Water Temperature of the Harlem River in Bronx, NY

Current Water Temperature

71.2°F

Measurement Time: Thursday, September 30, 2021, 7:45 AM EDT

Temperature Locations

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Local Points of Interest

Mill Pond Park; New York, NY

Harlem River

Station Name: HARLEM R AT MILL POND PARK ALCOVE 1 AT BRONX NY
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: -7 feet

Nearest Address:
725 Exterior St
Bronx, NY 10451
Bronx County

GPS Coordinates: 40.82452778, -73.9325833

Nearby Water Temperatures

Bronx River, Bronx, NY (4 mi)
Hudson River, Manhattan, NY (5.5 mi)
Hudson River, Yonkers, NY (7.9 mi)
Long Island Sound, Kings Point, NY (8.8 mi)
East River, New York, NY (9.6 mi)
East Creek, Sands Point, NY (12 mi)
Newark Bay, Newark, NJ (12.7 mi)
Newark Bay, Staten Island, NY (17 mi)
Rockaway Inlet, Brooklyn, NY (17.5 mi)
Hempstead Lake, Lakeview, NY (18.2 mi)
Frost Creek, Lattingtown, NY (18.6 mi)
Hog Island Channel, Island Park, NY (20.8 mi)
Whippany River, Pine Brook, NJ (21.7 mi)
Reynolds Channel, Point Lookout, NY (24.3 mi)
Sandy Hook Bay, Sandy Hook, NJ (25 mi)

Weather for Bronx, New York

Current Weather

80.1°F
Sunny
Sunny
81.7°F
103.9°F
74%
NW 9.6 mph
11.1 mph
93.1°F
75.5°F
0 in
25%
9 mi
1007 mbar
7

Five Day Weather Forecast

Sunny
Fri
H: 102°F
L: 74°F
Sunny
Sat
H: 90°F
L: 70°F
Moderate rain
Sun
H: 84°F
L: 69°F
Patchy rain nearby
Mon
H: 78°F
L: 63°F
Patchy rain nearby
Tue
H: 69°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 5.9 μg/m3
PM10: 6.2 μg/m3
Carbon Monoxide: 177 μg/m3
Nitrogen Dioxide: 4.9 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 122 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:55 AM
Sunset: 8:28 PM
Daylight: 15 hrs 5 mins
Moonrise: 2:51 AM
Moon Transit: 10:19 AM
Moonset: 6:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:49 AM - 12:19 AM

Minor Periods

5:31 PM - 7:01 PM
2:21 AM - 3:51 AM

Action Rating: 2 out of 5

Air Quality Alert issued June 11 at 2:38PM EDT by NWS Upton NY

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu June 11, 2026, 2:38 PM
Expires: Fri June 12, 2026, 2:45 PM

The New York State Department of Environmental Conservation has issued an Air Quality Health Advisory for the following counties: New York, Bronx, Kings, Queens, Richmond, and Westchester. until 11 PM EDT this evening. Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 100 for the pollutant of Ground Level Ozone. The Air Quality Index, or AQI, was created as an easy way to correlate levels of different pollutants to one scale. The higher the AQI value, the greater the health concern. When pollution levels are elevated, the New York State Department of Health recommends that individuals consider limiting strenuous outdoor physical activity to reduce the risk of adverse health effects. People who may be especially sensitive to the effects of elevated levels of pollutants include the very young, and those with preexisting respiratory problems such as asthma or heart disease. Those with symptoms should consider consulting their personal physician. For additional information, please visit the New York State Department of Environmental Conservation website at, https://on.ny.gov/nyaqi, or call the Air Quality Hotline at 1 800 5 3 5, 1 3 4 5.


Heat Advisory issued June 12 at 2:55AM EDT until June 12 at 8:00PM EDT by NWS Upton NY

Effective: Fri June 12, 2026, 2:55 AM
Expires: Fri June 12, 2026, 8:00 PM

* WHAT...Heat index values up to 103. * WHERE...Bronx, Kings (Brooklyn), New York (Manhattan), Northern Queens, Richmond (Staten Island), and Southern Queens Counties. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

New York City residents should call 3 1 1 to identify cooling center locations and obtain 'Beat the Heat' safety tips. A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. If you don't have home air conditioning, continue to seek out cool spaces each day as long as it remains hot, and for a few days after if your home is still hot. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1.


