19 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.68 μg/m3
PM10: 4.36 μg/m3
Carbon Monoxide: 206.88 μg/m3
Nitrogen Dioxide: 8.13 μg/m3
Sulphur Dioxide: 2.21 μg/m3
Ozone: 81.31 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:00 AM
Sunset: 7:07 PM
Daylight: 12 hrs 20 mins
Moonrise: 9:58 AM
Moon Transit: 6:07 PM
Moonset: 1:11 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

7:31 AM - 10:01 AM
5:37 PM - 8:07 PM

Minor Periods

9:28 AM - 10:58 AM
12:41 AM - 2:11 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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