Friday, June 12, 2026

Weather Forecast

Sunny
102.2°F
74.1°F
86.4°F
60%
0 in
5%
0%
14.3 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 9.7 μg/m3
PM10: 10.2 μg/m3
Carbon Monoxide: 172.63 μg/m3
Nitrogen Dioxide: 14.68 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 83.83 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:55 AM
Sunset: 8:28 PM
Daylight: 15 hrs 5 mins
Moonrise: 2:51 AM
Moon Transit: 10:19 AM
Moonset: 6:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:49 AM - 12:19 AM

Minor Periods

5:31 PM - 7:01 PM
2:21 AM - 3:51 AM

Action Rating: 2 out of 5

Saturday, June 13, 2026

Weather Forecast

Sunny
89.8°F
69.5°F
80.3°F
42%
0 in
1%
0%
13 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 6.44 μg/m3
PM10: 6.75 μg/m3
Carbon Monoxide: 137.71 μg/m3
Nitrogen Dioxide: 11.45 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 82.92 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:55 AM
Sunset: 8:29 PM
Daylight: 15 hrs 5 mins
Moonrise: 3:30 AM
Moon Transit: 11:20 AM
Moonset: 7:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 AM
10:50 AM - 1:20 PM

Minor Periods

6:52 PM - 8:22 PM
3:00 AM - 4:30 AM

Action Rating: 3 out of 5

Sunday, June 14, 2026

Weather Forecast

Moderate rain
83.7°F
69°F
75.4°F
62%
0.49 in
69%
0%
16.1 mph
9.1


Air Quality

AQI: 2 - Moderate
PM2.5: 16.06 μg/m3
PM10: 17.02 μg/m3
Carbon Monoxide: 176.42 μg/m3
Nitrogen Dioxide: 26.99 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 81.88 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:56 AM
Sunset: 8:29 PM
Daylight: 15 hrs 6 mins
Moonrise: 4:21 AM
Moon Transit: 12:26 AM
Moonset: 8:37 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

1:37 AM - 4:07 AM
11:56 AM - 2:26 PM

Minor Periods

8:07 PM - 9:37 PM
3:51 AM - 5:21 AM

Action Rating: 5 out of 5

Monday, June 15, 2026

Weather Forecast

Patchy rain nearby
77.6°F
62.7°F
71.1°F
51%
0.01 in
17%
0%
13.4 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 4.45 μg/m3
PM10: 4.6 μg/m3
Carbon Monoxide: 128.28 μg/m3
Nitrogen Dioxide: 8 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 69.67 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:56 AM
Sunset: 8:29 PM
Daylight: 15 hrs 6 mins
Moonrise: 5:24 AM
Moon Transit: 1:34 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

2:45 AM - 5:15 AM
1:04 PM - 3:34 PM

Minor Periods

9:11 PM - 10:41 PM
4:54 AM - 6:24 AM

Action Rating: 5 out of 5

Tuesday, June 16, 2026

Weather Forecast

Patchy rain nearby
68.8°F
62.3°F
65.4°F
62%
0.05 in
57%
0%
7.8 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 7.82 μg/m3
PM10: 7.86 μg/m3
Carbon Monoxide: 166.11 μg/m3
Nitrogen Dioxide: 21.42 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 33.56 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:56 AM
Sunset: 8:30 PM
Daylight: 15 hrs 6 mins
Moonrise: 6:39 AM
Moon Transit: 2:40 PM
Moonset: 10:32 PM
Moon Phase: New
Moon Illumination: 1.0%

Best Times for Fishing or Hunting

Major Periods

3:52 AM - 6:22 AM
2:10 PM - 4:40 PM

Minor Periods

10:02 PM - 11:32 PM
6:09 AM - 7:39 AM

Action Rating: 3 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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